zpool替換錯誤，但不包含EFI標籤，但它可能包含分區

Question

我的某個vdevs將zpool的狀態設置爲降級： root @ mediaserver：〜＃zpool狀態 pool：zfsraid state：DEGRADED

所以我開始採取措施更換驅動器。

這是舊盤的ID：WWN-0x5000cca225f459d5 這是更換磁盤的ID：WWN-0x5000c5006e38bc61

1）離線舊盤：

zpool offline zfsraid wwn-0x5000cca225f459d5 

2 ）用新磁盤物理替換舊磁盤

3）發佈替換命令：

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

替換命令失敗：

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.** 

我似乎無法找到任何信息，以幫助。幾個論壇說使用-f選項，但似乎粗略。新驅動器上沒有列出分區

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:~# 

我是否必須運行一些命令擦除新驅動器？

這些都是在dmesg的有關驅動器的最後幾行：

[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 

這是Ubuntu的版本我跑：

Ubuntu 12.04.3 LTS \n \l 

根@媒體服務器：〜＃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

首先，重要的是要知道，通過發行

# zdb | grep ashift 

如果ashift = 9，那麼你將不得不使用-o ashift更換硬盤= 9：

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

不過，若你有你的池設置爲ashift = 12，則您輸入的命令應該是正確的。確保至少在Linux v0.6.2上有zfs，它應該能夠處理shift選項。

Answer 2

您需要在更換之前在驅動器上創建一個GPT分區表。

Answer 3

@Matt，這裏有更多的細節。

TL; DR：

要使用新的驅動器來替換故障之一，使用分手和

mklabel GPT 

擴展舞蹈混音版本：

我有這個確切的問題，並在今晚解決它。我在Linux（0.6.0-1）和3個1TB驅動器上使用zfs，使用Debian Squeeze（6.0.10）。

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 

Y。我今天下午出去買了一個相同尺寸（不同型號/型號）的新驅動器，關閉電源並將其與三個現有zfs驅動器一起安裝。再次通電，當系統啓動時，我看到舊驅動器上的I/O錯誤氾濫。可怕的東西。

要在ZFS與新替換舊：

• 舊磁盤ID：1784233895253655477

• 新的磁盤設備（使用 'ZDB' 中）是：/ dev /磁盤/副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. 
  

這是@馬特的問題也發揮了作用。使用parted來建立一個GPT（感謝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. 

嘗試再次更換：

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

大它成功返回。現在再次檢查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) 

希望這有助於。