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EF2915 Series User Guide

Chapter 2: The EF2915 Series Storage System

Key Terms Used in This Guide

parity

or

checksum

Information stored on a disk in RAID levels 3 and 5 and used as a backup in case of
disk failure. The parity information, along with the data on the remaining drives,
provides complete information and enables the system to reconstruct the data of the
failed drive.

readahead

An automatic function the system performs when continuous sequential read requests
are received. With readahead, the system automatically reads into the data blocks from
disks before a request is received from the host.

request rate

The frequency of I/O requests.

striping

A process that binds a group of disks to form one logical unit. Striping often increases
performance over that of one disk.

transfer rate

The speed of data transmissions in millions of bits per second (Mbps).

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Содержание EF2915 Series

Страница 1: ...EF2915 Series User Guide ...

Страница 2: ...P N 801 000013 REV 53 EF2915 Series User Guide ...

Страница 3: ...pt the terms and conditions of the licensing agreement If you transfer the programs you must at the same time either transfer all copies whether in printed or machine readable form to the same party or destroy any copies not transferred Limitation of Liability Information presented by DataDirect Networks Inc in this manual is believed to be accurate and reliable However DataDirect Networks Inc ass...

Страница 4: ...u Begin 6 SAN Overview 7 Elements of a SAN 8 Example Fibre Channel SAN 9 Fibre Channel Overview 10 Who is Fibre Channel 11 How Does it Work 11 Fibre Channel Topologies 12 Types of Fibre Channel Ports 12 Fibre Channel Standards 13 Introduction to RAID Technology 14 RAID Level 0 14 RAID Level 1 15 RAID Level 1 0 15 RAID Level 3 16 RAID Level 5 17 RAID Level 50 18 RAID Level 6 19 Key Terms Used in Th...

Страница 5: ... MPC Hardware Description 42 MPC Software Description 42 Minimum MPC Requirements 43 DataDirect Networks SAN Manager Software Installation 43 DataDirect Networks SAN Manager Software Setup Verification 43 DataDirect Networks SAN Storage Product Support 44 DataDirect Networks SAN Manager Functions 44 Front Panel 45 LCD Information 45 EF2915 LCD Guide 46 LED Indicators 48 Rear Panel EF2915 49 SP2xx ...

Страница 6: ...2 SP2xx Storage Processor modules No Interlink communication 62 Ethernet connection cannot be established 64 RAID Configuration Warning 64 Chapter 6 Servicing the EF2915 Series System 65 Identifying Field Replaceable Units 66 Inserting SFPs 67 Replacing a Faulty Disk Drive 68 Drive Slots and Locations 68 Removal 68 Insertion 68 Removing and Replacing Power Supplies 70 Replacement 71 Removing and R...

Страница 7: ...vi EF2915 Series User Guide ...

Страница 8: ...uide 1 Chapter About this Guide 1 This chapter contains information on the contents and organization of this user guide including the intended audience use of note caution and warning symbols and typographical conventions ...

Страница 9: ...utions as well as an introduction to SAN and Fiber Channel technology and RAID technology This chapter also contains a list of key terms and specifications Chapter 3 Setting Up the EF2915 Series System Contains information on installing and connecting the system starting it up the front and rear panels LED indicators serial port configuration and probing and testing the EF2915 Chapter 4 Database A...

Страница 10: ...on as Note Caution or Warning Note It provides information on the current topic that is especially important to correct operation Caution Explains situations where damage to the equipment could result if a procedure is not followed correctly Warning Indicates that hazardous voltages or potential system damage could occur if a procedure is not followed correctly ...

Страница 11: ...your document in the subject line of your email or fax message Email support datadirectnet com Fax 818 700 7677 Table 1 2 Typographical Conventions Example Usage User Guide Titles of chapters or books Topic Heading Topic headings within chapters Firmware Directory and file names iosize Emphasis to highlight terms within text including parameter names new terms and important advisements in CAUTION ...

Страница 12: ...using the DataDirect Networks SAN Manager see the Administration and Operations User Guide Dual field serviceable RAID storage processors Auto repair ability to reconstruct data on failed drives Fibre Channel iSCSI Ethernet and serial ports for host attachment and administration Hot swappable power supplies with fail over capability providing data protection in the event of a power supply failure ...

Страница 13: ...es without having to use a terminal command line interface The DataDirect Networks SAN Manager is a central storage management utility software that provides storage system administrators with powerful and easy to use storage management capability The DataDirect Networks SAN Manager performs Fibre channel device discovery offers a graphical topology map and enables the IT administrator to monitor ...

Страница 14: ...networks are called Storage Area Networks or SANs A SAN is a collection of storage devices servers Fibre Channel switches and other devices such as routers Each device performs a different function within the SAN toward the same objective allowing highly efficient fast and reliable storage of data See Elements of a SAN below for more information on the different elements devices that comprise a SA...

Страница 15: ... SAN The arrays are storage devices Tape Systems Tape systems can be part of a SAN if you want to share them with servers this makes the tape systems more accessible Tape systems are usually connected to the SAN through routers Servers The servers are essential to SANs because they distribute the data that is transferred across the SAN for the purpose of storage The intended destination of the dat...

Страница 16: ...Chapter 2 The EF2915 Series Storage System SAN Overview EF2915 Series User Guide 9 Example Fibre Channel SAN Figure 2 1 Fibre Channel SAN Example ...

Страница 17: ...s now the technology of choice for applications that require high reliability high bandwidth and scalability The Fibre Channel architecture is a channel network integration in which the communication between the network devices is dynamic and intelligent The transmission of data within the network is separate from the controlling protocol so that various topologies point to point links arbitrated ...

Страница 18: ...ww snia org Fibre Channel Industry Association FCIA www fibrechannel com Fibre Alliance www fibrealliance org How Does it Work These steps provide a brief outline of how data is transferred across a Fibre Channel network as part of the data storage process 1 A server requests that the data be transferred to an DataDirect Networks storage device through the Fibre Channel network 2 The data is then ...

Страница 19: ...trolled manner This topology is similar to Token Ring in networking Fabric This topology involves numerous devices but is characterized by having one or more Fibre Channel switches in the same network The storage devices announce or register their presence on the fabric to the switches using the SNS simple name server databases that reside on the servers The SNS database includes the device s netw...

Страница 20: ...is based on how the port is connected Fibre Channel Standards Table 2 1 lists a number of Fibre Channel ANSI standards for your reference Table 2 1 ANSI Fibre Channel Standards Reference Title ANSI X3 230 1994 Fibre Channel Physical and Signaling Interface FC PH 2 Rev 4 3 ANSI X3 297 1996 Fibre Channel Physical and Signaling Interface 2 FC PH 2 Rev 7 4 ANSI X3 303 1ppx Fibre Channel Physical and S...

Страница 21: ...ames from 0 to 5 These reflect differences in functionality not ratings such as speed of data transfer data availability and data integrity The most commonly used RAID levels are levels 0 1 3 5 and 0 1 or 6 RAID Level 0 RAID level 0 is best suited to applications that require high I O speed and no data redundancy In RAID level 0 the data is broken down into segments and written simultaneously acro...

Страница 22: ...rotection Figure 2 3 RAID Level 1 File System The characteristics of RAID level 1 are summarized in Table 2 3 RAID Level 1 0 RAID level 1 0 like level 5 is best suited to read intensive random operations and online transaction processing OLTP which involves frequent file access RAID level 1 0 uses a method in which the data is mirrored onto a group of disk drives Figure 2 4 on page 16 It provides ...

Страница 23: ... parity information for the data written on the other disks Figure 2 5 Should data be lost because of disk failure it can be reconstructed from data on the remaining disks This arrangement provides high I O throughput high data transfer speed and data protection But it is inefficient in the reading and writing of small blocks of data Table 2 4 Characteristics of RAID Level 1 0 Advantages Disadvant...

Страница 24: ...tripes and the data and parity information is written simultaneously to the disks in an alternating fashion Figure 2 6 This results in increased data availability more system up time in the event of a disk failure and better read concurrence when reading small blocks of data The drawback of this technique is decreased system write performance and increased overhead in writing small blocks of data ...

Страница 25: ...ause it was implemented as a striped RAID level 0 array whose segments were RAID 3 arrays during mid 90s Figure 2 7 RAID 50 Table 2 6 Characteristics of RAID Level 5 Advantages Disadvantages Uses Enhances data availability system reliability and handling of small data blocks Decreases overall system performance because of increased overhead Applications for read intensive random operations on line...

Страница 26: ... an extremely high data fault tolerance and can sustain multiple simultaneous drive failures Figure 2 8 RAID 6 Table 2 7 Characteristics of RAID Level 50 Advantages Disadvantages Uses RAID 50 is more fault tolerant than RAID 5 but has twice the parity overhead High data transfer rates are achieved thanks to its RAID 5 array segments High I O rates for small requests are achieved thanks to its RAID...

Страница 27: ... of RAID Level 6 Advantages Disadvantages Uses Perfect solution for mission critical applications More complex controller design Controller overhead to compute parity addresses is extremely high Requires N 2 drives to implement because of dual parity scheme File and Application servers Database servers Web and E mail servers Intranet servers Excellent fault tolerance with the lowest overhead ...

Страница 28: ...s data availability The level of fault tolerance within the RAID system Availability increases as a function of the number of component failures that can occur without affecting overall system performance data integrity The operability of the RAID system and its ability to withstand failure front end The path between the host interface and the RAID SP120 SP125 storage processor dual porting An int...

Страница 29: ...ystem to reconstruct the data of the failed drive readahead An automatic function the system performs when continuous sequential read requests are received With readahead the system automatically reads into the data blocks from disks before a request is received from the host request rate The frequency of I O requests striping A process that binds a group of disks to form one logical unit Striping...

Страница 30: ... Voltage 90 260VAC Input Frequency 47 63 Hz auto ranging PFC Power Supply Rating Dual 460 Watt redundant Mean Time Between Failure MTBF 33 730 hours Environmental Operating Temperature 10 to 40 degrees Celsius 50 to 104 degrees Fahrenheit Relative Humidity 20 to 80 Certification FCC CISPR 22 Class A BSMI UL CUL CE Interfaces Host Interface Four 4Gb Fibre Channel interfaces or four 2Gb iSCSI interf...

Страница 31: ...VMV Managed Snapshotervices MSS Volume Copy Services VCS Intelligent Capacity Management ICM Remote Replication Services RRS Drives EF2915 Number of Drives Up to 15 Interface 4GB Fibre Channel switched loops Capacity Form Factor 36 73 146GB 15K rpm 4GB 146 300GB 10K rpm 2GB FC 250 500GB 7200 rpm SATA II Maximum Capacity per System 35TB with 240 x 146GB FC drives or 120TB with 240 x 500GB SATA II d...

Страница 32: ...EF2915 Series User Guide 25 Chapter Setting Up the EF2915 Series System 3 This chapter explains how to install the EF2915 Series system test its operation and make it ready for software configuration ...

Страница 33: ...air flow which can reduce reliability Desktop Allow at least 6 inches of unobstructed space at both front and rear Rackmount The EF2915 may be installed in any 19 inch cabinet or relay rackmount device that complies with EIA 310 D specifications Input Power The EF2915 Series system can operate with input voltages of 110 V AC 220 V AC The EF2915 Series system is designed to operate with single phas...

Страница 34: ...g check the carton s contents Contact DataDirect Networks immediately if items are missing or you find signs of damage Table 3 2 EF2915 Packing List Quantity Description 1 Quick Install Guide 1 Software media with EF2915 utilities CD 2 A C power cables 1 Serial Administration cable 2 Rackmount rails or brackets rackmount configurations only 1 EF2915 storage system populated with Disk drives Up to ...

Страница 35: ...ting rail 3 The right front rail marked is placed inside the right rear rail marked as shown in Figure 3 1 4 Assemble the mounting rail assembly attach the Front rail marked to the Rear rail marked using three 8 32 pan head screws and three 8 nuts Repeat for the other mounting rail assembly 5 Using four 10 32 pan head screws and four 10 cage nuts install the mounting rail assembly to the front and...

Страница 36: ...Chapter 3 Setting Up the EF2915 Series System Installing the EF2915 in a Cabinet using the RK12 Kit EF2915 Series User Guide 29 Figure 3 1 EF2915 Rackmount Assembly ...

Страница 37: ...utilized when connecting the EF2915 in a cabinet are Host connection to the EF2915 DB9 ports via serial cable The serial connections are only used for troubleshooting and maintenance Fibre channel connections from host switch via LC LC port on EF2915 Ethernet connection from EF2915 to Ethernet Hub The Ethernet connection is used for enclosure configuration and management The System Manager softwar...

Страница 38: ...tiple EXP2915 s Note that the left hand port of both Storage Processors in the EF2915 are connected to the same EXP2915 It is not permitted to connect to a EXP2915 from the right hand port of one Storage Processor and from the left hand port of the other Storage Processor Firmware in the Storage Processors requires that these connections are not crossed Also note that the left hand port on the hub...

Страница 39: ...een When this screen is displayed pressing the Up or Down Arrow will cause the transfer rate to change between 4 and 2Gb Press Enter to make the selection A screen will then be displayed advising that the system must be rebooted in order to finalize the rate change Configuring the Fibre Channel Interface of a EXP2915 The Fibre Channel interface is configured using the front panel display and push ...

Страница 40: ...wn Arrow and Up Arrow buttons to scroll through the parameter selec tions Use the Enter button to select a parameter for modification 2 Use the Down Arrow and Up Arrow buttons to scroll through the possible values for the parameter Push the Enter button to confirm the selection A success message will be displayed to acknowledge the modification ...

Страница 41: ... and Rx must be double crossed or a special null modem cable must be used the EF2915 serial port is a null connector Use a null modem cable to connect to the system s serial port A null modem cable connects the Transmitted Data TD pin 2 on one RS 232 interface to the Received Data RD pin 3 on the other RS 232 interface Configuring a Solaris Host for the Serial Port If you are attaching a Solaris h...

Страница 42: ...ev cua b 2 Remove the existing file rm devices pci 1f 4000 ebus 1 se 14 400000 b cu 3 Enter init 0 At the ok prompt enter boot r After rebooting the host should be able to connect to the serial port a port 1 If it is the a port you cannot connect to enter ll dev cua a 2 Remove the existing file rm devices pci 1f 4000 ebus 1 se 14 400000 b cu 3 Enter init 0 At the ok prompt enter boot r After reboo...

Страница 43: ...38400 el C S Q U D ie oe D nt hf pc6 dv dev cua pc6 br 38400 el C S Q U D ie oe D nt hf pc7 dv dev cua pc7 br 38400 el C S Q U D ie oe D nt hf cuab dv dev cua b br 9600 cuaa dv dev cua a br 9600 dialup1 Dial up system pn 2015551212 tc UNIX 2400 hardwire At the Unix prompt type tip cuaa or tip cuab to establish the serial connection to the SP120 DataDirect Networks Automating Storage Expertise EF R...

Страница 44: ...no raid or rmon prompt do the following 1 Strike any key several times to try to get a response 2 If there is no response hold the Shift key and press the key 3 Release both the Shift key and the key 4 Press the key This quits the cu utility Check the serial cable connection and serial port configuration Then try again If you are still unsuccessful refer to Chapter 5 Troubleshooting or contact Dat...

Страница 45: ...he Network Configuration Utility program This program requires the workstation to have the Java Runtime Environment JRE installed The CD will assist you in downloading the JRE if it is not already present in the workstation 2 Click on the Discover button to perform a network scan and discover installed Dat aDirect Networks Storage Systems Systems discovered are displayed and identified by a 16 dig...

Страница 46: ...Chapter 3 Setting Up the EF2915 Series System Cable Connections EF2915 Series User Guide 39 ...

Страница 47: ...The fibre channel cables connect the input of the EF2915 to either the Host Bus Adapter ports on a server or to ports on a fibre channel switch that is connected to one or more hosts See Figure 3 4 for a diagram showing the fibre channel input connections to an EF2915 Figure 3 4 EF2915 Fibre Channel Input Connections ...

Страница 48: ...enclosure for configuration The SAN Manager running on a PC is referred to as the Management PC MPC Refer to Configuring a Management Console on page 42 below for an introduction to the SAN Manager Please refer to DataDirect Networks document 801 000001 for the DataDirect Networks Administrator Guide Using the System Manager A PC or other workstation with a web browser can be used to display the S...

Страница 49: ... MPC Both in band and out of band monitoring and management are supported MPC Software Description Both the Solaris and Windows workstations come pre loaded with operating systems The DataDirect Networks CD contains the DataDirect Networks SAN Manager software The DataDirect Networks SAN Manager works in a client server model The client application a Java applet runs on a Java Virtual Machine in a...

Страница 50: ...DataDirect Networks SAN Manager software package through a Java supported browser on your management console remote workstation or PC The Java applet enables you to easily manage the DataDirect Networks SAN storage system locally or remotely DataDirect Networks SAN Manager Software Setup Verification When the DataDirect Networks SAN Manager is successfully installed in the MPC a program folder for...

Страница 51: ...s SAN Manager software that you have successfully installed in the MPC supports the following DataDirect Networks SAN storage products EXP2915 EF2915 DataDirect Networks SAN Manager Functions The following list includes some of the major DataDirect Networks SAN Manager functions SAN discovery and topology map does not apply to iSCSI SAN planning and configuration SAN monitoring Event warning syste...

Страница 52: ... disk enclosure also has an LCD screen for displaying information Note Refer to Chapter 6 Servicing the EF2915 Series System for the steps to remove and replace drive trays LCD Information The LCD displays status information of the EF2915 disk enclosure You can navigate through the display using the Up and Down arrows to display different types of information and to change the Fibre Channel rate S...

Страница 53: ...ng Status Screens Menu screens may be displayed by pressing the up arrow and down arrow buttons Consecutive pressing of the down arrow button will select the following menu screens Table 3 4 through Table 3 7 Pressing down arrow again will wrap back to the Network Configuration screen Consecutive pressing of the up arrow button will scroll through the menu screens in reverse order To select the me...

Страница 54: ...ch slot that does not contain a hard drive Hard Drive fault Displays a 1 digit for each slot with a fault or a 0 digit for each slot that does not have a fault EMIO Temperature Displays the temperature at the EMIO PCB in degrees Celsius Power Supplies Displays OK or Failed for each of the two Power Supplies Blowers Displays OK or Failed for each of the two blower cages Table 3 6 Information Items ...

Страница 55: ...e 3 9 on page 59 for LED locations Table 3 7 and Table 3 8 below list LED Indications Figure 3 5 Front Panel and LED Indicators Table 3 8 Green LED Indicators GREEN LED Description EF2915 FC No Activity Steady OFF Spinning up Slow flashing Table 3 9 Amber LED Indicators AMBER LED Description EF2915 FC Drive OK or no drive in slot Steady OFF Drive failure Steady ON RAID rebuild Slow flashing ...

Страница 56: ...modules DB9 serial interfaces Ethernet port Fibre Channel ports EMIO module one or two SP288 storage processors and two AC receptacles Table 3 10 Rear Panel Components EF2915 Figure 3 6 The EF2915 Rear Panel Callout Description 1 Power Supply 0 2 Power Supply 1 3 Fan Module 0 4 Fan Module 1 5 AC connector 6 SP2xx storage processor 0 7 SP2xx storage processor 1 8 EMIO 9 On Off Switch ...

Страница 57: ... Solaris Host Use the following steps to probe the EF2915 from a Solaris host 1 Type format Return You should see the following two disks displayed in the format menu cXtTd7 DataDirect Networks RAIDStar SMON 0200 cyl 126 alt 2 hd 16 sec 128 pci 1F 2000 scsi 1 sd 0 7 In each line the field cXtTd7 identifies The host SCSI controller X The selected SCSI target ID for the EF2915 T LUN 0 do or LUN 7 d7...

Страница 58: ...stance properly refer to your Oracle documentation 3 Restart the instance in an archive log mode refer to your Oracle documentation 4 Restart the Oracle listener refer to your Oracle documentation 5 Create an DataDirect Networks_Agent folder 6 Choose one of the following steps depending on your Oracle version a If you are using Oracle8i copy the CD ROM Agents Oracle8i Agents jar to the DataDirect ...

Страница 59: ...52 EF2915 Series User Guide Chapter 4 Database Application Agent for Oracle SQL and Exchange Oracle on a Windows Server Note The agent needs to restart if the Oracle server reboots ...

Страница 60: ...ener refer to your Oracle documentation 5 Create an DataDirect Networks_Agent folder 6 Choose one of the following steps depending on your Oracle version a If you are using Oracle8i copy the CD ROM Agents Oracle8i Agents jar to the DataDirect Networks_Agent folder b If you are using Oracle9i copy the CD ROM Agents Oracle9i Agents jar to the DataDirect Networks_Agent folder Start Up Follow the step...

Страница 61: ...apshot vdisk must be mounted to the host Installation VSS Provider Setup Double click DataDirect Networks VSS Hardware Provider Build exe to launch the installation process which will install the VSS Provider The service will be automatically started when doing backup Exchange2003 Agent Setup Double click DataDirect Networks ExchangeAgent2k3 Build exe to launch the installation process which will ...

Страница 62: ...Windows Server EF2915 Series User Guide 55 4 Using SAN Manager Figure 4 1 Exchange Backup Using SAN Manager Doing Restore 1 Mount the snapshot to the host and manually copy the mailbox and log files from the snapshot drive to the First Storage Group 2 Mount the First Storage Group ...

Страница 63: ...e backup Restore can be performed using command line mode Before doing restore the snapshot vdisk must be mounted to the host Installation SQL Backup Agent Setup Double click DataDirect Networks SQL Agent Build exe to launch the installation process which will install the DataDirect Networks SQL Backup Agent the service will be automatically started after the installation is finished Insure that t...

Страница 64: ... and Exchange SQL Server on Windows EF2915 Series User Guide 57 Figure 4 2 SQL Backup Using SAN Manager Do Restore Migrate the database backup data files from permanent storage to the original file path INSTALL_DIR SQLAgent restore s SessID b BkpDBName ...

Страница 65: ...58 EF2915 Series User Guide Chapter 4 Database Application Agent for Oracle SQL and Exchange SQL Server on Windows ...

Страница 66: ...ct Networks Technical Support Worldwide Corporate Offices 9351 Deering Avenue Chatsworth CA 91311 USA Problem Indications Several indications of possible problems which you may encounter are covered here with suggested ways of proceeding They include EF2915 cannot be turned ON EF2915 does not respond No raid prompt from the EF2915 Host cannot probe the EF2915 by format command DataDirect Networks ...

Страница 67: ...e the rmon prompt type b the boot command If the raid prompt appears type autoboot the autoboot command If you cannot get the raid prompt from the EF2915 write down any messages that appear and call DataDirect Networks Technical Support Host cannot probe the EF2915 by format command Make sure that the cable connects the host to the EF2915 properly Turn the EF2915 OFF then ON again Reboot the host ...

Страница 68: ...F 21 00 00 09 2B 20 00 CF DataDirect Networks RAIDStar SMON 0201 SUCCESS 29 00 00 09 2B 20 00 CF 29 00 00 09 2B 20 00 CF DataDirect Networks RAIDStar SMON 0201 SUCCESS 21 29 00 09 2B 20 58 70 21 29 00 09 2B 20 58 70 DataDirect Networks RAIDStar SMON 0201 SUCCESS 29 29 00 09 2B 20 58 70 29 29 00 09 2B 20 58 70 DataDirect Networks RAIDStar SMON 0201 SUCCESS 10 00 00 06 2B 06 0B 08 20 00 00 06 2B 06 ...

Страница 69: ...the FC port on the switch Amber LED indicates no connectivity 3 If there is no connectivity remove and reinsert the SFP module to ensure proper con nection If this does not produce successful results please replace the SFP module SP2xx Storage Processor modules No Interlink communication Methods of discovering that your Interlink connection is not established 1 Type hwconf at the command line If a...

Страница 70: ...hronization of controllers no Interlink connection is established 11 31 59 09 11 02 Starting remote controller communications daemon 11 31 59 09 11 02 rrcid dev rrci 11 31 59 09 11 02 Starting rrcid pid 291 on controller 0 11 31 59 09 11 02 291 11 32 29 09 11 02 Waiting for peer controller If a message appears that indicates controllers are successfully synchronized an Interlink connection is esta...

Страница 71: ...the same network RAID Configuration Warning Removing an active drive during a write sequence usually causes a media error because the correct ECC or CRC data may not be written to the media successfully Afterward when reading from the affected sectors the drive will show media errors if the ECC CRC and data do not match Such an error is not recoverable unless the data that was incorrectly written ...

Страница 72: ...erviceable with modular components This chapter describes the steps to remove and replace Field Replaceable Units FRUs that provide critical system functions All FRUs are easily accessible from the front or rear of the unit They include Disk drives SP2xx storage processors Power supplies Cooling fans ...

Страница 73: ...ure 6 1 shows the EF2915 rear panel and the locations of Field Replaceable Units FRUs Figure 6 1 EF2915 Rear Panel Table 6 1 Rear Panel Components EF2915 Callout Description 1 Power Supply 1 2 Power Supply 0 3 Fan Module 1 4 Fan Module 0 5 AC connector 6 SP2xx storage processor 0 7 SP2xx storage processor 1 8 EMIO 9 On Off Switch 5 1 6 2 9 3 8 7 4 ...

Страница 74: ...er cable to the fibre channel host adapter in the EF2915 system They slide into the port openings of the SP2xx processors Caution Care must be taken to insure that the SFPs are inserted in the correct orientation in order to avoid damaging the SFP or the socket that it fits into Refer to Figure 6 2 for the correct orientation of the SFP for insertion into the processor socket Figure 6 2 SFP Insert...

Страница 75: ...and replacement if necessary If a drive s amber LED stays ON this indicates that the drive has failed and must be replaced Drive Slots and Locations Drive slots are numbered from 0 to 14 from left to right as viewed from the front Removal To remove a disk drive tray 1 Lift up the LCD display panel 2 Identify the drive that needs to be replaced 3 Pull out the sliders to hold the LCD panel in place ...

Страница 76: ...15 Series System Replacing a Faulty Disk Drive EF2915 Series User Guide 69 3 Holding the handle align the tray with the slot 4 Push the tray into the slot until it locks in place You will hear a click as the drive locks into place ...

Страница 77: ...ower is on without affecting system operation Note The EF2915 can operate on one power supply alone We recommend that you install two power supplies for redundancy To remove a power supply from the EF2915 1 Turn off the power of the power supply to be removed 2 Remove AC cord 3 Remove the fastening screw Figure 6 4 top 4 Grasp the handle and slide the power supply out of the chassis Figure 6 4 bot...

Страница 78: ...lign the power supply with the opening on the rear panel 2 Be sure that the power supply switch is set to OFF 3 Slide the supply into the chassis 4 Tighten the thumb screw 5 Plug in the AC cord 6 Turn on power 7 Verify that the power supply is functioning properly by checking its status using the LCD information and the DataDirect Networks SAN Manager ...

Страница 79: ... software is being used on the host Removal To remove a SP22x processor module 1 Make sure all of the cables are clearly marked to indicate which connector on the stor age processor they plug into 2 Unscrew the two screws Figure 6 5 top 3 Carefully pull the board from the chassis Figure 6 5 bottom This disengages the SP22x processor module from the mid plane board Caution Slide the board out evenl...

Страница 80: ...which connector on the stor age processor they plug into 2 Unscrew the two screws Figure 6 6 top 3 Carefully pull the board from the chassis Figure 6 6 bottom This disengages the SP28x processor module from the mid plane board Caution Slide the board out evenly It connects to the mid plane by two connectors 4 Slide the board away from the system Note Do not remove the backplane from the SP28x proc...

Страница 81: ...sure that they are of the exact same manufacturer model and speed Replacement Caution When inserting the SP2xx processor modules make sure you align the connec tor pins with the connectors To replace a SP2xx storage processor module 1 Align the storage processor module with the opening in the rear panel 2 Slide the storage processor module in until it meets the mid plane connectors 3 Using even pr...

Страница 82: ... the correct connectors 6 Verify the storage processor is functioning correctly by checking the status using the DataDirect Networks SAN Manager and LCD Note After replacing a storage processor module you must reconfigure the RAID set on the new storage processor if its configuration is different from that of the original storage processor ...

Страница 83: ...System Removing and Replacing Fan Modules Removing and Replacing Fan Modules The EF2915 s two fans are serviceable from the rear of the unit Caution To avoid system damage in case of fan failure never run the EF2915 for more than 5 minutes without operating either fan ...

Страница 84: ...emove a fan module in the EF2915 1 Unscrew the screws Figure 6 7 top 2 Using the handle pull out the fan module Figure 6 7 bottom Note The power connector for the fans is hard mounted to the fan module Power is disconnected automatically when you pull the module out Figure 6 7 Removing a Fan Module in the EF2915 ...

Страница 85: ...To replace a fan module 1 Using the handle align the fan module with the opening on the rear panel 2 Align the power connector with the plug 3 Carefully push the module into place 4 Tighten the thumb screw 5 Verify the fan module is functioning properly by checking status using the LCD and DataDirect Networks SAN Manager ...

Страница 86: ...915 Series System Removing and Replacing the EMIO Module EF2915 Series User Guide 79 Removing and Replacing the EMIO Module The EF2915 has one Enclosure Management Input Output module that is serviceable from the rear of the unit ...

Страница 87: ...e EF2915 Series System Removing and Replacing the EMIO Module To remove the EMIO module from an EF2915 1 Unscrew the screws Figure 6 8 top 2 Using the handle pull out the fan module Figure 6 8 bottom Figure 6 8 Removing the EMIO module from the EF2915 ...

Страница 88: ...Removing and Replacing Battery Module The EF2915 has one battery module that is serviceable from the rear of the unit To remove the battery module from an EF2915 1 Unscrew the screws Figure 6 9 top 2 Using the handle pull out the fan module Figure 6 9 bottom Figure 6 9 Removing the Battery Module from an EF2915 ...

Страница 89: ...82 EF2915 Series User Guide Chapter 6 Servicing the EF2915 Series System Removing and Replacing Battery Module ...

Страница 90: ...mes can be sent to a recipient A credit represents a device s ability to accept an additional frame If no credits are issued by a recipient to a sender the sender cannot send to that recipient Class 2 A connectionless Class of Service that allows streams of frames to be sent to different destinations quickly and requires acknowledgment of frame delivery It is generally used in applications requiri...

Страница 91: ...through a point to point connection See also N_Port Fl_Port Fabric Loop Port An F_Port containing arbitrated loop functions HBA Host Bus Adaptor A Fibre Channel interface card that plugs into a host such as a PCI or SBUS card Initiator A server or workstation in a Fibre Channel network that starts transactions to disk or tape See also Target iSCSI Small Computer Systems Interface mapped onto TCP I...

Страница 92: ...lso Arbitrated Loop SAN Storage Area Network A network that links servers and workstations to disk arrays and tape backup subsystems in a Fibre Channel network Sequence A group of one or more related frames See also Frame and Word Sequence Count The value in the frame header that helps identify the order in which the frames were transmitted Sequence ID The value in a frame header that distinguishe...

Страница 93: ...86 EF2915 Series User Guide Chapter 7 Glossary WWN World Wide Name A unique 64 bit address assigned to a Fibre Channel device during manufacturing See also Source WWN and Destination WWN ...

Страница 94: ...1 Class 2 87 Class 3 87 D data availability 21 data integrity 21 Database Application Agent for Oracle 53 Destination WWN 87 Drive names and locations 70 Drives names and locations 70 dual porting 21 E Environmental requirements 26 exchange in Fibre Channel 87 F F_Port 88 fabric 88 Fabric Login FLOGI 88 Fibre Channel overview 10 terminology 87 Fl_Port 88 front end 21 Front panel 45 G glossary Fibr...

Страница 95: ...annel 10 iSCSI 14 SAN 7 P Point to point in Fibre Channel 89 Port Login PLOGI 89 Power 26 Private Loop in Fibre Channel 89 Public Loop in Fibre Channel 89 R Rack installation 28 RAID file systems 14 readahead 22 Removing and replacing disk drives 70 request rate 22 S SAN overview 7 sequence in Fibre Channel 89 sequence count in Fibre Channel 89 sequence ID 89 servicing the iQ12xx Series 67 setting...

Страница 96: ...Chapter EF2915 Series User Guide 89 U Unpacking 27 W word in Fibre Channel 89 World Wide Name WWN 87 ...

Страница 97: ...DataDirect Networks Inc Worldwide Corporate 9351 Deering Avenue Chatsworth CA 91311 1 818 700 7600 1 800 TERABYTE 837 2298 1 818 700 7601 Fax info datadirectnet com ...

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