Hi Milton,

When TSM writes simultaneously to the copypool would
this be on the 2nd Library for duel tape backup?

"Johnson, Milton" wrote:

>  You should be able to create a PRIMARY STGPOOL named TAPEPOOL and a
> COPY STGPOOL named COPYPOOL with both of them having a sequential access
> (tape) DEVICE CLASS such as DLT or LTO.  Both stgpools can be in the
> same library.  On the stgpool TAPEPOOL definition you set the
> COPYSTGPOOLS parameter to COPYPOOL.  Then when your client backs up to
> TAPEPOOL, TSM will simultaneously write to COPYPOOL.  Of course having
> an adequate number of tape drives is required.
>
> H. Milton Johnson
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Timothy Hughes
> Sent: Friday, September 17, 2004 8:01 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Duel tape write to LTO's
>
> Hello,
>
> I was told that this could work If I have 2 backup disk pools.
>
> Like I have backup diskpool, then I can have like say a DB2 backup
> diskpool then I can have the next storage pool setting for the db backup
> pool so I can migrate to the one Library then for the other backup disk
> pool I can have it migrate to the other Library.
>
> I think I can have simultaneous write to two different libraries this
> way. Still not sure if this would work.
>
>    TSM Library setup
>
>   TSM  SERVER  LTO_LIB  LIBRARY
>
>   TSM  SERVER  RMT1  DRIVE  LTO_LIB
>   TSM  SERVER  RMT2  DRIVE  LTO_LIB
>   TSM  SERVER  RMT3  DRIVE  LTO_LIB
>   TSM  SERVER  RMT4  DRIVE  LTO_LIB
>
>   TSM  SERVER  RMT_LTO  LIBRARY
>
>   TSM  SERVER  RMT5  DRIVE  RMT_LTO
>   TSM  SERVER  RMT6  DRIVE  RMT_LTO
>   TSM  SERVER  RMT7  DRIVE  RMT_LTO
>   TSM  SERVER  RMT8  DRIVE  RMT_LTO
>
> Any other ideas comments are welcome!
>
> Thanks
>
> "Johnson, Milton" wrote:
>
> > It is the basic philosophy of TSM to have only one copy of a file in a
>
> > PRIMARY STORAGE POOL. With TSM 5.x you can simultaneously write to a
> > PRIMARY STORAGE POOL and COPY STORAGE POOL (see HELP DEFINE STGPOOL).
> >
> > H. Milton Johnson
> >
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
> > Of Timothy Hughes
> > Sent: Thursday, September 16, 2004 10:28 AM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Duel tape write to LTO's
> >
> > Hello all,
> >
> > We are backing our server from disk to tape on a LTO 3584 Library
> > drives
> > 4 drives (1-4)
> >
> > We just added a 2nd library LTO (same 3584) Is it possible to backup
> > to the 2nd library LTO simultaneously.
> >
> > In other words were backing up to tape 1 on Lib_LTO and would like to
> > backup to Tape 2 on the new library at the same time. We want Duel
> > tape backup and don't want to use copy groups if we don't have to.
> >
> > 3584 Lib_LTO A has 4 drives (1-4)
> > 3584 Rmt_LTO B has 4 drives (5-8)
> >
> > TSM version 5.2.3.1
> > AIX 5.2
> >
> > Thanks in advance for any help!