On 06/14/2013 02:16 AM, Marcin Haba wrote:
> W dniu 13.06.2013 22:49, John Drescher pisze:
>> On Thu, Jun 13, 2013 at 4:34 PM, arnaldojsousa
>> <bacula-forum AT backupcentral DOT com> wrote:
>>> Hi all...
>>>
>>> The bacula with vchanger using external USB disks works fine, but i have 
>>> some doubts:
>>>
>>> - jobs were executed last night - no problem so I'd like to use one disc 
>>> per day. we have a set of 5 (Mon-fry) external USB disk 500GB
>>>
>>> Question 1:
>>>
>>> I'll have to run the command "label barcodes" for each magazine manually 
>>> every day?
>>>
>> No. I would do that 1 time for each external making each external its
>> own magazine.
>>
>>
I have two USB disks that I swap over every month or so. You could no 
doubt extend this approach to 5 disks swapped every day.

My bacula-dir.conf and bacula-sd.conf files are generated from template 
files using the following script, which I run when I swap the disks. If 
I was clever I could probably hook it into systemd to run when the right 
USB devices are detected, but its more trouble than its worth.

---------------8<-------------------8<---------------
#! /bin/sh

TARGET=/etc/bacula
TEMPLATES=/etc/bacula/templates

if test -h /dev/disk/by-label/BACKUP5; then DISK=5; fi
if test -h /dev/disk/by-label/BACKUP6; then DISK=6; fi
if test -h /dev/disk/by-label/BACKUP7; then DISK=7; fi
if test -h /dev/disk/by-label/BACKUP8; then DISK=8; fi

m4 -D NUMBER=$DISK $TEMPLATES/bacula-dir.conf.m4 > $TARGET/bacula-dir.conf
m4 -D NUMBER=$DISK $TEMPLATES/bacula-sd.conf.m4 > $TARGET/bacula-sd.conf

service bacula-dir restart
service bacula-sd restart
---------------8<-------------------8<---------------

Each USB drive has its own pair of pools; a big one for weekly backups 
and a smaller one for daily diffs, defined thus:

---------------8<-------------------8<---------------
Pool {
   Name = Daily-NUMBER
   Pool Type = Backup
   Recycle = yes                       # Bacula can automatically 
recycle Volumes
   AutoPrune = yes                     # Prune expired volumes
   Volume Retention = 5 days
   Storage = `File-Backup'NUMBER
   Label Format = `Daily'NUMBER-
   Maximum Volume Bytes = 20G
   Maximum Volumes = 20
---------------8<-------------------8<---------------

All the jobs have names of the form "happy-NUMBER", and so on. The 
current disks themselves are labelled "BACKUP-7" and "BACKUP-8", and the 
storage device in bacula-sd.conf.m4 looks like this:

---------------8<-------------------8<---------------
Device {
   Name = `BACKUP'NUMBER
   Media Type = File
   Archive Device = `/media/BACKUP'NUMBER
   LabelMedia = yes;                   # lets Bacula label unlabeled media
   Random Access = Yes;
   AutomaticMount = yes;               # when device opened, read it
   RemovableMedia = no;
   AlwaysOpen = no;
}
---------------8<-------------------8<---------------

Obviously there is a lot of other stuff, but I hope this is enough to 
give you the idea.

Paul.

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