Drivepool Balance, Now Missing Files, how to Restore (w/SnapRAID)?

[murphdogg]

I’m using SnapRAID with Drivepool and recently did a rebalance as I realized I didn't leave enough space % in the "Prevent Drive Overfill" Balancer. Everything seemed to move correctly, and the drives were now balanced as I wanted. I ran the SnapRAID "sync" command and thought I was good to go. A few weeks later, I see that over a hundred files are missing including complete folders.

I ran the SnapRAID "diff" command and see 175 removed differences- these are the missing files which are apparently still a part of the parity. What is the best way to restore these files and folders? Does "fix -m" simply solve my problem, or will it attempt to restore directly to the drives the files and folders were previously on? If so, does that cause a conflict with the Drivepool balance settings as I know if those files and folders are restored to the previous drives, it will be over the balance limit.

Any help is greatly appreciated!

[Shane]

(disclaimer: I'm very much an amateur at SnapRAID)

As I understand it the "sync" command should have updated the parity record so the "diff" afterwards should only be showing differences since that "sync". So that should mean the missing files/folders went missing after the sync?

The "fix -m" is supposed to restore any files deleted since the last sync, I think it would try to restore to the drives those files were deleted from. So depending on your balancer settings DrivePool may warn and/or try to rebalance afterwards.

[murphdogg]

Correct on the "sync" command.  My situation doesn't make sense though as I specifically remember doing sync after the balancing.  Even if I didn't, it still doesn't make sense that the files disappeared because I definitely didn't delete them.  At any rate, I guess I'm lucky that the SnapRAID parity is recognizing the missing files.

I think what you mentioned is my best (and maybe only) option: run the "fix -m", hope/check everything is restored, let Drivepool balance it out, then sync.