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Mega RAID 9XXX will do quite well. Using 9266 on our nodes currently and they are performing great
Do note there have been reports of issues with LSI cards and the 840s. @Nick_A could probably tell you more than i can.
We're using the Adaptec 6405s, and we're getting about the same speed as @Nick_A on Serverbear's dd test.
I wouldn't use Pros anymore.
Any issues with them?
Hell drive
@Brandon: Did you happen to try it out without a RAID card?
An issue with mdadm raid is that there's not enough i/o bandwidth to handle mdadm's psychotic checking with mechanical drives. I think that this would not be a problem with SSDs.
I'm interested to see if 4x SSD in SW RAID 10 would be viable, or not.
@Damian I'm going to try it
@Damian the problem with 4x SSDs in soft RAID 10 would be that most motherboards come with only two SATA3 ports, so two of the SSDs would be on SATA2 ports which would be the limiting factor for the max speed.
SATA 2 is theoretically 3GB/s, which could work.
Yes, SATA2 gives a practical maximum of about 280MB/s. Modern SSDs can do (at least theoretically) 550MB/s. So SATA2 would be limiting their maximum speed.
Wait, so when it says Sata 2 on a motherboard, it's 3GBits, not 3GBytes? It's a scam I tell you!
@mnpeep Of course it's 3 gigabits per second
SATA1 = 1.5 gigabits / second
SATA2 = 3 gigabits / second
SATA3 = 6 gigabits / second