Xen schreef op 15-04-2017 10:27:
I created a script to be run as a cron job that will email root in a
pretty nice message.
http://www.xenhideout.nl/scripts/snapshot-check.sh.txt
Just was so happy. I guess I can still improve the email, but:
Snapshot linux/root-snap has been unmounted from /srv/root because it
filled up to a 100%.
Log message:
Apr 17 14:08:38 perfection lvm[463]: Unmounting invalid snapshot
linux-root--snap from /srv/root.
Earlier messages:
Apr 17 14:08:21 perfection lvm[463]: Snapshot linux-root--snap is now
96% full.
Apr 17 14:08:01 perfection lvm[463]: Snapshot linux-root--snap is now
91% full.
Apr 17 14:07:51 perfection lvm[463]: Snapshot linux-root--snap is now
86% full.
Apr 17 14:07:31 perfection lvm[463]: Snapshot linux-root--snap is now
81% full.
-------------------------------------------------------------------------------
Apr 14 21:11:01 perfection lvm[463]: Snapshot linux-root--snap is now
97% full.
Apr 14 21:10:51 perfection lvm[463]: Snapshot linux-root--snap is now
93% full.
Apr 14 19:25:41 perfection lvm[463]: Snapshot linux-root--snap is now
86% full.
Apr 14 19:25:31 perfection lvm[463]: Snapshot linux-root--snap is now
81% full.
I was just upgrading packages hence the snapshot filled up quickly.
System works well. I don't get instant reports but if something happens
within the space of 5 minutes it is too late anyway.
Only downside is that thin messages get repeated whenever snapshots are
(re)created. So lvmetad will output new message for me at every 0:00. So
if thin is > 80%, every day (for me) there is a new message for no
reason in that sense.
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