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Question regarding Snapraid recovery scenario (alien.top)

submitted 1 year ago by RileyKennels@alien.top to c/datahoarder@selfhosted.forum

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A Snapraid user has six data disks and two levels of parity.

If a second data drive dies during the "snapraid fix" operation for the first failed drive, will the fix for the first failed drive continue without issue?

If the fix for the first drive completes without issue should the user then perform another "snapraid fix" operation for the second failed drive?

Or should the first fix operation be cancelled and a fix operation started for both drives at the same time? ex: "snapraid -d d1 -d d2 -l fix.log fix"?

Similarly, if one of the two parity drives fails during a sync operation, will the second parity drive allow the operation to complete successfully without any interaction from the user?

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[–] HTWingNut@alien.top 1 points 1 year ago

If a second data drive dies during the "snapraid fix" operation for the first failed drive, will the fix for the first failed drive continue without issue?

If a fix operation started and a disk failed, it will fail out and you will have to start over and fix both disks.

Similarly, if one of the two parity drives fails during a sync operation, will the second parity drive allow the operation to complete successfully without any interaction from the user?

No. It will fail out and you will have to rebuild the new parity.