On Wed, 13 Sep 2000, Gregory Leblanc wrote: > The StrongARM chips all have hardware xor instructions, whereas only 1 of > the i960 chips have that. This makes StrongARM RAID 5 computations faster, > but I don't have any xor benchmark information available to tell how much If I remember the pages correctly, the Adaptec 2100S uses software xor, but the 3200S and 3400S have the i960 with hardware xor. > xor data each chip can push. Unless you're using bloody fast drives, I > think either chip should keep up. The i960 on my card can certainly keep up > with 3 UW 10MS SCA SCSI drives in a RAID 5. Drives are 9GB, iirc. HTH, I've found the i960 on the Mylex 150 to be a rather disappointing performer on writes in RAID5 (5 IBM 7200RPM drives, no hot spare). For something like a high volume mail server, I don't think any of the low end Mylex cards will cut it. ---------------------------------------------------------------------- Jon Lewis *[EMAIL PROTECTED]*| I route System Administrator | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________ - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [EMAIL PROTECTED]
