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Zoning Concepts

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Zoning Version 3.1.x/4.1.x User Guide

Merging Rules

■

If the local and adjacent zone database configurations are the same, they will
remain unchanged after the merge.

■

If there is an effective configuration between two switches, the zone
configuration in effect must be the same for the fabrics to merge.

■

If a zoning object has the same name in both the local and adjacent defined
configurations, the object types and member lists must also be the same.
When comparing member lists, the content and order of the members are
important.

■

If a zoning object appears in an adjacent defined configuration, but not in the
local defined configuration, the zoning object is added to the local defined
configuration. The modified zone database must be small enough to fit in the
flash area allotted for the zone database.

■

If a local defined configuration is modified because of a merge, the new zone
database is propagated to other switches within the merge request.

Merging Two Fabrics

The simplest scenario for merging two fabrics is when both fabrics have identical
zones and the same configuration enabled, the two fabrics will join to make one
larger fabric. The same zone configuration will be in effect across this newly
created fabric.

If the two fabrics have different zone configurations, then the two sets of
information will be merged, or the ISL between the switches will be segmented if
the two fabrics cannot join. Refer to

Table 3

on page 40 for more information.

Merging with a V4.1 Fabric

If the user has a StorageWorks Core switch-based fabric, or other switches
running Fabric OS V4.1, the firmware can operate in the same fabric with
StorageWorks SAN switches running Fabric OS V3.0.1a or later firmware.
Switches running Fabric OS V4.1 firmware can operate in the same fabric with all
StorageWorks 1 Gb SAN switches running V2.6 or later. However, HP
recommends that each switch in the SAN run the latest supported firmware for
that switch.

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Содержание A7340A - Surestore FC 1Gb/2Gb Switch 16B

Страница 1: ...n 3 1 x 4 1 x Product Version 3 1 x 4 1 x Third Edition June 2003 Part Number AA RS26C TE This user guide provides an overview of zoning instructions for activating zoning and information about configuring and using zoning and QuickLoop zones ...

Страница 2: ...ument is subject to change without notice BROCADE the Brocade B weave logo Brocade the Intelligent Platform for Networking Storage SilkWorm and SilkWorm Express are trademarks or registered trademarks of Brocade Communications Systems Inc or its subsidiaries in the United States and or in other countries Windows NT is a U S registered trademark of Microsoft Corporation Hewlett Packard Company shal...

Страница 3: ...11 HP Authorized Reseller 11 1 Introducing Zoning 13 Overview 14 Customizing Environments 14 Optimizing Resources 14 License Activation 15 License Activation Using Telnet 16 License Activation Using Web Tools 17 2 Zoning Concepts 19 About Zoning 20 Guidelines to Setting Up Zoning 21 Zone Definitions 22 Zone Objects 22 Selecting Ports on the Core Switch 2 64 23 Zone Objects and Aliases 24 Zone Obje...

Страница 4: ... Review The Enabled Configuration 34 Modifying Configurations 36 Before Merging Zones 36 Adding a New Switch 36 Adding a New Fabric 37 Merging and Segmentation 37 Merging Rules 38 Merging Two Fabrics 38 Merging with a V4 1 Fabric 38 Merge Conflicts 39 Splitting a Fabric 39 Zone Merging Scenarios 40 Resolving Zone Conflicts 42 Rules of Zoning Architecture 43 3 Using QuickLoop Zones 45 QuickLoop Zon...

Страница 5: ... Zoning Philosophies 58 No Fabric Zoning 58 Zoning by Application 58 Zoning by Operating System 58 Port allocation 59 Single HBA 59 The Effect of Zoning on RSCN Delivery 60 Implementing Zoning 62 Naming Convention 62 Implementing Zoning on an Existing Fabric 63 Deviations from Single HBA Zoning 64 Hardware Enforced Zoning in an HP Fabric 65 Fabrics Composed of Only StorageWorks 1 Gb SAN Switch Mod...

Страница 6: ...oning to Administer Security 69 Glossary 71 Index 103 Figures 1 License activation using telnet 16 2 Fabric with three zones 20 3 PortZoneShow output 29 Tables 1 Document Conventions 9 2 Area and Port Mappings 23 3 Zone Merging Scenarios 40 4 RSCN Delivery 61 ...

Страница 7: ...t this Guide This user guide provides information to help you Understand Zoning Install Zoning Configure and use Zoning and QuickLoop zones Contact technical support for additional assistance About this Guide topics include Overview page 8 Conventions page 9 Getting Help page 11 ...

Страница 8: ...es Fabric Operating System FOS V3 1 x or later Related Documentation For a list of related documents included with this product see the Related Documents section of the Release Notes that came with your switch For the latest information documentation and firmware releases please visit the following StorageWorks website http www hp com country us eng prodserv storage html For information about Fibr...

Страница 9: ...result in bodily harm or death Caution Text set off in this manner indicates that failure to follow directions could result in damage to equipment or data Table 1 Document Conventions Element Convention Cross reference links Blue text Figure 1 Key and field names menu items buttons and dialog box titles Bold File names application names and text emphasis Italics User input command and directory na...

Страница 10: ...About this Guide 10 Zoning Version 3 1 x 4 1 x User Guide Note Text set off in this manner presents commentary sidelights or interesting points of information ...

Страница 11: ...ation available before calling Technical support registration number if applicable Product serial numbers Product model names and numbers Applicable error messages Operating system type and revision level Detailed specific questions HP Storage Website The HP website has the latest information on this product as well as the latest drivers Access storage at http www hp com country us eng prodserv st...

Страница 12: ...About this Guide 12 Zoning Version 3 1 x 4 1 x User Guide ...

Страница 13: ...13 Zoning Version 3 1 x 4 1 x User Guide 1 Introducing Zoning This chapter provides the following information Overview page 14 License Activation page 15 ...

Страница 14: ...re than one zone Because zone members can access only other members of the same zone a device not included in a zone is not available to members of that zone Zoning can be used for customizing environments and optimizing resources Customizing Environments Use zones to create logical subsets of the fabric to accommodate closed user groups or to create functional areas within the fabric For example ...

Страница 15: ... switch as shown in the example below If the necessary license is not included in the list continue with License Activation Using Telnet on page 16 or License Activation Using Web Tools on page 17 1 Log onto the switch by telnet using an account that has administrative privileges 2 Enter the licenseshow command on the telnet command line A list of all activated licenses on the switch will be gener...

Страница 16: ...red exactly as given licenseadd key switch admin licenseshow SdcReRcbSbjedSfa Web license SdcReRcbSbjedSfb Zoning license SdcReRcbSbjedSd QuickLoop license SdcReRcbSbjedSfe Fabric license SdcReRcbSbjedSff Remote Switch license SdcReRcbSbjedSfg Remote Fabric license SdcReRcbSbjedSfh Extended Fabric license SdcReRcbSbjedSfj Entry Fabric license SdcReRcbSbVedSfM Fabric Watch license SdcReRcbSbXedSfO ...

Страница 17: ...ditional licenses 1 Launch a Web browser enter the switch name or IP address in the Location Address section of the browser and press Enter Web Tools launches displaying the Fabric View 2 Click the Admin button on the relevant switch panel The logon window displays 3 Enter a logon name and password with administrative privileges and press Enter The Administration View displays Choose the License A...

Страница 18: ...Introducing Zoning 18 Zoning Version 3 1 x 4 1 x User Guide ...

Страница 19: ...pter provides the following information About Zoning page 20 Guidelines to Setting Up Zoning page 21 Zone Definitions page 22 Zone Management page 26 Zoning Schemes page 28 Implementing Zoning page 30 Zone Merging Scenarios page 40 Rules of Zoning Architecture page 43 ...

Страница 20: ...e by other devices in the fabric Zone objects are grouped into zones and zones are grouped in a zone configuration Zones can overlap that is a zone object can belong to more than one zone and a fabric can have multiple zones A switch can have any number of zone configurations resident however only one configuration can be enabled at a time Figure 2 illustrates three zones with some overlap It also...

Страница 21: ... user will need to account for this Refer to Rules of Zoning Architecture on page 43 Consider turning off unused ports that have nothing connected to them within zoned fabrics This is a decision that will affect the security of the fabric If Secure Fabric OS is utilized a policy to lock down ports can be implemented For a fabrics with multiple zones enabled within it it is best to configure one zo...

Страница 22: ...ame Port Worldwide name Zone objects identified by port number or the area number are specified as a pair of decimal numbers d area where d is the Domain ID of the switch and area is the port number or area number on that switch See Table 2 on page 23 For example 3 13 specifies port 13 on switch number 3 Another example 3 46 specifies port 14 on slot number 3 or area 46 When the physical port numb...

Страница 23: ... of 10 slots Slot numbers 5 and 6 are control processor cards and slots 1 through 4 and 7 through 10 are switch cards Each switch card contains 16 ports counted from the bottom 0 to 15 A particular port is represented by both slot number 1 through 10 and port number 0 through 15 Zoning commands for Fabric OS V4 1 require specifying a port using an area number method where each port on a particular...

Страница 24: ...implify repetitive entry of zone objects such as port numbers or World Wide Names For example the name Eng could be used as an alias for 10 00 00 80 33 3f aa 11 An alias is a name assigned to a device or group of devices By creating an alias you can assign a familiar name to a device or you can group multiple devices into a single name This can simplify cumbersome entries and allow an intuitive na...

Страница 25: ...ations Defined Configuration The complete set of all zone objects that have been defined in the fabric Effective Configuration A single zone configuration that is currently in effect The effective configuration is built when an administrator enables a specified zone configuration This configuration is compiled by checking for undefined zone names zone alias names or other issues Saved Configuratio...

Страница 26: ...d to the fabric until the transaction is closed A transaction is aborted when another switch closes its transaction or by issuing the command cfgTransAbort When a transaction is closed all new and existing zoning information is applied to the fabric and saved to flash memory Commands to Open a Transaction The following commands can be issued to open a transaction aliAdd Add a member to a zone alia...

Страница 27: ... qloopDelete Delete a qloop qloopRemove Remove a member from a configuration zoneAdd Add a member to a zone zoneCreate Create a zone zoneDelete Delete a zone zoneRemove Remove a member from a zone cfgDisable Disable a zone configuration cfgEnable Enable a zone configuration cfgSave Save zone configurations in flash aliShow Print aliases cfgShow Print configuration information zoneShow Print zone c...

Страница 28: ...er Each ASIC maintains a list of source port IDs that have permission to access any of the ports on that ASIC Software enforced zoning is exclusively enforced through selective information presented to end nodes through the fabric Simple Name Server SNS Switch Port Level Zoning A zone containing members specified by either domain ID with port number or area number or aliases of domain area For inf...

Страница 29: ... devices can freely access other devices in the fabric When zoning is enabled zoning is enforced throughout the fabric and devices can communicate only within their zones To discern if a zone is hardware enforced use either the portZoneShow command or portcamshow command as shown in Figure 3 Figure 3 PortZoneShow output ...

Страница 30: ...e zoneCreate zonename ports 2 Create a zone configuration cfgCreate cfgname zonename 3 Enable the zone configuration cfgEnable cfgname The following is an example of the above procedure zonecreate zone_1 1 0 1 2 cfgcreate zonecfg_1 zone_1 cfgenable zonecfg_1 Detailed Zone Configuration Procedures To implement zoning perform these procedures as described in the sections below 1 Review current confi...

Страница 31: ...verB Fabric_StorageB zone ql_zone1 Private_ServerA Private_StorageA zone ql_zone2 Private ServerB Private StorageB alias Fabric_ServerA 50 06 0b 00 00 06 9a d6 alias Fabric_ServerB 50 06 0b 00 00 06 ad 10 alias Fabric_StorageA 50 06 04 82 bc 01 0a 1b alias Fabric_StorageB 50 06 04 82 bc 01 9a 1c alias Private_ServerA 1 3 alias Private_ServerB 1 4 alias Private_StorageA 2 2 alias Private_StorageB 2...

Страница 32: ...le test180_Jr admin aliCreate alias by port level 7 5 7 29 Use the aliCreate command to create an alias for a RAID with a known WWN as shown in this example test180_Jr admin aliCreate RAID_1_NodeName 50 06 0b 00 00 06 9a d6 Define a Zone Specify the list of zone objects to be included and assign a unique zone name the zone name must be a unique alpha numeric string beginning with an alpha characte...

Страница 33: ...t the same name as Configuration1 Use the cfgCreate command to create your zone configuration test180_Jr admin cfgCreate cfg1 fabric_zone1 fabric_zone2 Analyze the Zone Configuration After creating and saving a zone configuration HP recommends analyzing the zone configuration Doing this will save time and potential issues The Zoning Configuration Analyze screen displays a summary of the saved conf...

Страница 34: ... zoning is disabled it remains disabled if an existing configuration is enabled it remains enabled 3 Zone members are loaded 4 If the steps above were successful all switches in the fabric are loaded with the zoning information 5 RSCNs are generated and sent to all devices within the zone Review The Enabled Configuration To review the enabled zone configuration use the cfgShow command test180_Jr a...

Страница 35: ...e_ServerB 1 4 alias Private_StorageA 2 2 alias Private_StorageB 2 1 Effective configuration cfg cfg1 zone fabric_zone1 50 06 0b 00 00 06 9a d6 50 06 04 82 bc 01 9a 1b zone fabric_zone2 50 06 0b 00 00 06 ad 10 50 06 04 82 bc 01 9a 1c zone ql_zone1 1 3 2 2 zone ql_zone2 1 4 2 1 test180_Jr admin END ...

Страница 36: ...ting mode All switches must be in the native operating mode HP Secure Fabric OS If any one switch has HP Secure Fabric OS enabled all switches in the fabric must have HP Secure Fabric OS Refer to the HP StorageWorks Secure Fabric OS Version 1 0 User Guide for more information Adding a New Switch When a new switch is added to the fabric it automatically takes on the zone configuration information f...

Страница 37: ...mmand It is stored in flash by the cfgSave command This database is a replicated database which means that all switches in the fabric will have a copy of this database When a change is made to the defined configuration the switch where the changes were made must close its transaction for the change to be propagated throughout the fabric The second database used with zoning is the N_Port login data...

Страница 38: ...f a merge the new zone database is propagated to other switches within the merge request Merging Two Fabrics The simplest scenario for merging two fabrics is when both fabrics have identical zones and the same configuration enabled the two fabrics will join to make one larger fabric The same zone configuration will be in effect across this newly created fabric If the two fabrics have different zon...

Страница 39: ...the configuration are the same If zoneset members between two switches have the same name defined in the configuration make sure zoneset members listed are in the same order Splitting a Fabric If the connections between two fabrics are no longer available the fabric will segment into two separate fabrics Each new fabric will retain the same zone configuration If the connections between two fabrics...

Страница 40: ...A has a defined and enabled configuration Switch B has a defined configuration but no effective configuration defined cfg1 zone1 ali1 ali2 effective cfg1 defined cfg1 zone1 ali1 ali2 effective none Configuration from Switch A to propagate throughout the fabric Switch A and Switch B have the same defined configuration Neither have an enabled configuration defined cfg1 zone1 ali1 ali2 effective none...

Страница 41: ...osite of the two defined cfg1 zone1 ali1 ali2 cfg2 zone2 ali3 ali4 effective none Switch A and Switch B have different defined configurations Switch B has an enabled configuration defined cfg1 zone2 ali3 ali4 effective none defined cfg1 zone1 ali1 ali2 effective cfg1 Clean merge The new cfg will be a composite of the two with cfg1 as the effective cfg Effective cfg mismatch defined cfg1 zone1 ali1...

Страница 42: ...1 ali1 ali2 defined cfg2 zone1 ali1 ali2 effective cfg2 zone1 ali1 ali2 Fabric segments due to Zone Conflictcfg mismatch Same content different zone name defined cfg1 zone1 ali1 ali2 effective irrelevant defined cfg1 zone2 ali1 ali2 effective irrelevant Fabric segments due to Zone Conflict content mismatch Same content different alias name defined cfg1 ali1 A B effective irrelevant defined cfg1 al...

Страница 43: ...hen that user will only be able to do WWN zoning Other types of zoning including QuickLoop zoning will not be supported Rule 5 Evaluate whether the fabric will have QuickLoop Fabric Assist QLFA or QuickLoop QL in it If the user is running HP Fabric OS V4 1 then there are a couple things to consider before creating and setting up QLFA zones QuickLoop Zoning QuickLoop QuickLoop zones cannot run on s...

Страница 44: ...re a normal part of a functioning SAN the pause in I O may not be acceptable For these reasons it is recommended to do zone changes only if the resulting behavior is known and acceptable Changing HBA drivers can rectify the situation Rule 8 After changing or enabling a zone configuration the user should confirm that nodes and storage are able to see and access one another Depending on the platform...

Страница 45: ...fabric The QuickLoop and zoning combination allow a private host to fully participate in a Storage Area Network SAN By partitioning selected devices within a QuickLoop into a QuickLoop zone you can enhance management of a Fibre Channel Arbitrated Loop FC AL in a legacy environment Note Refer to the HP StorageWorks QuickLoop Fabric Assist Version 3 1 x User Guide for detailed information about HP Q...

Страница 46: ...ickLoop zone can contain no more than 125 devices Note Each QuickLoop port uses one AL_PA Fabric zones and QuickLoop zones are independent of each other Both types of zones can co exist in the same zone configuration and QuickLoop devices can be included within a fabric zone configuration But while devices within a QuickLoop can be seen by a public host devices within each QuickLoop are only visib...

Страница 47: ...devices from disruption by unrelated devices during a critical process for example during a tape backup session In a QuickLoop with zoning enabled transmission of the loop initialization primitive LIP signal and loop initialization are controlled by the switch The LIP is transmitted only to looplets within the affected zone Other looplets on the QuickLoop are not affected In this way unwanted disr...

Страница 48: ...p QuickLoop zones can overlap looplets but they must be confined to a single QuickLoop QuickLoop zones are hardware enforced but zones within a single looplet are not enforceable therefore it is recommended that you do not partition devices within a looplet into different zones To define a QuickLoop zone first enable and create the necessary QuickLoops Then specify the list of members to be includ...

Страница 49: ...ation of looplet and AL_PA Example Zonecreate QLZoneName 0 2 0 3 qloop1 ca cb e1 e2 Define a QuickLoop Zone Configuration To define a QuickLoop zone configuration assign a zone configuration name and specify the QuickLoop zones to be included by zone name The QuickLoop names of the QuickLoop zones must also be included in the zone configuration An example of a QuickLoop zone configuration is cfgna...

Страница 50: ...o public private targets located anywhere within the fabric if no zoning exists Private hosts and targets are put into a single Fabric Assist zone and are identified either by domain and port number or by WWN Each Fabric Assist zone can have only one private host The user will need QuickLoop and Zoning licenses to use these features ...

Страница 51: ...switch Note A fazone private host must be on a loop by itself Sharing a loop with other nodes will cause the fazone to fail Fabric Assist Operation When cfg is enabled AL_PAs are created for all zoned targets that are online on the private host s loop The private host s loop is re LIPed so that it may see any added AL_PAs As additional targets join the fabric if they are within the fazone they wil...

Страница 52: ...s 52 Zoning Version 3 1 x 4 1 x User Guide Fabric Assist Debugging The FaDebugShow command can help troubleshoot FA issues by displaying internal Fabric Assist tables FaDebugShow Displays the internal Fabric Assist tables ...

Страница 53: ...formation Storage Area Networks page 54 Zoning page 55 Zone Management page 56 Zoning Implementations page 57 Fabric Based Zoning Philosophies page 58 The Effect of Zoning on RSCN Delivery page 60 Implementing Zoning page 62 Deviations from Single HBA Zoning page 64 Hardware Enforced Zoning in an HP Fabric page 65 ...

Страница 54: ...must perform a login process During this process the device will register with the nameserver The nameserver records information about the device that is protocols supported World Wide Name WWN network address supported class of service for example When an initiator accesses the network it can query the nameserver for all attached devices and their capabilities Any initiator can query probe the fa...

Страница 55: ...evices for specific operational capabilities Devices that are not part of the zone are not returned as accessible devices It is important to note that this process does not prohibit access to the device If the initiator has prior knowledge of the device it can access the device The nameserver does not control access to devices on the fabric Dependable zoning operation depends on the cooperation of...

Страница 56: ...ne or more zone names are placed into a zone configuration One or more configurations are defined Then one and only one configuration is made the effective configuration for the fabric The number of aliases zones and defined configurations is limited only by the memory available in the HP switch It is important to note that zone configuration is managed on a fabric basis Zoning configuration data ...

Страница 57: ... Zoning This form of zoning is usually referred to as LUN masking Its basic function is to limit access to the LUNs on the storage port to specific WWN of the server HBA This form of zoning is needed in most SANs It functions during the probe portion of the SCSI initialization The server will probe the storage port for a list of available LUNs and their properties The storage system will compare t...

Страница 58: ...availability is by application not by server such as in clusters This method will most likely require zoning multiple operating systems into the same zones Some operating systems have issues co existing in the same zone with other operating systems This method of zoning creates the possibility that a minor server in the application suite potentially has the ability to disrupt a major server such a...

Страница 59: ...ive team could not overload any one storage port by associating too many servers with it Single HBA This method of zoning most closely re creates the original SCSI bus Each zone created has only one HBA initiator in the zone Then each of the target devices that the initiator should access is added to the zone Typically a zone would be created for the HBA and the disk storage ports would be added I...

Страница 60: ...rt time For instance if a new initiator joins the fabric there is little purpose in notifying all the other initiators of the change Initiators do not typically communicate with each other An equivalent situation exists with targets As targets generally do not communicate with each other they have little use in being notified of the addition or removal of another target Once zoning is implemented ...

Страница 61: ...N No RSCN Device power up Device RSCN to zoned devices only Aggregated1 RSCN to zoned devices only Aggregated RSCN to zoned devices only Aggregated RSCN to affected zoned devices only Device shutdown Device RSCN to zoned devices only Aggregated RSCN to zoned devices only Aggregated RSCN to zoned devices only Aggregated RSCN to affected zoned devices only Zone change Fabric RSCN to all devices Fabr...

Страница 62: ... device type is SRV for servers STO for storage TPE for tape VRA for virtualization appliance The device identifier can be the host name for the server the serial number or frame identifier for the storage The port location should allow the administrator to physically find the device port where the fiber is attached A suggestion would be the PCI slot on a server the fiber port on the storage frame...

Страница 63: ...ng is already implemented eliminates the first step of getting a zone and configuration created The next step of creating aliases and zones and then adding them to the existing configuration is the same It is acceptable to have overlapping zones In fact it would be expected that the single HBA zones overlap one or more of the existing zones Once the single HBA zones are in place then the previous ...

Страница 64: ...viate from the single HBA zoning Such cases include clustered systems SAN Management appliances and when initiators must communicate with each other because another protocol like IP is being utilized When this need arises proper consideration of all ramifications of the deviation must be understood Testing in a non production environment is strongly recommended ...

Страница 65: ...er zone basis The exact methodology varies on different switch models The use of hardware enforcement is decided by the Fabric OS whenever the fabric membership or zone configuration changes A few definitions are in order before proceeding with this discussion Domain Port zone All members of this zone are specified with Domain Port pairs only Area values may be used when zoning on a StorageWorks C...

Страница 66: ... Best Practices for Hardware Zone Enforcement When a site policy has been established requiring hardware enforcement it certainly is desired that the hardware enforcement always occur From the preceding paragraphs it should be clear that there are cases when determining the applicability of hardware enforcement can be difficult Three basic cases have simple rules for assuring that hardware enforce...

Страница 67: ... ports on the Quad share these SID CAM entries When these SID CAM entries are exceeded then the hardware zoning reverts to SOFT zoning For example a port has taken up 63 SID CAM entries as it is zoned with 63 devices Adding two more devices to this zone will cause this port to revert to soft zoning Likewise there are 512 DID CAM Destination ID Content Accessible Memory entries per quad ...

Страница 68: ...Zoning Concepts and Guidelines 68 Zoning Version 3 1 x 4 1 x User Guide ...

Страница 69: ...e primary FCS switch When two secure fabrics join the traditional zoning merge does not occur Instead a zoning database is downloaded from the primary FCS switch of the merged secure fabric When E_ports are active between two switches the name of the FCS server and a zoning policy set version identifier are exchanged between the switches If the views of the two secure fabrics are the same the fabr...

Страница 70: ...Using Zoning to Administer Security 70 Zoning Version 3 1 x 4 1 x User Guide ...

Страница 71: ...ific switch port or set of ports preventing a port in another physical location from assuming the identity of a real WWN May also refer to a list of the Read Write access of a particular community string See also device connection controls Account Level Switches Refers to switches that have four login accounts into the operating system in descending order root factory admin and user See also root ...

Страница 72: ... group management ANSI American National Standards Institute The governing body for Fibre Channel standards in the U S A API Application Programming Interface Defined protocol that allows applications to interface with a set of services Arbitrated Loop A shared 100 or 200 MBps Fibre Channel transport structured as a loop Can support up to 126 devices and one fabric attachment See also topology Arb...

Страница 73: ...ch The switch or switches assigned as backup in case the primary FCS switch fails See also FCS switch primary FCS switch Bandwidth The total transmission capacity of a cable link or system Usually measured in bps bits per second May also refer to the range of transmission frequencies available to a network See also throughput BB_Credit Buffer to buffer credit The number of frames that can be trans...

Страница 74: ...ee also BIST CMBISR BIST Built In Self Test The technique of designing circuits with additional logic which can be used to test proper operation of the primary functional logic See also BISR CMBISR Bit Synchronization See BER Blade See 16 port card Blind mate Connector A two way connector used in some switches to provide a connection between the motherboard and the power supply Block As applies to...

Страница 75: ...mum of seven interswitch links no path longer than eight switches See also fabric ISL Chassis The metal frame in which the switch and switch components are mounted Circuit An established communication path between two ports Consists of two virtual circuits capable of transmitting in opposite directions See also link Class 1 Service that provides a dedicated connection between two ports also called...

Страница 76: ...communicating on the loop to close communication to an other L_Port CMBISR Central Memory Built In Self Repair Test and repair bad cells in the central memory If a fail is reported inform Tech Support and replace the board See also BIST BISR Comma A unique pattern either 1100000 or 0011111 used in 8b 10b encoding to specify character alignment within a data stream See also K28 5 Community SNMP A r...

Страница 77: ...pient Connection Recipient A port that has received a Class 1 dedicated connection request and transmitted a response to the originator Control Panel Refers to the left side panel of Web Tools which accesses fabric wide functions such as Zoning and Events Core Switch A switch whose main task is to interconnect other switches See also SAN switch CP Card Control Processor Card The central processing...

Страница 78: ...t of data words See also frame ordered set transmission word DB 9 connector A 9 pin version of the RS 232C port interface May be either the male of female interface See also RS 232 port dBm Logarithmic unit of power used in electronics Indicates signal strength in decibels above the reference level which is 1 milliwatt for dBm An increase of 10 dBm or represents a 10 fold increase in power DCE por...

Страница 79: ...and 239 that identifies the switch to the fabric and is used in routing frames Usually automatically assigned by the switch but can be manually assigned DTE port A data terminal equipment port capable of interfacing to a transmission circuit through a connection to a DCE data communications equipment port DTE devices with an RS 232 or EIA 232 port interface transmit on pin 3 and receive on pin 2 i...

Страница 80: ...ra Long Wavelength Laser light with a periodic length greater than 1300 nm e g 1420 or 1550 ELWL lasers are used to transmit Fibre Channel data over distances greater than 10 Km Also known as XLWL Enabled Zone Configuration The currently enabled zone configuration Only one configuration can be enabled at a time See also defined zone configuration zone configuration End to end Flow Control Governs ...

Страница 81: ...d devices May also be referred to as a switched fabric See also topology SAN cascade Fabric Access An HP product that consists of a set of APIs that allow third party applications to interface with Fabric OS Fabric Access allows the application to control the fabric directly for functions such as discovery access zoning management performance and switch control Consists of a host based library tha...

Страница 82: ...onitoring and configuration of fabric and switch elements Allows the SAN manager to monitor key fabric and switch elements making it easy to quickly identify and escalate potential problems It monitors each element for out of boundary values or counters and provides notification when defined boundaries are exceeded The SAN manager can configure which elements such as error status and performance c...

Страница 83: ...on a private loop FCS switch Fabric configuration server switch One or more designated HP switches that store and manage the configuration and security parameters for all switches in the fabric FCS switches are designated by WWN and the list of designated switches is communicated fabric wide See also backup FCS switch primary FCS switch FC SW 2 The second generation of the Fibre Channel Switch Fab...

Страница 84: ...ogin The process by which an N_Port determines whether a fabric is present and if so exchanges service parameters with it See also PLOGI Frame The Fibre Channel structure used to transmit data between ports Consists of a start of frame delimiter header any optional headers the data payload a cyclic redundancy check CRC and an end of frame delimiter There are two types of frames Link control frames...

Страница 85: ...otocol for all fabric services transparent to the fabric type or topology See also FS Full Fabric The HP license that allows multiple E_Ports on a switch making it possible to create multiple ISL links Full duplex A mode of communication that allows the same port to simultaneously transmit and receive frames See also half duplex Fx_Port A fabric port that can operate as either an F_Port or FL_Port...

Страница 86: ... initialization Hardware Translative Mode A method for achieving address translation The following two hardware translative modes are available to a QuickLoop enabled switch Standard Translative Mode Allows public devices to communicate with private devices that are directly connected to the fabric QuickLoop Mode Allows initiator devices to communicate with private or public devices that are not i...

Страница 87: ...efines a new channel based switched fabric technology for server to server and server to I O interconnection that is expected to improve scalability and performance over existing PCI Bus technologies Idle Continuous transmission of an ordered set over a Fibre Channel link when no data is being transmitted to keep the link active and maintain bit byte and word synchronization InfiniBand See IBTA In...

Страница 88: ...rt See also Master Port IU Information Unit A set of information as defined by either upper level process protocol definition or upper level protocol mapping JBOD Just a Bunch Of Disks Indicates a number of disks connected in a single chassis to one or more controllers See also RAID K28 5 A special 10 bit character used to indicate the beginning of a transmission word that performs Fibre Channel c...

Страница 89: ...d on HP switches to indicate the status of various switch elements Link Services A protocol for link related actions Link As applies to Fibre Channel a physical connection between two ports consisting of both transmit and receive fibers See also Circuit LIP Loop Initialization Primitive The signal used to begin initialization in a loop Indicates either loop failure or resetting of a node LIS_HOLD_...

Страница 90: ...p Port State Machine The logical entity that performs arbitrated loop protocols and defines the behavior of L_Ports when they require access to an arbitrated loop LWL Long Wavelength A type of fiber optic cabling that is based on 1300 mm lasers and supports link speeds of 1 0625 Gbps May also refer to the type of GBIC or SFP See also SWL Master Port As relates to trunking the port that determines ...

Страница 91: ...broadcast unicast Multimode A fiber optic cabling specification that allows up to 500 meters between devices for 1 Gb or 300 meters between devices for 2 Gb N_Port Node Port A port on a node that can connect to a Fibre Channel port or to another N_Port in a point to point connection See also NL_Port Nx_Port NAA Network Address Authority An identifier that indicates the format of a network address ...

Страница 92: ...end frames but can retransmit any received transmissions This mode is entered if there are more than 127 devices in a loop and an AL_PA cannot be acquired See also L_Port Participating Mode Nx_Port A node port that can operate as either an N_Port or NL_Port Open Originator The L_Port that wins arbitration in an arbitrated loop and sends an OPN ordered set to the destination port then enters the Op...

Страница 93: ...can arbitrate send frames and retransmit received transmissions See also L_Port Non participating Mode Path Selection The selection of a transmission path through the fabric HP StorageWorks switches use the FSPF protocol Performance Monitor Comprehensive HP tool for monitoring the performance of networked storage resources Performance Monitoring An HP product that provides error and performance in...

Страница 94: ...ed during login and port discovery POST Power On Self Test A series of tests run by a switch after it is turned on Primary FCS Switch Primary fabric configuration server switch The switch that actively manages the configuration and security parameters for all switches in the fabric See also backup FCS switch FCS switch Private Device A device that supports arbitrated loop protocol and can interpre...

Страница 95: ...o refer to the arbitrated loop created using this software A QuickLoop can contain a number of devices or looplets all devices in the same QuickLoop share a single AL_PA space A means of allowing private hosts to communicate with private targets across a switched fabric The QuickLoop Fabric Assist feature also allows Private hosts to communicate with public targets across a switched fabric Private...

Страница 96: ...icing entity See also service rate RLS Probing Read link status of the AL_PAs Root Account A login used for debugging purposes by HP engineers and is not intended for customer use See also account level switches Route As applies to a fabric the communication path between two switches May also apply to the specific path taken by an individual frame from source to destination See also FSPF Routing T...

Страница 97: ...o the fabric See also core switch SCSI Small Computer Systems Interface A parallel bus architecture and protocol for transmitting large data blocks to a distance of 15 25 meters SDRAM Synchronous Dynamic Random Access Memory The main memory for the switch Used for volatile storage during switch operation See also flash Sequence A group of related frames transmitted in the same direction between tw...

Страница 98: ...ce Initiative SNMP Simple Network Management Protocol An internet management protocol that uses either IP for network level functions and UDP for transport level functions or TCP IP for both Can be made available over other protocols such as UDP IP because it does not rely on the underlying communication protocols See also Community SNMP SNMPv1 The original SNMP now labeled v1 SNS Simple Name Serv...

Страница 99: ...erial port on the CP Card of the StorageWorks Core switch This port sends switch information messages and can receive commands Can be used to connect the CP Card to a computer terminal Has an RS 232 connector wired as a DTE device and can be connected by serial cable to a DCE device The connector pins two and three are swapped so that a straight through cable can be used to connect to a terminal T...

Страница 100: ...p of four transmission characters See also data word Trap SNMP The message sent by an SNMP agent to inform the SNMP management station of a critical error See also SNMP Trunking See ISL Trunking Tunneling A technique for enabling two networks to communicate when the source and destination hosts are both on the same type of network but are connected by a different type of network U_Port Universal P...

Страница 101: ...tches or entire fabrics from a standard workstation running a browser Well known Address As pertaining to Fibre Channel a logical address defined by the Fibre Channel standards as assigned to a specific function and stored on the switch Workstation A computer used to access and manage the fabric May also be referred to as a management station or host WWN World Wide Name An identifier that is uniqu...

Страница 102: ...lso alias Zone Configuration A specified set of zones Enabling a configuration enables all zones in that configuration See also defined zone configuration enabled zone configuration Zone Member A port node WWN or alias which is part of a zone Zone Schemes The level of zoning granularity selected For example zoning may be done by switch port WWN AL_PA or a mixture See also zone configuration Zone S...

Страница 103: ... customizing environments 14 D defining QuickLoop zones 48 zones 32 33 devices 20 document conventions 9 related documentation 8 F fabric devices 20 Fibre Channel Arbitrated Loop FC_AL 45 G getting help 11 H hardware zones 28 help obtaining 11 HP authorized reseller 11 storage website 11 technical support 11 HP Web Tools Fabric Assist 17 QuickLoop 17 I implementing zoning 30 L loop initialization ...

Страница 104: ...zones 46 R related documentation 8 S switch adding 36 symbols in text 9 T technical support HP 11 text symbols 9 W websites HP storage 11 WWN zone 28 Z zone configurations enabling 33 zoning architecture 43 customization 14 defining 32 devices 20 implementation 30 multiple 20 Quickloops 45 ...

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