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Re: DB copying : Attack of the Clones!

From: Jared Still <jkstill_at_cybcon.com>
Date: Fri, 19 Jul 2002 07:18:21 -0800
Message-ID: <F001.0049C9A8.20020719071821@fatcity.com>


On Thursday 18 July 2002 19:08, Deshpande, Kirti wrote:
> All these databases are on HDS disk arrays. I have been playing with HDS'
> ShadowImage product for some other project. I have suggested using this
> product for solving this problem. But, I am not an authority on this
> product. My idea being, the 'split' disks (from sort-of 3rd mirror) will
> become the clones. When the clones need refreshing, those disks will be
> 're-silvered' and 'split' again. Other thing I may consider is the hot
> backup. But, I am sure it will be shot down as being too time consuming.
>

Kirti,

Though splitting a 3 way mirror is very fast, you still must copy the data to the clone destinations. This operation is going to take a lot of time, and there doesn't appear to be a way around it.

You may want to talk to your Veritas Rep, they have some very cool volume mgt software that may help.

A 4 week implementation window eh? The PHB's must be on a 17 year cycle, like the Cicada's. There seem to be more than usual.

Or maybe more appropriately like the 7 year cycle of Rabbits. Now they just need a hungry predator to thin them out.

Jared

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Author: Jared Still
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Received on Fri Jul 19 2002 - 10:18:21 CDT

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