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Noté. / 5. Basé sur avis des utilisateurs
Troubleshooting9–60
(For information on configuring email alerts, see Section 6.2.)
In the event of disk errors occurring, take action as described in the following sections:
• Disks showing the removed/failed state (Section 9.34.1)
• Disks showing the predict fail state (Section 9.34.2)
• Disks showing the logging errors state (Section 9.34.3)
9.34.1 Disks showing the removed/failed state
The following is an example of an alert generated when a disk shows the removed/failed state:
array 4: disk Y69BMY3E has been removed or failed (was online)
In such cases, you must replace the failed disk as soon as possible. See Section 8.1.10 for information on
replacing a disk in an SFS20 array.
9.34.2 Disks showing the predict fail state
The following is an example of an alert generated when a disk shows the predict fail state:
array 1: disk bay 12 disk P6C8CX7 SMART predicts failure (was online)
In such cases, you must replace the disk as soon as possible, because predict fail errors indicate that
a disk is on the verge of failure. See Section 8.1.10 for information on replacing a disk in an SFS20 array.
9.34.3 Disks showing the logging errors state
The following is an example of an alert generated when a disk shows the logging errors state:
array 3: disk bay 7: disk Y69BLLYE is logging errors (was online)
In such cases, it is normally not necessary to replace the disk (a disk should not be replaced unless it is
generating a large number of errors). You should, however, investigate the matter further, by entering the
hpls_cciss_info
command on a server attached to the array, using the following syntax:
hpls_cciss_info -E -D controller,port,0,drive_number
For example:
# hpls_cciss_info -E -D 1,1,0,134
Disk 1,1,0,134: logged 32 start 12
[4] type 1 scsi_op 40 sense 0x3 qual 0 sense_code 0x11 (6146 mins ago)
Medium Error: Unrecovered read error
[5] type 2 scsi_op 40 sense 0x0 qual 0 sense_code 0x0 (6146 mins ago)
[6] type 2 scsi_op 40 sense 0x0 qual 0 sense_code 0x0 (6146 mins ago)
[7] type 2 scsi_op 42 sense 0x0 qual 0 sense_code 0x0 (6146 mins ago)
[8] type 1 scsi_op 40 sense 0x3 qual 0 sense_code 0x11 (6146 mins ago)
Medium Error: Unrecovered read error
[9] type 2 scsi_op 40 sense 0x0 qual 0 sense_code 0x0 (6146 mins ago)
[10] type 2 scsi_op 40 sense 0x0 qual 0 sense_code 0x0 (6146 mins ago)
[11] type 2 scsi_op 42 sense 0x0 qual 0 sense_code 0x0 (6146 mins ago)
When you are examining the output from the hpls_cciss_info command, note the following points:
• The sense 0x0 errors are transient, and can be ignored.
• Although the Unrecovered read error (URE) messages are nontrivial, they are to be expected
on SATA drives; if the RAID functionality is operating normally on the array, the affected data is
reconstructed from the RAID parity stripe and rewritten.
Continue to monitor disks that are logging URE errors; if a particular disk (or disks) in an array is
frequently logging a lot (several hundred) of URE errors, the performance of the array may be
adversely affected.
- System User Guide 1
- Version 2.2 1
- Contents 3
- 4 Viewing system information 4
- A CLI commands 9
- About this guide 11
- HP SFS documentation 12
- Documentation conventions 12
- Naming conventions 13
- For more information 13
- Providing feedback 13
- Safety considerations 15
- 1Overview 17
- 1.1 Product overview 18
- 1.1.2 Overview of HP SFS 19
- 1.1.3 HP SFS configurations 20
- 1.1.3.2 Storage 21
- 1.1.3.3 Network connections 23
- 1.1.3.3.2 Management network 24
- 1.3 Supported hardware 25
- Overview1–10 26
- 2 The sfsmgr utility 27
- 2.1 Overview 28
- 2.2 Starting the SFS CLI 28
- 2.3 Running sfsmgr commands 29
- The sfsmgr utility2–6 32
- 3 Operating the system 33
- 3.1 Booting the system 34
- 3.2 Shutting down the system 36
- 3.3 Booting a server 36
- 3.4 Booting multiple servers 37
- 3.7 Stopping a file system 39
- 3.8 Starting a file system 40
- 3.11 Managing licenses 47
- 3.12 Managing remote access 53
- 3.12.3 Viewing authorizations 55
- 4Viewing system information 57
- 4.4 Viewing LUN information 67
- 4.5 Viewing array information 69
- 4.6 Viewing event logs 72
- 4.6.1.1 Event filters 73
- 4.6.1.2 Event severity 73
- 4.6.1.3 Event facility 73
- LUNs — EVA4000 storage 88
- File system name 100
- Mount point 100
- Stripe size 100
- MDS LUNs 100
- Number of OST services 101
- Interconnects 102
- Quota options 102
- Mount options 102
- Stripe count 102
- 5.4 Operating a file system 111
- 5.7 Managing quotas 121
- command on 123
- # lfs quotacheck -ug /data 124
- 5.7.3 Checking quota limits 125
- 5.10 Deleting file systems 127
- 6.1 Verifying the system 132
- Verifying the system 6–5 135
- # ssh south3-adm hostname 150
- Sequential test 151
- Parallel test 152
- Incremental test 152
- Latency test 157
- Unidirectional bandwidth test 158
- Verifying the system 6–33 163
- 6.2 Managing email alerts 169
- 6.2.4 Default email alerts 171
- Managing email alerts 6–43 173
- 6.2.5 Modifying email alerts 174
- 6.2.6 Creating email alerts 174
- 6.2.7 Viewing email alerts 175
- 6.2.9 Deleting email alerts 176
- 6.5 Removing log files 180
- 6.6.1 Overview 181
- 6.6.2 Viewing the IML 181
- 6.6.3 Clearing the IML 181
- Configuration impact 201
- Object Storage Server 202
- Number FCA2214 DC) 204
- [root@south4 var]# raw -qa 206
- 8.2 Upgrading firmware 214
- # service cluster stop 216
- 8.3.3 Adding SFS20 arrays 222
- 8.3.4 Removing SFS20 arrays 222
- 9Troubleshooting 225
- 9.2 Server fails to boot 227
- 9.3 Server stops responding 227
- /proc/fs/lustre/mds/mds2 247
- # repair-lfsck -f scratch 250
- Troubleshooting9–34 258
- Remedial action 261
- 9.27.2.1 Recreating files 262
- 9.30 Accessing consoles 275
- 9.31.1.2 Using a Web browser 276
- 9.32 Troubleshooting licenses 277
- 9.36 System log files 288
- ACLI commands 295
- A.1 General information 296
- A.2 accept license command 297
- A.3 activate ost command 297
- A.4 boot server command 297
- A.5 configure commands 298
- A.5.2 configure server 300
- A.6 create commands 301
- A.6.3 create authorization 302
- A.6.4 create database_backup 302
- A.6.5 create filesystem 303
- A.7 deactivate ost command 304
- A.8 delete commands 304
- A.8.2 delete array 305
- A.8.3 delete attribute 305
- A.8.4 delete authorization 305
- A.9 disable commands 306
- A.9.2 disable server 307
- A.10 enable commands 308
- A.11 help command 309
- A.12 kill command command 309
- A.13 modify commands 310
- Interactive mode 311
- Scripted mode 311
- A.14 monitor command command 312
- A.15 pause filesystem command 312
- A.16 quit command 313
- A.18 scan mac command 313
- A.19 set commands 314
- A.19.2 set attribute 315
- A.19.3 set lun 316
- A.19.4 set nics 317
- A.19.5 set password 318
- A.19.6 set server 318
- A.20 show commands 319
- A.20.4 show authorization 320
- A.20.5 show commands 320
- A.20.6 show database_backups 321
- A.20.7 show filesystem 321
- A.20.8 show license 321
- A.20.9 show log 321
- Examples 322
- A.20.10 show lun 323
- A.20.11 show network 323
- A.20.12 show ost 323
- A.20.13 show server 324
- A.20.14 show support 324
- A.20.15 show system 324
- A.20.16 show version 324
- A.21 shutdown server command 325
- A.22 start filesystem command 325
- A.23 stop filesystem command 326
- A.24 syscheck command 326
- A.26 ! command 328
- B Performance figures 329
- B.1 I/O performance 330
- SFS20 storage — 250GB disks 331
- SFS20 storage — 5000GB disks 331
- B.2 Network performance 332
- B.3 SFS20 array configuration 333
- RAID5 and ADG Read Bandwidth 334
- 64 clients 336
- 128 Clients 336
- 192 clients 336
- Bandwidth vs Clients 337
- Single Client Varying OSTs 338
- 1500 MTU Average Write MB/sec 339
- 9000 MTU Average Read MB/sec 340
- C.1 EVA4000 storage examples 344
- EVA4000 storage examples C–3 345
- C.2 SFS20 storage examples 346
- SFS20 storage examples C–5 347
- D.1 RAID rebuild information 350
- E HP SFS specifications 351
- HP SFS specificationsE–4 354
- Glossary 355
- Glossary–2 356
- Glossary–3 357
- Glossary–4 358
- 9-24, 9-25 361
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