On Sun, 19 Aug 2001, Patrick J. LoPresti wrote:
> We recently acquired a large Sun tape library, and I have been tasked
> with configuring Amanda to use it.
>
> This library holds around 100 DLT tapes and has a single robotic arm
> which serves four drives. The arm and each drive are distinct devices
> on the SCSI bus. The autoloader also has a bar code reader.
>
> I am thinking I will create four distinct Amanda configurations, one
> for each tape drive, which just happen to share a changerdev. I am
> hoping multiple concurrent attempts to use the changer will get
> queued, as opposed to just failing...
>
> I am also hoping to use the mtx from Sourceforge plus a recent version
> of Amanda (with chg-zd-mtx) to make use of the bar codes.
>
> Questions:
>
> Is anybody else using Amanda on similar hardware? If so, what
> does your configuration look like?
Similar in the sense of number of tapes and drives. Make sure you have
the tapedev set to each drive's no-rewind device in each of the 4
configs.
>
> Is the barcode-to-Amanda-label database robust against multiple
> concurrent readers? What about multiple concurrent writers? And
> is it this support documented somewhere yet :-) ?
Since you'll have 4 amanda configs, you'll have 4 separate barcode
databases. Since this all relies on the scsi bus and how it handles
multiple requests, I'm not sure of the answer to the last questions. I
run all 4 jobs at the same time, if that's what you mean.
>
> Thanks!
>
> - Pat
--
Jason Hollinden
MH5 Systems Admin
"Yes, I am an agent of Satan, but my duties are largely ceremonial."
