Personally .. I haven't been in an environment that needed
or kept data over a year. So for me 1 year is the oldest
data I have in my retention. Normally tape would be sent to disposal
Or overwritten before a 3-5 year import would be possible.
-----Original Message-----
From: Justin Piszcz [mailto:jpiszcz AT lucidpixels DOT com]
Sent: Monday, December 17, 2007 12:00 PM
To: Josef Weingand
Cc: Jackson, Todd; WEAVER, Simon (external); veritas-bu AT mailman.eng.auburn
DOT edu
Subject: Re: [Veritas-bu] Media Tape lifespan
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
>
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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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