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IBM TotalStorage DS4400, User Manual

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Monitoring

 

status

 

through

 

software

  

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. 27

 

Firmware

 

updates

 

.

 

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. 27

 

Checking

 

the

 

indicator

 

lights

  

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. 27

 

Storage

 

server

 

indicator

 

lights

  

.

 

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. 28

 

RAID

 

controller

 

indicator

 

lights

  

.

 

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. 29

 

Battery

 

indicator

 

lights

  

.

 

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. 31

 

Fan

 

and

 

communications

 

module

 

indicator

 

light

  

.

 

.

 

.

 

.

 

.

 

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.

 

.

 

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. 32

 

Power

 

supply

 

indicator

 

light

  

.

 

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. 33

 

Mini-hub

 

indicator

 

lights

 

.

 

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. 33

 

Overtemperature

 

condition

 

and

 

power

 

supply

 

shutdown

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 36

 

Turning

 

on

 

the

 

power

 

after

 

an

 

overtemperature

 

shutdown

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 36

 

Turning

 

on

 

the

 

power

 

after

 

an

 

emergency

 

shutdown

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

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.

 

. 37

 

Checking

 

the

 

battery

 

service

 

date

  

.

 

.

 

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.

 

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. 37

 

Preparing

 

to

 

move

 

the

 

DS4400

 

Storage

 

Server

  

.

 

.

 

.

 

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.

 

.

 

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.

 

.

 

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. 38

 

Moving

 

or

 

relocating

 

the

 

DS4400

 

Storage

 

Server

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 39

 

Chapter

 

3.

 

Replacing

 

DS4400

 

Storage

 

Server

 

components

  

.

 

.

 

.

 

.

 

.

 

.

 

. 41

 

Handling

 

static-sensitive

 

devices

  

.

 

.

 

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. 41

 

DS4400

 

Storage

 

Server

 

controller

  

.

 

.

 

.

 

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. 41

 

Servicing

 

notes

 

.

 

.

 

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. 42

 

Replacing

 

a

 

failed

 

controller

  

.

 

.

 

.

 

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. 43

 

Battery

  

.

 

.

 

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. 44

 

Servicing

 

notes

 

.

 

.

 

.

 

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.

 

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.

 

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.

 

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. 44

 

Replacing

 

a

 

failed

 

battery

  

.

 

.

 

.

 

.

 

.

 

.

 

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.

 

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.

 

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.

 

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. 45

 

Storage

 

server

 

fan

  

.

 

.

 

.

 

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.

 

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.

 

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. 49

 

Servicing

 

notes

 

.

 

.

 

.

 

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.

 

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.

 

.

 

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.

 

.

 

.

 

.

 

. 50

 

Replacing

 

a

 

failed

 

storage

 

server

 

fan

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

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.

 

.

 

.

 

.

 

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. 50

 

Fan

 

and

 

communications

 

module

  

.

 

.

 

.

 

.

 

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.

 

.

 

.

 

.

 

.

 

.

 

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.

 

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. 52

 

Servicing

 

notes

 

.

 

.

 

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.

 

.

 

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. 52

 

Replacing

 

a

 

failed

 

fan

 

and

 

communications

 

module

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

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. 53

 

Power

 

supply

  

.

 

.

 

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. 55

 

Servicing

 

notes

 

.

 

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. 55

 

Replacing

 

a

 

failed

 

power

 

supply

  

.

 

.

 

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.

 

.

 

.

 

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. 56

 

Small

 

Form-Factor

 

Pluggable

 

(SFP)

 

Modules

 

.

 

.

 

.

 

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. 58

 

Servicing

 

notes

 

.

 

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. 58

 

Replacing

 

a

 

failed

 

SFP

 

module

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

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.

 

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. 59

 

Mini-hubs

  

.

 

.

 

.

 

.

 

.

 

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.

 

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. 63

 

Servicing

 

notes

 

.

 

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. 63

 

Replacing

 

a

 

failed

 

mini-hub

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

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.

 

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.

 

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. 63

 

Appendix.

 

Accessibility

  

.

 

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. 67

 

Notices

  

.

 

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. 69

 

Edition

 

notice

  

.

 

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. 69

 

Trademarks

  

.

 

.

 

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. 70

 

Important

 

notes

 

.

 

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. 70

 

Electronic

 

emission

 

notices

  

.

 

.

 

.

 

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. 71

 

Federal

 

Communications

 

Commission

 

(FCC)

 

statement

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 71

 

Industry

 

Canada

 

Class

 

A

 

emission

 

compliance

 

statement

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 71

 

Australia

 

and

 

New

 

Zealand

 

Class

 

A

 

statement

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 71

 

United

 

Kingdom

 

telecommunications

 

safety

 

requirement

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 71

 

European

 

Union

 

EMC

 

Directive

 

conformance

 

statement

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 72

 

Taiwan

 

electrical

 

emission

 

statement

  

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

.

 

. 72

 

Japanese

 

Voluntary

 

Control

 

Council

 

for

 

Interference

 

(VCCI)

 

statement

  

.

 

.

 

. 72

 

Power

 

cords

 

.

 

.

 

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. 72

 

 

iv

 

IBM

 

TotalStorage

 

DS4400

 

Fibre

 

Channel

 

Storage

 

Server:

 

User’s

 

Guide

Summary of Contents for TotalStorage DS4400

Page 1: ...IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide GC26 7730 00...

Page 2: ......

Page 3: ...IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide GC26 7730 00...

Page 4: ...the general information under Notices on page 69 First Edition January 2005 Copyright International Business Machines Corporation 2005 All rights reserved US Government Users Restricted Rights Use du...

Page 5: ...rt xxviii Fire suppression systems xxviii How to send your comments xxviii Chapter 1 Introduction 1 DS4400 Storage Server overview 1 Product updates 2 Front view 3 Back view 3 Fibre Channel connection...

Page 6: ...ing a failed battery 45 Storage server fan 49 Servicing notes 50 Replacing a failed storage server fan 50 Fan and communications module 52 Servicing notes 52 Replacing a failed fan and communications...

Page 7: ...Glossary 75 75 Index 85 Contents v...

Page 8: ...vi IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 9: ...ower switch locations 25 24 Storage server indicator lights 28 25 RAID controller indicator lights 30 26 Battery indicator lights 31 27 Fan and communications module indicator light 32 28 Power supply...

Page 10: ...viii IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 11: ...orage DS4000 Storage Manager Version 9 titles by user tasks xxiv 7 TotalStorage DS4000 and DS4000 related document titles by user tasks xxv 8 Possible combinations of FAStT EXP500 and DS4000 EXP700 st...

Page 12: ...x IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 13: ...lleert eerst de veiligheidsvoorschriften Ennen kuin asennat t m n tuotteen lue turvaohjeet kohdasta Safety Information Avant d installer ce produit lisez les consignes de s curit Vor der Installation...

Page 14: ...signal cables v Never turn on any equipment when there is evidence of fire water or structural damage v Disconnect the attached power cords telecommunications systems networks and modems before you op...

Page 15: ...as CD ROMs DVD drives fiber optic devices or transmitters are installed note the following v Do not remove the covers Removing the covers of the laser product could result in exposure to hazardous la...

Page 16: ...vice and the power switch on the power supply do not turn off the electrical current supplied to the device The device also might have more than one power cord To remove all electrical current from th...

Page 17: ...s the following label atteched Hazardous voltage current and energy levels are present inside any component that has this label attached There are no serviceable parts inside these components If you s...

Page 18: ...xvi IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 19: ...ications on page xix FAStT product renaming IBM is in the process of renaming some FAStT family products Table 1 identifies each new DS4000 product name with its corresponding FAStT product name Note...

Page 20: ...book provided with your IBM DS4400 Fibre Channel Storage Server Each caution and danger statement is numbered for easy reference to the corresponding statements in the safety book The following types...

Page 21: ...stall and User s Guide Copy Services User s Guide DS4000 Storage Manager DS4000 Storage Manager Installation and Support OS Guides DS4000 Hardware Maintenance Manual DS4000 Problem Determination Guide...

Page 22: ...dministration Diagnosis and Maintenance IBM TotalStorage DS4500 Installation and Support Guide GC26 7727 U U U IBM TotalStorage DS4500 Fibre Channel Cabling Instructions GC26 7729 U U IBM TotalStorage...

Page 23: ...document titles by user tasks Title User Tasks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM DS4400 Fibre Channel Stora...

Page 24: ...Administration Diagnosis and Maintenance IBM TotalStorage DS4300 Fibre Channel Storage Server Installation and User s Guide GC26 7722 U U U IBM TotalStorage DS4300 Rack Mounting Instructions GC26 772...

Page 25: ...otalStorage DS4100 SATA Storage Server document titles by user tasks Title User Tasks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Main...

Page 26: ...Diagnosis and maintenance IBM TotalStorage DS4000 Storage Manager Version 9 Installation and Support Guide for Windows 2000 Server 2003 NetWare ESX Server and Linux GC26 7706 U U U IBM TotalStorage D...

Page 27: ...lStorage DS4000 Hardware Maintenance Manual GC26 7702 U IBM TotalStorage DS4000 Problem Determination Guide GC26 7703 U IBM Fibre Channel Planning and Integration User s Guide and Service Information...

Page 28: ...he figures used in this document are for illustrative purposes only In some cases the actual device might look different from the figure Getting information help and service If you need help service o...

Page 29: ...e the troubleshooting information in your system documentation for instructions for using the diagnostic programs The troubleshooting information or the diagnostic programs might tell you that you nee...

Page 30: ...S and Canada hardware service and support is available 24 hours a day 7 days a week In the U K these services are available Monday through Friday from 9 a m to 6 p m Fire suppression systems A fire su...

Page 31: ...n it by mail or fax 1 800 426 6209 or give it to an IBM representative If the RCF has been removed you can address your comments to International Business Machines Corporation Information Development...

Page 32: ...xxx IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 33: ...Form Factor Pluggable SFP modules The DS4400 Storage Server also has a removable front bezel The DS4400 Storage Server functions with at least one external storage expansion enclosure containing Fibr...

Page 34: ...In the pull down menu select Storage Another pull down menu displays 4 In the new pull down menu and in the subsequent pull down menus that display select the following topics v Computer Storage v Dis...

Page 35: ...rollers Two removable units that each contain one RAID controller with 1 Gb cache memory and status indicator lights Note The illustrations in this document might differ slightly from your hardware Re...

Page 36: ...bre Channel connections When fully configured the back of the DS4400 Storage Server can accommodate up to four host side and four drive side mini hubs Each mini hub is a single removable unit that pro...

Page 37: ...g fiber optic cables read the following precautions Attention To avoid damage to your fiber optic cables follow these guidelines v Do not route the cable along a folding cable management arm v When at...

Page 38: ...us Adapter Part Number 24P0960 Figure 6 shows an LC LC Fibre Channel cable The following sections provide the procedures for properly connecting and removing an LC LC Fibre Channel cable Note If you a...

Page 39: ...herein might result in hazardous radiation exposure DANGER Some laser products contain an embedded Class 3A or Class 3B laser diode Note the following Laser radiation when open Do not stare into the b...

Page 40: ...to an SFP module that is installed in a DS4400 Storage Server mini hub OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s SFP module Fiber optic cable 5 Remove the two...

Page 41: ...IBM DS4000 FC 2 Host Bus Adapter Part Number 19K1246 or an IBM DS4000 FC2 133 Host Bus Adapter Part Number 24P0960 v LC SC Fibre Channel cable adapter For information about using an LC SC cable adapt...

Page 42: ...s shown in Figure 11 When removing the cable make sure you do not grasp the SFP module plastic tab Lever Latches 2 Replace the protective caps on the cable ends 3 Replace the protective cap on the SFP...

Page 43: ...pter to a device or LC LC cable complete the following steps Statement 3 CAUTION When laser products such as CD ROMs DVD drives fiber optic devices or transmitters are installed note the following v D...

Page 44: ...able as shown in Figure 13 Save the protective caps for future use 4 Carefully insert one end of an LC LC cable into the LC connector end of the LC SC cable Push in the connector until it clicks into...

Page 45: ...d position when removing the cable 1 On the end of the cable that connects into the LC connector end of the LC SC cable adapter press down and hold the lever to release the latches Figure 15 shows the...

Page 46: ...the IBM DS4400 Fibre Channel Storage Server Installation Guide Host interface ports The DS4400 Storage Server comes with host side mini hubs 1 and 2 installed Each mini hub provides host loop connecti...

Page 47: ...illustration of the drive side mini hub interface ports OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 G...

Page 48: ...S4000 EXP710 is attached to the DS4400 Storage Server in one drive loop no FAStT EXP500s can be present either in the same drive loop or in the other drive loop Note This restriction exists because th...

Page 49: ...units Number of DS4000 EXP700 units Total number of storage expansion enclosures Total number of drives 0 8 8 112 1 7 8 108 2 6 8 104 3 6 9 114 4 5 9 110 5 4 9 106 6 3 9 102 7 3 10 112 8 2 10 108 9 1...

Page 50: ...ntermixing DS4000 EXP100s with either DS4000 EXP710s DS4000 EXP700s or both EXP710s and EXP700s state that you must group like enclosure types together regardless of what the type is In order to attac...

Page 51: ...t interface ports one for each controller Controller A and Controller B Use the Ethernet ports to directly manage storage subsystems Figure 20 shows the location of the interface ports OUT IN 2 Gb s 1...

Page 52: ...20 IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 53: ...n other than the logical drives created for the DS4400 storage server v Ensure that your system is in an optimal state before you shut it down Never turn the power off if any fault light is lit be sur...

Page 54: ...information to thoroughly diagnose and repair the unit Therefore it is important to use the storage management software to continuously monitor the status of the DS4400 Storage Server Checking the in...

Page 55: ...y pull the bottom of the bezel out to release the pins then slide the bezel down as shown in Figure 21 DS4400 bezel 2 To replace the bezel slip the top edge of the bezel under the lip on the chassis t...

Page 56: ...ower outage go to Overtemperature condition and power supply shutdown on page 36 Use the following procedure to turn on the DS4400 Storage Server and connected devices 1 Turn on the power to the suppo...

Page 57: ...the indicator lights on page 27 4 Restart or turn on the power to the host Turning off the power Attention The DS4400 Storage Server is designed to run continuously 24 hours a day Except in an emergen...

Page 58: ...b Use the operating system software to disconnect the DS4400 Storage Server logical drives from the host before the storage server is powered off c Make sure that the fast write cache indicator light...

Page 59: ...rmware updates In order to ensure the optimal operation of the DS4400 storage server and its attached storage expansion enclosures the storage expansion enclosure ESM firmware the DS4400 storage serve...

Page 60: ...owing sections Storage server indicator lights The storage server has five indicator lights as shown in Figure 24 To view the storage server indicator lights you do not have to remove the DS4400 Stora...

Page 61: ...d communications module is missing unplugged or has failed v Storage server fan circuitry failure v Overtemperature condition Controller fault Amber Off On v RAID controller is restarting v RAID contr...

Page 62: ...controller is working Normal status On blinking Problem status On Status 8 lights including the Heartbeat Green lights indicate controller status Controller status indicator lights Reset switch Contro...

Page 63: ...ts the Heartbeat and seven others the seven others are lit in various patterns depending on the controller status 3 If the controller is offline all of the indicator lights will be lit This does not i...

Page 64: ...27 OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s Fault Amber light indicates a...

Page 65: ...icator1 Power supply Green On Off v Power supply has failed or is turned off v Overtemperature condition 1 Always use the storage management software to identify the failure Mini hub indicator lights...

Page 66: ...his fault light is always lit Bypass upper port Amber Off On v Upper mini hub port is bypassed v mini hub port or SFP module has failed or is loose v Fiber optic cables are damaged Note When there are...

Page 67: ...connected to it the loop good indicator light will be lit v Drive enclosure has failed drive side mini hub only Bypass lower port Amber Off On v Lower mini hub port is bypassed there are no devices c...

Page 68: ...On Problem status Off The storage management software causes the fan and communications module fault indicator and storage server fan indicator to light before the temperature has risen sufficiently t...

Page 69: ...before the DS4400 Storage Server The controllers might not recognize the correct configuration if the attached drives are powered up after the DS4400 Storage Server For instructions on powering up the...

Page 70: ...ve each component CRU before moving the DS4400 Storage Server to a new location or before removing the chassis from its rack cabinet This helps safeguard the equipment and ensures a smoother transitio...

Page 71: ...the DS4400 Storage Server For information about removing and replacing CRUs see Chapter 3 Replacing DS4400 Storage Server components on page 41 5 Remove the two screws from the inside rear of the DS4...

Page 72: ...o screws that you removed in Step 5 on the inside rear of the DS4400 Storage Server 9 Replace all CRUs in the DS4400 Storage Server 10 Connect the interface cables and host Fibre Channel cables that y...

Page 73: ...it down If it is necessary to set the device down place it in its static protective package Do not place the device on your system unit cover or on a metal table v Take additional care when handling d...

Page 74: ...n the storage management software v If cache mirroring is enabled in redundant controllers and one controller fails the second controller assumes processing functions without data loss However some or...

Page 75: ...Re set Po we r Fa ult He art be at Sta tus Re set Attention When you handle static sensitive devices take precautions to avoid damage from static electricity For details about handling static sensiti...

Page 76: ...ry installed All data stored in memory is preserved as long as the batteries can sustain power to the cache memory However the battery does not provide power to the rest of the system during a power o...

Page 77: ...battery backup system in working order Opening the battery CRU voids your warranty 1 Use the storage management software to disable caching Caching is disabled when the Fast write cache indicator ligh...

Page 78: ...ove the DS4400 Storage Server bezel as shown in Figure 21 on page 23 Attention Be careful when removing the battery The battery weighs approximately 6 4 kg 14 lb 3 Using Figure 36 on page 47 as a guid...

Page 79: ...batteries outside the United States go to http www ibm com ibm environment products batteryrecycle shtml or contact your local waste disposal facility If the battery CRU is physically damaged or leak...

Page 80: ...8 Replace the DS4400 Storage Server bezel as shown in Figure 22 on page 23 9 Run the system for at least 24 hours to properly charge the batteries The battery might take up to 15 minutes to complete...

Page 81: ...r lights provide overall system status information see Figure 41 on page 52 The dual fans in the storage server fan unit provide a redundant cooling system to both controller CRUs If one fan fails the...

Page 82: ...r fan and ends when you install the new one This does not include the time it takes to perform the entire procedure for example checking the indicator lights v When a storage server fan fails the faul...

Page 83: ...firmly on the bottom lip to remove the fan Pow er Fa ult Hea rtbe at Status Res et Pow er Fa ult Hea rtbe at Status Res et Storage server fan lever Attention When you handle static sensitive devices...

Page 84: ...ndicator light Replace the storage server fan with a spare if available Otherwise turn off the DS4400 Storage Server to prevent it from overheating until you can replace the fan 6 Replace the DS4400 S...

Page 85: ...400 Storage Server might have defective components or connections Check the storage management software for indications of other component failures Replacing a failed fan and communications module Whe...

Page 86: ...Push the new fan and communications module all the way into its chassis slot b Use a flat blade screwdriver to tighten the two captive screws on the new module securing it into place 5 Check the fan a...

Page 87: ...place a power supply because the two power supplies provide redundancy v Both power supplies have built in temperature sensors designed to prevent the power supplies from overheating If a temperature...

Page 88: ...2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s OUT IN 2 Gb s 1 Gb s Fault Amber light indicates a fault in the fan and communications module Normal status Off Problem status On Power supply Green light indicates...

Page 89: ...ower supply see Figure 44 on page 56 Statement 8 CAUTION Never remove the cover on a power supply or any part that has the following label attached Hazardous voltage current and energy levels are pres...

Page 90: ...ched nodes An SFP module slides into a mini hub port on the back of the DS4400 Storage Server and then a host or drive interface cable connects into the SFP module For more information see Fibre Chann...

Page 91: ...When laser products such as CD ROMs DVD drives fiber optic devices or transmitters are installed note the following v Do not remove the covers Removing the covers of the laser product could result in...

Page 92: ...atch v For SFP modules that contain plastic tabs unlock the SFP module latch by pulling the plastic tab outward 10 as shown in Figure 47 v For SFP modules that contain wire tabs unlock the SFP module...

Page 93: ...P modules that contain wire tabs grasp the wire latch and pull the SFP module out of the minihub port 5 Replace the protective cap on the SFP module 6 Unpack the new SFP module 7 Remove the protective...

Page 94: ...s operating properly the green loop good light is lit and the fault light is not lit If the mini hub port is in normal operation the amber port bypass light is not lit If a problem is indicated use th...

Page 95: ...d the loop good indicator light is off For more information about indicator lights see Mini hub indicator lights on page 33 v If you replace the mini hub and the SFP modules in them and still experien...

Page 96: ...FP modules into their static protective packages 4 Loosen the captive screw on the mini hub then grasp the screw and remove the mini hub from the chassis as shown in Figure 52 OU T IN 2 Gb s 1 Gb s OU...

Page 97: ...i hub ports 7 Replace the fiber optic cables that you removed in Step 1 on page 63 8 Check the indicator lights on the mini hub When the mini hub is operating properly the green loop good light is lit...

Page 98: ...66 IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 99: ...s v Tab Moves keyboard focus to the next component or to the first member of the next group of components v Shift Tab Moves keyboard focus to the previous component or to the first component in the pr...

Page 100: ...This behavior is the same for contiguous and non contiguous selection of drives End Page Down Move keyboard focus to the last item in the list Esc Close the current dialog does not require keyboard f...

Page 101: ...PLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties i...

Page 102: ...ers Important notes Processor speeds indicate the internal clock speed of the microprocessor other factors also affect application performance CD ROM drive speeds list the variable read rate Actual sp...

Page 103: ...a is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Properly shielded and grounded cables and connectors must be used in or...

Page 104: ...R 22 European Standard EN 55022 The Limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communicati...

Page 105: ...la Austria Belgium Benin Bulgaria Burkina Faso Burundi Cameroon Central African Rep Chad China Macau S A R Czech Republic Egypt Finland France French Guiana Germany Greece Guinea Hungary Iceland Indon...

Page 106: ...74 IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 107: ...standard for IBM compatibles It extends the XT bus architecture to 16 bits and also allows for bus mastering although only the first 16 MB of main memory are available for direct access agent A server...

Page 108: ...aceable unit customer replaceable unit CRU An assembly or part that a customer can replace in its entirety when any of its components fail Contrast with field replaceable unit FRU cyclic redundancy ch...

Page 109: ...hed to it The fabric is responsible for routing frames between source and destination N_ports using address information in the frame header A fabric can be as simple as a point to point channel betwee...

Page 110: ...ty in the storage partition topology that defines a logical collection of host computers that require shared access to one or more logical drives host port Ports that physically reside on the host ada...

Page 111: ...ace SCSI bus to distinguish among up to eight devices logical units with the same SCSI ID loop address The unique ID of a node in fibre channel loop topology sometimes referred to as a loop ID loop gr...

Page 112: ...e edited as part of configuring a drive into the kernel ODM See Object Data Manager out of band Transmission of management protocols outside of the fibre channel network typically over Ethernet partit...

Page 113: ...ing See also Global Mirroring Metro Mirroring ROM See read only memory router A computer that determines the path of network traffic flow The path selection is made from several paths based on informa...

Page 114: ...ombining servers storage products networking products software and services See also fabric Storage Array Identifier SAI or SA Identifier The Storage Array Identifier is the identification value used...

Page 115: ...eer connectivity functions for both local and wide area networks trap In the Simple Network Management Protocol SNMP a message sent by a managed node agent function to a management station to report a...

Page 116: ...84 IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 117: ...bre Channel connections 4 moving the 39 preparing to move 38 RAID controller 41 replacing components 41 DS4400 Storage Server continued turning power off 26 turning power on 24 DS4400 Storage Server l...

Page 118: ...ght 33 mini hub indicator light drive side 35 host side 34 35 mini hubs 41 drive side 3 host side 3 N notes important 70 notes servicing 42 44 notices 69 electronic emission 71 FCC Class A 71 used in...

Page 119: ...ights 27 storage server installation guide xviii T trademarks 70 turning on the power after 36 37 turning power off 26 turning power on 24 U United States electronic emission Class A notice 71 United...

Page 120: ...88 IBM TotalStorage DS4400 Fibre Channel Storage Server User s Guide...

Page 121: ...book is Very Satisfied Satisfied Neutral Dissatisfied Very Dissatisfied Accurate h h h h h Complete h h h h h Easy to find h h h h h Easy to understand h h h h h Well organized h h h h h Applicable t...

Page 122: ...pment Department GZW 9000 South Rita Road Tucson Arizona U S A 85744 0001 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...

Page 123: ......

Page 124: ...Printed in USA GC26 7730 00...

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