Related question on this - has anyone done a business case /  
justification that stacks up - migrating legacy tape data to new  
formats versus just keeping the old tapes ? Its a lot of work to  
migrate the tapes as David indicates, and potentially you may never  
need to restore any of the historic data.

Regards
Mark
-----------
On 24 Aug 2009, at 19:44, David McMullin wrote:

If you ARE thinking of copying old tape to new tapes - here are some  
thoughts!

1. if your old tapes are multiplexed you might want to look into  
copying them to a disk or VTL then to a tape, since the shoe shining  
you experience is horrible if you try to copy tape to tape, unless you  
keep the multiplexing.

2. I am copying some backups from 2006 (~ 3 years old), and  
experiencing some increased failure rates, as well as drive issues  
with these tapes that have sat at iron mountain for 3 years.

3. Plan on it taking some time! AND those drives not being available  
during that time!

>
>
> ------------------------------
>
> Message: 12
> Date: Sat, 22 Aug 2009 15:58:14 -0400
> From: Jorge F?bregas <jorge.fabregas AT gmail DOT com>
> Subject: Re: [Veritas-bu] Transition from LTO1 to LTO4
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Message-ID: <200908221558.15149.jorge.fabregas AT gmail DOT com>
> Content-Type: text/plain;  charset="iso-8859-1"
>
>
>> Have you looked at your data to see if it's feasible to keep your old
>> library long enough to duplicate your long-term retention data to  
>> LTO4
>> and then get rid of the LTO1s when you've duped everything that  
>> hasn't
>> already expired?
>
> That sounds like a nice mini-project.  I totally agree and will look  
> forward for doing it. The fact that I can consolidate, at least,  
> about (8) LTO1 tapes into (1) LTO4 tape is pretty tempting!
>
>> This may well reopen up another favorite topic: retention and the  
>> costs/logic/risks in keeping and trusting the usefulness and  
>> recoverability of old data.
>
> I Agree :)
>
> All the best,
> Jorge
>
>
> ------------------------------

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