Just one perspective...  How about linking the whole thing together with a
SAN, so that both TSM servers can see both libraries.  You could then
create storage pool, TSM DB backups from each servers into the remote
library.  The DR plan could be created in an NFS mounted volume on the
remote system.  It's simple, and doesn't require handling tapes.  If you
want very fast recovery, you could run a second TSM server on the remote
system, with scripting that recovers the TSM server from the tape as it is
created every day (or more often; you could do incremental backups to NFS
files on the remote system).  This way the remote TSM server is always
ready to run, all you have to do is mark the primary pools destroyed and
start restoring files.



_____________________________
William Mansfield
Senior Consultant
Solution Technology, Inc




                      PAC Brion Arnaud
                      <arnaud.brion@PAN        To:       ADSM-L AT VM.MARIST 
DOT EDU
                      ALPINA.COM>              cc:
                      Sent by: "ADSM:          Subject:  2 servers and 
libraries , 2 sites,              I want super disaster
                      Dist Stor                 protection !
                      Manager"
                      <[email protected]
                      .EDU>


                      02/06/2002 07:09
                      AM
                      Please respond to
                      "ADSM: Dist Stor
                      Manager"






Hi Gurus !

I have a question concerning security : we currently have one TSM server
(H80 AIX server) connected to a 3584 library. As our library reaches
it's capacity limit, we plan to buy a new one, and possibly another
server, to build a double server and  library solution. I'm looking for
an improved disaster-resistant solution, that could give us the
opportunity rebuilding the whole system,  case one server and it's
library would be destroyed.
The actual situation : we do nightly backups, followed by a complete
stgpool backup and dbbackup that are stored offsite. We also own DRM.
What we plan to do : split our backups data over two libraries, to
benefit of the increased tape drives quantity and tape capacity, and to
split DB data over two systems (therefore accelerating expiration
process etc ...). The two server-libraries couples will be installed in
two different locations, to minimize risks in case of fire, earthquake
...
How would you build such a solution, that would give you the opportunity
rebuilding the whole system in case of total destruction of one of those
sites ? Would you use virtual volumes for crossing Dbbackups and STGpool
backups ? Any suggestion will be welcomed ;-).
Thanks in advance !

Arnaud

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