I know it's supported, and the Admin Guide doesn't say very much about the 
actual mechanics and pros/cons of doing it, but I have a
client that has a 3853 with 3-LTO1 drives. They have a very specific 
application that requires large capacity, but a limited budget.
They are looking at adding a single LTO-3 drive to the existing library and an 
additional storage column. Searching the archives I
did run across a post about having to use the specific FORMAT=ULTRIUMx instead 
of FORMAT=DRIVE to create 2 separate device classes.
Then define a storage pool for the LTO-3 and direct this high capacity 
application to that stgpool.



Anyone willing to share real-world experiences on defining the environment and 
any problems encountered??



They are running 5.2.3.0 on AIX 5.2. I know I need to bring them up to 5.2.4.0 
for LTO-3 support plus upgrade the Atape drivers.



Bill Boyer

"Growing old is mandatory, growing up is optional" - ??