Good Day, On Tue, Apr 23, 2002 at 01:58:23PM +0200, Olivier Poitrey wrote: > Hello, > > I bought a fasttrack 66 IDE RAID card and I can't figure out if it do > an hardward or software RAID. You should check the list archives, cause both questions have been answered over and over... Extract: " > i am looking for a working raid 1 for my pc. I want use a ide hardware based > solution (promise controller). That's a nice contradiction unless you bought a supertrack..... Promise Fasttrak is just software raid with bios help for booting " > > In performance term, what is the best choice between fasttrack and Linux > MD ? As also been answered by Arjan. Please check the list archive... You will find some more usefull experiences with both. Excerpt: ">usually hardware RAID its better but it depends VERY much on the chip >included with the hard controller, also the performance difference depends >on RAID modes used. usually you want RAID-5 (and other checksumming RAID) >to run on hardware cards. > > >> Currently using Software RAID1(Redhat 7.2 + 2.4.16) - works like a charm : >> hot swapped the disk and added a new disk - hotraidadd and the new disk >> rebuilt just fine. >> > >somebody from the xfs-linux list said that he tested software raid and >hardware raid with good hardware cards and he didnt got any performance >boost for stripping raid modes (RAID-0) and mirroring (RAID-1) > >he said he got some performance with RAID-5 BUT that depends on the >controller (i dont think PDC are that good with RAID-5) " Check also for "Subject: Difference ion speed between HW and SW RAID" For the future of this list, I would advise to creating a point of Doc, where information would be centraly stored ... like a FAQ... like this: "http://qmail.3va.net/qdp/index.html";, for example... :), Rui Lapa > > best regards, > > -- > ___________________________________________________________________________ > O l i v i e r P o i t r e y > > > > > _______________________________________________ > > Ataraid-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/ataraid-list
