I have used LTO-2 media in the LTO-3 drives.  It works just fine, but the LTO-3 
drive has to be set up to (defined in NetBackup) as an LTO-2 drive.  Just make 
the HCART designations match.  

It may also help if you have to restore an "old" tape and only have the LTO-3 
drives.

I don't seperate the media into pools based on media type.  I just have the 
storage units for faster policies (long fast data streams) set to use a SU set 
up as LTO-3.

NetBackup is happy to have both tape types in the same pool.

-------------- Original message -------------- 
From: "Adams, Dwayne" <AdamsDC at medsch.ucsf.edu> 

Bobby,
 
How do you mange the different tapes once they are in the library?  Do you 
start the tapes in the pool that you would use them in instead of the scratch 
pool?  I am assuming that the LTO2 media is not appropriate for all your jobs. 
Do you have both LTO2 and LTO3 drives in the same library? Do you use LTO2 
media in LTO3 drives?
 
Dwayne Adams
 
 



From: bobbyrjw at comcast.net [mailto:bobbyrjw at comcast.net] 
Sent: Tuesday, April 10, 2007 10:44 AM
To: Adams, Dwayne; veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] mixed media in the same library
 
I have the both in the same library at multiple locations.  If you define them 
at HCART2, they show as HCART2.  If you define them as HCART, then they show as 
HCART.  You have to define them as the same media type as you defined the LTO-3 
tape drives.  That must be different from the LTO-2 tape drives.
 
The biggest headache is that unless you started out using the last 2 digits of 
the bar code in your tape label names, you can not make a bar code that will 
distinguish between LTO-2 and LTO-3 media.
 
The first time that you inject a new piece of media that is not set as your 
default media in your bar code rule, you will have to over-ride the media type.
 
Bobby.
 
 
-------------- Original message -------------- 
From: "Adams, Dwayne" <AdamsDC at medsch.ucsf.edu> 
Hello,
 
Quick question. .. Does anyone use LTO2 and LTO3 media in the same library 
because of a mandate from management?  Are there any gotchas? Does LTO3 media 
still appear as HCART2?
 
Thanks in advance.
 
Dwayne Adams
 
 
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