Hello John,
vchanger gets the job done as does the "disk-changer" script in
Bacula, from which vchanger was derived (and extended) if
I remember right. The disk-changer script works fine, but we
use it only for "tape" regression testing with our Virtual Tape driver.
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.
In the bacula-dir.conf file, define the autochanger in
the normal way for a physical tape autochanger library.
In the bacula-sd.conf, one defines:
Autochanger {
Name = FileChgr1
Device = FileChgr1-Dev1, FileChgr1-Dev2
Changer Command = ""
Changer Device = /dev/null
}
Device {
Name = FileChgr1-Dev1
Media Type = File1
Archive Device = /tmp
LabelMedia = yes # lets Bacula label unlabeled media
Random Access = Yes
AutomaticMount = yes # when device opened, read it
RemovableMedia = no
AlwaysOpen = no
Maximum Concurrent Jobs = 5
}
Device {
Name = FileChgr1-Dev2
Media Type = File1
Archive Device = /tmp
LabelMedia = yes # lets Bacula label unlabeled media
Random Access = Yes
AutomaticMount = yes # when device opened, read it
RemovableMedia = no
AlwaysOpen = no
Maximum Concurrent Jobs = 5
}
You will have a virtual autochanger, which should do what most people
want in a very simple way. Of course, the above is an example. I definitely
do not recommend writing your Bacula Volumes to /tmp. Needless to say,
you can have multiple autochangers (but you probably want different Media
Types), and you can have a large number of drives in each one. No symlinks
are involved and any volume that is in the Archive Device can be mounted on
any Device.
Best regards,
Kern
On 05/03/2013 11:00 PM, John Drescher wrote:
> On Fri, May 3, 2013 at 4:59 PM, John Drescher <dresche...@gmail.com> wrote:
>>> Fair enough. So what happens when a new volume is needed and there's no
>>> room on the current device? -- this is the point where you'd switch to
>>> the next device in the list and try again until you run out of devices.
>> It returns volume full and asks the user to label the next volume.
> Also its not advisable to make a single volume on a disk or array
> since this basically prevents recycling.
>
> John
>
> ------------------------------------------------------------------------------
> Get 100% visibility into Java/.NET code with AppDynamics Lite
> It's a free troubleshooting tool designed for production
> Get down to code-level detail for bottlenecks, with <2% overhead.
> Download for free and get started troubleshooting in minutes.
> http://p.sf.net/sfu/appdyn_d2d_ap2
> _______________________________________________
> Bacula-users mailing list
> Bacula-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bacula-users
>
------------------------------------------------------------------------------
Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and
their applications. This 200-page book is written by three acclaimed
leaders in the field. The early access version is available now.
Download your free book today! http://p.sf.net/sfu/neotech_d2d_may
_______________________________________________
Bacula-users mailing list
Bacula-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users
