On Fri, Feb 6, 2009 at 7:29 PM, Christopher Dick <jcdick1 AT yahoo DOT com>
wrote:
> Now that I have my tape autochanger and such working as desired, though it
> may take a little tweaking, I am overall pretty stoked about getting this
> working. Now to start getting into the gritty details of tweaking for my
> environment and limited capacities.
>
> My first question is in regard to the monthly fulls. I have an issue with
> tape population in my library. I have only 20 slots for LTO-2 tapes, and my
> first full backup of my primary server has already used six of those. The
> data doesn't compress very well. Is there a way to inform Bacula to
> overwrite only that system's previous full when it goes to do a new one? We
> have TSM at my place of employment, and it does the whole "one time full,
> incremental forever" thing, which would reduce dramatically the number of
> tapes required. However, I am pretty limited on my available resources as
> far as tapes are concerned, and so I don't have the ability to maintain a
> stack of 60 unused tapes waiting to check out full ones and refill with
> empties. Two months will fill all my available tapes. I am basically
> needing to do a poor man's "de-dupe", really, so that there is only one copy
> of a server's data in the library at any given time, even three, four or five
> years from now. Is that possible?
>
> Also, I am using spooling to maximize performance on the drives. I have the
> max bytes set to about 90% of my spool disks' capacity. However, I didn't
> see anywhere if there was a low bytes setting, so that if the pool fills, it
> will spool off to tape all the way down to the minimum instead of just until
> the spool says "I'm not at my max capacity anymore." Or does it do that and
> I am just not setting the max size right and have it a decimal place too
> small?
>
> Any help is appreciated. And this Bacula thing is really a god-send.
>
I am glad you said any. Although I try to help most users I am way too
busy with the (paying) day job. So I can not spend more than a minute
or 2 per reply...
Anyways bacula prevents overwriting of volumes.
You want to look at:
http://www.bacula.org/en/rel-manual/Automatic_Volume_Recycling.html
for ways to have bacula recycle your data based on the policies you want.
John
------------------------------------------------------------------------------
Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM)
software. With Adobe AIR, Ajax developers can use existing skills and code to
build responsive, highly engaging applications that combine the power of local
resources and data with the reach of the web. Download the Adobe AIR SDK and
Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com
_______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users
|
