I can't speak directly to LTO-3, but we've seen almost 4x compression on 
our LTO-2 with our larger Oracle databases.  (Networker 7.1.4 on Solaris 9 
w/ FC-native LTO-2 drives)

Jeff Mery - MCSE, MCP
National Instruments

-------------------------------------------------------------------------
"Allow me to extol the virtues of the Net Fairy, and of all the fantastic
dorks that make the nice packets go from here to there. Amen."
TB - Penny Arcade
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Dave Mussulman <mussulma AT UIUC DOT EDU> 
Sent by: Legato NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
04/04/2006 08:57 AM
Please respond to
Legato NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>; Please 
respond to
Dave Mussulman <mussulma AT UIUC DOT EDU>


To
NETWORKER AT LISTSERV.TEMPLE DOT EDU
cc

Subject
[Networker] 1.2TB LTO3?






I got a sales flyer in the mail today for an LTO-3 Ultrium drive that
does 1.2TB/tape and 160MB/s.  In our environment, I've seen our drives
stream at near 160MB/s, but I've never seen any of our tapes get the 3x
compression 1.2TB offers.  Scanning through the library, I'd say our
average is around 650GB/tape with a few in the 750GB area.

Is it just my data, and are other groups seeing more than 2x
compression?  Anything close to 3x?

Dave

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