I just got a new (used) Mac Pro with an Apple raid card and 2 300GB 10k hard drives. I want to setup the 2 10k's in raid 0, but have a raid + 1 using two other drives (2 500gb 7200) to give me a 600GB raid 0+1 array using the 4 disks
My question is: Will using the slower (and bigger) drives for the mirrored part slow down the fast access given by the 2 10k drives? I figured that the mirrored drive is for writes only and that the internal write cache would handle it, but I am not sure.
All 4 drives are SATA
2x300GB Western Digital Velociraptor 10,000 RPM drives
2x500GB Hitachi Deskstar 7200 RPM Drives