bungei running out of space

we got this warning from nagios this weekend:

DISK WARNING - free space: /srv/backups/bacula 1886723 MB (9% inode=99%)

indeed, the main storage is full:

Sys. de fichiers                    Taille Utilisé Dispo Uti% Monté sur
/dev/mapper/vg_bulk-backups--bacula    20T     18T  1,6T  93% /srv/backups/bacula

There's plenty of free space on the VG, however:

  VG      #PV #LV #SN Attr   VSize  VFree 
  vg_bulk   1   2   0 wz--n- 72,60t 51,60t

So this could quickly be resolved by just resizing that partition. But it's interesting to note that the vast majority of storage in use comes from the static content. I suspect there's a lot of duplication around those and we could save space in backups by being a little smarter about this:

ncdu 1.13 ~ Use the arrow keys to navigate, press ? for help                                                                                                                                   
--- /srv/backups/bacula -----------------------------------------------------------------------------------------------------------------------------------------------------------------------
    4,3 TiB [ 25,0% ##########] /arlgirdense.torproject.org                                                                                                                                    
    4,3 TiB [ 24,5% ######### ] /staticiforme.torproject.org
    2,1 TiB [ 11,9% ####      ] /archive-01.torproject.org
    1,1 TiB [  6,2% ##        ] /perdulce.torproject.org
  871,0 GiB [  4,9% #         ] /colchicifolium.torproject.org
  806,1 GiB [  4,5% #         ] /Catalog
  554,4 GiB [  3,1% #         ] /corsicum.torproject.org
  375,1 GiB [  2,1%           ] /gillii.torproject.org
  237,5 GiB [  1,3%           ] /eugeni.torproject.org
  209,0 GiB [  1,2%           ] /hetzner-nbg1-01.torproject.org

Above is the top-ten in disk usage. It's interesting to note that archive01 is only half of its partners. We should also note that arlgirdense is likely going to go away eventually, because archive-01 will replace it.

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