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tango's questions

Martin Hope
tango
Asked: 2021-02-16 23:22:34 +0800 CST
  • 4

我有一个 zpool，在断电重新启动服务器和设备名称后，它现在显示为 FAULTED 状态。我知道我通过设备名称添加 vdev 搞砸了，但不知道它可以在创建和填充池后更改。目前，池正在寻找“/dev/sde”（而不是“/dev/sdc”），而“/dev/sde”是 root fs 所在的设备，我不确定如何在没有潜在风险的情况下进行任何恢复更糟糕。

希望有一种方法可以简单地将 zpool 重新配置为使用“sdc”，以便能够使用“by-id”命名导出和重新导入，以避免将来出现这种情况。

root@boxey:~# zpool status
  pool: data
 state: FAULTED
status: One or more devices could not be used because the label is missing
        or invalid.  There are insufficient replicas for the pool to continue
        functioning.
action: Destroy and re-create the pool from
        a backup source.
   see: http://zfsonlinux.org/msg/ZFS-8000-5E
  scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        data        UNAVAIL      0     0     0  insufficient replicas
          raidz1-0  UNAVAIL      0     0     0  insufficient replicas
            sda     ONLINE       0     0     0
            sde     UNAVAIL      0     0     0
            sdd     FAULTED      0     0     0  corrupted data
            sdb     FAULTED      0     0     0  corrupted data


root@boxey:~# lsblk --output=NAME,FSTYPE,LABEL,SIZE,UUID
NAME   FSTYPE     LABEL        SIZE UUID
sda                            2.7T
├─sda1 zfs_member data         2.7T 166412156792699288
└─sda9                           8M
sdb                            2.7T
├─sdb1 zfs_member data         2.7T 166412156792699288
└─sdb9                           8M
sdc                            2.7T
├─sdc1 zfs_member data         2.7T 166412156792699288
└─sdc9                           8M
sdd                            2.7T
├─sdd1 zfs_member data         2.7T 166412156792699288
└─sdd9                           8M
sde                           55.9G
├─sde1 ext4                   53.6G f2d9733a-846d-48c2-bb63-c7f4e0345ad5
├─sde2                           1K
└─sde5 swap                    2.3G 6c34cadd-db42-4e14-a647-733e021c018e

root@boxey:~# zpool export -f data
cannot export 'data': one or more devices is currently unavailable

root@boxey:~# zdb
data:
    version: 5000
    name: 'data'
    state: 0
    txg: 23300202
    pool_guid: 166412156792699288
    errata: 0
    hostid: 8323329
    hostname: 'boxey'
    com.delphix:has_per_vdev_zaps
    vdev_children: 1
    vdev_tree:
        type: 'root'
        id: 0
        guid: 166412156792699288
        children[0]:
            type: 'raidz'
            id: 0
            guid: 1294813595973345307
            nparity: 1
            metaslab_array: 34
            metaslab_shift: 36
            ashift: 12
            asize: 12002313371648
            is_log: 0
            create_txg: 4
            com.delphix:vdev_zap_top: 39
            children[0]:
                type: 'disk'
                id: 0
                guid: 4873892069497714664
                path: '/dev/sda1'
                whole_disk: 1
                DTL: 101
                create_txg: 4
                com.delphix:vdev_zap_leaf: 40
            children[1]:
                type: 'disk'
                id: 1
                guid: 16241503886070383904
                path: '/dev/sde1'
                whole_disk: 1
                DTL: 100
                create_txg: 4
                com.delphix:vdev_zap_leaf: 41
            children[2]:
                type: 'disk'
                id: 2
                guid: 1910545688695459106
                path: '/dev/sdd1'
                whole_disk: 1
                DTL: 99
                create_txg: 4
                com.delphix:vdev_zap_leaf: 42
            children[3]:
                type: 'disk'
                id: 3
                guid: 2766829802450425996
                path: '/dev/sdb1'
                whole_disk: 1
                DTL: 98
                create_txg: 4
                com.delphix:vdev_zap_leaf: 43
    features_for_read:
        com.delphix:hole_birth
        com.delphix:embedded_data
zfs zfsonlinux zpool