I did much the same thing when I changed to a larger server and 3494 library 
from a tls440 library and smaller server. The way I did it was to set up my new 
server and library then start backing up my clients on the new server. I then 
let the files expire on the old server and library. There was very little 
problems this way and no interrupted service . I looked at as many possible 
ways I could to migrate my setup and this was by far the easiest and least 
painful.The biggest drawback is the physical space requirement for two 
libraries also if a client needs a file on the old server (an inactive version) 
then you have to edit your opt files to access the old server instead of the 
new one. Not exactly a big deal.




s.d.dionisio AT USA DOT NET on 02/14/2000 10:04:29 AM
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Subject:        ADSM Server Migration

Hi All,

My company would now soon migrate from one ADSM server to
another.  Same platform--AIX, but we will be needing to
migrate all our filedata from a one device class (StorageTek
9730) to another (IBM 9434 library with 3590-E1A drives).
Considering the above, what would be the best and the most
efficient way to migrate our ADSM setup, without interrupting
the service it provides to some 50 backup clients.  The only
thing that comes to my mind is the use of EXPORT/IMPORT using
virtual volumes, but I'm now having doubts if this would
really provide uninterruptible service.  Please do note
that we need to move 250+ volumes (35GB each) from our tape
backup storage pool.  It is highly probable that our backup
clients would be backing up new files while the import process
to the new ADSM server is going on.  Would this pose a problem?

Any advice will be highly appreciated.  Advance thanks and
best regards...  Sonny


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