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zfs 将线性转换为 raidz5 或重建

tag-icon • tag-icon zfs raid5 raidz
zfs 将线性转换为 raidz5 或重建

我可以将我的线性跨度转换为 raidz-5 吗？我终于有了足够的硬盘，而且真的不想因为要重新填充它们需要保存的备份数据而烦恼。

所以目前，我构建的命令不是 raid，而是使用 linear span

    $ zpool status
      pool: san
     state: ONLINE
    status: Some supported features are not enabled on the pool. The pool can
            still be used, but some features are unavailable.
    action: Enable all features using 'zpool upgrade'. Once this is done,
            the pool may no longer be accessible by software that does not support
            the features. See zpool-features(5) for details.
      scan: scrub repaired 0 in 7h28m with 0 errors on Sat Apr  2 02:58:32 2016
    config:

        NAME        STATE     READ WRITE CKSUM
        san         ONLINE       0     0     0
          sdd       ONLINE       0     0     0
          sdc       ONLINE       0     0     0
          sde       ONLINE       0     0     0

errors: No known data errors

我可以再添加 2tb，将所有这些直接转换为 raidz5，这样我的校验和和 crc 就会变得有价值，而不会擦除我的数据？

$ zfs list
NAME                                USED  AVAIL  REFER  MOUNTPOINT
san                                4.91T   371G  2.85M  /san

$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0   1.8T  0 disk
`-sda1   8:1    0   1.8T  0 part
sdb      8:16   0 232.9G  0 disk
|-sdb1   8:17   0  1007K  0 part
|-sdb2   8:18   0     4G  0 part [SWAP]
|-sdb3   8:19   0    20G  0 part /
|-sdb4   8:20   0 208.9G  0 part /home
`-sdb5   8:21   0   3.1M  0 part
sdc      8:32   0   1.8T  0 disk
|-sdc1   8:33   0   1.8T  0 part
`-sdc9   8:41   0     8M  0 part
sdd      8:48   0   1.8T  0 disk
|-sdd1   8:49   0   1.8T  0 part
`-sdd9   8:57   0     8M  0 part
sde      8:64   0   1.8T  0 disk
|-sde1   8:65   0   1.8T  0 part
`-sde9   8:73   0     8M  0 part

sda 是新来的。

答案1

不，除了添加驱动器来镜像现有集合（您需要三个）或使用对您来说最有意义的 ZFS 保护级别进行重建之外，您无法对现有资源做任何事情。

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