In the parent task SRE is asking us what hardware we need for the replacement of thorium, since the host is out of warranty and needs to be refreshed. Thorium has a ton of disk space, that we don't really use:
elukey@thorium:~$ df -h Filesystem Size Used Avail Use% Mounted on [..] /dev/md0 92G 3.3G 84G 4% / [..] /dev/mapper/thorium--vg-data 7.2T 1.2T 5.7T 17% /srv [..]
The 1.2T used for /srv don't allow us to use misc hw configurations (480GB SSD disks in raid 1 for example), so I am wondering if all the data stored in there is needed:
elukey@thorium:/srv$ sudo du -hs * 727G analytics.wikimedia.org 68G backup_wikistats_1 8.0K deployment 4.0K log 16K lost+found 3.5G org.wikimedia.community-analytics 11G published-rsynced 85M src 68G stats.wikimedia.org 156G wikistats
The dir wikistats has only a backup dir inside it, so probably those 156G can be dropped? Same for backup_wikistats_1. The biggest dir is of course analytics.wikimedia.org, so reducing that one would be nice as well.
If we don't reach less disk space it is not a big deal, we can order more disks etc.., I just want to make sure that we do it because we need it :)