2021年6月5日| 李 源|
ZFS命令学习
建立删除卷
| 1 2 3 4 5 6 | [root@cahesi ~] zpool create testzpool raidz -f vda vdb[root@cahesi ~]# zpool list
NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
testzpool 59.5G 128K 59.5G - 0% 0% 1.00x ONLINE -
[root@cahesi ~] zfs destroy testzpool
|
追加硬盘
| 1 2 3 4 5 | [root@cahesi ~]# zpool add testzpool vdc -f[root@cahesi ~]#
[root@cahesi ~]# zpool list
NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
testzpool 89.2G 200K 89.2G - 0% 0% 1.00x ONLINE -
|
看目前池状态
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | [root@cahesi ~]# zpool status pool: testzpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
testzpool ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
vda ONLINE 0 0 0
vdb ONLINE 0 0 0
vdc ONLINE 0 0 0
errors: No known data errors
|
查看健康状况
| 1 2 3 4 5 6 7 8 9 10 11 | [root@cahesi ~]# zpool status -xall pools are healthy
[root@cahesi ~]# zpool list -o name,size
NAME SIZE
testzpool 89.2G
[root@cahesi ~]# zfs list -o name,sharenfs,mountpoint
NAME SHARENFS MOUNTPOINT
testzpool off /testzpool
|
查看存储迟IO情况
| 1 2 3 4 5 | [root@cahesi ~]# zpool iostat capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
testzpool 128K 59.5G 0 0 0 68
|
每2秒中显示一次tank迟IO情况
| 1 | [root@cahesi ~]# zpool iostat testzpool 2 |
显示虚拟设备IO情况
| 1 2 3 4 5 6 7 8 | [root@cahesi ~]# zpool iostat -v capacity operations bandwidth
pool used avail read write read write
---------- ----- ----- ----- ----- ----- -----
tank 30.2M 149M 0 1 387 47.0K
c2t0d0 16.1M 73.4M 0 2 654 111K
c2t1d0 14.1M 75.4M 0 0 253 23.6K
---------- ----- ----- ----- ----- ----- -----
|
每两秒显示虚拟设备IO情况
| 1 | [root@cahesi ~]# zpool iostat -v 2 |
消除设备错误计数
迁移ZFS存储池
导出池
| 1 | [root@cahesi ~]# zpool export tank |
查看池
| 1 2 3 4 5 6 7 8 9 10 11 | [root@cahesi ~]# zpool import pool: testzpool
id: 12510319395011747835
state: ONLINE
action: The pool can be imported using its name or numeric identifier.
config:
testzpool ONLINE
raidz1-0 ONLINE
vda ONLINE
vdb ONLINE
|
导入池
| 1 2 | [root@cahesi ~]# zpool import testzpool（如果池名与目前有冲突可以使用新命名来导入如：zpool import tank tanker）
|
查看ZFS自动安装点属性
| 1 2 3 | [root@cahesi ~]# zfs get mountpoint testzpoolNAME PROPERTY VALUE SOURCE
testzpool mountpoint /testzpool default
|
查看是否自动安装上
| 1 2 3 | [root@cahesi ~]# zfs get mounted testzpoolNAME PROPERTY VALUE SOURCE
testzpool mounted yes -
|
手工改变安装点
| 1 2 3 4 5 6 7 8 | [root@cahesi ~]# zfs set mountpoint=/cahesi testzpool[root@cahesi ~]# zfs get mountpoint testzpool
NAME PROPERTY VALUE SOURCE
testzpool mountpoint /cahesi local
mountpoint 属性更改时，文件系统将自动从旧挂载点取消挂载，并重新挂载到新挂载点。根据需要，可
创建挂载点目录。如果ZFS 由于处于活动状态而无法取消挂载文件系统，则会报告错误，并需要强制进行
手动取消挂载。
|
显示当前挂接ZFS的情况
| 1 | [root@cahesi ~]# zfs mount |
恢复已删除的池
删除池
| 1 2 3 | [root@cahesi ~]# zpool destroy testzpool[root@cahesi ~]# zpool list
no pools available
|
zpool import已经无法发现tank池（使用-D参数可看到已经删除的池）
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | [root@cahesi ~]# zpool importno pools available to import
[root@cahesi ~]# zpool import -D
pool: testzpool
id: 12510319395011747835
state: FAULTED (DESTROYED)
status: The pool metadata is corrupted.
action: The pool cannot be imported due to damaged devices or data.
The pool was destroyed, but can be imported using the '-Df' flags.
see: http://zfsonlinux.org/msg/ZFS-8000-72
config:
testzpool FAULTED corrupted data
vdc ONLINE
pool: testzpool
id: 16891872618171120764
state: ONLINE (DESTROYED)
action: The pool can be imported using its name or numeric identifier.
config:
testzpool ONLINE
raidz1-0 ONLINE
vda ONLINE
vdb ONLINE
|
如果有重名pool 则需要根据id来删除。
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | [root@cahesi ~]# zpool import -Df testzpoolcannot import 'testzpool': more than one matching pool
import by numeric ID instead
[root@cahesi ~]# zpool import -Df 16891872618171120764
[root@cahesi ~]# zpool import -D
pool: testzpool
id: 12510319395011747835
state: FAULTED (DESTROYED)
status: The pool metadata is corrupted.
action: The pool cannot be imported due to damaged devices or data.
The pool was destroyed, but can be imported using the '-Df' flags.
see: http://zfsonlinux.org/msg/ZFS-8000-72
config:
testzpool FAULTED corrupted data
vdc ONLINE
|
给已存在的zpool增加cache 盘
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | [root@cahesi /]# zpool status pool: testzpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
testzpool ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
vda ONLINE 0 0 0
vdb ONLINE 0 0 0
errors: No known data errors
[root@cahesi /]# zpool add testzpool cache vdc
[root@cahesi /]# zpool status
pool: testzpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
testzpool ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
vda ONLINE 0 0 0
vdb ONLINE 0 0 0
cache
vdc ONLINE 0 0 0
errors: No known data errors
|
