You could skip the dsmfmt step - I don't think it actually buys you
anything.

We've just done define volume (you just need to calculate how much space
you have first to determine the # of volumes to define).

The disk only backup document states that dsmfmt may buy you less
fragmentation but this is not the case (at least on windows, on 5.2.2.4
- discussed on the list).

Tim

-----Original Message-----
From: Steve Bennett [mailto:steve_bennett AT ADMIN.STATE.AK DOT US] 
Sent: Thursday, March 17, 2005 10:09 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: DIRMC - Are copypool reclamation performance issues
resolved or not.

Wanda,

I just added a sata disk array in TSM v5.2 so I'll jump in here.

If you are using one disk partition in Windows for the device class then
you can let TSM define the number of vols it needs up to maxscr or out
of disk condition. Each volume name will be unique and assigned by TSM.

If you use more than one one disk partition for the device class you
need to dsmfmt as many volumes as you need and you must then define
those volumes to the storage pool. Only the volume names you specified
will be used and reused.


Prather, Wanda wrote:
> Tim:
>
> We are looking at using all disk now for our onsite disk pool with our
> next capital$ buy.
> Something I've never been sure of -
> Whenf you use a type=file devclass for backups,
>
> 1) Do you predefine volumes somehow, or just let TSM create a new one
> after the first hits max capacity?
> 2) Do reclaims happen by themselves, or do you have to force it
somehow?
>
> Thanks
> Wanda
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
Of
> Rushforth, Tim
> Sent: Wednesday, March 16, 2005 5:31 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: DIRMC - Are copypool reclamation performance issues
> resolved or not.
>
>
> It is fixed (somewhere around 5.1.5.2).
>
> -----Original Message-----
> From: Thorneycroft, Doug [mailto:dthorneycroft AT LACSD DOT ORG]
> Sent: Wednesday, March 16, 2005 4:25 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: DIRMC - Are copypool reclamation performance issues resolved
or
> not.
>
> OK, after spending a large portion of my day reviewing adsm-l post
going
> back to
> 2000, I'm still not sure. Does anyone know if there is still a
> performance problem
> running reclamation on a DIRMC random access disk pool?
> I came across one post that said it was supposedly fixed, but
> recommended using
> a file type diskpool to be safe.
>

--

Steve Bennett, (907) 465-5783
State of Alaska, Enterprise Technology Services, Technical Services
Section