Hp StorageWorks Scalable File Share Manuel d'utilisateur Page 263
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Noté. / 5. Basé sur avis des utilisateurs
Troubleshooting file system performance 9–39
2. Rename the new file to the original name using the mv command, as shown in the following example:
# mv data.new data.1
mv: overwrite ’data.1’? y
# lfs getstripe data.1
OBDS:
0: ost1_UUID
1: ost2_UUID
2: ost3_UUID
3: ost4_UUID
./data.1
obdidx objid objid group
0 1860 0x744 0
1 1856 0x740 0
2 1887 0x75f 0
3 1887 0x75f 0
#
9.27.3 Checking for unbalanced distribution of OST services
One possible cause of poor file system performance is that one or more of the servers that are serving the
file system may be running in failover mode—that is, a server has failed and its services are being served
from the other server in the server pair.
To determine whether this is the case, enter the following command:
sfs> show filesystem scratch
Name: scratch
OSTs: ost[5-8]
State: started
Mountpoint: /mnt/scratch/
Stripe size: 4194304
Stripe count: 4
Interconnect: gm tcp
MDS mount options: acl,user_xattr
OST mount options: extents
Lustre timeout: 200
Quota options: quotaon=ug
MDS Information:
Name LUN Array Controller Files Used Service State Running on
----- --- ----- ---------- -------- ---- ------------- ----------
mds4 2 1 B 2.3M 20% running south2
OST Information:
Name LUN Array Controller Size(GB) Used Service State Running on
----- --- ----- ---------- -------- ---- ------------- ----------
ost5 13 3 A 290 30% running south4!
ost6 14 3 B 290 31% running south4!
ost7 17 4 A 290 29% running south4
ost8 18 4 B 290 30% running south4
(servers marked ! are not preferred server)
In this example, all four OST services are running on one Object Storage Server (south4). The exclamation
mark (!) indicates that services ost5 and ost6 are not running on their preferred server. Use the show
server server_name command to determine the peer server for server south4, as follows:
sfs> show server south4
Name: south4
Primary Role: ost
Backup Server: south3
.
.
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- 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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