Re: Sharing 280D fiber tape card

[DrFranken <midrange@xxxxxxxxxxxx>]

Rob,

    On your NWSD to the guest LPAR do NOT restrict the tape drive ( 
RSTDDRVRSC Parm  ) either by name, *ALLTAPE or *ALL.

    Now vary OFF the tape drive on the host LPAR.

    The drive should appear and be available to the GUEST lpar, simply 
vary it on.

    Should be as simple as that.

    Twist: IBM recommend that you have your guest's disk on a separate 
v-SCSI channel from Tape and Optical which means that you need TWO NWSDs 
configured and to do that you need TWO vSCSI pairs between the guest and 
the host.  I configure the first NWSD to have the disk on it and 
configure RSTDDRVRSC(*ALL) on that one. For he second NWSD I append the 
letters "TO" (for Tape and Optical) to the name to keep it straight in 
my head  [ SO NWSD one might be GUEST1 and the other GUEST1TO ]   Now 
you can Vary off the ..TO NWSD should you need to make changes and you 
won't upset the guest LPAR.

    Also personally I do not use Power Controlling on these type of LPARs.

        Hope that helps!

            - Larry "DrFranken" Bolhuis

On 12/19/2012 9:37 AM, rob@xxxxxxxxx wrote:
> Power 6 with 7.1 TR5.
> I've got HOST lpar with 2844&280D fiber tape card in an 0595.
> Can I share that with GUEST lpar other than dynamically moving those two
> cards?  That's not too hard to do, just looking at alternatives.
>
> Can I somehow ?virtualize? this so that both can be saving at the same
> time?
>
>
> Rob Berendt