You treat the filepool as if it was tape. You don't want hundreds of nodes 
data on a tape cartridge because it causes contention, and it causes 
massive amount of tape mounts.  You can get the same types of problems 
with filepool volumes even though it is disk. When a filepool volume is 
being read it is mounted, just like a tape. If you are using replication 
between two ProtecTIER VTL's, production and DR,  you can actually 
checkout a volume in one vtl and check it in in the other vtl, just like 
tape.

 
Best Regards,
_________________________________________________________
    
email: [email protected]

 



From:   Stefan Folkerts <[email protected]>
To:     [email protected]
Date:   08/24/15 12:39
Subject:        Re: [ADSM-L] going to all random disk pool for tsm for ve
Sent by:        "ADSM: Dist Stor Manager" <[email protected]>



But if enough volumes are in the filling state this is not a problem and
may I ask why use collocation on a filepool?

On Monday, August 24, 2015, Lee, Gary <[email protected]> wrote:

> No deduplication.
>
> However, I have the trouble of a file class pool, collocated by 
filespace,
> showing full and not allowing backups even though the pool shows 75% 
full,
> just used itx maxscratch allocation.
> This causes an inordinate amount of human interfvention to keep afew
> volumes below maxscratch.
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:[email protected] <javascript:
;>]
> On Behalf Of Stefan Folkerts
> Sent: Monday, August 24, 2015 6:07 AM
> To: [email protected] <javascript:;>
> Subject: Re: [ADSM-L] going to all random disk pool for tsm for ve
>
> I believe a fileclass storagepool is better suited for this kind of
> "permanent" storage on disk.
> A diskpool should be used for things such as disk between the backup 
client
> and tape for temporary random I/O storage that can handle an unlimited
> amount of sessions.
> A fileclass storagepool is better suited for long term storage.
> I create a diskpool for VE metadata when using dedup on the filepool and
> use fileclass storagepools for permanent storage on disk with or without
> deduplication.
>
> Are you planning on using deduplication on disk?
>
>
> On Fri, Aug 21, 2015 at 10:12 PM, David Ehresman <
> [email protected] <javascript:;>> wrote:
>
> > Gary,
> >
> > TSMVE 7.1.2 makes file level restores a reality.  You may want to work
> > with them a bit before deciding if you want to go to all random disk.
> >
> > David
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:[email protected]
> <javascript:;>] On Behalf Of
> > Lee, Gary
> > Sent: Friday, August 21, 2015 3:31 PM
> > To: [email protected] <javascript:;>
> > Subject: [ADSM-L] going to all random disk pool for tsm for ve
> >
> > Hoping to get upgraded to tsm server 7.1.x within the next month.
> > At that time, we are considering changing our storage strategy to all
> > random disk pool.
> >
> > This because we cannot do a file level restore from a vmware backup 
from
> > sequencial media, (be it tape or disk).
> >
> > Has anyone done this, or is there a better way?
> >
> > Looking for guideance and others' experience.
> >
>




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