Quote Originally Posted by 'Sarduci',index.php?page=Thread&postID=70834#post7 0834
RAID 5 has faster than single drive read rates, slower than single drive write rates. RAID 0 has faster than single drive write rate, slower than single drive read rates. Raid 1 is slower read and write rates than single drive speeds.

Whatever your doing, keep the above in mind.
That is a lot of generalisation going on right there ;)

Ok for this audience you are likely correct but with decent hardware raid cards / cache etc it is a lot less clear cut. A single disk can't utilise all the bandwidth available on a SATA 3Gb/s or even SCSI 320 bus, given a decent RAID controller you can get performance that exceeds a single disk performance on both read and write on both RAID 1 and RAID5 and if you can afford RAID0 or 10 you will see significant benefits.

NOTE: Afford in that last sentence is for data integrity in RAID0 and hardware cost in RAID10