Getting a hold of ReadyNAS support

SandsharkI did the scrub, and it didn't seem to find any errors. I followed it up with a balance and a defrag, and those seemed to run very quickly.

Aug 01, 2023 07:36:54 PM Volume: Defragmentation complete for volume Data.
Aug 01, 2023 06:35:11 PM Volume: Defragmentation started for volume Data.
Aug 01, 2023 06:34:41 PM Volume: Balance complete for volume Data.
Aug 01, 2023 06:34:40 PM Volume: Balance started for volume Data.
Aug 01, 2023 06:33:49 PM Volume: Balance complete for volume Data.
Aug 01, 2023 06:33:47 PM Volume: Balance started for volume Data.
Aug 01, 2023 08:25:48 AM Volume: Scrub completed for volume Data'.
Jul 27, 2023 12:48:35 PM Volume: Scrub started for volume Data.

One thing I find concerning though is I am seeing a lot of these btrfs errors:

[ +0.157155] BTRFS error (device md127): bdev /dev/md127 errs: wr 428870, rd 266, flush 0, corrupt 0, gen 0
[ +0.000228] BTRFS error (device md127): bdev /dev/md127 errs: wr 428871, rd 266, flush 0, corrupt 0, gen 0
[ +20.614028] BTRFS error (device md127): bdev /dev/md127 errs: wr 428872, rd 266, flush 0, corrupt 0, gen 0
[ +0.000481] BTRFS error (device md127): bdev /dev/md127 errs: wr 428873, rd 266, flush 0, corrupt 0, gen 0

When I did the scrub, it seems to have only scrubbed the /md/md127 object, and not the btrfs volume. 

root@RN316:/home/admin# btrfs scrub status /dev/md127
scrub status for 961dadcb-5a64-4702-b0fd-4a84956dda1d
no stats available
total bytes scrubbed: 0.00B with 0 errors

Should I try a btrfs scrub?

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Laserbait wrote:

 

Should I try a btrfs scrub?

 

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I'd run the disk test from the maitenance settings wheel next.

Are you seeing any related errors in the logs around the time of the BTRFS errors?  Look in system.log, kernel.log, and systemd-journal.log

Hello Stephen,

Running a disk test now.  There is nothing in those logs preceding the BTRFS errors, no hardware or software errors. The only thing that I can correlate it to is when trying to record/play shows on Plex.  Plex has it's own share on the 316 (PlexDVR).  I can access all the other shares without BTRFS errors appearing.

Another anomaly that I have seen is that I can't back up that PlexDVR share to my RN204 using ReadyDR, but I can with all the other shares. Every time I try, it errors out with:

Aug 03, 2023 05:59:17 AM ReadyDR: ReadyDR job failure: Operation not permitted [PlexDVR]

And the log files just say the same thing.  Doesn't say what "operation" isn't permitted, or any further details about the failure.

Ran the disk test, no errors were presented or reported as fixed.   The btrfs errors continued for the next couple of days, and have now ceased for some reason. Very, very odd...  I wonder if btrfs was fixing those errors as it was seeing/reporting them.  Can it even do that?

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Laserbait wrote:

Aug 03, 2023 05:59:17 AM ReadyDR: ReadyDR job failure: Operation not permitted [PlexDVR]

 

And the log files just say the same thing.  Doesn't say what "operation" isn't permitted, or any further details about the failure.

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ReadyDR is a snapshot based disk storage replication. Taking the snapshot from the volume holding the PlexDVR shared folder should be always possible. What is (or probably was?) configured in ReadyDR? local->local, local->remote, remote->local https://kb.netgear.com/31229/ReadyDR-Backup-Options - the ReadyDR history window shows a read-only view of what snapshots have been sent or received as part of the ReadyDR job.FMI.

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Laserbait wrote:

Ran the disk test, no errors were presented or reported as fixed.   The btrfs errors continued for the next couple of days, and have now ceased for some reason. Very, very odd...  I wonder if btrfs was fixing those errors as it was seeing/reporting them.  Can it even do that?

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The disk test doesn't attempt to fix errors.  It just runs the smart long test on all the disks.  You should have gotten a completion message when it finished.

As far as the errors go, there's no indication that BTRFS tried to retrospectively fix those either.  All you know for sure is that you aren't getting any more errors at the moment.  I'd keep an eye out, and see if any new errors are reported.

Have you recently run a balance?  (I deleted the log you sent in June, so I can't see the history of your maintenance functions).

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Laserbait wrote:

 

Another anomaly that I have seen is that I can't back up that PlexDVR share to my RN204 using ReadyDR, but I can with all the other shares. Every time I try, it errors out with:

Aug 03, 2023 05:59:17 AM ReadyDR: ReadyDR job failure: Operation not permitted [PlexDVR]

 

And the log files just say the same thing.  Doesn't say what "operation" isn't permitted, or any further details about the failure.

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No other errors of any kind around the time the backup job was run?  What logs have you looked in?

Were you able to back it up before the power issue in June?