nas:build_a_linux_nas:support_recovering_from_a_faulty_disk
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NAS - Build a Linux NAS - Support recovering from a faulty disk
It is important to be able to cope with the failure of a faulty disk.
As the enclosure being used may not support hot-swapping and there may not be a separate light for each disk, there needs to be a way to determine which disk has failed and needs to be replaced.
Determine which disk has failed
mdadm --detail /dev/md0
Obtain the Serial Numbers of the Disks
hdparm -i /dev/sdd | grep SerialNo
returns:
Model=ST16000NM001G-2KK103, FwRev=SB30, SerialNo=WL2091XL
NOTE: Many disks also have the serial number written on the disk.
Replace the faulty disk
Steps are:
- Wait until the disks has finished rebuilding on the spare disk if any.
- Power the server down.
- Replace the faulty disk.
- Power the server up again.
- Partition the disks.
- Add the new disk to the array with:
mdadm --add /dev/md0 /dev/sdd1
nas/build_a_linux_nas/support_recovering_from_a_faulty_disk.1632602423.txt.gz · Last modified: 2021/09/25 20:40 by peter