Re: hot swapping

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Richard Barrington wrote:

I've seen IDE drive cages for sale, and they claim to be hot swappable. Eg: http://www.dse.co.nz/cgi-bin/dse.storefront/en/product/XH6038%0A


Promise has it's line of cages which appear to work with their ata controllers too: http://www.promise.com/product/superswap_list_eng.asp

I'm thinking of it in a RAID 1 scenario... The Promise cage make me wonder,
how much is in software, and how much is in hardware? Could we write a driver
to do some of this stuff (also use smart to determine failures etc).



The promise fasttrak is nearly all software. The oss ataraid driver doesn't do hotswap last I looked at it. Now wether it works with Promise's drive I don't know.




Richard Barrington wrote:


Anyone know ( if || how well ) ataraid supports hot-swapping failed
drives? What considerations are there here?



This is a controller, and as much as a driver issue. None of the controllers using the ataraid driver support hotswap. The 3ware controller supports hotswap if you use the 3dm or the cli. Hot swaping jbod drives is much more complex on the 3ware.













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