Yes,  since 
 
- you are replacing ALL the LTO2 drives, and 
- LTO3 drives can both read and write LTO2 tapes
 
..you can just throw in both types of carts.  
 
Note however that you don't get any performance or capacity benefits with LTO3 
drives and LTO2 carts.  But it should sure make your transition easier.
 
Mind the previous reply about firmware, make sure it's current..
 

________________________________

From: ADSM: Dist Stor Manager on behalf of Bill Dourado
Sent: Wed 2/21/2007 6:57 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: TAPEPOOL made up of mixed LTO2 & LTO3 media



Hi,

We are about to replace our  all  HP LTO-2 tape drives by  LTO-3,
in our NEO 4000 library.

My question is,  seeing the new drives can read and write both LTO-2
and LTO-3 media,   can any given  existing tapepool be made up of
both LTO-2 and LTO-3 media ?

My problem is that I don't have enough tape slots in the library and
don't want to introduce a large number of LTO-3 tapes in one go.

Also a few of our LTO-2 tapes are fairly new and it would be a shame
to write them off.

(TSM  Server for Windows 5.3)

Thanks

Bill



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