Thank you very much again for all your information. Although I tried my
best, I couldn't save the old backup sequence anymore. My impression was
that at some point I might have deleted or corrupted one of the database
information files for dirvish, so it couldn't make out when and what
(for this single backup). Even another initiation wouldn't help.
So I decided to delete all existing backups and their database
information files and leave the disc like a brand new one with only the
default backup information structure for dirvish. Then I started an
initiation for each part backup and now it has been running ok for
couple of days.
Anyway I could gain a good refresh of my dirvish knowledge :)
Regards
Rolf
Am 08.09.21 um 15:14 schrieb Isaac W Traxler:
Presumably you had a working abckup at some point in the past and
something went wrong. You now probably have numerous backup directories
where a portion are still good but some number have littlle of no data.
The first goal is to get a good current backup. Before anythong elase,
make sure no backups are running for home (as suggested by others). Now
run a backup init to get a good backup of home. If this fails, tell us
ehat the log files say. Once that works, tyour future backups should be
fine.
This leaves the question of the exising backup directories. One approach
would be to do nothing and simply let them eventually get purged out. A
better approach would be to identify the failed backups and eliminate
them (I go to the home directory and do a "du -sh *". This command will
take a while, but it will report the amount of space that each backup is
taking. It should be obvious which ones failed (much smaller in space).
You can confirmthey failed by looking at the summary files. I normally
delete failed backup directories (so I don't assume they are there to
restore from).
The next issue is disk usage. Each init does a "full" backup and does
not take advantage of dirvish's (rsync's) ability to simply backup
changes. This results in duplicate copies of files. If space is of no
issue, you can not worry about this (and eventually as they age out this
problem will fix itself). When this issue happens, I go to the directory
above (my tree looks like /backups/server/file_system -- so I "cd
/backups/server"). and then I run "hardlink file_systyem" and wait for
it to finish (this may take a long time also). the hardlink command will
identify all duplicate files and replace duplicates with hardlinks to
one copy of the data (essentially what Dirvish/rsync does when making
the backups). This will recover any "lost" space due to duplicate files.
In fact, I make it a practice to periodcally run hardlink on every vault
to eliminate any duplicate files as a normal part of maintenance.
Isaac Traxler
LSU/LONI HPC Storage & Infrastructure Manager
trax...@lsu.edu
------------------------------------------------------------------------
*From:* dirvish <dirvish-boun...@lists.dirvish.org> on behalf of
Rolf-Werner Eilert <rwe-...@osnanet.de>
*Sent:* Wednesday, September 8, 2021 5:17 AM
*To:* dirv...@dirvish.org <dirv...@dirvish.org>
*Subject:* [Dirvish] One of the vaults broken - init enough?
I hope this list is still alive...
Some time ago I received a
21:45:44 /usr/sbin/dirvish --vault backup-home
backup-home:default:20210727-2145:
/mnt/backups/backup-home/dirvish/lock_file already exists
on the /home vault. After some days I looked it up and yes, I found a
lock file and deleted it, but it had no effect. So I decided to initiate
the /home vault again, then let it backup (only /home) once and went
into holidays.
Since then I get
21:24:51 /usr/sbin/dirvish --vault backup-home
backup-home:default:20210830-2124: ERROR: no images for branch default found
Guess I messed it up, but how can I re-initiate the /home? Of course,
the cronjob starts dirvish-runall, so do I have to expire all of them
first, then initiate again?
Thank you for your help!
Rolf
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