zpool维护操作实例
1. zil设备损坏修复
参考此处进行zil设备的添加,后来HDTUNE测试该设备性能时损坏了数据
报错:
tank unavailable....FAULTED...
处理:
zpool clear tank c5t1d0s0 zpool status -x zpool remove tank c5t1d0s0 zpool remove tank c5t1d0s1 zpool status -v zpool list
2. 替换raidz3中的故障磁盘
- 替换zpool Raidz3 中坏掉的一个硬盘;
# offline 坏盘 zpool offline tank /dev/disk/by-id/ata-ST3000DM001-1ER166_Wxxxx # 替换新盘 zpool replace -f tank /dev/disk/by-id/ata-ST3000DM001-1ER166_W50144XH /dev/disk/by-id/ata-ST3000DM001-1ER166_W501Y62S # 在此查看状态,已经开始replacing了 zpool status -v
resilvering:
pool: tank state: DEGRADED status: One or more devices is currently being resilvered. The pool will continue to function, possibly in a degraded state. action: Wait for the resilver to complete. scan: resilver in progress since Wed Dec 6 17:41:22 2017 116G scanned out of 21.6T at 624M/s, 10h2m to go 4.74G resilvered, 0.53% done config: NAME STATE READ WRITE CKSUM tank DEGRADED 0 0 0 ... replacing-6 OFFLINE 0 0 0 14721783078452005034 OFFLINE 0 0 0 was /dev/disk/by-id/ata-ST3000DM001-1ER166_W50144XH-part1 ata-ST3000DM001-1ER166_Wxxxxx ONLINE 0 0 0 (resilvering) ... errors: No known data errors
resilvered:
pool: tank state: ONLINE scan: resilvered 903G in 6h45m with 0 errors on Thu Dec 7 00:26:50 2017 ...
某次换盘的时候,拔错盘了,造成很多文件损失,完成维护后,zpool status -v
一直有replacing的状态,处理:
zpool detach tank 8914685750264499217(old_disk)
3. 误拔磁盘
由于误拔了一块zpool的磁盘,导致zpool DEGRADE.
被误拔的磁盘状态变为UNAVAIL:
由于不是磁盘本身的故障而是误拔,所以不需要zpool replace:
zpool online tank ata-HGST_HUS726040ALE610_N8Gxxxx
online后的状态,显示磁盘已经scrub了一些数据:
4. 恢复已销毁的pool
可以使用 zpool import -D
命令恢复已销毁的pool:
# 误操作destroy了pool zpool destroy tank # 第一次执行,输出中state: ONLINE (DESTROYED),因此可以将池 tank 确定为已销毁的池: zpool import -D # 要恢复已销毁的池,请再次执行 zpool import -D 命令,并指定要恢复的池: zpool import -D tank
如果已销毁池中的某个设备出现故障或不可用,通过添加 -f
也许能够恢复已销毁的池。
在此情况下,请导入已降级的池,然后尝试修复设备故障。例如:
# 第一次执行导入,确认被destroy的pool zpool import -D # 强制导入降级的pool zpool import -Df dozer # 查看健康状态,有故障 zpool status -x .... state: DEGRADED ... ... c2t11d0 UNAVAIL 0 37 0 cannot open ... # 重新online故障设备 zpool online dozer c2t11d0 # 再次查看pool状态 zpool status -x
5. ref
- storage/zfs/zpool维护操作实例.txt
- 最后更改: 2019/09/19 20:54
- 由 mrco