Ibm System Storage Subsystem DS5020 Manual do Utilizador Página 189
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Table 20. Symptom-to-FRU index (continued)
Problem
indicator Component Possible cause Possible solutions
Unable to access
drives
Drives and
Fibre Channel
loop
Incorrect storage
subsystem ID
settings
Make sure that the Fibre Channel
optical cables are undamaged
and properly connected. Check
the storage subsystem ID
settings.
Note: Change the switch
position only when your storage
subsystem is powered off.
RAID controller
failure
Replace one or both RAID
controllers. Contact an IBM
technical support representative.
Drive or drives
failed
Replace failed drive or drives.
Random errors Storage
subsystem
Midplane failure Have the midplane replaced.
Contact an IBM technical support
representative.
Hard disk drive is
not visible in RAID
management
software
Several CRUs Drive or drives
failed
Replace failed drive or drives.
Fibre Channel cable
failed
Replace Fibre Channel cable.
SFP failed Replace SFP.
RAID controller
failure
Replace RAID controller.
Midplane failure Have the midplane replaced.
Contact an IBM technical support
representative.
Drive CRU has
interface problem
with the ESM or
controller.
Replace the drive CRU.
Incorrect firmware
version
Verify that the DS5020 storage
subsystem has the correct
firmware version. Refer to
“Software and hardware
compatibility and upgrades” on
page 17.
A controller has
failed in addition to
the ESM failure in
the drive channel
that originates from
the functioning
controller.
Replace the failed controller and
ESM.
Chapter 6. Hardware maintenance 159
- First Edition (July 2009) 4
- Contents 5
- Contents v 7
- Contents vii 9
- © Copyright IBM Corp. 2009 ix 11
- © Copyright IBM Corp. 2009 xi 13
- Safety xv 17
- Safety xvii 19
- Cable Warning: 20
- About this document 21
- General overview 22
- About this document xxi 23
- About this document xxiii 25
- Before you call 26
- Using the documentation 26
- Web sites 27
- Software service and support 28
- Hardware service and support 28
- Fire suppression systems 29
- Chapter 1. Introduction 31
- Base DS5020 features 32
- Operating system support 33
- Fibre Channel defined 33
- SATA defined 33
- Inventory checklist 33
- Best practices guidelines 35
- Storage subsystem components 36
- Chapter 1. Introduction 7 37
- Controllers 38
- Chapter 1. Introduction 9 39
- Controller B 40
- Chapter 1. Introduction 11 41
- AC power supply and fan units 43
- Battery units 44
- Figure 7. Backup battery unit 45
- SFP modules 46
- Chapter 1. Introduction 17 47
- Determining firmware levels 48
- 44.70 cm (17.60 in.) 49
- 12.95 cm (5.1 in.) 49
- 57.15 cm (22.5 in.) 49
- 48.26 cm (19.00 in.) 49
- Shipping dimensions 50
- Temperature and humidity 50
- Altitude 51
- Airflow and heat dissipation 51
- Acoustic noise 52
- Electrical requirements 53
- Chapter 1. Introduction 25 55
- Installation overview 57
- Ser i al n u m b er 58
- Machine type 58
- Model number 58
- Preparing for installation 59
- Tools and hardware required 61
- Preparing the site 61
- Preparing the rack cabinet 62
- Installing the support rails 62
- Installing the DS5020 66
- Removing the CRUs 66
- Removing a controller 67
- Removing an E-DDM 69
- Front of Rack 71
- M5 screws 71
- M4 screws 71
- Replacing an E-DDM 74
- Enclosure ID settings 75
- Enclosure ID 76
- Handling fiber-optic cables 77
- Installing SFP modules 78
- Removing SFP modules 80
- Protective cap 83
- Fibre-optic 83
- Redundant drive channel pair 85
- Redundant 86
- Drive Channel 86
- Port 2, drive channel 1 100
- Port 1, drive channel 1 100
- Port 1, drive channel 2 100
- Port 2, drive channel 2 100
- Host portsController A 113
- Host ports Controller B 113
- Host 1, Host Adapter 1 and 2 114
- Host 2, Host Adapter 1 and 2 114
- Cabling the ac power supply 121
- © Copyright IBM Corp. 2009 93 123
- Web pages 124
- Hardware responsibilities 124
- Firmware updates 129
- Checking the LEDs 131
- Front LEDs 132
- Battery unit LEDs 133
- Controller LEDs 134
- Seven-segment 138
- Diagnostic 138
- Cache memory 146
- Subsystem cache battery 147
- Figure 74. Battery unit LEDs 149
- Replacing a controller 152
- Class 1 Laser Product 153
- Laser Klasse 1 153
- Laser Klass 1 153
- Luokan 1 Laserlaite 153
- Apparell Laser de Calsse 1À 153
- Pro t ect i ve cap 154
- SFP m o d u l e 154
- Plastic tab 154
- Guide pin 155
- Working with hot-swap E-DDMs 156
- Installing hot-swap E-DDMs 158
- Tr ay h a n d l e 159
- Tr ay l a t c h 159
- Replacing hot-swap E-DDMs 160
- Replacing multiple E-DDMs 161
- Two on = 4 Gbps 167
- One on = 2 Gbps 167
- Link Rat e sw it ch 168
- (2 Gbps or 4 Gbps) 168
- Replacing a battery unit 174
- Replacing an SFP module 176
- Replacing a midplane 179
- Front cage frame screws 180
- Sc r e w 181
- Sc r e w s 181
- General checkout 183
- Solving problems 183
- Parts listing 190
- Appendix A. Records 193
- Sample information record 195
- Installed device records 196
- Rack Mounting 199
- Template 199
- Rack specifications 203
- EIA Hole Spacing 205
- Appendix D. Power cords 209
- Appendix D. Power cords 181 211
- Appendix F. Accessibility 225
- Trademarks 227
- Important notes 228
- Particulate contamination 229
- Documentation format 229
- Notices 201 231
- Glossary 233
- Glossary 205 235
- Glossary 207 237
- Glossary 209 239
- Glossary 211 241
- Index 215 245
- Index 217 247
- Part Number: 49Y0289 250
- Printed in USA 250
- (1P) P/N: 49Y0289 250
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