Messages in this thread | | | Date | Thu, 24 Aug 2006 02:47:21 +0900 | From | Tejun Heo <> | Subject | Re: Hardware vs. Software Raid Speed |
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Andre Tomt wrote: > Marc Perkel wrote: >> Running Linux on an AMD AM2 nVidia chip ser that supports Raid 0 >> striping on the motherboard. Just wondering if hardware raid (SATA2)
SATA2 has nothing to do with hardware RAID.
>> is going to be faster that software raid and why? > > Beeing a consumer type board (AM2), the "raid on the motherboard" is in > 99.999% of the cases just software raid implemented in their Windows > drivers, a bootup setup screen plus some BIOS magic to get the OS booting.
And, yeah, they're all software RAID. Also, there isn't much to be gained from making RAID0/1 hardware. The software overhead isn't that big. For RAID5, having XOR done in hardware helps.
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