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Forum Discussion
Readynas Ultra 6 freezes
I have a problem with my Ultra 6. (Work on Readynas OS 6) When I defrag my data the nas freeze. I tried everything: - Test disk -> Ok (smart ok for all disk) - Scrub -> Ok - Balance -> Ok I t...
The linux command shell also froze? This sounds like a btrfs issue. Is your backup up to date?
Did you look in the system logs for btrfs errors?
You could try running the balance manually on each share, and try to isolate it.
Yes the shell froze.
I look in the logs, but do not see anything bad.
Retired_Member wrote:
I look in the logs, but do not see anything bad.
Maybe enter journalctl | grep -i btrfs and look in that output for file system errors. Also look at the smart stats for any signs of disk issues.
This problem is likely happening in one share. You can run your manual balance on individual shares (because each share is a btrfs subvolume). So if you aren't seeing btrfs errors or any SMART issues, that might be the next step.
In kernel.log
Last entry before the last freeze (During Balance)
Feb 15 05:42:17 nas-EB-0C-F6 kernel: BTRFS info (device md126): found 16 extents
Feb 15 05:42:18 nas-EB-0C-F6 connmand[3073]: ntp: adjust (jump): +0.900246 sec
Feb 15 05:42:19 nas-EB-0C-F6 systemd[1]: Time has been changed
Feb 15 05:42:40 nas-EB-0C-F6 connmand[3073]: ntp: adjust (jump): -0.862266 sec
Feb 15 05:42:39 nas-EB-0C-F6 systemd[1]: Time has been changed
Feb 15 05:42:41 nas-EB-0C-F6 connmand[3073]: ntp: adjust (jump): +1.116711 sec
Feb 15 05:42:42 nas-EB-0C-F6 systemd[1]: Time has been changed
Feb 15 05:42:45 nas-EB-0C-F6 kernel: BTRFS info (device md126): relocating block group 10222152187904 flags data
Feb 15 05:43:02 nas-EB-0C-F6 connmand[3073]: ntp: adjust (jump): -0.864617 sec
Feb 15 05:43:01 nas-EB-0C-F6 systemd[1]: Time has been changed
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