df size report
Generates and logs to each mountpoint the output of df for that mountpoint
Useful for immediate on-machine quicker-than-finding-metrics view of long term fs trends.
At one line per day, grows approx 1.5k/month - no rotation likely
root@galactica:~# tail /home/dfsizerep.history
2021-03-01 00:00:00,/dev/md1,3096237,1850870,938675,69.68,galactica:/home
2021-03-02 00:00:00,/dev/md1,3096237,1851168,938376,69.69,galactica:/home
2021-03-03 00:00:00,/dev/md1,3096237,1851585,937959,69.70,galactica:/home
Run from cron. Params can be given to specify mountpoints, but not required 0 0 * * * /root/bin/dfsizerep.sh
Default mountpoints are found by joining the output of two commands
lsblk -lfindmnt -O rw -lthus:join <(lsblk -n -o MOUNTPOINT | sort | uniq) <(findmnt -O rw -l | cut -d ' ' -f 1 | sort | uniq) | grep .
Tested and working on
- centos 6, 7
- debian 7 through 10
- failed to work in debian8 on openvz