On Thu, 2005-06-23 at 12:09 +0200, Arjan van de Ven wrote: > On Thu, Jun 23, 2005 at 03:33:41PM +1000, Brock Lessels wrote: > > i am currently running dmraid on gentoo linux. the system uses a sata > > sil3114 card with 4 drives running raid01 the only issue is that the > > install takes alot of fiddling and i have 6 more machines to get up > > and running. > > > > firstly could anyone tell me if there is any performance issues using > > software raid rather than the cards raid format? > > the linux software raid is such that it should be able to get higher > performance. the raid card formats all have a "deficiency" that is caused by > them raiding a whole disk not a partition, and that causes some problems > that in turn can lead to slower performance. Why would RAID'ing an entire disk be a performance problem relative to RAID'ing a partition (for example, a whole-disk partition, except for the first block)? Thanks!
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