Re: A question about RAIT with mixed vtapes, and physical tapes
2006-03-29 16:41:31
On Wed, Mar 29, 2006 at 03:53:26PM +0200, Paul Bijnens wrote:
> On 2006-03-29 14:58, stan wrote:
> >I'm setting up a new system using RAIT with one vtape, and one physical
> >tape in each RAIT set. I only have room on my disks for 5 vtapes, but I
> >have 25 tapes. I would like to just have the last 5 backup sets (one week)
> >on the vtapes at any one time, but rotate through all 25 physical tapes.
> >
> >Can I do this?
> >
> >How can I label just the physical tapes without overwrite the labels on the
> >vtapes?
>
> You can label all 25 vtapes. That does not take significant space.
>
> And with a script you remove the files inside the data directory
> of the vtape when it is no longer needed (effectively erasing
> half of the mirror). But keep the label!
>
> The label is the pair of files starting with number "00000*". Remove
> all the other files of that vtape (files starting with "00001*" etc.
> You may even remove the 0000x*TAPEEND pair of files: it is not strictly
> needed.
>
So, the vtapes stay labeled the same forever, and mismatch the physical tape
labels? How does this affect the indexes?
--
U.S. Encouraged by Vietnam Vote - Officials Cite 83% Turnout Despite Vietcong
Terror
- New York Times 9/3/1967
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