Hello,

and welcome!

30.11.2009 13:21, Jens Froehlich wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi bacula-users,
> 
> I has a problem with my Bacula (3.0.2) installation on OpenSuSE 11.1
> (32Bit). The LTO-1 tapes are described only a half, nevertheless, it
> should fit 100 GB on it?

Depending on the data, yes. Usually, with compression enabled, you'd 
get more than 100G on each tape.

> I already succeed different values of the
> parametres " minimum block size" and "maximum blocksize" tested,
> unfortunately. If I the tapes with tar describe I reach 100 GB. I also
> find the writing speed with 6 MB/S a little bit slow?

Have you run the btape 'test' procedure?

Do you see any SCSI-related messages in the system's log file?

And yes, 6MB/s is rather slow for LTO-1, but the bottleneck could be 
elsewhere.

To get good speed, you need to do a bit of performance tuning, but 
let's see the answers for the above questions first :-)

By the way - I believe Kern will mention performance tuning on his 
upcoming webinar. A link to regsiter is at 
http://www.baculasystems.com/eng I don't know what he'll present in 
detail, though...

Cheers,

Arno


> - ----------------------------------------------------------------------
> Pool: DailyTAPE
> 
> DailyTAPE-0001 | Full      |       1 | 54,780,100,608 |        1 |
> 518,400 |       1 |    1 |         1 | LTO-1
> 
> DailyTAPE-0002 | Full      |       1 | 53,212,479,488 |        1 |
> 518,400 |       1 |    2 |         1 | LTO-1
> 
> .....
> 
> DailyTAPE-0010 | Append    |       1 |        131,072 |        0 |
> 518,400 |       1 |    10 |         1 | LTO-1
> - ----------------------------------------------------------------------
> 
> What must I do, the Bacula the tapes with at least 90 - 95 GB describes?
> Can somebody help me here?
> 
> By Jens
> 
> 
> 
> Sorry for my bad English :-(

-- 
Arno Lehmann
IT-Service Lehmann
Sandstr. 6, 49080 Osnabrück
www.its-lehmann.de

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