Yes.

Storage pool => Device class=> Library => drives

Anything you create in the storage pool, is encrypted or not based on the
devclass settings.

If you need a sample of definitions, will be happy to send them.

On Tue, Jan 12, 2010 at 12:06 PM, Druckenmiller, David <DruckeD AT mail.amc DOT 
edu
> wrote:

> Using hardware encryption, managed by TSM.
>
> Are you saying I can have two device classes sharing the same devices?  For
> some reason, I was always under the impression that you couldn't.  But after
> scanning the help, I don't know where I came up with that notion.  That
> would definitely make things simple for me.
>
> Thanks.
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Wanda Prather
> Sent: Tuesday, January 12, 2010 10:20 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] Turning Encryption Off/On
>
> Is your encryption application-managed (controlled by TSM) or
> library-managed (controlled by EKM/TKLM)?
>
> If application managed, IBM is correct, you just need a different devclass
> that specifies drive encryption OFF, pointing to the same library, and a
> new
> storage pool that specifies the non-encrypted devclass.  .
>
> I've got 4 LTO drives, onsite pool is NOT encrypted (long story there),
> COPY
> pool IS encrypted.  No biggie.
>
> W
>
>
> On Tue, Jan 12, 2010 at 9:10 AM, Druckenmiller, David
> <DruckeD AT mail.amc DOT edu>wrote:
>
> > We currently encrypt all our offsite tapes.  Mgmt wants to me create a
> > single unencrypted archive tape to be stored offsite long term for
> > litigation reasons.
> >
> > My question is:  If I turn off encryption long enough to get some data
> > written to this one tape, then turn encryption back on, could I then
> > continue to write uncrypted data to this one tape while all other tapes
> > would be encrypted?
> >
> > IBM is being non-committal saying we should really use new device class,
> > but I'd then have to move one tape drive over to new class each time I
> want
> > to write unencrypted.
> >
> > TSM 5.5.3
> > AIX 6.1
> > Tapes are LTO4
> >
> > Thanks
> > Dave
> >
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