On Tue, 31 Jan 2012 09:41:27 -0600
"Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC]" <uthra.r.rao AT nasa DOT gov>
wrote:

> I have Bacula 5.2.3 compiled on a RHEL 6 Server. I have IBM TS3200
> Tape Library with two tape drives: LTO5 FH. I looking to see how I
> can get the best performance and speed up my backups
[...]
> I added the min/max block size in the Bacula-sd.conf "Device" section:
>   Minimum Block Size = 262144
>   Maximum Block Size = 262144
> 
> This really did not make any difference the "tapeinfo -f /dev/sg0"
> still shows the BlockSize:0 and MinBlock: 1/ MaxBlock: 16777215.
> 
> Has any ne out there done some Bacula tuning with the block size? I
> would really appreciate some help on this.
I'd say you're supposed to run `btape` [1] before and after tweaking
this option, and then compare the results.

1.
http://www.bacula.org/5.0.x-manuals/en/problems/problems/Testing_Your_Tape_Drive.html

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