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Could not delete share due to snapshot deletion failure, Code 1004030000 OS6
I have a ReadyNAS 316 OS 6.10.2 with 3x2TiB + 3x4TiB disks so currently at 12TiB. Seem to have a problem with one of my share folders. I am unable to delete a share due to a snapshot deletion error a...
Clearly the file system for the data volume has become corrupted somehow. The most conservative approach is to do a factory default, rebuild the NAS, and restore the data from backup.
If you purchased the NAS (new) between 1 June 2014 and 31 May 2016, then you have lifetime chat support at my.netgear.com. You could try using that if you have it.
SSH is another possibility - using it to manually delete the snapshots and share. You'd log in as root, using the NAS admin password.
You can list the btrfs subvolumes (e.g., shares and snapshots) with btrfs subvolume list /data
Then you can manually delete the ones you want to get rid of with btrfs subvolume delete <path>
You need to use the full name in the path (e.g., it needs to start with /data/OldChive ). When deleting snapshots you need to delete each one independently (something like /data/OldChive/.snapshots/XX/snapshot for each one).
Hey SandShark
Just wanted to let you know the solution was found, I was ignorantly trying to use “rm” to delete a “SUBvolume”. Subvolume being something I did not even understand was different that a standard dir.
I should have used the command “btrfs subvolume delete” one each dir in the subvolume. I did, after rereading when not tired the first reply by StephenB, the command posted, and it worked perfectly.
FYI to any reading, since I was already in SSH, I went ahead and ran “btrfs balance start /data” and will once complete—and maybe should have first—run “btrfs scrub start /data”.
I had started the scrub in the admin page, then ran SSH balance without thinking. The Scrub ran for a few seconds before it cleared-up the false Snapshot shown in the admin page. Once I saw the balance and scrub were running at the same time and I actually COULD stop just the scrub I did. I hope I didn’t screw anything up by doing that, but will see.
Hmm. Odd that you were getting a "read-only file system" error instead of something that gave a better clue as to the problem. But glad you got it worked out and it was actually something simple.
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