On Tue, 2008-07-15 at 21:41 +0200, Keld Jørn Simonsen wrote: > On Wed, Jul 16, 2008 at 12:06:09AM +1000, Ben Martin wrote: > > Hi, > > Apologies if posting this here is inappropriate but a recent article > > of mine compares the Linux Kernel RAID code to an $800 hardware RAID > > card and might be of interest to list members: > > > > http://www.linux.com/feature/140734 > > Thanks for this! I have written about it on the wiki. Excellent :) > > I see that the Adaptec has a mode 1E which looks a lot like Linux > raid10,o2. It could be fun to compare these, and also raid10,f2. I'd also like to compare the 5EE type modes as RAID-6 does bring a fair degradation of performance for its two failure protection. > > Also, if you wish, it would be nice to see what can actually be achieved > without the expensive Adaptec card, that is what can be done with the > controller on the mobo, with arrays with 4 disks. I was actually a bit worried that the card was geared toward middle tear as there are more performance oriented cards around (including the commensurate price). > > And also if the mobo controller has raid types, what could be achieved > with this.... This would be very interesting. Taking a common middle level P45 board and benchmarking the mobo RAID vs the kernel RAID. > > best regards > keld
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