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解决qnap的raid问题

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source link: https://www.bboy.app/2021/07/28/%E8%A7%A3%E5%86%B3qnap%E7%9A%84raid%E9%97%AE%E9%A2%98/
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解决qnap的raid问题

发表于

2021-07-28 分类于 linux

20210728093645.png

自从添加了告警之后发现qnap一直在说raid有问题，告警信息如下

RAID array 'md13' on 10.10.100.244 is in degraded state due to one or more disks failures. Number of spare drives is insufficient to fix issue automatically

也就是说raid降级了

首先看下qnap下面有几个raid

[/] # ls /dev/md*
/dev/md1  /dev/md13  /dev/md2  /dev/md256  /dev/md321  /dev/md322  /dev/md9

然后看了告警的两个raid状态，都是下面这个吊样

mdadm -D /dev/md13

/dev/md13:
        Version : 1.0
  Creation Time : Wed Jun 10 19:03:54 2020
     Raid Level : raid1
     Array Size : 458880 (448.20 MiB 469.89 MB)
  Used Dev Size : 458880 (448.20 MiB 469.89 MB)
   Raid Devices : 65
  Total Devices : 5
    Persistence : Superblock is persistent

Intent Bitmap : Internal

Update Time : Wed Jul 28 09:09:32 2021
          State : clean, degraded 
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
  Spare Devices : 0

Name : 13
           UUID : 1ae7f759:1ee7bdcd:388738a6:0f8e85fd
         Events : 109478

Number   Major   Minor   RaidDevice State
      65       8       52        0      active sync   /dev/sdd4
      69       8       68        1      active sync   /dev/sde4
      66       8        4        2      active sync   /dev/sda4
      67       8       20        3      active sync   /dev/sdb4
      68       8       36        4      active sync   /dev/sdc4
      10       0        0       10      removed
      12       0        0       12      removed
      14       0        0       14      removed
      16       0        0       16      removed
      18       0        0       18      removed
      20       0        0       20      removed
      22       0        0       22      removed
      24       0        0       24      removed
      26       0        0       26      removed
      28       0        0       28      removed
      30       0        0       30      removed
      32       0        0       32      removed

磁盘个数其实有65个，太多了我就不全部展示了

然后看下mdstat

cat /proc/mdstat 

md13 : active raid1 sdd4[65] sdc4[68] sdb4[67] sda4[66] sde4[69]
      458880 blocks super 1.0 [65/5] [UUUUU____________________________________________________________]
      bitmap: 1/1 pages [64KB], 65536KB chunk

没错emmm，这个时候只要把磁盘个数修改回来就好了

[/] # mdadm --grow /dev/md13 -n 5
raid_disks for /dev/md13 set to 5

之后就正常了

也不知道qnap是怎么搞的设置了一个65磁盘的raid

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