Poll:

What is the oldest tape you have restored from? 1 year? 3 years? 5+?

Justin.

On Mon, 17 Dec 2007, Josef Weingand wrote:

The LTO Specs says:
Long-length durability:         260 full file passes
Short-length durability:        5000 load, unload, and initialization
cycles
Limited lifetime warranty: ?
Archive live:           up to 30 years

Some vendors gives some enhanced specs, like IBM LTO cartridges:
Long-length durability  300 full file passes
Short-length durability         20 000 short section durability passes
Load/unload             20 000 load/unload cycles
Limited lifetime warranty 5 years (manufacturing defects only)
Archive live:           up to 30 years

Mit freundlichen Grüßen / Kind regards
Josef Weingand
Senior IT Specialist
Technical Sales Systems Storage

Mobil +49 171 55 26 783 - Homeoffice Tel. +49 8845 757421
Fax +49 171 13 5526783
email: weingand AT de.ibm DOT com
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From:
"Jackson, Todd" <c-todd.jackson AT invitrogen DOT com>
To:
"WEAVER, Simon \(external\)" <simon.weaver AT astrium.eads DOT net>,
<veritas-bu AT mailman.eng.auburn DOT edu>
Date:
14.12.2007 16:27
Subject:
Re: [Veritas-bu] Media Tape lifespan



Yes it does help. Currently this concern is for auditing purposes for a
tape destruction plan.
Normally I would use until it dies but here it is regulatory needs. I was
thinking of setting
a lifespan between 500-1000 mounts. NB has it set to stop using after 5000
mounts but I need
a decent number and wondering if 1000 is expecting a bit much for audits.


From: WEAVER, Simon (external) [mailto:simon.weaver AT astrium.eads DOT net]
Sent: Friday, December 14, 2007 10:20 AM
To: Jackson, Todd; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Media Tape lifespan

Well unless you get problems, then continue to use them where possible.

As soon as I get read / write issues, then its time to throw away....

Lifespans of tapes (especially LTO) isnt straight forward as it may seem.
I think the estimate life is 20 - 30 years. But by then, we would be on
LTO17 or something like that!

Also, manufacturer of tape may come into question. As a guess, if the tape
is using 300+ mounts, then your getting good serious use out of the tape.

Hope this may help....
Simon
-----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 Jackson,
Todd
Sent: Friday, December 14, 2007 3:16 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Media Tape lifespan

How long should you use a media tape such as Quantum LTO2 tapes?

There is no standard concerning this but I have read a few different
opinions.
I would think mounts would be more important then writes because reading
a tape can be just a strenuous to the tape as writing to the tape.

If anyone has something in place for tape destruction please share
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