No, we don't have a SAN now.  IBM is trying to sell us one.  I am just looking
into ways to incorporate it into our existing configuration before making
a recommendation to my boss.  Our Exchange database is about
40G.  It is being backed up directly to tapes through the LAN to FC 3590E
tape drives in a 3494 and runs for 2 hours.

Eliza

>
> I guess I do not understand why you made the 5 SAN clients SAN if you are
> not going to go directly to tape.  How big is the Exchange Server.  2 Hours
> sounds like a long time for SAN attached 3590s.
>
> The only possible way to do this may be with SANErgy, but I cannot think of
> way to share the disk pool between the SAN and LAN clients right now.
>
> My recommendation for this type of configuration is to use Gigabit in the
> TSM Server and the SAN clients that you have.  It is cheaper and does
> exactly what you are trying to do.  I guess the machines/disk you have are
> just too slow to drive the tape drives to effectively use SAN.
>
> -----Original Message-----
> From: Eliza Lau [mailto:lau AT VTCAT.CC.VT DOT EDU]
> Sent: Thursday, March 14, 2002 11:40 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: HELP with TSM and SAN
>
>
> What I am trying to achieve is to have all SAN and non-SAN clients backup to
> a disk storage pool that is on the SAN and then migrate to the SAN-attahced
> 3494.  We will have 5 SAN clients and 300+ non-SAN clients with only 6 tape
> drives.  I don't want the 5 SAN clients to tie up the tape drives with
> LAN-free backup during the backup window.  The Exchange backup alone takes 2
> hours. Is this doable with a AIX TSM server?
>
> Eliza
>
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
> > Of Eliza Lau
> > Sent: Thursday, March 14, 2002 9:46 AM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: HELP with TSM and SAN
> >
> > >
> > > 1. LAN FREE B/A is available with the Storage Agent in TSM 4.2
> > >
> > > 2. SANergy MDC cannot run on AIX - WIN2k, WINNT, Solaris, Red Hat
> > > and SuSe.
> >
> > Thanks Adolph.  This clears things up.  But there is indeed a SANergy
> > client for AIX.  The Tivoli rep just quoted me a license.  It requires
> > 130 points.  Then why can't I run the SANergy MDC on a W2K box to
> > export the disk storage pool to the AIX SANergy client where the TSM
> > server is.  From this disk storage pool backup files will migrate to
> > the 3494.  The W2K box and the AIX TSM server will both be on the SAN.
> >
> > Eliza, why would you want to do this? What are you trying to achieve?
> > Maybe we should take this off the list server. My email is
> > akahan AT ica DOT net.
> >
> >
> > >
> > > 3. The non-SAN clients can backup to a SAN or non-SAN disk pool. The
> > TSM
> > > server writes to the disk pool, the client does not. If the TSM
> > > server has access to the SAN then I would have all of the 3494 tapes
> > > attached to the SAN. Partitioning the library is not required. All
> > > of my
> > clients
> > > with 3494 libraries and SAN, have all of the drives on the SAN.
> > >
> > > 4. Server Free backup will require the use of a San Data Gateway -
> > this
> > > is a hardware box- The current box available from IBM is a 2108-G07.
> > >
> > > 5. Server Free means both the TSM Server and the Client are not
> > > doing i/o to the disk or tape for backup purposes. This comes with
> > > TSM 5.1. Initially this will be very limited in the clients that are
> > > supported and the TSM server platform.
> > >
> > > Adolph Kahan
> > >
> > >
> >
> > Eliza Lau
> > Virginia Tech Computing Center
> > 1700 Pratt Drive
> > Blacksburg, VA 24060
> > lau AT vt DOT edu
> >
>