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6

Monitoring SAN Router Operation and Connections

6-17

Viewing Statistics

RMON (EtherStats)

(continued)

• Undersize packets - The total number of packets received that

were less than 64 octets long (excluding framing bits, but
including FCS octets) and were otherwise well formed.

• Fragments - The total number of packets received that were less

than 64 octets in length (excluding framing bits but including FCS
octets) and had either a bad Frame Check Sequence (FCS) with
an integral number of octets (FCS Error) or a bad FCS with a
non-integral number of octets (Alignment Error). Note that it is
entirely normal for etherStatsFragments to increment. This is
because it counts both runts and noise hits.

• Oversize packets - The total number of packets received that

were longer than 1518 octets (excluding framing bits, but
including FCS octets), and had either a bad Frame Check
Sequence (FCS) with an integral number of octets (FCS Error) or
a bad FCS with a non-integral number of octets (Alignment Error).
Note that this definition of jabber is different than the definition in
IEEE-802.3 section 8.2.1.5 (10BASE5) and section 10.3.1.4
(10BASE2). These documents define jabber as the condition
where any packet exceeds 20 ms. The allowed range to detect
jabber is between 20 ms and 150 ms.
The oversize packet total includes the jumbo frame count, if the
Jumbo Frames feature is enabled.

• Packets (64 octets) - The total number of packets (including bad

packets) received that were 64 octets in length (excluding framing
bits but including FCS octets).

• Packets (65-127 octets) - The total number of packets (including

bad packets) received that were between 65 and 127 octets in
length inclusive (excluding framing bits but including FCS octets).

• Packets (128-255 octets) - The total number of packets (including

bad packets) received that were between 128 and 255 octets in
length inclusive (excluding framing bits but including FCS octets).

• Packets (256-511 octets) - The total number of packets (including

bad packets) received that were between 256 and 511 octets in
length inclusive (excluding framing bits but including FCS octets).

• Packets (512-1023 octets) - The total number of packets

(including bad packets) received that were between 512 and 1023
octets in length inclusive (excluding framing bits but including
FCS octets).

• Packets (1024-1518 octets) - The total number of packets

(including bad packets) received that were between 1024 and
1518 octets in length inclusive (excluding framing bits but
including FCS octets).

Table 6-6

Gigabit Ethernet/Port Statistics (Continued)

Item

Meaning

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163
164
165
166
167
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Содержание Eclipse 2640 SAN

Страница 1: ...Eclipse 2640 SAN Router Administration and Configuration Manual P N 620 00203 020 REV A...

Страница 2: ...the right to license the computer software programs described in this document McDATA Corporation retains all rights title and interest in the computer software programs McDATA Corporation makes no wa...

Страница 3: ...ing the Management Port 2 9 Tips on using the Element Manager 2 11 Getting Help 2 11 Keyboard Shortcuts 2 11 Getting Write Permission 2 11 Granting Clipboard Access for Copy and Paste 2 12 Using with...

Страница 4: ...iguration Notes for All R_Ports on the Same Fabric 3 13 Guidelines for Using Zone Policy 3 13 R_port Compatibility 3 14 Chapter 4 Configuring iSAN Connections Introduction 4 2 Configuring TCP Ports fo...

Страница 5: ...Connections Using the Element Manager Tools 6 2 Device View 6 2 System Information 6 6 Setting the Polling Interval 6 11 Using the System Log 6 12 Ping 6 12 Viewing Statistics 6 14 Gigabit Ethernet Po...

Страница 6: ...uter Administration and Configuration Manual vi Contents Backup 7 12 Restore 7 13 Retrieving and Clearing the System Log 7 14 Chapter 8 Troubleshooting Element Manager Troubleshooting 8 2 SAN Router T...

Страница 7: ...log Box 2 26 2 12 Date Time Dialog Box 2 27 2 13 Inband Address Configuration Dialog Box 2 29 2 14 SNMP Communities Hosts Dialog Box 2 30 2 15 SNMP Traps Dialog Box 2 34 2 16 SNMP Traps Filter Pull Do...

Страница 8: ...5 23 5 12 Computer Management Window 5 24 5 13 Sample Authentication Configuration 5 26 5 14 RADIUS Server on Management IP Subnet Static Routes 5 27 5 15 RADIUS Server Configuration Dialog Box 5 28...

Страница 9: ...og Box 6 24 6 20 Chart Options Dialog Box 6 26 6 21 MAC Forward Table Dialog Box 6 27 6 22 IP Forward Table Dialog Box 6 29 6 23 ARP Table Dialog Box 6 30 6 24 Storage Name Server mSNS Report Dialog B...

Страница 10: ...x Eclipse 2640 SAN Router Administration and Configuration Manual Figures...

Страница 11: ...Only Remote Connections Parameters 4 16 4 2 Remote Connections Parameters 4 19 5 1 Static Route 5 38 6 1 Port LED Colors 6 3 6 2 Eclipse 2640 Port Border Colors in the Device View 6 4 6 3 System Statu...

Страница 12: ...xii Eclipse 2640 SAN Router Administration and Configuration Manual Tables 8 1 Element Manager Problems and Solutions 8 2 8 2 SAN Router Problems and Solutions 8 5...

Страница 13: ...configuring the SAN Router for your network Chapter 2 Configuring System Basics provides steps for configuring the SAN Router s basic functions Chapter 3 Configuring RADs and mSAN Connections provides...

Страница 14: ...tation Other publications that provide additional information about this SAN Router include SAN Routing E_Port and iFCP Concepts and Technologies Configuration Options Design Guidelines Best Practices...

Страница 15: ...McDATA products and services The Solution Center is staffed 24 hours a day 7 days a week including holidays NOTE To expedite warranty entitlement please have your product serial number available McDAT...

Страница 16: ...ion Comments We sincerely appreciate any comments about this publication Did you find this manual easy or difficult to use Did it lack necessary information Were there any errors Could its organizatio...

Страница 17: ...McDATA Corporation All rights reserved McDATA the McDATA logo Fabricenter HotCAT Intrepid Multi Capable Storage Network Solutions Networking the World s Business Data nViewTM nScaleTM OPENready SANavi...

Страница 18: ...xviii Eclipse 2640 SAN Router Administration and Configuration Manual...

Страница 19: ...1 Overview This chapter provides an introduction to the EclipseTM 2640 SAN Router Use the following links to move through this chapter Section Page Introduction 1 2 SAN Router Features 1 4 SAN Router...

Страница 20: ...ther parts For disaster recovery the backup site can be quite distant thanks to McDATA s patent pending FastWrite technology which can sustain wire speed throughput in spite of high link latency The T...

Страница 21: ...t power supplies and cooling fans The SAN Router has two power supplies each with an AC power receptacle and two cooling fans Each power supply fan unit is a field replaceable unit FRU Up to 16 duplex...

Страница 22: ...evices over a TCP IP network iSCSI A TCP port can be configured for iFCP or iSCSI R_Port Support for E_Port or standard port through the SAN Router R_Port allows you to share devices between SANs whil...

Страница 23: ...r can be used to look at current system log messages from the connected SAN Router Compression Compression technology available on intelligent ports identifies repetitive patterns in a data stream and...

Страница 24: ...e port CONSOLE for connection to a local terminal or remote terminal The maintenance port provides an alternate way to configure the SAN Router in addition to the normal http scenario Although this po...

Страница 25: ...s before performing specific configuration for various network connections Use the following links to move through the chapter Section Page Configuring the SAN Router 2 2 Setting Parameters Through th...

Страница 26: ...etained even after the SAN Router is reset to factory results The following sections describe the steps required to set the basic parameters for the SAN Router before you can carry out advanced config...

Страница 27: ...p 1 2 3 etc NOTE The management port address must be configured correctly so that you can access the SAN Router through the Element Manager and SANvergence manager for further configuration tasks You...

Страница 28: ...subnet mask subnet mask of the management port 7 Enter a permanent route for a network management station using the command set mgmt permroute addr mask gateway where address IP address of the networ...

Страница 29: ...outers The software is embedded in every SAN Router so it does not need to be installed as a separate program on the management workstation for your mSAN Before you begin using the Element Manager mak...

Страница 30: ...JRE v1 5 6MB for SANvergence Manager 50 MB for JRE v1 5 6MB for SANvergence Manager a DirectX 9 0b or later must be installed on the management workstation if additional software programs such as EFCM...

Страница 31: ...Static Routing iSCSI Device Configuration Configuration menu Devices RADIUS Server Configuration iFCP Configuration Configuration menu Setup Remote Connections Port Redundancy Reports and Statistics...

Страница 32: ...for example 192 168 2 16 in the Address field Some browsers may require http before a hostname The Element Manager login dialog box appears Figure 2 1 Element Manager Login Dialog Box 2 Type the acce...

Страница 33: ...y to use Element Manager If SANvergence Manager software is installed click Element Manager button on the SANvergence screen Configuring the Management Port To configure the out of band management por...

Страница 34: ...subnet mask address for the management port 3 Click Edit Gateway to add the IP address of the gateway router to the static route table if any of your management stations are on a different subnet tha...

Страница 35: ...rsion information about Element Manager choose About Element Manager from the Help menu Keyboard Shortcuts The following function keys provide keyboard shortcuts Getting Write Permission You can login...

Страница 36: ...e dialog box to another in another application However you can grant clipboard access by editing the Java plug in policy file The policy file is named plug in installation directory lib security java...

Страница 37: ...this could be a privacy risk A malicious or malfunctioning applet could fill the system clipboard with very large amounts of data consuming available disk space on your system 2 Add these lines to th...

Страница 38: ...r Apply in each dialog box to save the changes Apply sets the changes to the SAN Router The changes are stored in memory only on the SAN Router not to flash OK is similar to Apply but also dismisses t...

Страница 39: ...IP addresses with SAN Routers the external iFCP iSCSI network and the IP network When sending storage traffic to the external network SAN Routers uses the external IP addresses associated with the TCP...

Страница 40: ...ports that are connected to the external IP network and one or more ports that are connected to the internal IP network Each TCP port connects to each network both the internal and external networks a...

Страница 41: ...ent Manager Figure 2 6 Inband Address Configuration Dialog Box The iFCP iSCSI Port IP Address The external iFCP iSCSI port IP address is used to open and terminate TCP connections that transport stora...

Страница 42: ...eeds a gateway address of an external router that can forward the storage traffic to the remote iFCP iSCSI port This Next Hop Gateway Address is the first hop gateway address If the IP address of the...

Страница 43: ...nal IP address is local to the SAN Router it must be on the same subnet as the router inband IP address Storage traffic from devices directly connected to the SAN Router is delivered from the router i...

Страница 44: ...ith Firewalls The iFCP and iSCSI protocols use TCP for transmission TCP provides several benefits such as Retransmission of any packets dropped by the network Guaranteed in order delivery Fields that...

Страница 45: ...ber and the destination port number When firewalls are used it is sometimes necessary to program the firewall with the port numbers used by iFCP or iSCSI otherwise the firewall may block the traffic T...

Страница 46: ...ministration and Configuration Manual Configuring IP Addresses Ping operation results 37010 The following datapath ports must be open if you want to manage across a firewall using SANvergence Manager...

Страница 47: ...ing the SAN Routing Cluster ID 4 Configuring SNMP 5 Configuring the system IP Addresses and static routes 6 Configuring System Metro Storage Name Server mSNS 7 Configuring new device zone settings The...

Страница 48: ...re 2 9 System Properties Dialog Box 2 Login banner lets you customize the banner which gets displayed in the HTML starting page above the login dialog box The banner may be up to 25 lines long with up...

Страница 49: ...s saves the currently running configuration to flash memory Setting the SAN Routing Cluster ID The R_Port SAN Routing Cluster ID is used by the SAN Router R_Ports to register a unique virtual node WWN...

Страница 50: ...o re discover the SAN Router Procedure To set the cluster ID follow these instructions 1 Select Configuration System Operations to display the System Operations dialog box Figure 2 11 System Operation...

Страница 51: ...Figure 2 12 Figure 2 12 Date Time Dialog Box 2 Select the SNTP operating mode for the SAN Router s internal clock SNTP Disabled Select this mode to allow the SAN Router to keep time using its own inte...

Страница 52: ...nts to adjust the time to their local time zone as needed Daylight Savings Time Select On or Off from the drop down list if daylight savings time pertains to your time zone The SAN Router does not aut...

Страница 53: ...fferent from the management port IP address and must be on a different subnet Having them in the same subnet may cause the SAN Router to become isolated from the backbone network 4 The default gateway...

Страница 54: ...ox Figure 2 14 on page 2 30 Figure 2 14 SNMP Communities Hosts Dialog Box 2 Type the read only password and read modify password community strings for the SAN Router 3 Optionally enter a list of IP ad...

Страница 55: ...213 Trap Name Description Severity 0 Cold Start The SAN Router is powered on or rebooted Critical 2 Link Down An Fibre Channel port has lost an active link signal This can also be caused by manually d...

Страница 56: ...ted maximum Critical 8 Fan Failed One or more fans have failed in the SAN Router Warning 9 Power Supply Changed State A power supply has changed state from up to down or down to up Warning 14 iFCP Bac...

Страница 57: ...ction The connection may be a normal connection or a backup connection The text message in the variable binding list includes the IP address of the iFCP port making the connection and the IP address o...

Страница 58: ...ith a severity filter Use the severity level drop down list to specify the traps with specific severity levels that should be sent to each address Figure 2 16 SNMP Traps Filter Pull Down Menu 3 Click...

Страница 59: ...fault all new devices attached to the SAN Router including router attached devices RADs are unzoned They are not part of any zone and cannot talk to any other device Initially they are not even part o...

Страница 60: ...ash memory Static Routes Static routes are used to route non storage payload traffic such as management traffic or RADIUS A SAN Router contains several different IP subnets The iFCP iSCSI ports on a u...

Страница 61: ...tely on the bottom of the Static Routing Configuration dialog box Figure 2 19 on page 2 38 A permanent route differs from a standard static route because it cannot be deleted and remains present even...

Страница 62: ...Destination IP is the IP address of the destination subnetwork Destination IP Mask is the subnet mask of the destination subnetwork Next Hop is the directly reachable IP address to which the traffic s...

Страница 63: ...manage an SAN Router if different management stations reside in different subnets 1 Define static routes for each management subnet as described in Static Routes 2 Add a default route by clicking on t...

Страница 64: ...new one The default route cannot be disabled but the next hop default gateway may be changed at any time Click the Default Gateway button as a shortcut method to add or edit the default route 3 Click...

Страница 65: ...rts for attaching directly to Fibre Channel devices such as servers and storage Use the following links to move through the chapter Section Page Introduction 3 2 Configuring the FC Ports for Router At...

Страница 66: ...e Channel information compliant with the standard FC SW protocol Additional device information is exchanged when other configuration steps are complete as specified in the SANvergence Manager User Man...

Страница 67: ...1 12 as a R_Ports For details refer to Configuring R_Ports for mSANs on page 3 6 Configuring and Managing Zones in R_Port Connected Networks SANvergence Manager Version 4 7 or higher is required to ma...

Страница 68: ...rts on the SAN Router as R_Ports for attaching directly to an Fibre Channel device To configure R_Ports for attaching to an Fibre Channel switch mSAN refer to Configuring R_Ports for mSANs on page 3 6...

Страница 69: ...t to 1 Gb sec or 2 Gb sec 5 Select Enable Port to enable the selected port 6 In the Fibre Channel Port Parameters select one of the following types to register RADs FC Auto Ports that automatically se...

Страница 70: ...w to configure an Fibre Channel port as an R_Port to attach Fibre Channel devices and mSANs 1 Perform steps 1 through 7 under Configuring the FC Ports for Router Attached Devices on page 3 4 2 In the...

Страница 71: ...Configuring RADs and mSAN Connections 3 7 Configuring R_Ports for mSANs Figure 3 2 FC Ethernet Port Configuration Dialog Box Table 3 1 on page 3 8 describes the current R_Port parameters that may appe...

Страница 72: ...the mSNS in the mSAN The allowed range depends on the Interconnection Mode setting described below For Brocade mode 1 to 239 126 and 127 are reserved For Open Fabric1 0 mode 1 to 29 30 and 31 are res...

Страница 73: ...is appended to the active zone set on the fabric connected by the R_Port No Zone Synch The zone set information between the mSAN and the fabric connected by the R_Port is not synchronized The SAN Rout...

Страница 74: ...ut values are displayed and may not be changed EDTOV Error detection timeout value in seconds This is a short timeout used to detect an error condition The value EDTOV represents a reasonable timeout...

Страница 75: ...h the SAN Router and the Fibre Channel switch with no pre configured zones Port 4 of a SAN Router will be connected to a port on the Fibre Channel switch The FC server is connected to port 3 The FC WW...

Страница 76: ...ne where the SAN Router is located then select mSAN Configuration to display the mSAN Configuration screen Confirm that all the devices from the fabric are shown under the R_Port port 4 that has the i...

Страница 77: ...using zone policy Append Router Zones is the default setting when an R_Port is first configured No Zone Synchronization may be preferred if the native FC SAN management utility is used for configuring...

Страница 78: ...s in a seamless fashion we recommend that the user not inter mix switch vendors in the same fabric Table 3 2 R_Port Compatibility Connection Modes FC Switch Firmware Release McDATA Fabric 1 0 Open Fab...

Страница 79: ...nfiguring the SAN Router ports for iFCP and setting up iFCP connections Use the following links to move through the chapter Section Page Introduction 4 2 Configuring TCP Ports for iFCP 4 4 Configuring...

Страница 80: ...se found in wide area networks An iSAN has at least two SAN Routers that are interconnected using iFCP connections An iSAN is also a collection of two or more mSANs SAN routing done within an iSAN is...

Страница 81: ...ctions for configuring the SAN Router to create an mSAN by attaching fabrics to the SAN Router R_Ports Chapter 4 provides steps for interconnecting mSANs with remote mSANs over a WAN Connections to th...

Страница 82: ...cribes how to configure the TCP ports port numbers 13 16 on the Eclipse 2640 SAN Router for iFCP connections This involves the following procedures Setting the general port parameters Setting advanced...

Страница 83: ...onal state 3 Type a label for this port in the Port Name field 4 Set the port speed under the Port Speed list if needed and select the Enable Port checkbox 5 Select or clear the Autonegotiations check...

Страница 84: ...P Parameters The SAN Router provides options to optimize the TCP port behavior through a set of advanced parameters Use the following procedure to configure the advanced TCP parameters 1 Click the Adv...

Страница 85: ...y The range is from 512 to 4096 the default size is 1500 Min Auto Manual Does auto discovery and uses the minimum of the discovered and configured values Storage optimized TCP Parameters Storage optim...

Страница 86: ...t that can cause congestion difficulties 3 Select Reduced Slow Start Timeout to reduce the minimum Slow Start timeout from 500 msec to 150 msec This improves responsiveness to congestion events that t...

Страница 87: ...from the SAN Router s inband subnet 3 Specify the Subnet mask This is the subnet mask to use for this port after the next port reset or system reset 4 Specify the Next Hop Gateway Address This is the...

Страница 88: ...cluded in your software version Compression technology takes advantage of replicated characters or patterns being sent across a network port to effectively increase throughput on that port Only the pa...

Страница 89: ...ion Method field is enabled only if the Compression Level is SW or SW as needed The multiple compression methods allow a trade off between compression rate speed and compression ratio amount of compre...

Страница 90: ...ual target at the rate that the target can handle Therefore FastWrite makes up for the round trip delays typical of most WAN links Note that FastWrite does not spoof Write Status commands thus ensurin...

Страница 91: ...e g OC3 link user may experience ELS timeout ELS timeout occurs when ELSs have command timeout values shorter than normal Read Write commands and when ELSs are queued behind the large amount of Read...

Страница 92: ...FCP connections select the following options from the Configuration iFCP tab Select Setup to configure the mSAN ID for the iFCP function Select Remote Connections to configure connection specific para...

Страница 93: ...TE The SAN Router at each end of the iFCP link and thus the mSANs at each end must have different mSAN IDs Configure Remote iFCP Connections For each SAN Router you must specify a list of the remote S...

Страница 94: ...mSAN not the local mSAN The remote mSAN ID may be 0 if the connection is not active MTU The actual MTU size used by the connection The actual MTU may be different than the discovered MTU if the port M...

Страница 95: ...ved These connections inherit their settings from the corresponding primary connection CAUTION When exporting zones across iFCP make sure the zone members are device WWNs and not fabric ports as fabri...

Страница 96: ...ration Manual Configuring iFCP Connections Figure 4 7 Add Remote Connection Dialog Box Use this dialog box to add new remote iFCP connections or edit parameters for existing connections You can modify...

Страница 97: ...ter that is providing TCP access to the remote SAN Enter the remote SAN Routers WAN port address Connection State Select Enabled from the drop down list for normal sharing of devices between SANs Sele...

Страница 98: ...licking on each connection 3 To remove iFCP connections select one or more rows in the table and click Remove Removing a remote connection terminates all data sessions to that SAN Router All devices i...

Страница 99: ...nection If you wish to initiate a reconnection attempt for example after you ve corrected the cause of the connection failure select the connection and click the Restart button 5 Press F5 or click the...

Страница 100: ...as pair of ports having connections to a remote SAN exporting different zones to split the load If either port fails the remaining port takes over the entire load To configure a backup for the SAN Ro...

Страница 101: ...t like switching them to the backup port earlier is disruptive All data sessions to the affected devices are terminated The remote devices are temporarily de registered from the local SAN and then re...

Страница 102: ...xample shows SAN Routers connected directly to storage devices SAN Routers can also connect through FC switches Figure 4 10 MAN WAN Links Since the WAN MAN connection is a TCP based iFCP link TCP auto...

Страница 103: ...en the local and remote devices is automatic and no fabric resets are necessary to reconverge the network A simplified version of this is illustrated in Figure 4 11 on page 4 25 Figure 4 11 Automatic...

Страница 104: ...arameters and enter the following Port IP 192 168 27 131 Subnet Mask 255 255 255 0 Next Hop Gateway Address 0 0 0 0 Internal Address 192 168 20 132 Click OK 5 Select Configuration iFCP to display the...

Страница 105: ...he SAN Router before you can configure the iFCP port 12 Select Configuration Ports FC Ethernet when Element Manager displays the FC Ethernet Port Configuration dialog box Figure 4 12 on page 4 27 Figu...

Страница 106: ...with a green port outline after the SAN Router comes up again Setting up Remote and Exported Connections and Zones 1 Open the Element Manager for the SAN Router 192 168 12 130 2 Select Configuration...

Страница 107: ...same as the one noted for the other SAN Router Select the first FC disk port WWN from the JBOD located off the attached port under the right column Click Add with the Remote Zone highlighted on the l...

Страница 108: ...4 4 30 Eclipse 2640 SAN Router Administration and Configuration Manual Example Configurations and Procedures...

Страница 109: ...re the SAN Router to support line rate communication between iSCSI initiators and Fibre Channel targets Use the following links to move through the chapter Section Page Introduction 5 2 Configuring iS...

Страница 110: ...e devices as shown in Figure 5 1 The initiators and targets FC or iSCSI can be either directly connected to the SAN Router or connected across an FC or IP network as shown Figure 5 1 iSCSI Initiators...

Страница 111: ...P network For a direct attached configuration the server must be physically connected to the iSCSI capable ports 13 16 on the SAN Router When connected via an intermediate IP network the server must h...

Страница 112: ...N Router Refer to Configuring iSCSI Authentication on page 5 25 Configuring iSCSI Ports You can configure the TCP ports on the SAN Router ports 13 16 to support iSCSI Configuring the iSCSI ports invol...

Страница 113: ...nal state 3 Type a label for this port in the Port Name field 4 Set the port speed under the Port Speed list if needed Select the Enable Port checkbox 5 Select or clear the Autonegotiations check box...

Страница 114: ...of the port as iSCSI Setting the Advanced TCP Parameters The SAN Router provides options to optimize the TCP port behavior for storage traffic in a dedicated enterprise network through a set of advanc...

Страница 115: ...value for MTU size and DOES NOT do auto discovery The range is from 512 to 4096 the default size is 1500 Min Auto Manual Does auto discovery and uses the minimum of the discovered and configured value...

Страница 116: ...ced Slow Start Timeout to reduce the minimum Slow Start timeout from 500 msec to 150 msec This improves responsiveness to congestion events that trigger Slow Start 4 Disable Standard Congestion Avoida...

Страница 117: ...o configure for your iSCSI initiator Refer to The iFCP iSCSI Port IP Address on page 2 17 NOTE This IP address must be in a subnet different from the SAN Router s inband subnet 3 Specify the Subnet ma...

Страница 118: ...of non contiguous sequence numbers to reduce the amount of retransmitted data when packets are lost Enable this for better performance in congested networks assuming the remote device also supports SA...

Страница 119: ...ates the actual data underrun details Target Write Padding Some earlier iSCSI initiators did not pad write data to 32 bit boundaries as required by the iSCSI specification To accommodate these initiat...

Страница 120: ...I initiators automatically re login Otherwise initiators will only re try logins for the specified time value set This parameter has no effect on HP UX First Burst Length KB The initiator and target n...

Страница 121: ...CSI Devices Automatically A convenient way to configure the access control list iSCSI initiators only is to allow the SAN Router to add any iSCSI initiator that attempts to log in Each newly discovere...

Страница 122: ...ss control list follow these steps 1 Obtain the iSCSI name of the device Some initiators and targets allow the user to configure a name Others use the method defined by the iSCSI standard to come up w...

Страница 123: ...rackets is the InitiatorName that the iSCSI initiator is attempting to login with 5 Select this string and press c to copy it to the clipboard Refer to the section titled Granting Clipboard Access for...

Страница 124: ...ipboard press v with the cursor in the iSCSI Identifier field NOTE Refer to iSCSI Devices Dialog Box Options and Data on page 5 17 for details on these fields 9 To edit previously entered information...

Страница 125: ...e iSCSI device The specific SAN Router port becomes the default route for traffic to the iSCSI device The port must be one of the SAN Router s TCP ports Role The type of iSCSI device that this device...

Страница 126: ...n the storage name service for this iSCSI device The Port WWN is made up by the SAN Router and is persistent across reboots Node WWN 8 byte FC Node World Wide Name registered in the storage name servi...

Страница 127: ...SAN Router for iSCSI initiators If you want to leverage the LUN Mapping Masking feature use the following procedure Zoning without LUN Mapping Masking 1 Start SANvergence Manager 2 Select the proper...

Страница 128: ...ter Also LUN Mapping Masking feature is applicable only to iSCSI initiators FC initiators recognize the RAID in its native form FC targets can have their LUNs mapped and or masked to an iSCSI initiato...

Страница 129: ...cess and click Add The zone configuration at this point is shown in the Figure 5 9 Figure 5 9 mSAN Configuration Window 4 Right click the FC target in the Router Zones section and launch the LUN Mappi...

Страница 130: ...AN Configuration window as shown in Figure 5 11 on page 5 23 Figure 5 10 LUN Mapping Masking Dialog Box CAUTION Adding a storage device with multiple LUNs to a zone that has initiators exposes all LUN...

Страница 131: ...N Mapping Masking Dialog Box 7 Click Commit to save the changes to flash Now the iSCSI initiator will be able to login to the FC target and recognize the selected LUNs Figure 5 12 on page 5 24 shows t...

Страница 132: ...indow CAUTION Changing the number of LUNs for a zoned target deletes the LUN map and forces the SAN Router to expose all LUNs to any initiators in the zone To avoid this remove the initiators from the...

Страница 133: ...rt in the SAN Router an authentication protocol is negotiated either CHAP or none If the protocol is CHAP the SAN Router sends some random data the challenge to the initiator The initiator returns the...

Страница 134: ...d and username have been configured in the iSCSI initiator 3 The iSCSI initiator does not communicate with the RADIUS server directly The SAN Router acts as a mediator between the iSCSI initiator and...

Страница 135: ...page 5 27 Figure 5 14 RADIUS Server on Management IP Subnet Static Routes NOTE The only way the RADIUS server can access the internal IP network is through a static route within the RADIUS Server This...

Страница 136: ...not in the management port subnet inband address subnet or TCP port subnet then you may need to add a static route to the SAN Router to reach the RADIUS server For more information and procedures on c...

Страница 137: ...S server is contacted 5 Enter the number of retries If authentication does not occur after this number of retries the next RADIUS server is contacted 6 Use the Advanced TCP Configuration dialog box to...

Страница 138: ...Authentication Refer to the documentation of your iSCSI initiator for instructions on setting up the initiator for CHAP authentication Following is a procedure for using the Microsoft iSCSI initiator...

Страница 139: ...e if you are using the freeRADIUS RADIUS server 4 Click OK to close the dialog box 5 Click OK on the Add Target Portal dialog box 6 If devices have been zoned properly refer to Zoning iSCSI Devices on...

Страница 140: ...iSCSI initiator is registering with the name server Open the iSCSI Devices dialog box through the SAN Router s Element Manager by selecting Configuration iSCSI Devices The initiator should be visible...

Страница 141: ...5 Configuring iSCSI Connections 5 33 Configuring iSCSI Authentication Figure 5 19 RADIUS Server Located on the iSCSI Subnet...

Страница 142: ...erver Configuration under the Configuration menu iSCSI submenu Figure 5 20 RADIUS Server Configuration Dialog Box Configuration 3 RADIUS Server Located on the Same Subnet as the Management Port In thi...

Страница 143: ...is through its management port IP address The RADIUS Server requires a static route logically pointing to SAN Router s internal address route add 10 10 10 11 255 255 255 255 172 168 10 25 Use the ping...

Страница 144: ...IUS server is on a subnet that is one hop away from the SAN Router s 10 100 management subnet refer to Figure 5 23 on page 5 37 The RADIUS client on the SAN Router will communicate with the RADIUS ser...

Страница 145: ...RADIUS Server Located One Hop from Management Port Figure 5 24 on page 5 38 shows an example of the associated RADIUS Server Configuration dialog box in the Element Manager Display this dialog box by...

Страница 146: ...illustrates the Add Static Route dialog box in the Element Manager where you add static routes Display the Add Static Route dialog box by selecting the Add button on the Static Routing Configuration d...

Страница 147: ...te TCP Port In this configuration the RADIUS server is on a subnet that is reachable only via a different iSCSI capable port refer to Figure 5 26 on page 5 40 This configuration is not supported Howev...

Страница 148: ...in any combination of the supported configurations For example the primary RADIUS server can be located on iSCSI port s subnet while the secondary RADIUS server can be located on iFCP subnet Use the...

Страница 149: ...r Operation and Connections This chapter provides details on how to monitor SAN Router performance and operation in the network using Element Manager Use the following links to move through the chapte...

Страница 150: ...below is the Device View Figure 6 1 Device View for the SAN Router Port Icons Each port is represented by an icon that shows the port type individual port LED and a colored status border around the i...

Страница 151: ...aning of the port LEDs fan and temperature icon colors in the Device View A single LED by each port indicates port status Table 6 1 Port LED Colors LED Label Color Meaning Port LEDs Green FC R port li...

Страница 152: ...ointer over the port icon and pause The tooltip automatically appears Figure 6 3 Figure 6 4 and Figure 6 5 on the following pages are tooltip examples for an FC port FC R_Port and an iFCP iSCSI port T...

Страница 153: ...6 Monitoring SAN Router Operation and Connections 6 5 Using the Element Manager Tools Figure 6 3 FC Port Tool Tip Figure 6 4 FC R_Port Tool Tip...

Страница 154: ...on Manual Using the Element Manager Tools Figure 6 5 iFCP Tool Tip System Information The System Information panel in the Device View Figure 6 6 displays the operating conditions of the SAN Router as...

Страница 155: ...led Power Supplies monitor the two power supplies If green good DC power is being provided by the respective power supply If a power supply icon border is red the power supply has failed check the pow...

Страница 156: ...dth The green receive or yellow transmit bar represents the percentage of port bandwidth used Environmental Each power supply icon is surrounded by a colored border indicating status Red indicates fai...

Страница 157: ...6 Monitoring SAN Router Operation and Connections 6 9 Using the Element Manager Tools Figure 6 8 System Temperature Tool Tip Figure 6 9 Power Supply Tool Tip...

Страница 158: ...ssage Log Error conditions warnings configuration changes and SAN Router state change information are all displayed in the Message Log Figure 6 11 The Message Log is not persistent and there is no his...

Страница 159: ...Refer to Granting Clipboard Access for Copy and Paste on page 2 12 for information on how to configure Java security to allow copying to the clipboard Clear Entries Deletes all messages in the log Fl...

Страница 160: ...al Support whenever you report a problem The Message Log is contained in Element Manager whereas the System Log is contained in the SAN Router Periodically you should retrieve the System Log to preser...

Страница 161: ...Enter Options box DNS names are not supported p port c count s size host 4 Click Start to execute the command or Stop to abort it Table 6 5 Ping Options for iFCP Capable Ports Item Meaning p port Por...

Страница 162: ...Remote Connection Statistics Sorting and Refreshing Report Data You can sort and refresh all of the reports available through the Element Manager as follows Click any column header to sort the list by...

Страница 163: ...ubsequent polls Resetting the counters does not flush the counters in the SAN Router rather it only re adjusts the displayed values in this instance of Element Manager Table 6 6 Gigabit Ethernet Port...

Страница 164: ...d before and after a common interval The differences in the sampled values are Pkts and Octets respectively and the number of seconds in the interval is Interval These values are used to calculate the...

Страница 165: ...on where any packet exceeds 20 ms The allowed range to detect jabber is between 20 ms and 150 ms The oversize packet total includes the jumbo frame count if the Jumbo Frames feature is enabled Packets...

Страница 166: ...Statistics displayed in the FC Port Statistics dialog box are described in Table 6 7 on page 6 19 Figure 6 15 FC Port Statistics Dialog Box NOTE Port statistic counters such as Frames In and Errors c...

Страница 167: ...ame delimiters delivered C3 Frames Discards Class 3 frames discarded Errors Link Failures Number of link failures detected by this port Loss of Synchronization Number of loss of synchronization detect...

Страница 168: ...l Device Properties The FC Device Properties dialog box appears Figure 6 16 Figure 6 16 FC Device Properties Screen Table 6 8 describes the Fibre Channel Device Properties information Table 6 8 Fibre...

Страница 169: ...r the device is Enabled or Bypassed Device Symbolic Name The Port Symbolic Name of the device Capacity Storage device capacity in megabytes Vendor ID The vendor name registered when the device logged...

Страница 170: ...me in megabytes per second for FC ports and megabits per second for IP There is one graph for each port with two lines on each graph Different colors are used in the FC and IP graphs For IP iSCSI iFCP...

Страница 171: ...n use the arrow keys or mouse to adjust the slide bar to change the poll interval and the number of intervals to be displayed in each graph on the Port Traffic Report 4 Select the ports to be included...

Страница 172: ...Router To display the iFCP port compression report follow these instructions 1 Choose Statistics Info iFCP Compression Rates to display the iFCP Port Compression Report dialog box Figure 6 19 Figure...

Страница 173: ...hes the Compression Ratio of the peer port that is sending traffic to this port provided the peer ports are communicating exclusively between each other Each graph displays two lines The red line repr...

Страница 174: ...ed in each graph on the iFCP Port Compression Report 4 Select the ports to be included in the report 5 Select the number of graphs to be displayed per row 1 to 4 from the drop down list 6 Click Apply...

Страница 175: ...Click the Options button to configure the data refresh rate in seconds Also known as the Forwarding Database for Transparent Bridges this is a table of information about unicast entries for which the...

Страница 176: ...ch the SAN Router has forwarding and or filtering information Port The port number on which the MAC address was learned A value of 0 indicates the MAC address was not learned but that the SAN Router d...

Страница 177: ...mation displayed in the IP Forward Table about the IP addresses learned and or configured for each port Table 6 10 IP Forwarding Item Meaning Destination IP Destination IP address Destination IP Mask...

Страница 178: ...ol Table The ARP Table dialog box Figure 6 23 contains the active mapping of Ethernet MAC addresses to IP addresses for the SAN Router To display this dialog box choose ARP Table from the Statistics I...

Страница 179: ...nt or secondary server the report contains information known to the local SAN Router only The name server table contains an entry for each storage device port and SAN Router port known by the local na...

Страница 180: ...6 6 32 Eclipse 2640 SAN Router Administration and Configuration Manual Viewing Statistics Figure 6 24 Storage Name Server mSNS Report Dialog Box...

Страница 181: ...p port F port FL port R_Port B port or F ether port UnavailableDev Node WWN FC WWN of the associated node as defined in FC GS 2 Node Symbolic Name Symbolic name of the node FC 4 Types FC 4s supported...

Страница 182: ...remote connection All configured and enabled remote connections are included in the legend Disabled connections do not appear Enabled connections that are currently down will appear in the legend but...

Страница 183: ...eout or a Fast Recovery action typically initiated by duplicate ACKs indicating a lost packet Dropped Connections The number of times the connection to the remote SAN Router was lost during the last p...

Страница 184: ...ection Statistics report and when you close Element Manager for this SAN Router and log in later However if you switch the web browser to another web page and back the polling interval and chart optio...

Страница 185: ...gins again When reporting statistics such as the number of bytes received or transmitted the counter can quickly fill if the port is operating at full line rate For a 1 Gbps FC port this counter can w...

Страница 186: ...6 6 38 Eclipse 2640 SAN Router Administration and Configuration Manual Viewing Statistics...

Страница 187: ...backing up and restoring configuration data and retrieving and clearing the system log Use the following links to move through the chapter Section Page Upgrading Firmware E OSi 7 2 Upgrading bootrom...

Страница 188: ...you need to upgrade bootrom and for instructions refer to Upgrading bootrom E OSi on page 7 5 Downloading Firmware You can use the CLI or Element Manager to download and install a new version of the...

Страница 189: ...nter or edit the path and file name on the TFTP server for the new firmware 4 Click Download When you download a new version it is always saved in the inactive location Activating New Firmware To acti...

Страница 190: ...erience problems on the network with the new version use the following procedure 1 Select Firmware Upgrade from the File menu 2 Click the Activate button to display the Activate Boot Location dialog b...

Страница 191: ...match your current E OSI firmware select File Firmware Upgrade The Firmware Upgrade dialog box appears Figure 7 1 on page 7 2 3 Enter or edit the TFTP server IP address where the bootrom bin file is s...

Страница 192: ...Resetting the System Dialog Box Parameter Changed Requiring Reset Inband Address Configuration Configuration System Inband Address The Router s inband address subnet mask address and gateway address A...

Страница 193: ...ialog boxes Reset to Factory defaults This resets the hardware and firmware and changes configuration values to the factory defaults Refer to Factory Default Settings for the SAN Router on page 7 8 fo...

Страница 194: ...Configuration System Inband Address Default Gateway address 0 0 0 0 Configuration System Inband Address SNMP Read only Password public Configuration System SNMP Communities Hosts SNMP Read modify Pas...

Страница 195: ...Ethernet iSCSI iFCP port IP address 0 0 0 0 Configuration Port FC Ethernet iSCSI iFCP port subnet mask 0 0 0 0 Configuration Port FC Ethernet iSCSI iFCP port External router address 0 0 0 0 Configura...

Страница 196: ...ration Port FC Ethernet Advanced Login Retry timeout in seconds Configure 60 Configuration Port FC Ethernet Advanced First Burst Length KB 64 Configuration Port FC Ethernet Advanced Max Burst Length K...

Страница 197: ...Remote Connections Remote Gateway IP Address 0 0 0 0 Configuration iFCP Remote Connections Add Connection State Enabled Configuration iFCP Remote Connections Add Connection timeout 10 Configuration i...

Страница 198: ...ed configuration takes effect only after you reset the SAN Router Back up and restore zone set configurations for the mSAN using the Load Zone Set and Save Zone Set options under File menu in the SANv...

Страница 199: ...k the Backup button Restore To restore the SAN Router configuration from a backup file location follow these instructions 1 Select File Configuration Restore to display the Restore Configuration dialo...

Страница 200: ...to the management workstation follow these instructions 1 Select File System Log Retrieve to display the Retrieve System Log dialog box Figure 7 6 on page 7 14 Figure 7 6 Retrieve the System Log Dial...

Страница 201: ...ystem Log Maintenance 7 15 Retrieving and Clearing the System Log Figure 7 7 Delete the System Log 6 Click OK to empty the System Log Deleting the system log contents avoids saving duplicate data the...

Страница 202: ...7 7 16 Eclipse 2640 SAN Router Administration and Configuration Manual Retrieving and Clearing the System Log...

Страница 203: ...oting This chapter gives the troubleshooting procedures for the Element Manager and the SAN Router Use the following links to move through this chapter Section Page Element Manager Troubleshooting 8 2...

Страница 204: ...console connection to verify the SAN Router s inband address Missing default gateway or static route If the management station is not in the same subnet as the SAN Router s management port or inband...

Страница 205: ...ping again to verify connectivity If the ping succeeds try to independently verify that the SNMP access is working Start SANvergence Manager if it is available If SANvergence Manager fails to connect...

Страница 206: ...ng the connection to the SAN Router Ensure that the workstation for Element Manager meets the requirements described in Workstation Requirements on page 2 5 Re type the password for the appropriate lo...

Страница 207: ...FC R cable You cannot download firmware when the management port has an IP address of 224 x x x or above IP addresses of 224 x x x and above are Class D or Class E addresses that are specifically res...

Страница 208: ...ation iFCP Remote Connections and checking the Status column for the SAN Router in question It should say Up The operating system does not display the attached storage devices Normally there is a prob...

Страница 209: ...ng fabrics with mSANs You don t know whether to set your FC devices to Arbitrated Loop or Point to Point The SAN Router will support either arbitrated loop or point to point Certain host bus adapter d...

Страница 210: ...8 8 8 Eclipse 2640 SAN Router Administration and Configuration Manual SAN Router Troubleshooting...

Страница 211: ...Industries Alliance 2500 Wilson Blvd Arlington VA 22201 Definitions from this text are identified by E IBM Dictionary of Computing ZC20 1699 Definitions from this text are identified by D Information...

Страница 212: ...ke use of any resource of a storage device a system or area such as random access memory RAM or a register access time The amount of time including seek time latency and controller time necessary for...

Страница 213: ...face application 1 The use to which a data processing system is put for example a payroll application an airline reservation application or a network application 2 A collection of software components...

Страница 214: ...alue then becomes the last byte of the address identified for each public L_Port on the loop arbitration Process of selecting one device from a collection of devices that request service simultaneousl...

Страница 215: ...of times per second the signal can change the state of the transmission line or other medium The units of baud are seconds to the negative 1 power Note With Fibre Channel scheme a signal event repres...

Страница 216: ...ge can connect the LAN segments directly by network adapters and software in a single device or can connect network adapters in two devices through software and use of a telecommunication link between...

Страница 217: ...fabric port F_Port Credit represents the maximum number of outstanding frames that can be transmitted by that N_Port or F_Port without causing a buffer overrun condition at the receiver 2 The maximum...

Страница 218: ...d on a hard drive cascade Linking two or more FC switches to form a larger switch or fabric The switched link through fiber cables attached between one or more expansion ports E_Ports See also expansi...

Страница 219: ...server application and data availability command 1 A character string from an external source to a system that represents a request for system action D 2 A request from a terminal to perform an opera...

Страница 220: ...ng connectionless Non dedicated link Typically used to describe a link between nodes which allows the switch to forward Class 2 or Class 3 frames as resources ports allow Contrast this with the dedica...

Страница 221: ...ructure for accepting storing and providing on demand data for multiple users I data center A collection of servers and data storage devices usually in one location administered by an information tech...

Страница 222: ...watt with a logarithmic relationship as the value increases D DC See direct current decibel Abbreviated as dB A standard unit used to express gain or loss of optical power expressed as the ratio of in...

Страница 223: ...en nodes end devices on a switched fabric The director sends data transmissions data frames between nodes in accordance with the address information present in the frame headers of those transmissions...

Страница 224: ...the principal switch If the value has not been allocated to another switch in the fabric it will be granted by the principal switch and will become the requesting switch s active domain ID The active...

Страница 225: ...ly erasable programmable read only memory EFC Enterprise Fabric Connectivity The Fibre Channel protocol infrastructure made up of switches and directors in an enterprise EFC is used to describe produc...

Страница 226: ...that EFCM Lite does not support the Call Home and the automated Zip drive back up feature In addition EFCM Lite requires installation of the remote client application to a remote user workstation from...

Страница 227: ...er system interface SCSI devices enhanced availability feature EAF A backup field replaceable unit backup FRU that is ordered and installed to provide redundancy and reduce disruption in case of failu...

Страница 228: ...D Enterprise Systems Connection Director ESCON Director A device that provides connectivity capability and control for attaching any two links to each other through the ESON channel Specifically any...

Страница 229: ...to form a multiswitch fabric See also bridge port fabric loop port fabric port generic port hub port node loop port node port segmented expansion port explicit fabric login The process by which a nod...

Страница 230: ...abric for physically connecting an arbitrated loop of node loop ports NL_Ports See also bridge port expansion port fabric port generic port hub port node loop port node port segmented expansion port f...

Страница 231: ...rk together to convert a stream of bits at one end of the link to a stream of bits at the other end FC 1 Middle layer of the Fibre Channel physical and signaling interface FC PH standard defining the...

Страница 232: ...ressing conflicts with other fabrics that are using the same domain IDs FC PH See Fibre Channel physical and signaling interface feature key A unique key to enable additional product features This key...

Страница 233: ...gy where ports use arbitration to establish a point to point circuit Data can be transferred in both directions simultaneously achieving a nominal transfer rate between two devices of 200 Mbps Fibre C...

Страница 234: ...nal Standards Institute ANSI standard that provides a common efficient data transport system that supports multiple protocols The architecture integrates both channel and network technologies and prov...

Страница 235: ...d access between F_Ports enforced at the source port The hardware verifies the destination port against the zone defined for the source port firmware Embedded program code that resides and runs on for...

Страница 236: ...ending on the port type to which it connects See also bridge port expansion port fabric loop port fabric port hub port node loop port node port segmented expansion port GHz See gigahertz gigabit Gb A...

Страница 237: ...agnetically hardware Physical equipment director switch or personal computer as opposed to computer programs or software hardware management console The console runs the Hardware Management console ap...

Страница 238: ...hes that handle a data frame from its origination point through it s destination point hop count The number of hops a unit of information traverses in a fabric host The computer that other computers a...

Страница 239: ...A simple protocol that allows world wide web pages to be transferred quickly between web browsers and servers Hz See Hertz I ID See identifier identifier ID 1 One or more characters used to identify...

Страница 240: ...s architecture designed for personal computers PCs that use an Intel 80386 80486 or Pentium microprocessor ISA buses are 32 bits wide and support multiprocessing Infiniband The name applied to the mer...

Страница 241: ...input and output input output controller IOC A functional unit in a data processing system that controls one or more devices or units of peripheral equipment A D I Institute of Electrical and Electro...

Страница 242: ...twork internetworked SAN iSAN An internetworked storage area network iSAN is a collection of one or more fabrics interconnected using one or more SAN routers where typically at least one fabric is in...

Страница 243: ...al processing unit CPU that signifies a process has either completed or could not be completed interswitch link ISL Physical expansion port E_Port connection between two directors in a fabric interswi...

Страница 244: ...ecute JVMs have been developed for many of the mainstream platforms and operating systems JBOD See just a bunch of disks jumper cable Optical cable that provides physical attachment between two device...

Страница 245: ...use on specific IBM machines and licensed to customers under the terms of IBM s customer agreement Microcode can be LIC and licensed as such D light emitting diode LED A semiconductor chip that emits...

Страница 246: ...D See also metropolitan area network metro area storage area network mSAN wide area network logical partition LPAR A processor hardware subset defined to support the operation of a system control prog...

Страница 247: ...her devices and the switch of the presence in the loop by sending LIP sequences and subsequent frames through the loop This process allows linked arbitrated loop devices to perform fabric loop port FL...

Страница 248: ...ort MAN See metropolitan area network managed product Hardware product that can be managed with the EFC Product Manager application McDATA directors and switches are managed products See also device m...

Страница 249: ...e GPM and central memory module CMM cards See also Fibre Channel I O controller metropolitan area network MAN A network capable of high speed communications over distances up to about 100 kilometers S...

Страница 250: ...remote mSANs See also local area network metropolitan area network wide area network multimedia A simultaneous presentation of data in more than one form such as by means of both visual and audio mul...

Страница 251: ...col TCP IP network The network address can be either an IP address in dotted decimal notation composed of four three digit octets in the format xxx xxx xxx xxx or a domain name as administered on a cu...

Страница 252: ...ithin an end device node that participates in a loop containing one or more fabric loop ports FL_Ports or other NL_Ports See also bridge port expansion port fabric loop port fabric port generic port h...

Страница 253: ...ate that it is offline offline state When the switch or director is in the offline state all the installed ports are offline The ports transmit an offline sequence OLS and they cannot accept a login g...

Страница 254: ...data and file services parallel Sysplex support object oriented programming distributed computing environment and open application interfaces D optical cable Single fiber multiple fibers or a fiber b...

Страница 255: ...ts data depend upon the purpose of the panel and may or may not be modified partition A way to logically divide a hard drive so that an operating system treats each partition as a separate hard drive...

Страница 256: ...In a multiswitch fabric the switch that allocates domain IDs to itself and to all other switches in the fabric There is always one principal switch in a fabric If a switch is not connected to any oth...

Страница 257: ...oopback plug protocol 1 Set of semantic and syntactic rules that determines the behavior of functional units in achieving communication 2 In systems network architecture the meanings of and sequencing...

Страница 258: ...m access memory R_A_TOV See resource allocation time out value read only memory ROM An information storage chip with permanent memory Stored information cannot be changed or deleted except under speci...

Страница 259: ...ium that uses magneto optical read write technology and is removable from a computer and used to store and transport data D RFI See radio frequency interference ring topology A logically circular unid...

Страница 260: ...nd an attached fabric The router fabric manager acts a conduit between the SNS in the fabric and the router SNS mSNS and or iSNS router zone set A group of router zones that may or may not have member...

Страница 261: ...box displays if the user attempts to access any pages after the timeout has occurred SANpilot interface window The window for the SANpilot interface The window is divided into two separate panels the...

Страница 262: ...ee small form factor pluggable transceivers shared mode If a director or switch is in shared mode all devices on the loop share the 100MB bandwidth available on the loop In shared mode only one end de...

Страница 263: ...le network management protocol version 1 SNMP v1 The original standard for SNMP is now referred to as SNMP v1 The ES 2500 uses SNMP v1 simple network management protocol version 2 SNMP v2 The second v...

Страница 264: ...al network SRAM See static random access memory state The state of the switch or director Possible values include online offline testing and faulty See offline state online state static random access...

Страница 265: ...usly switchover Changing a backup field replaceable unit FRU to the active state and the active FRU to the backup state switch priority Value configured into each switch in a fabric that determines it...

Страница 266: ...protocol for remote terminal connection over a network connection terabyte TB One thousand 1 000 gigabytes one terabyte of text on paper would consume 42 500 trees At 12 characters per inch 1 TB of d...

Страница 267: ...etwork that conforms to U S Department of Defense standards for network protocol TCP provides reliable communication and control through full duplex connections D transmission control protocol Interne...

Страница 268: ...by the Occupational Safety and Health Administration and authorized to certify products for use in the home and workplace D unicast Communication between a single sender and a single receiver over a n...

Страница 269: ...etwork Contrast with transmission control protocol Internet protocol V VAC See volts alternating current VDC See volts direct current virtual machine VM 1 A virtual data processing system that appears...

Страница 270: ...system in which volts exist VAC means that the volts exist in a circuit where the electricity can travel in either direction Contrast with volts direct current See volt volts direct current VDC A ter...

Страница 271: ...Synonym for loopback plug wrap test A test that checks attachment or control unit circuitry without checking the mechanism itself by returning the output of the mechanism as input A wrap test can tran...

Страница 272: ...re more for usability readability for the user Zone IDs come into play whenever a device needs to be shared between mSANs over an iFCP link zone member Specification of a device to be included in a zo...

Страница 273: ...tus 4 19 Connection timeout 4 19 Consistency report 6 14 Conventions used in manual ii xv Current domain ID 3 8 D Default settings 7 8 Default zone behavior 2 35 E E_Port compatability 3 14 Element Ma...

Страница 274: ...n 5 25 Zoning 5 19 iSCSI port numbers 2 21 L LEDs Element Manager device view 6 7 Local port IP address 4 19 LUN mapping and masking 5 20 M MAC forward table 6 26 Management port address 2 20 CLI proc...

Страница 275: ...6 Save configuration to flash memory 2 10 Scalability metrics 1 5 SNMP Configure 2 33 Passwords 2 30 Traps 2 31 SNMP communities 2 30 Storage name server Definition 2 35 Subnet mask 2 10 2 29 System...

Страница 276: ...Eclipse 2640 SAN Router Administration and Configuration Manual i 4 Index...

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