Right, fire up "Shared Drive Wizard" and change one drive from HCART3 to 
HCART2.
Then create storage unit of type HCART2 for all SSO media servers in 
question.
You're ready to restore. I've tested it even with LTO1 -> LTO3.

Later you can change drive back to HCART3 (but you can leave storage units 
for future restores).






"Lewick, Taylor" <tlewick at hrblock.com>
Sent by: veritas-bu-bounces at mailman.eng.auburn.edu
2006-08-09 23:17
 
        To:     <veritas-bu at mailman.eng.auburn.edu>
        cc: 
        Subject:        [Veritas-bu] LTO Gen3 read LTO Gen2 tapes


I have been told repeatedly that Ultrium LTO3 drives can read LTO2 tapes
for restores.

Today we actually have a reason to try this.  Out LTO3 drives are in one
tape library, the LTO2s at another at a different location.

We need to do the restore where the LTO3 drives are located.

We configured the the drives using shared storage option, and the LTO3s
are configure to use media of HCART3, and the LTO2s are configured to
use media of HCART2. 

We loaded the tapes in and tried the restore, but it is failing with
requested number of drives are not available.

Do we need to temporarily change one of the LTO3 drives to be of type
HCART2?  We are thinking that's all we need to do.

Thanks,
Taylor

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