Re: [Veritas-bu] Media Tape lifespan

That may be about right for LTO - I'd have to check the web but I would say you could have thousands of mounts for an LTO tape. 300+ is pretty good, and is probably the starting point for a tape to start getting some good use.

But I am no real expert. Like I said, you could use one tape, with horrendous problems, and end up chucking it after 10 mounts.

Alternatively, one tape could provide 5000+ mounts, and be trouble free :-) Many companies may have tapes with double or treble this figure!

Normally, manufactures of LTO's product a data sheet for life span of tapes, cycles ect. May be worth looking into.

FYI I have a tape with over 700 mounts - no problems so far.

-----Original Message-----
From: Jackson, Todd [mailto:c-todd.jackson AT invitrogen DOT com]
Sent: Friday, December 14, 2007 3:23 PM
To: WEAVER, Simon (external); veritas-bu AT mailman.eng.auburn DOT edu
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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