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Troubleshooting EVA4000 array connectivity 9–47
• There may have been a battery failure on the SFS20 array, causing the cache to be disabled.
See Section 8.1.12 for information about replacing a failed battery pack and cache on an SFS20
array.
9.28 Troubleshooting EVA4000 array connectivity
If you are encountering difficulties in accessing storage from an EVA4000 controller pair, make sure that
the presentations to your server are correct. The following three extracts from the
/var/log/messages log file show the typical messages you might see if the storage is correctly
connected to the server.
Example 9-1 shows a log entry of the type created when the drivers are loading.
Example 9-1 Drivers loading
Jul 29 11:44:12 down1 kernel: scsi0 : QLogic QLA2312 PCI to Fibre
Channel Host Adapter: bus 6 device 1 irq 24
Jul 29 11:44:12 down1 kernel: Firmware version: 3.03.18 IPX,
Driver version 8.01.03-fo
Jul 29 11:44:12 down1 kernel:
Jul 29 11:44:12 down1 kernel: scsi1 : QLogic QLA2312 PCI to Fibre
Channel Host Adapter: bus 6 device 1 irq 25
Jul 29 11:44:12 down1 kernel: Firmware version: 3.03.18 IPX,
Driver version 8.01.03-fo
Jul 29 11:44:12 down1 kernel:
Example 9-2 shows a log entry of the type created when the drivers recognize the EVA4000 controllers—
the scsi: unknown type 12 message is normal.
Example 9-2 Drivers recognize EVA4000 controllers
.
.
.
Jul 29 11:44:12 down1 kernel: Vendor: HP Model: HSV200 Rev: 5100
Jul 29 11:44:12 down1 kernel: Type: Unknown ANSI SCSI revision: 02
Jul 29 11:44:12 down1 kernel: Vendor: HP Model: HSV200 Rev: 5100
Jul 29 11:44:12 down1 kernel: Type: Direct-Access ANSI SCSI revision: 02
Jul 29 11:44:12 down1 kernel: Vendor: HP Model: HSV200 Rev: 5100
Jul 29 11:44:12 down1 kernel: Type: Direct-Access ANSI SCSI revision: 02
Jul 29 11:44:12 down1 kernel: scsi: unknown type 12
.
.
.
Jul 29 11:44:14 down1 kernel: scsi(0:0:0:0): Enabled tagged queuing, queue depth 16.
Jul 29 11:44:14 down1 kernel: scsi(0:0:0:1): Enabled tagged queuing, queue depth 16.
Jul 29 11:44:14 down1 kernel: scsi(0:0:0:3): Enabled tagged queuing, queue depth 16.
Jul 29 11:44:14 down1 kernel: scsi(1) qla2x00_isr MBA_PORT_UPDATE ignored
Jul 29 11:44:14 down1 kernel: scsi(1) qla2x00_isr MBA_PORT_UPDATE
.
.
.
Example 9-3 shows a log entry of the type created when the drivers recognize the disks.
Example 9-3 Drivers recognize EVA4000 controllers
.
.
.
Jul 29 11:44:15 down1 kernel: Attached scsi generic sg0 at scsi0,channel 0,id 0,lun
0,type 12
Jul 29 11:44:15 down1 kernel: Attached scsi disk sda at scsi0,channel 0,id 0,lun 1
Jul 29 11:44:15 down1 kernel: Attached scsi disk sdb at scsi0,channel 0,id 0,lun 3
.
.
.
Jul 29 11:44:16 down1 kernel: Attached scsi generic sg32 at scsi1,channel 0,id 0,lun
0,type 12
Jul 29 11:44:16 down1 kernel: Attached scsi disk sdi at scsi1,channel 0,id 0 lun 1
.
.
.
- 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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