SANergy moves well-known file sharing from LAN to SAN. If you forget for a
moment about SAN all the features are as of LAN file sharing.
So many clients can mount the filesystem but only one can write to
particular file at the moment. Even a hundred hosts can write
simultaneously but to hundred separate files. Every client locks its file
on write preventing others to read garbage. And exchange of those file
locks goes through good old LAN.

So for today you have a possible scenario:
Client backups to shared FILE pool through SAN; Server backups and migrates
data from file pool to tape pool. When TSM 5.1 becomes available we can
hope it will allow the latter to happen without big TSM server involvment.
The server will initiate the process and the SAN devices (will this be the
switch, or a router) will move the data. This would free the TSM server FC
adapter (and prevent it to become bottleneck moving data back and forth).


Zlatko Krastev
IT Consultant






Wouter V <wouter-v AT EASYNET DOT BE> on 15.11.2001 20:39:40
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: Clarifications: LAN Free ( SAN ) Backup

So : "A FILE devclass device may be in use by only one party.",  means only
one client a time can backup to
the SAN-disk device ?  The SAN disk is shared, is "available" for every
client, but can not be used concurrent
by every client ? Wright ?

Wouter.