On Wed, May 09, 2001 at 05:51:06PM +0200, Dominik Westner wrote:
> this might well be. I never tried to touch the RAID at all after getting 
> it to work.
> It's a LaCie RAID TX8000 and the documentation really s*cks.
> 
> I still don't quite understand why this should be the case. My 
> presumably naive  assumption is that the RAID got a 16MB cache, which is 
> battery  buffered. It will fill up the cache until it can write a block 
> and then it will write the block, but I am probably far to naive.

Maybe you should try to run more extensive tests (eventually by writing to
the raw device with different block sizes ) ? Maybe the write buffer is
disabled ?
> 
> Looking at the RAID there seems to be thousands of parameters ... :-) 
> and I guess I have to reformat the RAID in order to change the size of 
> the stripes. What would be a reasonable size for a stripe? (Probably 
> something along the r/wsize for NFS, e.g. 8k?)

I'd make it 32k, and use 32k for r/w NFS

--
Manuel Bouyer <bouyer@antioche.eu.org>
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