Re: [Bacula-users] backup to multiple disks

Hello,

2013/5/24 Dimitri Maziuk <dmaziuk AT bmrb.wisc DOT edu>

On 05/10/2013 07:31 AM, John Drescher wrote:
>> I am a bit surprised that no one mentioned Bacula's built-in virtual
>> autochanger feature that has been there for years. The syntax for
>> enabling it is a bit of a "kludge" in my opinion, but it is the way that
>> Bacula
>> Systems is recommending to handle multiple disk backup.

>
> It's been in there for years I know that however I get the sense that
> its usage is not recommended from mostly older mailing list posts from
> you and others on the development team.

Moreover, this

> Device {
> Name = FileChgr1-Dev1
> Media Type = File1
> Archive Device = /tmp

...

> Device {
> Name = FileChgr1-Dev2
> Media Type = File1
> Archive Device = /tmp

...

together with this

> Needless to say ... you can have a large number of drives in each [autochanger]

means "a large number of drives" need to be all mounted in /tmp at the
same time -- or there's some other crucial bit of information missing.

No. This solution was first proposed by me in this thread with a mail from 3 May 2013 17:04. Then Kern (a week later) was suggested that it is a good solution too. It will require some kind of RAID or LVM for proper work. AFAIR You rejected this kind of setup:

>> (Radek):

>> Why not to use LVM or RAID to use all available hard disk space (12 x sata)

>> for backups? Believe me, it is simpler to create a single filesystem for

>> backups then use vchanger script (it is overcomplicated and IMVHO useless).

> (Dimitri):

> Yes, and in a place that doesn't have 10 years retention policy I have a

> 36-drive box that's set up exactly like that. Unfortunately this

> installation comes with different requirements.

best regards

Radosław Korzeniewski
radoslaw AT korzeniewski DOT net

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