Gary Algier <[EMAIL PROTECTED]> writes:
> Multiple tape drives:
> Our old library had only one drive installed. I could have added
> a second one, but I could not see how amanda would use it to advantage.
> Can amanda use a second (or third...) drive?
> Is there any benefit?
Beside having it for redundancy (in case the first tape drive fails) I
use it to restore data while the amdump still runs on teh first drive.
I use mtx for moving the tape to the second drive; and after the
amrecove rrun I have to use mtx again to move it back.
> Barcodes:
> Can amanda find a tape faster if the library supports barcodes?
> The current method of reading the headers of each tape is slow
> enough to make me willing to drive to work to look at the written
> labels on the tapes.
> Can this kind of mechanism be used instead of barcodes to find
> the tape quicker?
>
As long as the tape requested by the taper algorithm (use amadmin
tape) comes directly after the current tape it will be found
immediately.
The cycling through the whole library only happens when the requested
tape isn't in the library anymore. And according to my observations
barcode does not help in that case. See
<[EMAIL PROTECTED]> sent to this list.
But mtx can display the barcode, so you can use that in order to find
out which tape to insert via amtape.
Sven
