Help me to understand and please correct if I am wrong:

1. As far as I know from v4.1 and what I read in v4.2 docs, the storage
agent allows LAN-free (-->) DATA (<--) movement. Meta-data goes through LAN
from client to server and sits in the DB. The server mounts the tape
volume, (I do not know who exactly does tape positioning), and storage
agent (limited functionality server code) writes backup data through SAN to
the tape. If needed server dismounts volume, mounts new one and the
operation continues.
So if we thing about the storage pool data it goes straight from
client/agent to volume - no server involvement except for tape
mount/dismount. It does not have to go through the server.

2. SAN library sharing through SAN Data Gateway (or SAN Data Gateway
Router) is available since v3.7 between servers, enhanced in v4.1 to allow
storage agent (not server) also to access the tapes but only for Windows
Agent and in v4.2 is additionally enhanced providing storage agents on AIX
and Solaris. So this was available long time ago (sorry I cannot say when
v4.1 was announced and am too lazy to check).

3. There is a possibility to share sequential volumes which are not tapes
but FILE devclass through SANergy.
Did anybody tested/used this? Is anybody on this list using SANergy?
Does this mean that a storage agent can backup to shared FILE volumes (best
theoretical backup time - both disks and FC) and later TSM server can
perform storage pool backup and migration?

4. What is this server-less operation? Is this an already implemented
feature in v4.2.1 (new feature in maintenance release ?!?) or just
something planned to be implemented in v5.1 (or later) ? How the
server-less backup will mark volumes if it does not have any path to notify
the server DB? Or this would be some kind of standalone solution, i.e.
server + local client (+TDP for Apps) with reduced capabilities/features?


Zlatko Krastev
IT Consultant






Suad Musovich <suad AT CCU1.AUCKLAND.AC DOT NZ> on 18.10.2001 07:09:54
Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To:     ADSM-L AT VM.MARIST DOT EDU
cc:

Subject:        Re: storage agent?

That will imply 3rd party SCSI copy functionality, which I haven't
seen any indication they have incorporated to TSM.

The physical data will still have to go through the TSM server, within the
SAN environment, before it gets put in a storage pool.

Suad
--
On Wed, Oct 17, 2001 at 10:44:36PM -0400, Seay, Paul wrote:
On Wed, Oct 17, 2001 at 10:44:36PM -0400, Seay, Paul wrote:
> Yes
>
> -----Original Message-----
> From: Bern Ruelas [mailto:bern AT CADENCE DOT COM]
> Sent: Wednesday, October 17, 2001 6:32 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: storage agent?
>
>
> Thanks Alex,
>
> Now this is LAN-less backups, right? Just metadata going to the server,
> all backups going direct from disk to tape over the SAN
network.....right?
>
> -Bern
>
> At 10:30 AM 10/17/2001 -0700, you wrote:
> >Bern, Si se puede, and it's available right now
> >
> >Regards...Alex Osuna
> >IBM Principal Systems Engineer
> >Tivoli Certified Consultant
> >408-256-9952
> >Fax 408-904-5326
> >Pager 408-390-0813
> >"The price of Freedom is eternal vigilance"--Thomas Jefferson"
> >
> >
> >
> >                     Bern Ruelas
> >                     <bern@CADENCE.       To:     ADSM-L AT VM.MARIST DOT EDU
> >                     COM>                 cc:
> >                     Sent by:             Subject:     Re: storage
agent?
> >                     "ADSM: Dist
> >                     Stor Manager"
> >                     <ADSM-L AT VM DOT MAR
> >                     IST.EDU>
> >
> >
> >                     10/17/01 09:24
> >                     AM
> >                     Please respond
> >                     to "ADSM: Dist
> >                     Stor Manager"
> >
> >
> >
> >
> >
> >Joshua,
> >
> >Could this be used with IBM's San Data Gateways to stream data
> >directly to the tape drives? I thot that was due out 1Qtr of next year.
> >
> >-Bern
> >Sr. Systems Engineer
> >Cadence Design Systems
> >Off: (408) 428-5246
> >bern AT cadence DOT com
> >
> >At 04:52 PM 10/16/2001 -0800, you wrote:
> > >The Storage Agent is a stripped down version of the TSM server that
> > >allows LAN-free and I think eventually serverless backup of data.
> > >
> > >
> > >--
> > >Joshua S. Bassi
> > >Independent IT Consultant
> > >IBM Certified - AIX/HACMP, SAN, Shark
> > >Tivoli Certified Consultant- ADSM/TSM
> > >Cell (408)&(831) 332-4006
> > >jbassi AT ihwy DOT com
> > >
> > >-----Original Message-----
> > >From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On 
> > >Behalf
Of
> > >Gerald Wichmann
> > >Sent: Tuesday, October 16, 2001 3:07 PM
> > >To: ADSM-L AT VM.MARIST DOT EDU
> > >Subject: storage agent?
> > >
> > >Whats the storage agent download for in the TSM 4.2.1 upgrade? Must be
> > >something new to TSM 4.2 that I'm just not remembering offhand.
> > >
> > >Gerald Wichmann
> > >System Engineer
> > >StorageLink
> > >408-844-8893 (v)
> > >408-844-9801 (f)