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Aall shares have disappered from the web UI
Annoyingly, my system restarted itself unexpectedly at around 10pm last night and when it came back up, all the shares (except for home folders) had disappeared from the shares tab of the web UI, alt...
XtheUnknown wrote:
df -h is showing /dev/md0 partition is 36% (of 4G) used but
btrfs file usage // shows only 330 MB unallocated (of 4GB).
Run a balance
btrfs balance //That should increase the unallocated space.
FWIW, running out of unallocated space could have triggered your problem.
All those log files have been overwritten since the event, except STATUS.LOG which just confirms that ReadyNASOS service was restarted at 22:38:12 on 2024/12/31.
Yes, I have a full backup on another ReadyNAS, so if files have become corrupted I could potentially factory reset and restore the whole system from backup (although I'd rather not go through that!)
df -h is showing /dev/md0 partition is 36% (of 4G) used but
btrfs file usage // shows only 330 MB unallocated (of 4GB).
I've also (now) downloaded and run the "codycook" share_lun_ui_fix.sh script which (as my shares had already re-appeared following my restore of the configuration file and subsequent reboot) does not appear to have done any harm (and hopefully has tweaked anything not fixed by my initial approach)
XtheUnknown wrote:
df -h is showing /dev/md0 partition is 36% (of 4G) used but
btrfs file usage // shows only 330 MB unallocated (of 4GB).
Run a balance
btrfs balance //That should increase the unallocated space.
FWIW, running out of unallocated space could have triggered your problem.
Indeed it did, from 330MB to 2.06GB.
I had been adding a lot of files (and deleting some too) earlier on that day.
FYI my volume has (over a couple of years) been vertically expanded from 10TB drives to 16TB drives, so it's really two volumes made to appear as one by the magic of XRAID. Does such a configuration require more frequent balances to ensure that both the 10TB and 6TB partitions (on each drive) are equally full?
XtheUnknown wrote:
FYI my volume has (over a couple of years) been vertically expanded from 10TB drives to 16TB drives, so it's really two volumes made to appear as one by the magic of XRAID. Does such a configuration require more frequent balances to ensure that both the 10TB and 6TB partitions (on each drive) are equally full?
I don't know about "require", but I think it is good practice to run balances regularly.
Personally I run each of the maintenance functions once a month (cycling through all four 3 times a year). A balance can take a long time if you've never run one. With my schedule, they complete more quickly - the last one took an hour.
Also, I space out scrub and disk test, as a scrub also exercises all the disks in the volume.
Thanks - that's good advice. I'll add a balance as a monthly task.
Would I be right in assuming that, when a disk is replaced (whether expanding or not) that effectively does a scrub, as the system must read all the data on the remaining disks to re-create the (checksum) data on the replaced disk?
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