Fixing degraded RAID 5 array on DNS-343

Seems like the firmware doesn’t recognized the replaced hard disk and the web interface still complains that the RAID 5 is degraded. Telnet into the DNS-343 and check the status of /dev/md0 (mdadm –detail /dev/md0). The RAID 5 is running on 3 disks and the 4th disk has not been added back into the RAID array.

Seems like /dev/sdd2 has not been added back to the array. Hot added the /dev/sdd2 (mdadm –add /dev/md0 /dev/sdd2) and viola! The RAID 5 array is complete again. The DNS-343 is happily syncing the data when checked (mdadm –detail /dev/md0).

2 thoughts on “Fixing degraded RAID 5 array on DNS-343

  • September 30, 2008 at 11:37 pm
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    Is this fix similar to there of the 323?

  • October 1, 2008 at 12:20 am
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    GaMerZ,

    Yeap, it is would apply for RAID 1 degraded issues on the DNS-323

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