That's exactly what we did - the same hcart type. Similarey when we get LTO3 media then we will differentiate. Early day(s).
Cheers Jim
On 3/28/06, Paul Keating <[EMAIL PROTECTED]> wrote:
Yes, Jim, that has been my experience.We put our new LTO3 drives in the same robot as our existing LTO3 drives, and all media is LTO2, all drives and media are configured as "HCART2"If they are not configured the same, (ie, you configure HCART2=LTO2 and HCART3=LTO3) NBU will not put an LTO2 tape in an LTO3 drive.the idea is to maintina backward compatibility....the LTO3 drive writes to the LTO2 tape as if it were an LTO2 drive, so that if the tape is later inserted into an LTO2 drive it will continue to be able to be read from and written to.once you add LTO3 tapes, you then need to change the config of the LTO3 drives to type "HCART3" and make sure all LTO3 tapes inserted into the library are configured the same, otherwise you will end up with all sorts of problems when NBU puts a LTO3 tape in an LTO2 drive.Paul-----Original Message-----Hi
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Jim McD
Sent: March 26, 2006 7:19 AM
To: Veritas-bu@mailman.eng.auburn.edu
Subject: [Veritas-bu] LTO3 Tape Drives and LTO2 media - no improvement
Is this correct ?
My understanding is when LTO-2 tapes are put into a LTO3 tape drive the tape drive takes on all the attributes of an LTO2 tape drive hence transfer rates, density, etc are identical to an LTO2 tape drive. Hence in a library you can have mixed LTO-3 & LTO2 tape drives and if all the media is LTO2 media then you will see no difference. Only when you start using LTO3 media then things will get better for both backup and recovery.
Apparently LTO-3 tapes have a smart-card type of chip in them.
Regards Jim
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