Hp Array Controller HSG V8.7 Software Manuel d'utilisateur Page 93
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- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Creating Storagesets 3–15
Using RAIDsets to Increase Performance and Availability
RAIDsets are enhanced stripesets—they use striping to increase I/O
performance and distributed-parity data to ensure data availability.
Figure 3–7 illustrates the concept of RAIDsets and parity data.
Figure 3–7 Parity Ensures Availability; Striping Provides Good
Performance
Just as with stripesets, the I/O requests are broken into smaller
“chunks” and striped across the disk drives until the request is read or
written. But, in addition to the I/O data, chunks of parity data—derived
mathematically from the I/O data—are also striped across the disk
drives. This parity data enables the controller to reconstruct the I/O data
if a disk drive fails. Thus, it becomes possible to lose a disk drive
without losing access to the data it contained. (Data could be lost if a
second disk drive fails before the controller replaces the first failed disk
drive.)
For example, in a three-member RAIDset that contains disk drives
10000, 20000, and 30000, the first chunk of an I/O request is written to
10000, the second to 20000, then parity is calculated and written to
30000; the third chunk is written to 30000, the fourth to 10000, and so
on until all of the data is saved.
CXO5509A
I/O Request
Chunk 1
2
4
3
D
i
s
k
1
0
0
0
0
Chunk 1
4
D
i
s
k
2
0
0
0
0
2
Parity
for
3 & 4
D
i
s
k
3
0
0
0
0
Parity
for
1 & 2
3
- User’s Guide 1
- Chapter 4 Troubleshooting 6
- Appendix A System Profiles 8
- Appendix B CLI Commands 8
- Appendix C LED Codes 9
- Glossary 10
- Precautions 18
- Component Precaution 19
- Maintenance Port Precautions 19
- Conventions 20
- Special Notices 21
- Required Tools 22
- Related Publications 23
- Revision History 24
- General Description 25
- 1–2 HSG80 User’s Guide 26
- General Description 1–3 27
- Summary of HSG80 Features 28
- General Description 1–5 29
- 1–6 HSG80 User’s Guide 30
- The HSG80 Array Controller 31
- 1–8 HSG80 User’s Guide 32
- General Description 1–9 33
- 1–10 HSG80 User’s Guide 34
- General Description 1–11 35
- Small diameter 36
- Operator Control Panel 37
- Maintenance Port 38
- Utilities and Exercisers 38
- Virtual Terminal Display 39
- Disk Inline Exerciser 39
- Configuration Utility 39
- Clone Utility 40
- Field Replacement Utility 40
- Device Statistics Utility 41
- Cache Module 42
- General Description 1–19 43
- Caching Techniques 44
- Read Caching 44
- Read-Ahead Caching 44
- Write-Through Caching 45
- Write-Back Caching 45
- Nonvolatile Memory 45
- 1–22 HSG80 User’s Guide 46
- General Description 1–23 47
- 1–24 HSG80 User’s Guide 48
- General Description 1–25 49
- 1–26 HSG80 User’s Guide 50
- General Description 1–27 51
- External Cache Battery 52
- Charging Diagnostics 53
- Battery Hysteresis 53
- 1–30 HSG80 User’s Guide 54
- CHAPTER 2 55
- Introduction 56
- 2–4 HSG80 User’s Guide 58
- SET THIS_CONTROLLER CACHE_UPS 59
- RESTART THIS_CONTROLLER 59
- RESTART OTHER_CONTROLLER 59
- SHOW THIS_CONTROLLER FULL 59
- 2–6 HSG80 User’s Guide 60
- Maintenance 61
- 2–8 HSG80 User’s Guide 62
- Other controller 63
- This controller 63
- Selecting a Failover Mode 64
- Using Multiple-Bus Failover 65
- Selecting a Cache Mode 66
- Fault-Tolerance 66
- Backing up Power with a UPS 67
- 1 2 3 4 5 6 68
- 2–16 HSG80 User’s Guide 70
- 2–18 HSG80 User’s Guide 72
- Optical Support 73
- 2–20 HSG80 User’s Guide 74
- Creating Storagesets 79
- Disk drives 81
- 3–4 HSG80 User’s Guide 82
- Creating Storagesets 3–5 83
- Creating Storagesets 3–7 85
- Choosing a Storageset Type 86
- Creating Storagesets 3–9 87
- 3–10 HSG80 User’s Guide 88
- Creating Storagesets 3–11 89
- 3–12 HSG80 User’s Guide 90
- CXO5506A 91
- 3–14 HSG80 User’s Guide 92
- Creating Storagesets 3–15 93
- 3–16 HSG80 User’s Guide 94
- CXO5508A 95
- 3–18 HSG80 User’s Guide 96
- Cloning Data for Backup 97
- 3–20 HSG80 User’s Guide 98
- Creating Storagesets 3–21 99
- 3–22 HSG80 User’s Guide 100
- Creating Storagesets 3–23 101
- 3–24 HSG80 User’s Guide 102
- Creating Storagesets 3–25 103
- 3–26 HSG80 User’s Guide 104
- Creating Storagesets 3–27 105
- 3–28 HSG80 User’s Guide 106
- Assigning Unit Offsets 107
- Assigning Access Paths 108
- Creating Storagesets 3–31 109
- Creating a Storageset Map 110
- Creating Storagesets 3–33 111
- 3–34 HSG80 User’s Guide 112
- Creating Storagesets 3–35 113
- CXO6186A 114
- Planning Partitions 115
- 3–38 HSG80 User’s Guide 116
- Enabling Switches 117
- Changing Switches 117
- RAIDset Switches 118
- Membership 119
- Mirrorset Switches 120
- Read Source 121
- Device Switches 122
- Creating Storagesets 3–45 123
- Device Transfer Rate 124
- Initialize Switches 125
- 3–48 HSG80 User’s Guide 126
- Creating Storagesets 3–49 127
- Save Configuration 128
- Creating Storagesets 3–51 129
- Configurations 130
- Destroy/Nodestroy 130
- Creating Storagesets 3–53 131
- Unit Switches 132
- Adding Disk Drives 133
- Configuring a Stripeset 133
- Configuring a Mirrorset 134
- Configuring a RAIDset 135
- 3–58 HSG80 User’s Guide 136
- Creating Storagesets 3–59 137
- 3–60 HSG80 User’s Guide 138
- Creating Storagesets 3–61 139
- 3–62 HSG80 User’s Guide 140
- Creating Storagesets 3–63 141
- 3–64 HSG80 User’s Guide 142
- Enabling Autospare 143
- Deleting a Storageset 143
- 3–66 HSG80 User’s Guide 144
- Changing Device Switches 145
- Changing Initialize Switches 145
- Changing Unit Switches 145
- 3–68 HSG80 User’s Guide 146
- Finding the CCL Location 147
- SCSI-2 Mode 147
- SCSI-3 Mode 148
- Moving Storagesets 150
- Creating Storagesets 3–73 151
- 3–74 HSG80 User’s Guide 152
- Creating Storagesets 3–75 153
- Troubleshooting 155
- Troubleshooting Checklist 156
- Troubleshooting 4–3 157
- Troubleshooting Table 158
- Troubleshooting 4–5 159
- 4–6 HSG80 User’s Guide 160
- Troubleshooting 4–7 161
- 4–8 HSG80 User’s Guide 162
- Troubleshooting 4–9 163
- 4–10 HSG80 User’s Guide 164
- Troubleshooting 4–11 165
- 4–12 HSG80 User’s Guide 166
- Troubleshooting 4–13 167
- Significant Event Reporting 168
- Last Failure Reporting 169
- Spontaneous Event Log 170
- CLI Event Reporting 170
- Fault Management Utility 171
- Displaying Failure Entries 171
- Translating Event Codes 172
- Troubleshooting 4–19 173
- 4–20 HSG80 User’s Guide 174
- Troubleshooting 4–21 175
- 4–22 HSG80 User’s Guide 176
- Troubleshooting 4–23 177
- 4–24 HSG80 User’s Guide 178
- Troubleshooting 4–25 179
- 4–26 HSG80 User’s Guide 180
- Troubleshooting 4–27 181
- 4–28 HSG80 User’s Guide 182
- Troubleshooting 4–29 183
- 4–30 HSG80 User’s Guide 184
- Troubleshooting 4–31 185
- 4–32 HSG80 User’s Guide 186
- Troubleshooting 4–33 187
- 4–34 HSG80 User’s Guide 188
- Troubleshooting 4–35 189
- Tachyon Status 190
- Troubleshooting 4–37 191
- 4–38 HSG80 User’s Guide 192
- Troubleshooting 4–39 193
- 4–40 HSG80 User’s Guide 194
- DILX Error Codes 195
- 4–42 HSG80 User’s Guide 196
- Replacement Procedures 197
- 5–2 HSG80 User’s Guide 198
- Configuration 199
- Replacement Procedures 5–5 201
- 5–10 HSG80 User’s Guide 206
- Replacement Procedures 5–11 207
- 5–12 HSG80 User’s Guide 208
- Replacement Procedures 5–13 209
- 5–14 HSG80 User’s Guide 210
- 5–16 HSG80 User’s Guide 212
- Replacement Procedures 5–17 213
- Replacement Procedures 5–19 215
- 5–20 HSG80 User’s Guide 216
- Controller Configuration 217
- 5–22 HSG80 User’s Guide 218
- Replacement Procedures 5–23 219
- Replacement Procedures 5–25 221
- 5–26 HSG80 User’s Guide 222
- Building Block 223
- Powered On 224
- Powered Off 225
- 5–30 HSG80 User’s Guide 226
- Replacement Procedures 5–31 227
- Replacing a GLM 228
- Installing a GLM 229
- Replacing a PVA Module 230
- Replacement Procedures 5–35 231
- Enclosure 232
- Replacement Procedures 5–37 233
- 5–38 HSG80 User’s Guide 234
- Replacing an I/O Module 235
- 5–40 HSG80 User’s Guide 236
- Replacement Procedures 5–41 237
- Replacing DIMMs 238
- Removing DIMMs 239
- Installing DIMMs 240
- Remove a Fibre Cable or Hub 241
- Install a Fibre Cable or Hub 241
- Replacing a PCMCIA Card 242
- Installing the New Member 243
- Shutting Down the Subsystem 244
- Replacement Procedures 5–49 245
- Restarting the Subsystem 246
- Upgrading the Subsystem 247
- Upgrading Controller Software 248
- Downloading New Software 249
- 6–4 HSG80 User’s Guide 250
- Upgrading the Subsystem 6–5 251
- Installing a Software Patch 252
- Deleting a Software Patch 253
- 6–8 HSG80 User’s Guide 254
- Listing Software Patches 255
- 5. Enter option 0, Exit 256
- CXO5606A 257
- 6–12 HSG80 User’s Guide 258
- Upgrading the Subsystem 6–13 259
- HSUTIL Messages 260
- Upgrading the Subsystem 6–15 261
- 6–16 HSG80 User’s Guide 262
- Upgrading the Subsystem 6–17 263
- 6–18 HSG80 User’s Guide 264
- Upgrading the Subsystem 6–19 265
- Upgrading Cache Memory 266
- Upgrading the Subsystem 6–21 267
- 6–22 HSG80 User’s Guide 268
- System Profiles 269
- Device Profile 270
- Storageset Profile 271
- Enclosure Template 272
- CLI Commands 273
- CLI Overview 274
- Getting Help 275
- Entering CLI Commands 275
- Changing the CLI Prompt 276
- Command Syntax 277
- ADD CONNECTIONS 279
- Switches 280
- Examples 281
- See also 282
- ADD DISK 283
- ADD MIRRORSET 287
- B–16 HSG80 User’s Guide 288
- ADD RAIDSET 291
- B–20 HSG80 User’s Guide 292
- ADD SPARESET 295
- ADD STRIPESET 297
- ADD UNIT 299
- CLI Commands B–29 301
- B–30 HSG80 User’s Guide 302
- CLI Commands B–31 303
- B–32 HSG80 User’s Guide 304
- CLEAR_ERRORS CLI 307
- Parameters 309
- CONFIGURATION RESET 317
- CONFIGURATION RESTORE 319
- CONFIGURATION SAVE 321
- CREATE_PARTITION 323
- B–52 HSG80 User’s Guide 324
- DELETE connections 327
- DELETE container-name 329
- DELETE FAILEDSET 331
- DELETE SPARESET 333
- DELETE unit-number 335
- DESTROY_PARTITION 337
- DIRECTORY 339
- INITIALIZE 343
- CLI Commands B–73 345
- CLI Commands B–75 347
- B–80 HSG80 User’s Guide 352
- POWEROFF 355
- B–84 HSG80 User’s Guide 356
- CLI Commands B–85 357
- RESTART controller 363
- RETRY_ERRORS UNWRITEABLE_DATA 365
- Parameter 367
- B–96 HSG80 User’s Guide 368
- SELFTEST controller 371
- SET connection-name 373
- SET controller 375
- B–104 HSG80 User’s Guide 376
- CLI Commands B–105 377
- B–106 HSG80 User’s Guide 378
- CLI Commands B–107 379
- B–108 HSG80 User’s Guide 380
- SET device-name 383
- B–114 HSG80 User’s Guide 386
- SET FAILEDSET 389
- SET FAILOVER 391
- SET mirrorset-name 393
- B–122 HSG80 User’s Guide 394
- CLI Commands B–123 395
- SET MULTIBUS_FAILOVER 399
- SET NOFAILOVER 401
- SET NOMULTIBUS_FAILOVER 403
- SET RAIDset-name 405
- B–134 HSG80 User’s Guide 406
- SET unit-number 409
- B–138 HSG80 User’s Guide 410
- CLI Commands B–139 411
- B–140 HSG80 User’s Guide 412
- CLI Commands B–141 413
- B–144 HSG80 User’s Guide 416
- B–146 HSG80 User’s Guide 418
- CLI Commands B–147 419
- SHUTDOWN controller 421
- UNMIRROR 423
- LED Codes 425
- C–2 HSG80 User’s Guide 426
- Solid OCP Patterns 427
- C–4 HSG80 User’s Guide 428
- LED Codes C–5 429
- C–6 HSG80 User’s Guide 430
- LED Codes C–7 431
- Flashing OCP Patterns 432
- LED Codes C–9 433
- APPENDIX D 435
- D–2 HSG80 User’s Guide 436
- D–4 HSG80 User’s Guide 438
- CXO5314B 439
- D–6 HSG80 User’s Guide 440
- CXO6177A 441
- D–8 HSG80 User’s Guide 442
- CXO6179A 443
- D–10 HSG80 User’s Guide 444
- CXO6180A 445
- D–12 HSG80 User’s Guide 446
- CXO6182A 447
- D–14 HSG80 User’s Guide 448
- Response Format 449
- 01010302 450
- NR Threshold 451
- Repair Action 451
- Event Number 451
- Component ID 451
- D–18 HSG80 User’s Guide 452
- D–20 HSG80 User’s Guide 454
- D–22 HSG80 User’s Guide 456
- D–24 HSG80 User’s Guide 458
- D–26 HSG80 User’s Guide 460
- D–28 HSG80 User’s Guide 462
- D–30 HSG80 User’s Guide 464
- D–32 HSG80 User’s Guide 466
- D–34 HSG80 User’s Guide 468
- 01000102 470
- Restart Code 471
- Error Numbers 471
- Component IDs 472
- D–40 HSG80 User’s Guide 474
- D–42 HSG80 User’s Guide 476
- D–44 HSG80 User’s Guide 478
- D–46 HSG80 User’s Guide 480
- D–48 HSG80 User’s Guide 482
- D–50 HSG80 User’s Guide 484
- D–52 HSG80 User’s Guide 486
- D–54 HSG80 User’s Guide 488
- D–56 HSG80 User’s Guide 490
- D–58 HSG80 User’s Guide 492
- D–60 HSG80 User’s Guide 494
- D–62 HSG80 User’s Guide 496
- D–64 HSG80 User’s Guide 498
- D–66 HSG80 User’s Guide 500
- D–68 HSG80 User’s Guide 502
- D–70 HSG80 User’s Guide 504
- D–72 HSG80 User’s Guide 506
- D–74 HSG80 User’s Guide 508
- D–76 HSG80 User’s Guide 510
- D–78 HSG80 User’s Guide 512
- D–80 HSG80 User’s Guide 514
- Component Identifier Codes 516
- Event Threshold Codes 518
- ASC/ASCQ Codes 519
- D–86 HSG80 User’s Guide 520
- Controller Specifications 523
- E–2 HSG80 User’s Guide 524
- Environmental Specifications 525
- G–2 HSG80 User’s Guide 528
- Glossary G–3 529
- G–4 HSG80 User’s Guide 530
- Glossary G–5 531
- G–6 HSG80 User’s Guide 532
- Glossary G–7 533
- G–8 HSG80 User’s Guide 534
- Glossary G–9 535
- G–10 HSG80 User’s Guide 536
- Glossary G–11 537
- G–12 HSG80 User’s Guide 538
- Glossary G–13 539
- G–14 HSG80 User’s Guide 540
- Glossary G–15 541
- G–16 HSG80 User’s Guide 542
- Glossary G–17 543
- G–18 HSG80 User’s Guide 544
- Glossary G–19 545
- G–20 HSG80 User’s Guide 546
- Glossary G–21 547
- G–22 HSG80 User’s Guide 548
- I–2 HSG80 User’s Guide 550
- Index I–3 551
- I–4 HSG80 User’s Guide 552
- Index I–5 553
- I–6 HSG80 User’s Guide 554
- Index I–7 555
- I–8 HSG80 User’s Guide 556
- Index I–9 557
- I–10 HSG80 User’s Guide 558
- Index I–11 559
- I–12 HSG80 User’s Guide 560
- Index I–13 561
- I–14 HSG80 User’s Guide 562
- Index I–15 563
- I–16 HSG80 User’s Guide 564
- Index I–17 565
- I–18 HSG80 User’s Guide 566
- Index I–19 567
- I–20 HSG80 User’s Guide 568
- Index I–21 569
- I–22 HSG80 User’s Guide 570
- Index I–23 571
- I–24 HSG80 User’s Guide 572
- Index I–25 573
- I–26 HSG80 User’s Guide 574
- Index I–27 575
- I–28 HSG80 User’s Guide 576
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