> -----Original Message-----
> From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
> [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf 
> Of Aleksandr Nepomnyashchiy

> Is it a bad practice to mix LTO3 and LTO4 drives in the same 
> tape library?

Not at all.

> 
> 
> How I would be able to accommodate such a setup?

As per the technote you posted below.
Separate storage Units configured with appropriate unique densities.

> 
> Page 217 in the NBU Administration Guide
> http://support.veritas.com/docs/290203 sounds discouraging:
> 
> ========= quote ==========
> Drives with different densities must be in separate storage units.
> Consider an STK SL500 library that is configured as a Tape Library DLT
> (TLD). It can have both half-inch cartridge and DLT drives. Here, you
> must define a separate storage unit for each density.
> =======end of quote ========
> 

Library != Storage Unit.
Do a little more reading to understand the definition of a Storage Unit
and how they are used.

Paul
====================================================================================

La version française suit le texte anglais.

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