I have a disk that needs to be maintained.  However, the reference is md8.  I'm pretty sure that's Disk 8 in my array based on what I get back from mount:

root@HunterNAS:/mnt# mount | column -t
proc                   on  /proc            type  proc       (rw)
sysfs                  on  /sys             type  sysfs      (rw)
tmpfs                  on  /var/log         type  tmpfs      (rw,size=128m,mode=0755,size=128m)
/dev/sda1              on  /boot            type  vfat       (rw,noatime,nodiratime,umask=0,shortname=mixed)
/mnt                   on  /mnt             type  none       (rw,bind)
nfsd                   on  /proc/fs/nfs     type  nfsd       (rw)
nfsd                   on  /proc/fs/nfsd    type  nfsd       (rw)
/dev/md1               on  /mnt/disk1       type  xfs        (rw,noatime,nodiratime)
/dev/md2               on  /mnt/disk2       type  xfs        (rw,noatime,nodiratime)
/dev/md3               on  /mnt/disk3       type  xfs        (rw,noatime,nodiratime)
/dev/md4               on  /mnt/disk4       type  xfs        (rw,noatime,nodiratime)
/dev/md5               on  /mnt/disk5       type  xfs        (rw,noatime,nodiratime)
/dev/md6               on  /mnt/disk6       type  xfs        (rw,noatime,nodiratime)
/dev/md7               on  /mnt/disk7       type  xfs        (rw,noatime,nodiratime)
/dev/md8               on  /mnt/disk8       type  xfs        (rw,noatime,nodiratime)
/dev/md9               on  /mnt/disk9       type  xfs        (rw,noatime,nodiratime)
/dev/md10              on  /mnt/disk10      type  xfs        (rw,noatime,nodiratime)
/dev/sde1              on  /mnt/cache       type  btrfs      (rw,noatime,nodiratime)
shfs                   on  /mnt/user0       type  fuse.shfs  (rw,nosuid,nodev,noatime,allow_other)
shfs                   on  /mnt/user        type  fuse.shfs  (rw,nosuid,nodev,noatime,allow_other)
/mnt/cache/docker.img  on  /var/lib/docker  type  btrfs      (rw)

 

Here's the error.  Am I translating correctly?  Is the Disk number and the MD# ALWAYS the same?

Apr 22 06:08:54 HunterNAS kernel: XFS (md8): Metadata corruption detected at xfs_dir3_data_reada_verify+0x73/0x76, xfs_dir3_data_reada block 0x857d390
Apr 22 06:08:54 HunterNAS kernel: XFS (md8): Unmount and run xfs_repair
Apr 22 06:08:54 HunterNAS kernel: XFS (md8): First 64 bytes of corrupted metadata buffer:
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76000: 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52  .PNG........IHDR
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76010: 00 00 00 10 00 00 00 10 08 06 00 00 00 1f f3 ff  ................
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76020: 61 00 00 02 dc 49 44 41 54 38 4f 75 52 df 4b 93  a....IDAT8OuR.K.
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76030: 51 18 7e be 1f fb be b9 b9 69 ce c9 c0 0d 62 93  Q.~......i....b.
Apr 22 06:08:54 HunterNAS kernel: XFS (md8): Metadata CRC error detected at xfs_dir3_block_read_verify+0xa1/0xa9, xfs_dir3_block block 0x857d390
Apr 22 06:08:54 HunterNAS kernel: XFS (md8): Unmount and run xfs_repair
Apr 22 06:08:54 HunterNAS kernel: XFS (md8): First 64 bytes of corrupted metadata buffer:
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76000: 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52  .PNG........IHDR
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76010: 00 00 00 10 00 00 00 10 08 06 00 00 00 1f f3 ff  ................
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76020: 61 00 00 02 dc 49 44 41 54 38 4f 75 52 df 4b 93  a....IDAT8OuR.K.
Apr 22 06:08:54 HunterNAS kernel: ffff880130f76030: 51 18 7e be 1f fb be b9 b9 69 ce c9 c0 0d 62 93  Q.~......i....b.
Apr 22 06:08:54 HunterNAS kernel: XFS (md8): metadata I/O error: block 0x857d390 ("xfs_trans_read_buf_map") error 74 numblks 8

 

 

Yes diskX always is the same as mdX

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Thanks!