Quote Originally Posted by Sailindawg View Post
Thanks Ket. That Rocketraid card, the 2640x4, caught my attention because it was not very expensive. Sub $100 if I remember correctly. However, I decided to pass because one cannot specify the stripe size on a stripe array. That was my reasoning for wanting a seperate raid card. I wonder if it's more the card itself than the P67 chipset or E4 board. Unfortunately, I don't have a raid card to test.
Yes, the stripe is fixed at 64kB.
The proper reason for buying this kind of the devices over the integrated controllers should be:
- you've got access to SMART attributes of each drive forming every array/logical volume.
- you can define separate arrays of different raid levels on the same set of disks.
- You got decent performance with raid-5, especially in the volume-degradated scenario (intel ICH10 is a joke).
- portability
- spare drives and spare areas
- mail notifications of errors and warnings
Do not even bother with buying a sub300$ hardware/fake RAID card without own cache for decent random performance. Only sequential.

As of the argument:
"if it was a problem with either Asrocks boards or the P67 chip itself there would be many people complaining about it."
Please try to find in the Internet any and I mean any person with Asrock P67 board using hardware raid card with or without success. Good luck. This is simply a niche market. Nobody reports because (almost)nobody uses.
Please try to find anyone using Asrock P67 with hardware PCI or PCIe DVBs(2) SAT card. Good luck too. The same applies.