Is the LTO not like DLT where one has to specify device to use to get
correct density (at least in UNIX environments)? I know that in the
past I had to find the device with correct major/minor when writing to
an older DLT on a newer drive in order to be sure I could read that DLT
on the older drive.
That is to say does just specifying drive type in NetBackup sufficient
or is it not important to insure the correct device file is mapped?
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Bobby
Williams
Sent: Friday, November 02, 2007 6:03 AM
To: 'A Darren Dunham'; Veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] LTO3 and LTO2 compatibility
As stated below, the LTO-3 will not work in an LTO-2 drive. It will not
physically fit.
You can put an LTO-2 media into the LTO-3 drive and write to it.
However,
you need to change the drive definition in NetBackup for that drive to
be
hcart2 (or whatever is not in use). You HAVE to have the LTO-2 tape
media
defined the exact same way as the drive that you are going to put it in.
You will also have to define a storage unit with this newly defined tape
drive type. Duplication uses storage units as the targets.
It is not a hard thing to do.
Bobby Williams
2205 Peterson Drive
Chattanooga, Tennessee 37421
423-296-8200
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of A Darren
Dunham
Sent: Thursday, November 01, 2007 5:34 PM
To: Veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] LTO3 and LTO2 compatibility
On Thu, Nov 01, 2007 at 04:11:57PM -0500, Major, Rusty wrote:
> I need to send some tapes to a site with LTO2 drives. Unfortunately,
> we are running LTO3. Will they still be able to read these tapes?
No. Backward compatibility isn't usually possible. The LTO3 format
will
have a higher density than the older drives can work with.
> If this won't work, if I duped them to LTO2 MEDIA, but still written
> from an LTO3 drive, would that be compatible with the LTO2 drives on
> the other end?
Yes, it should.
--
Darren Dunham ddunham AT taos DOT com
Senior Technical Consultant TAOS http://www.taos.com/
Got some Dr Pepper? San Francisco, CA bay area
< This line left intentionally blank to confuse you. >
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