I seem to remember that slow, or stop-start data rates to the drive can 
significantly reduce the amount of data on tape.

just a thought

Aleksandr Nepomnyashchiy wrote:
> Dear NetBackup Gurus,
> 
> I have inherited installation of NetBackup 3.4 with Sun L1000 library
> and DLT7000 drives.
> 
> My tape drive type is set to DLT. At the moment I am getting 30-40G
> per DLTIV tape (with compression - using /dev/rmt/0cbn Solaris device
> ).
> 
> 
> Looks like NetBackup 3.4 supports DLT , DLT2 and DLT3.
> 
> Should I change my tape drive to DLT3 ? Will I be able to get more
> data per tape?
> 
> Thank you,
> Aleksandr
> 

-- 
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Wellcome Trust Centre for Neuroimaging
+44 (0)207 833 7496
www.fil.ion.ucl.ac.uk
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