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Sam Martin
Asked: 2017-03-12 02:09:05 +0800 CST

重新启动后两个池中的 ZFS 磁盘？

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我对 ZFS 很陌生，所以也许我读错了。
重新启动我的服务器后，我不得不重新导入我的池，并且在执行某些操作时出现了这种状态：

# zpool status -v
  pool: data
 state: DEGRADED
status: One or more devices could not be used because the label is missing or
        invalid.  Sufficient replicas exist for the pool to continue
        functioning in a degraded state.
action: Replace the device using 'zpool replace'.
   see: http://zfsonlinux.org/msg/ZFS-8000-4J
  scan: scrub in progress since Sat Mar 11 09:54:23 2017
    18.4M scanned out of 28.9T at 4.61M/s, (scan is slow, no estimated time)
    0 repaired, 0.00% done
config:

        NAME                     STATE     READ WRITE CKSUM
        data                     DEGRADED     0     0     0
          raidz1-0               DEGRADED     0     0     0
            sdd                  ONLINE       0     0     0
            5824186382562856058  FAULTED      0     0     0  was /dev/sdb1
            sde                  ONLINE       0     0     0
          raidz1-1               ONLINE       0     0     0
            sdj                  ONLINE       0     0     0
            sdk                  ONLINE       0     0     0
            sdl                  ONLINE       0     0     0
          raidz1-2               ONLINE       0     0     0
            sdg                  ONLINE       0     0     0
            sdb                  ONLINE       0     0     0
            sdf                  ONLINE       0     0     0
          raidz1-3               ONLINE       0     0     0
            sdc                  ONLINE       0     0     0
            sdh                  ONLINE       0     0     0
            sdi                  ONLINE       0     0     0

引起我注意的是in的FAULTED音量raidz1-0，但我没有注意到它是 /dev/sdb，但/dev/sdb目前正在使用raidz1-2！

因此，我正式导出了池，强制打开 labelclear/dev/sdb并呈现以下状态：

# zpool status
  pool: data
 state: ONLINE
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 Sat Mar 11 10:01:16 2017
    6.16G scanned out of 28.9T at 263M/s, 32h3m to go
    2.02G resilvered, 0.02% done
config:

        NAME                       STATE     READ WRITE CKSUM
        data                       ONLINE       0     0     0
          raidz1-0                 ONLINE       0     0     0
            sdd                    ONLINE       0     0     0
            replacing-1            UNAVAIL      0     0     0
              5824186382562856058  UNAVAIL      0     0     0  was /dev/sdb1/old
              sdb1                 ONLINE       0     0     0  (resilvering)
            sde                    ONLINE       0     0     0
          raidz1-1                 ONLINE       0     0     0
            sdj                    ONLINE       0     0     0
            sdk                    ONLINE       0     0     0
            sdl                    ONLINE       0     0     0
          raidz1-2                 ONLINE       0     0     0
            sdg                    ONLINE       0     0     0
            16211591403717513484   UNAVAIL      0     0     0  was /dev/sdb1
            sdf                    ONLINE       0     0     0
          raidz1-3                 ONLINE       0     0     0
            sdc                    ONLINE       0     0     0
            sdh                    ONLINE       0     0     0
            sdi                    ONLINE       0     0     0

我有两个问题

  1. 这怎么发生的
  2. 大概这意味着我在某处丢失了磁盘？识别它的最佳方法是什么？

附加信息：这个服务器+启动应该有12个数据盘，但是blkid只有11个。

# blkid
/dev/sda1: UUID="43AB-B900" TYPE="vfat" PARTUUID="70dbeb11-8d0f-4a90-892b-71ddbfa40614"
/dev/sda2: UUID="31b78e1e-47d2-4835-84f3-52526382626e" TYPE="ext2" PARTUUID="d4385b72-1d3b-4f10-b7be-a47240d0a875"
/dev/sda3: UUID="BW2exB-GVBK-2kYB-O6I3-0Xff-tZsT-1wR3eT" TYPE="LVM2_member" PARTUUID="8298e710-3c27-45f8-bde2-0ca014f61560"
/dev/sdc1: LABEL="data" UUID="1497224562158568852" UUID_SUB="8549439230979948204" TYPE="zfs_member" PARTLABEL="zfs-d160a62f672223cd" PARTUUID="9a5815bb-0c8c-4147-81f7-3c2ed819c856"
/dev/sdd1: LABEL="data" UUID="1497224562158568852" UUID_SUB="8670871889276024405" TYPE="zfs_member" PARTLABEL="zfs-056f7c2c0a7e1d0a" PARTUUID="672f59c7-b6b3-604b-8afd-594bd3b9b5f8"
/dev/sde1: LABEL="data" UUID="1497224562158568852" UUID_SUB="6213246766257863816" TYPE="zfs_member" PARTLABEL="zfs-65908045daba9599" PARTUUID="04785f97-1125-7642-b5c1-9c1a16cda925"
/dev/sdf1: LABEL="data" UUID="1497224562158568852" UUID_SUB="8276492610986556289" TYPE="zfs_member" PARTLABEL="zfs-f8318dd36075cff4" PARTUUID="5d7feebf-8a5f-654b-b2d1-c15691800f44"
/dev/sdh1: LABEL="data" UUID="1497224562158568852" UUID_SUB="1281571628149249275" TYPE="zfs_member" PARTLABEL="zfs-59cc747b1125d66a" PARTUUID="61c60d91-9a85-3b4d-9b99-8df071434a50"
/dev/sdg1: LABEL="data" UUID="1497224562158568852" UUID_SUB="10881622467137806147" TYPE="zfs_member" PARTLABEL="zfs-1a80f12f1e668bbe" PARTUUID="208107b9-ad5f-184c-9178-5db0ebf19a14"
/dev/sdi1: LABEL="data" UUID="1497224562158568852" UUID_SUB="17007441084616526595" TYPE="zfs_member" PARTLABEL="zfs-0a8e6dabd469faca" PARTUUID="e8ed04a8-cde2-6244-902e-6353664af06a"
/dev/sdj1: LABEL="data" UUID="1497224562158568852" UUID_SUB="8620535390437895467" TYPE="zfs_member" PARTLABEL="zfs-97d91e998134d363" PARTUUID="a689a2ff-3b07-ef41-8b9c-cf6361a0e1d1"
/dev/sdk1: LABEL="data" UUID="1497224562158568852" UUID_SUB="17779182602415489900" TYPE="zfs_member" PARTLABEL="zfs-52c3d94733668a22" PARTUUID="42a8072a-e94c-a64d-aa07-dee30f675655"
/dev/sdl1: LABEL="data" UUID="1497224562158568852" UUID_SUB="7227713853040895948" TYPE="zfs_member" PARTLABEL="zfs-cc1406096601d13c" PARTUUID="5481683e-1d8b-4342-9629-3c49f6397075"
/dev/mapper/server--vg-root: UUID="1e3fee5d-d4c8-4971-ae32-23722bbd0688" TYPE="ext4"
/dev/mapper/server--vg-swap_1: UUID="6447b120-e79d-4c9f-8cc6-8eef5e275dfc" TYPE="swap"
/dev/sdb1: LABEL="data" UUID="1497224562158568852" UUID_SUB="16704776748125199400" TYPE="zfs_member" PARTLABEL="zfs-368140a1f4980990" PARTUUID="c131befd-a122-aa45-b710-399233eb08a6"
/dev/sdb9: PARTUUID="4aaed8f3-443e-2e44-8737-94a4d09496aa"
/dev/sdc9: PARTUUID="5f2cb2dd-dddd-154f-a771-8db4f5475fec"
/dev/sdd9: PARTUUID="22968880-24bb-d94a-a50f-13adaaa380bc"
/dev/sde9: PARTUUID="b867fa3f-bda4-cf40-b44c-c76bad4047be"
/dev/sdf9: PARTUUID="b4f79585-6676-de40-81ea-44cf74937b28"
/dev/sdh9: PARTUUID="77f5225f-e0e5-4d4f-8361-d13984807960"
/dev/sdg9: PARTUUID="be9746bc-1eb5-9342-b753-3471ae936d42"
/dev/sdi9: PARTUUID="08675893-d6d3-0b49-bf69-105383040006"
/dev/sdj9: PARTUUID="107df9dc-7ea8-694a-8deb-7a6025b74b86"
/dev/sdk9: PARTUUID="2b2ef8de-da71-a740-aad0-bd2dc1d1c8a7"
/dev/sdl9: PARTUUID="f52efda2-f758-2f47-80ff-318be5db3fca"
linux zfs zpool

1 个回答

  1. Best Answer

    好吧，你丢失了一个磁盘，它是raidz1-0. /dev/sd[a-m]正如迈克尔·汉普顿（Michael Hampton）已经提到 的那样，重新启动后，设备被重新命名。

    ZFS 足够聪明，不依赖于/dev/sdx名称，并且可以根据磁盘元数据将池放在一起。此时raidz1-0，由于驱动器故障，您已降级，这曾经是/dev/sdb您重新启动服务器之前的情况。重新启动后，故障磁盘导致重命名磁盘并且所属的磁盘raidz1-2变为/dev/sdb. 由于 ZFS 足够聪明，它不在乎，只是将池正确地放在一起。
    此时，您应该更换故障磁盘并重新同步raidz1-0池。相反，您通过删除健康磁盘来
    降低您的第二个池，该磁盘真正属于并将其添加到导致重新同步。raidz1-2/dev/sdbraidz1-2raidz1-0

    您应该更换故障磁盘并开始重新同步raidz1-2。重新启动后，磁盘很可能会再次重命名。

    要识别故障磁盘，请在所有磁盘或卷上进行通信，并查看当您在服务器前面时哪个磁盘 LED 不闪烁。不要忘记在您的根分区磁盘上进行流量。
    一些硬件供应商确实有工具或提供了一种更优雅的方法来识别故障磁盘所在的插槽。

    • 5

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