On 1/25/22 03:31, Lionel PLASSE wrote:
I’ve made a rotation system like this
With one Bacula storage “backup” corresponding one Bacula device “Backup”<=>
root directory /pool-bacula/ automounted by udev.
And 3 pool full, diff, incr attached to this device
I have 8 usb disk xfs formatted with a xfs label “Bacula” (better than uuid to
configure udev rules) so udev can mount it automatically when plugged to the
Debian system. I don't use Bacula for usb disk mounting task
On each disk I label one volume:
3 for each 3 month full rotation volumes ,
Four for each 4 weeks diff rotation
one for the daily incremental auto purged each week
To be clear, you are using only a single volume per USB disk?
By configuring the good retention period between week days and month and by
adding the correct number on jobs volume on each one, you can easily configure
a schedule with 3 steps ,
one for full attached to full pool on each first Wednesday a month for example,
one for diff attached to diff pool each week from 2nd Wednesday to 5th
Wednesday
and the third for incremental each day from Monday to Thursday.
By this schedule you can keep a great number of backups so each day you can
restore the previous until the Monday with incremental backups, each week kept
by the differental backups and the 3 full montly too.
De : Radosław Korzeniewski <rados...@korzeniewski.net>
Envoyé : dimanche 23 janvier 2022 11:37
À : Peter Milesson <mi...@atmos.eu>
Cc : bacula-users@lists.sourceforge.net
Objet : Re: [Bacula-users] Virtual tapes or virtual disks
Hello,
pt., 21 sty 2022 o 14:22 Peter Milesson via Bacula-users
<mailto:bacula-users@lists.sourceforge.net> napisał(a):
If somebody has got experience with disk based, multi volume Bacula
backup, I would be grateful about some information (tips, what to
expect, pitfalls, etc.).
The best IMVHO (but not the only mine) is to configure one job = one volume.
You will get no real benefit to limit the size of a single volume.
In the single volume = single job configuration you can set up job retention
very easily as purging a volume will purge a single job only.
It is not required to "wait" a particular volume to fill up to start retention.
Purging a volume affects a single job only. And finally you end up with a way less number
of volumes then when limiting its size to i.e. 10G.
best regards
--
Radosław Korzeniewski
mailto:rados...@korzeniewski.net
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