[tech] Cron <backups at mollitz> /backups/bin/rdiff-manager/rdiff-manager.py (fwd)

[David Adam]

Backups for molmol have been failing for the last month or so as the
backup server (Mollitz) does not have enough space.

I am planning to drop the backups of /away in order to maintain the
backups of things that actually matter, like /services.

Mollitz has four 2 TB drives in it. Three of them are RAID-5ed to make a
4 TB array using the hardware RAID and an ext4 filesystem, and the
fourth is a single RAID-0 which has a ZFS pool on it. (The ZFS pool uses 
compression, which means it can store a bit more data.)

At some stage, we could delete the array and redo it so that it has a 
RAID-5 using all four drives, but that involves losing all the data on the 
array so I have been avoiding it.

David Adam
zanchey at ucc.gu.uwa.edu.au

---------- Forwarded message ----------
Date: Wed, 19 Jul 2017 04:01:21 +0800 (AWST)
From: Cron Daemon <root at ucc.gu.uwa.edu.au>
Subject: Cron <backups at mollitz> /backups/bin/rdiff-manager/rdiff-manager.py

----------------------------------------------------------------------------
RDIFF-MANAGER REPORT for run started Wed Jul 19 02:00:01 2017
----------------------------------------------------------------------------

SUMMARY:

  Backup succeeded for motsugo
  Backup succeeded for merlo
  Backup succeeded for mooneye
  Backup succeeded for heathred
  Backup succeeded for mollitz
  Backup succeeded for gitlab
  Backup succeeded for medico
  Backup succeeded for murasoi
  Backup FAILED for molmol
  Backup succeeded for mussel

----------------------------------------------------------------------------
Backup results for molmol

*-----------------------------------------------------------------------------*
| This is node Molmol at The University of WA - for authorised clients only   |
|                                                                             |
| WARNING: Misuse of computer access can attract criminal penalties, civil    |
|          liability for third party loss and university disciplinary action. |
*-----------------------------------------------------------------------------*

Exception '[Errno 28] No space left on device: '/backups/molmol/rdiff-backup-data/rdiff-backup.tmp.0'' raised of class '<type 'exceptions.OSError'>':