Re: oracle rmap kernel version

From: Dave Hansen (haveblue@us.ibm.com)
Date: Wed Mar 13 2002 - 16:11:01 EST


walter wrote:
> Not sure right off the top of my head. I'm planning on using 2 controllers,
> each from a different manufactures. My reasoning behind this is two fold.
> Number one is in case a "bug" creeps up with one of the drivers I can still
> string all the drives off the other controller. Performance will decrease,
> but I'd rather be slow than dead in the water. The second reason is the
> probability of both controllers failing (hardware) at same time due to a bad
> chip batch at the manufacture. Do you have any suggestions on controllers?
> Adaptec and IBM (not sure which models) ?

I haven't done any of the testing myself. But, I was told that the
Adaptec AIC stuff is good. I think that the LSE patch has been tested
on with Adaptec (aic7xxx) and QLogic fiber channel controllers. I guess
that the QLogic stuff is liked because the drivers are open source.

I was surprised to see that the ServeRAID driver isn't touched by the
lse patch. I thought that it still uses the io_request_lock in 2.4.

Care to add anything, Gerrit?

-- 
Dave Hansen
haveblue@us.ibm.com

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