2008/9/26 Chris Picton <chris AT ecntelecoms DOT com>:
> Hi
>
> What is the recommendation when it comes to backing up over multiple HDDs
>
> I have 6 x 1TB drives, and I am trying to choose between a single LVM
> volume, or 6 separate drives.
>
> Which will be more beneficial to bacula?
>
> If I have separate drives, I will need to assign jobs to each device
> individually, and manually migrate jobs between volumes when the jobs get
> too large

No, not necessarily!

I use one device and symlink :


--- bacula-sd.conf
Device {
  Media Type = "file1"
  Archive Device = /arc/dev
...
}

# ls -la /arc/dev
lrwxrwxrwx 1 root root 9 Sep 30 09:21 /arc/dev -> /arc/hdd3

[root@backup bacula]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb1             367G  301G   48G  87% /arc/hdd1
/dev/sdc1             367G  333G   16G  96% /arc/hdd2
/dev/sdd1             367G  117G  232G  34% /arc/hdd3
10.1.1.2:/arc         9.5G  616M  8.4G   7% /arc/bsrv2  (<--- NFS)
...

# ls -la /arc/dev/
lrwxrwxrwx 1 root   root           28 Sep 30 14:36 pool.file.14d.0021
-> /arc/hdd1/pool.file.14d.0021
lrwxrwxrwx 1 root   root           34 Sep 30 14:39 pool.file.14d.0022
-> /arc/bsrv2/hdd3/pool.file.14d.0022
-rw-rw-rw- 1 bacula backup 9999998514 May  2 09:07 pool.file.1y.0500
-rw-rw-rw- 1 bacula backup 9999978288 May  2 09:14 pool.file.1y.0512
...

This principle is clear?

I use  file system ext3, ext2



>
> If I have an LVM device, a drive failure will cause me to lose all
> backups.

Yes, about 100%.
Unless you are not using RAID.

>
> Is it possible to give bacula a pool of devices which will be
> intelligently chosen based on available space?
>
> What is the experience of users here?
>
> Chris
>
>



-- 
with best regards

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