Backup Central

Hi,

I use backup to disk to backup my clients and I hit the slow restore
problem when backup jobs run concurrently and use the same storage
device/volume. The backup window is small and therefore jobs must run at
the same time.

My first intention was to create for each client a dedicated storage
device, similar like [1]. With this configuration each backup job is saved
on a sperated volume, no mixups and slow restore is gone. But the
configuration overhead is huge and for a new client I have to restart the
storage daemon.

During my web search I found the configuration of mashdot [2]. He use four
generic storage devices and use _all_ four in the Job Resource
configuration.

Job {
...
Storage = PrimaryFileStorage,SecondaryFileStorage,TertiaryFileStorage,QuaternaryFileStorage
...
}

It's possible to define more than one storage device and the jobs will
select automatically the next free one until all are in used? I couldn't
find anything about this in the official documentation or in mailing list
archives.

If this is possible, why I'm getting the following errors when a jobs
starts during another is already running?

26-Jul 16:48 bacula.example.com-dir JobId 889: Start Backup JobId 889, Job=client2.example.com.2012-07-26_16.48.08_54
26-Jul 16:48 bacula.example.com-dir JobId 889: Created new Volume "client2.example.com-fd-new_FullPool-20120726-1648-889" in catalog.
26-Jul 16:48 bacula.example.com-dir JobId 889: Error: sql_create.c:424 Volume "client2.example.com-fd-new_FullPool-20120726-1648-889" already exists.
26-Jul 16:48 bacula.example.com-dir JobId 889: Error: sql_create.c:424 Volume "client2.example.com-fd-new_FullPool-20120726-1648-889" already exists.
26-Jul 16:48 bacula.example.com-dir JobId 889: Error: sql_create.c:424 Volume "client2.example.com-fd-new_FullPool-20120726-1648-889" already exists.


Thanks,

- Jummo



[1] http://myunix.dk/category/bacula/
[2] https://gist.github.com/2312522

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On Thu, Jul 26, 2012 at 11:10 AM, Jummo <jummo < at > devio.us> wrote:
Hi,

I use backup to disk to backup my clients and I hit the slow restore
problem when backup jobs run concurrently and use the same storage
device/volume. The backup window is small and therefore jobs must run at
the same time.

My first intention was to create for each client a dedicated storage
device, similar like [1]. With this configuration each backup job is saved
on a sperated volume, no mixups and slow restore is gone. But the
configuration overhead is huge and for a new client I have to restart the
storage daemon.

During my web search I found the configuration of mashdot [2]. He use four
generic storage devices and use _all_ four in the Job Resource
configuration.

Job {
...
Storage = PrimaryFileStorage,SecondaryFileStorage,TertiaryFileStorage,QuaternaryFileStorage
...
}

It's possible to define more than one storage device and the jobs will
select automatically the next free one until all are in used? I couldn't
find anything about this in the official documentation or in mailing list
archives.


No


If this is possible, why I'm getting the following errors when a jobs
starts during another is already running?

John

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On Thu, Jul 26, 2012 at 11:26 AM, John Drescher <drescherjm < at > gmail.com> wrote:
On Thu, Jul 26, 2012 at 11:10 AM, Jummo <jummo < at > devio.us> wrote:
Hi,

I use backup to disk to backup my clients and I hit the slow restore
problem when backup jobs run concurrently and use the same storage
device/volume. The backup window is small and therefore jobs must run at
the same time.

My first intention was to create for each client a dedicated storage
device, similar like [1]. With this configuration each backup job is saved
on a sperated volume, no mixups and slow restore is gone. But the
configuration overhead is huge and for a new client I have to restart the
storage daemon.

During my web search I found the configuration of mashdot [2]. He use four
generic storage devices and use _all_ four in the Job Resource
configuration.

Job {
...
Storage = PrimaryFileStorage,SecondaryFileStorage,TertiaryFileStorage,QuaternaryFileStorage
...
}

It's possible to define more than one storage device and the jobs will
select automatically the next free one until all are in used? I couldn't
find anything about this in the official documentation or in mailing list
archives.


No

I meant not with bacula alone.

I recommend you use a disk virtual autochanger to achieve this.

http://sourceforge.net/projects/vchanger/

John

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Hello

Message du 26/07/12 17:29
De : "John Drescher"
A : "Jummo"
Copie à : bacula-users < at > lists.sourceforge.net
Objet : Re: [Bacula-users] Multiple Storages in Job Resource

On Thu, Jul 26, 2012 at 11:26 AM, John Drescher wrote:
On Thu, Jul 26, 2012 at 11:10 AM, Jummo wrote:
Hi,

I use backup to disk to backup my clients and I hit the slow restore
problem when backup jobs run concurrently and use the same storage
device/volume. The backup window is small and therefore jobs must run at
the same time.

My first intention was to create for each client a dedicated storage
device, similar like [1]. With this configuration each backup job is saved
on a sperated volume, no mixups and slow restore is gone. But the
configuration overhead is huge and for a new client I have to restart the
storage daemon.

During my web search I found the configuration of mashdot [2]. He use four
generic storage devices and use _all_ four in the Job Resource
configuration.

Job {
...
Storage = PrimaryFileStorage,SecondaryFileStorage,TertiaryFileStorage,QuaternaryFileStorage
...
}

It's possible to define more than one storage device and the jobs will
select automatically the next free one until all are in used? I couldn't
find anything about this in the official documentation or in mailing list
archives.


No

I meant not with bacula alone.

I recommend you use a disk virtual autochanger to achieve this.

http://sourceforge.net/projects/vchanger/
IMHO, there is really no need to use that tool. Bacula is able to manage virtual autochanger by itself...

G.

John

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Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ?
Je crée ma boîte mail www.laposte.net

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http://sourceforge.net/projects/vchanger/
IMHO, there is really no need to use that tool. Bacula is able to manage virtual autochanger by itself...

Hmm. Is that a new feature in 5.2.X?

John

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On Thu, 26 Jul 2012, Georges wrote:

Hi Georges,

I recommend you use a disk virtual autochanger to achieve this.

http://sourceforge.net/projects/vchanger/
IMHO, there is really no need to use that tool. Bacula is able to manage virtual autochanger by itself...


Do you mean Virtual Tape Emulation [1]? But it's not recommend for production environment.

Best Regards,

- Jummo

[1] http://www.bacula.org/5.2.x-manuals/en/main/main/New_Features_in_3_0_0.html#SECTION0013245000000000000000

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Hi John,

On Thu, 26 Jul 2012, John Drescher wrote:
I recommend you use a disk virtual autochanger to achieve this.

http://sourceforge.net/projects/vchanger/


Do you have any experience with this tool? It's usable for production
environments?

Thanks,

- Jummo

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Thanks for your reply, I appreciate it.

Ok, I will read more about vchanger and see if it fit in my environment.

Have a nice Weekend,
Patrick


BTW I have used the virtual disk changer on the home network for
several years. Not a single problem with that or with my bacula
backups in years.

I believe I have 2 magazines of 50 x 5GB volumes each with a 30 day or
so retention period on volumes. Each magazine is on a ~250GB SATA hard
drive that goes to sleep after ~30 minutes of inactivity.

John

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Anyone experienced with mhvtl [1]?

[1] https://sites.google.com/site/linuxvtl2/


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