Carsten,

With the client, group, and pool parallelisms all set to 4 and both
drives' target sessions set to 16, I still see two of the four sessions go
to /dev/nst3 and the other two go to /dev/nst1. I don't care which of
those two drives does the backup, but I want all four sessions to go to
one of those two drives. I am mystified on how to accomplish that though.

On 6/1/2011 9:30 AM, "bingo" <networker-forum AT BACKUPCENTRAL DOT COM> wrote:

>Specifying 16 streams for a tape drive is pretty hig, especially if you
>only generate 4 streams from the client. But of course it should work.
>Is the second tape from the same pool of is it used for index backups?
>
>There are several possibilities you can try:
>  - Limit the client parallelism so that he can not send more data
>streams than you need.
>  - Limit the savegroup parallelism accordingly.
>  - Worst case, you may select only one tape drive for the pool. But do
>not forget that if you exclusively select 1 drive, NW does not have an
>alternative if this device will break.
>
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