Question

我的某个vdev中的驱动器出现故障，将zpool的状态设置为降级： root @ mediaserver：〜＃zpool status pool：zfsraid 州：DEGRADED

所以我开始采取措施更换驱动器。

这是旧磁盘的id：wwn-0x5000cca225f459d5 这是替换磁盘的id：wwn-0x5000c5006e38bc61

1）离线旧磁盘：

 zpool offline zfsraid wwn-0x5000cca225f459d5

2）用新磁盘物理替换旧磁盘

3）问题替换命令：

 zpool replace -o ashift=12 zfsraid wwn-0x5000cca225f459d5 wwn-0x5000c5006e38bc61

replace命令失败，显示：

root@mediaserver:~# zpool replace -o ashift=12 zfsraid wwn-0x5000cca225f459d5 wwn-0x5000c5006e38bc61
**invalid vdev specification
use '-f' to override the following errors:
/dev/disk/by-id/wwn-0x5000c5006e38bc61 does not contain an EFI label but it may contain partition
information in the MBR.**

我似乎无法找到任何有用的信息。一些论坛说使用-f选项，但这看起来很粗略。新驱动器上没有列出分区

root@mediaserver:~# fdisk -l /dev/disk/by-id/wwn-0x5000c5006e38bc61

Disk /dev/disk/by-id/wwn-0x5000c5006e38bc61: 3000.6 GB, 3000592982016 bytes
255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Disk /dev/disk/by-id/wwn-0x5000c5006e38bc61 doesn't contain a valid partition table
root@mediaserver:~#

我是否必须运行一些命令来擦除新驱动器？

这是dmesg中与驱动器相关的最后几行：

[420274.400024] scsi 11:0:8:0: Direct-Access     ATA      ST3000DM001-1CH1 CC29 PQ: 0 ANSI: 6
[420274.400036] scsi 11:0:8:0: SATA: handle(0x000f), sas_addr(0x4433221107000000), phy(7), device_name(0x0000000000000000)
[420274.400039] scsi 11:0:8:0: SATA: enclosure_logical_id(0x5000000080000000), slot(4)
[420274.400130] scsi 11:0:8:0: atapi(n), ncq(y), asyn_notify(n), smart(y), fua(y), sw_preserve(y)
[420274.400134] scsi 11:0:8:0: qdepth(32), tagged(1), simple(0), ordered(0), scsi_level(7), cmd_que(1)
[420274.400502] sd 11:0:8:0: Attached scsi generic sg17 type 0
[420274.401375] sd 11:0:8:0: [sdr] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)
[420274.401377] sd 11:0:8:0: [sdr] 4096-byte physical blocks
[420274.475163] sd 11:0:8:0: [sdr] Write Protect is off
[420274.475166] sd 11:0:8:0: [sdr] Mode Sense: 7f 00 10 08
[420274.475966] sd 11:0:8:0: [sdr] Write cache: enabled, read cache: enabled, supports DPO and FUA
[420274.554649]  sdr: unknown partition table
[420274.646245] sd 11:0:8:0: [sdr] Attached SCSI disk

这是我正在运行的ubuntu的版本：

Ubuntu 12.04.3 LTS \n \l

root @ mediaserver：〜＃uname -a

Linux mediaserver 3.5.0-44-generic #67~precise1-Ubuntu SMP Wed Nov 13 16:16:57 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

Answer 1

@Matt，这里有更多细节。

TL; DR：

要使新驱动器可用于替换发生故障的驱动器，请使用 parted 和

mklabel GPT

Extended Dance Remix版本：

我有这个确切的问题并在今晚解决了。我在Linux（0.6.0-1）和3 x 1TB驱动器上使用Debian Squeeze（6.0.10）和zfs。

root@host:~# zpool status
  pool: dead_pool
 state: DEGRADED
status: One or more devices are faulted in response to persistent errors.
    Sufficient replicas exist for the pool to continue functioning in a
    degraded state.
action: Replace the faulted device, or use 'zpool clear' to mark the device
    repaired.
 scan: resilvered 6.09G in 3h10m with 0 errors on Tue Sep  1 11:15:24 2015
config:

NAME                                    STATE     READ WRITE CKSUM
dead_pool                               DEGRADED     0     0     0
  raidz1-0                              DEGRADED     0     0     0
    scsi-SATA_<orig_device_1>           ONLINE       0     0     0
    scsi-SATA_<orig_device_2>           ONLINE       0     0     0
    scsi-SATA_<orig_device_3>           FAULTED      0     3     0  too many errors

让人惊讶。我今天下午出去买了一个相同尺寸（不同品牌/型号）的新驱动器，关闭电源并将其安装在现有的三个zfs驱动器旁边。再次启动，我在系统启动时看到了旧驱动器上的大量I / O错误。可怕的东西。

用zfs中的new替换旧的：

旧磁盘ID：1784233895253655477（使用'zdb'找到）

新磁盘设备：/ dev / disk / by-id / scsi-SATA _

root@host:~# zpool offline dead_pool 1784233895253655477
root@host:~# zpool replace dead_pool 1784233895253655477 /dev/disk/by-id/scsi-SATA_<new_device_id>
invalid vdev specification
use '-f' to override the following errors:
/dev/disk/by-id/scsi-SATA_<new_device_id> does not contain an EFI label but it may contain partition
information in the MBR.

这是@Matt提出的问题。使用parted设置GPT（感谢systutorials.com）：

root@host:~# parted /dev/disk/by-id/scsi-SATA_<new_device_id>
GNU Parted 2.3
Using /dev/sde
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel GPT                                                      
(parted) q                                                                
Information: You may need to update /etc/fstab.

再次尝试替换：

root@host:~# zpool replace dead_pool 1784233895253655477 /dev/disk/by-id/scsi-SATA_<new_device_id>
root@host:~#

很棒，它成功回归。现在再次检查zpool：

root@host:~# zpool status
  pool: dead_pool
 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 Thu Sep  3 22:31:25 2015
    23.8G scanned out of 690G at 19.7M/s, 9h35m to go
    7.93G resilvered, 3.45% done
config:

    NAME                                    STATE     READ WRITE CKSUM
    dead_pool                               DEGRADED     0     0     0
      raidz1-0                              DEGRADED     0     0     0
        scsi-SATA_<orig_device_1>           ONLINE       0     0     0
        scsi-SATA_<orig_device_2>           ONLINE       0     0     0
        replacing-2                         OFFLINE      0     0     0
          scsi-SATA_<orig_device_3>         OFFLINE      0     0     0
          scsi-SATA_<new_device_id>         ONLINE       0     0     0  (resilvering)

希望这有帮助。

Answer 2

首先，重要的是通过发布

找出你有哪些ashift

 # zdb | grep ashift

如果它是ashift = 9，那么你将不得不用-o ashift = 9替换你的驱动器：

 zpool replace -o ashift=9 zfsraid wwn-0x5000cca225f459d5 wwn-0x5000c5006e38bc61

如果你的游泳池设置为ashift = 12，那么你输入的命令应该是正确的。确保你至少在linux v0.6.2上有zfs，它应该能够处理shift选项。

Answer 3

您需要在更换之前在驱动器上创建GPT分区表。

zpool replace错误与不包含EFI标签，但它可能包含分区

3 个答案: