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Forum Discussion
btrfs_sync_log+840 problem
Hi, My RN104 has started failing with the message "btrfs_sync_log+840" on the front LCD. The device is fitted with 4 x 4TB disks and is running 6.10.5 hotfix. It has worked problem free for sev...
I had a similar issue with this error on a ReadyNAS error being btrfs_sync_log.
Disks were healthy, and when this error comes up, some data becomes partially unaccessible, and along the time the appliance fails to respond. The only recovery is by powering it off.
Whilst in a healthy state following a restart (forced power off) I deleted all the snapshots, and from then I did not have this error surfacing again.
mikem501 wrote:
Whilst in a healthy state following a restart (forced power off) I deleted all the snapshots, and from then I did not have this error surfacing again.
I do recommend making sure you have a backup of the data, as this might not be the last of this problem.
Might be worth running a balance and a scrub from the volume settings wheel.
Thanks StephenB
I am running Netgear ReadyNAS 314 version 6.10.10 and I don't have such maintenance options available on the Volume.
I came to that conclusion as btrfs+sync is something related to snapshots, and since I never use snapshots on this device, I took them off completely from all shares and I had no problems since.
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