我在 ubuntu 14.04.1 服务器上有一个 5 x 3TB raidz1 阵列。上个月，其中一个驱动器坏了（发出咔嗒声）。我能够用 替换该驱动器zpool replace RAID <dead drive> <new drive>。这没有问题，池又恢复了在线和健康。然后另一个驱动器坏了。我尝试了同样的事情，但池卡在以下状态
# zpool status
pool: RAID
state: DEGRADED
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: http://zfsonlinux.org/msg/ZFS-8000-8A
scan: resilvered 29.1G in 6h3m with 1028 errors on Mon Jan 5 05:35:35 2015
config:
NAME STATE READ WRITE CKSUM
RAID DEGRADED 0 0 1.00K
raidz1-0 DEGRADED 0 0 2.01K
ata-ST3000DM001-9YN166_Z1F15FAV ONLINE 0 0 0
ata-ST3000DM001-9YN166_Z1F15FCJ ONLINE 0 0 0
replacing-2 DEGRADED 0 0 4
17164957131155215254 UNAVAIL 0 0 0 was /dev/disk/by-id/ata-ST3000DM001-9YN166_Z1F15TBH-part1
ata-ST3000DM001-1ER166_W500JFME ONLINE 0 0 0
ata-ST3000DM001-1ER166_Z500765Z ONLINE 0 0 3
ata-ST3000DM001-1CH166_W1F1M2C6 ONLINE 0 0 0
errors: 1028 data errors, use '-v' for a list
好消息是数据不是必需的。我并不担心错误（文件是视频，仍然可以正常播放）。我已尝试采取以下措施来解决这个问题，正如其他问题和论坛所建议的那样。
# zpool offline RAID ata-ST3000DM001-9YN166_Z1F15TBH
cannot offline ata-ST3000DM001-9YN166_Z1F15TBH: no valid replicas
# zpool offline RAID 17164957131155215254
cannot offline 17164957131155215254: no valid replicas
# zpool detach RAID ata-ST3000DM001-9YN166_Z1F15TBH
cannot detach ata-ST3000DM001-9YN166_Z1F15TBH: no valid replicas
# zpool detach RAID 17164957131155215254
cannot detach 17164957131155215254: no valid replicas
我还运行了触发重新zpool clear RAID同步zpool scrub但池仍处于与上述相同的状态的命令。然后我尝试移除新磁盘，但奇怪的是，出现了相同的无有效副本错误。
# zpool offline RAID ata-ST3000DM001-1ER166_W500JFME
cannot offline ata-ST3000DM001-1ER166_W500JFME: no valid replicas
我不知道该怎么做。看起来替换成功了，但是 zfs 不会放弃原始磁盘。
# dkms status -v
spl, 0.6.3, 3.13.0-43-generic, x86_64: installed
zfs, 0.6.3, 3.13.0-43-generic, x86_64: installed
更新：我删除了 zpool 缓存/etc/zfs/zpool.cache并重新启动。再次重新镀银，将报告结果。
更新 2：仍处于与上述相同的状态。如果没有办法完成替换，有没有办法重建池而不丢失任何数据？
更新 3：以下是最新状态：
# zpool status
pool: RAID
state: DEGRADED
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: http://zfsonlinux.org/msg/ZFS-8000-8A
scan: resilvered 29.1G in 6h1m with 1028 errors on Wed Jan 7 03:49:13 2015
config:
NAME STATE READ WRITE CKSUM
RAID DEGRADED 0 0 1.00K
raidz1-0 DEGRADED 0 0 2.01K
ata-ST3000DM001-9YN166_Z1F15FAV ONLINE 0 0 0
ata-ST3000DM001-9YN166_Z1F15FCJ ONLINE 0 0 1
replacing-2 DEGRADED 0 0 0
17164957131155215254 UNAVAIL 0 0 0 was /dev/disk/by-id/ata-ST3000DM001-9YN166_Z1F15TBH-part1
ata-ST3000DM001-1ER166_W500JFME ONLINE 0 0 0
ata-ST3000DM001-1ER166_Z500765Z ONLINE 0 0 0
ata-ST3000DM001-1CH166_W1F1M2C6 ONLINE 0 0 0
errors: 1028 data errors, use '-v' for a list
所有 5 个驱动器的 smartctl 数据是这里。
答案1
请尝试
zpool 脱机 zpool 分离
例如第一篇文章
zpool offline RAID 17164957131155215254 zpool detach RAID 17164957131155215254
答案2
我也有同样的状况：
NAME STATE READ WRITE CKSUM
RAIDZ0_01 DEGRADED 0 0 0
raidz1-0 DEGRADED 0 0 0
gptid/4fb5f83e-91b1-11e2-923c-000c292ee274 ONLINE 0 0 0
gptid/50402028-91b1-11e2-923c-000c292ee274 ONLINE 0 0 0
replacing-2 DEGRADED 0 0 0
2345526077585836973 UNAVAIL 0 0 0
was /dev/gptid/72973ce8-f3bf-11e2-9759-000c292ee274
gptid/19062bb3-c67f-11e4-8683-000c292ee274 ONLINE 0 0 0
gptid/d69abb6b-3cd2-11e4-873f-000c292ee274 ONLINE 0 0 0
gptid/51e62469-91b1-11e2-923c-000c292ee274 ONLINE 0 0 0
gptid/528221a4-91b1-11e2-923c-000c292ee274 ONLINE 0 0 0
gptid/53288697-91b1-11e2-923c-000c292ee274 ONLINE 0 0 36
gptid/c8d9e708-cc4a-11e3-99b3-000c292ee274 ONLINE 0 0 0
logs
gptid/ade4947f-e365-11e3-8230-000c292ee274 ONLINE 0 0 0
cache
gptid/f0017430-e364-11e3-8230-000c292ee274 ONLINE 0 0 0
errors: 802342 data errors, use '-v' for a list
除了您尝试过的方法之外，我还更新了 Freenas，但都无济于事。然而，就我而言，我被迫移除旧驱动器并用新驱动器物理替换它。我决定大胆一点，通过 Web GUI“分离”驱动器。这立即将池的状态从“降级”更改为“在线”。