Low disk space on tabaluga

[tomhughes]

The wiki server, tabaluga, is getting low on space.

I deleted an old wiki dump which means we now have about 10% free - there is now 377Gb used with about 150Gb of mysql data and 150Gb in the main wiki directory.

[Firefishy]

tabaluga has 2x 480GB in a RAID1 configuration. RAID1 to RAID5 migration is supported if there is a working battery. See https://github.com/openstreetmap/operations/issues/408

Likely best to create a new array and migrate across. My preference would be larger 2x 12G SAS SSD. The original disks can be used as hot spares in the spike machines on-site.

[Firefishy]

Potential replacement disk 2x https://www.ebay.co.uk/itm/203855641256

[pnorman]

Let's switch the wiki to one of the newer HP DL360s that we haven't yet used in Dublin, as they have 3x1.9TB.

[tomhughes]

This is back over 95% again - should we go with @pnorman's suggestion and move it to Dublin?

[Firefishy]

Going to move to konqi

[Firefishy]

konqi runs PHP8 (ubuntu 22.04) which mediawiki is not yet compatible with. Mediawiki 1.39 will support PHP8.

[Firefishy]

27% free (122GiB) after cleanup. Should give us a bit of breathing room.

[grischard]

Breathing room is holding, changing title.

[grischard]

Linked issue: #760 for migration to a mediawiki version that will work with the php 8 on konqi

[pnorman]

Unblocked, we've upgraded MW

[tomhughes]

This has now been completed.