-----Original Message-----
        From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Weber,
Philip
        Sent: December 19, 2006 12:30 PM
        To: Wessam Aly; Dave Brown
        Cc: veritas-bu at mailman.eng.auburn.edu
        Subject: Re: [Veritas-bu] LTO3 Read/Write LTO2
        
        
        I've also heard that once you've used LTO2 media in an LTO3
drive, you can't then read it in an LTO2 drive.  Not sure where I got
this from though. 
         
        Absolutely 100% false.
        I was worried of the same, so I test the hell out of my LTO3
drives before putting them into prod. I've got 4x LTO2 drives, and 5x
LTO3 drives in each of my two libraries, and 100% LTO2 media.....been
running like that almost a year with no problems.
         
        I've also got some new LTO3 drives having asked for LTO2...so
far they seem to be running slower than the LTO2s as I can't supply data
to them fast enough :-(... time to play with mpx and buffer sizes... 
         
        MPX and number of buffers, yeah, but buffer size should be the
same (256k) for both. 
        Get yourself some fast DSUs, VTLs, or use SAN media servers to
prestage your data......pushing it over 100Meg ethernet isn't going to
do you any favours.
         
        Paul
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