6/3gbps / Asmedia / Too many drives

Soldato
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Hello all

Just a quick note for reference, and some questions. Hoping this might provide data to people in a similar situation.

Mobo: RIVE with 2 Intel 6G sata, 4 Intel 3G sata, 2 Asmedia 6G sata
Drives: Samsung 840 250, 2 x Corsair LS 128, 1 OCZ ARC100 480, 1 Seagate hybrid 4TB

When I put this together it was just the Samsung and the Seagate - logical choice to have them both in the 6G Intel, then I bought more drives (it's a mental problem, I have 15 SSD's in various builds I buy them like toys) and added them in as best I could, relying on the 6G of the Asmedia ports. I was not getting decent performance, and in some cases real problems. I have the Asmedia ports on 2 other machines, and on 1 the TCPIP stack corrupted, machine wouldn't boot every time, random hangs etc. On the RIVE the Peer Networking Resolution Service and NVStream have recently corrupted.

Have read a lot about problems people have with Asmedia (maybe down to it's single PCIE connection, but that doesn't feel like a corruption/hang issue to me) I've started to move things around. On advice I'm only running mechanical drives off Asmedia ports (would do for optical if I had any internal ones) and things have become much smoother for me.

Anyway that's the reason for the move on the main PC and below are the results. I know it's only benchmarks but it's a consistent measure.


Now on to the questions.

1) You will see from the image that the Sequential read and writes are way down which is to be expected on the 3G sockets, but I thought (could be wrong) but the 512 and 4K's were more indicative or real world OS performance?
2) If that is the case in people's real world experience have I got away with Sata 3G (to some degree)?
3) Can anyone suggest better config? (Bear in mind, the Asmedia 6G ones were not performant and the suspect in a corruption case or 2.)
4) Will RAID 0 on the 2 3G Corsairs simply saturate (rather than "adding together" or duplexing) the bus and keep me at the same speeds?

I know to buy big drives btw, but these bred like rabbits.

Thanks in advance
 
Whilst not directly answering your question, I've recently picked up a LSI2208 based (PCI v2 x 8) raid controller with the very purpose of moving some of my SATA SSD's on to it.

I've played around and put 4 x 6GB/s ssd's in RAID 0 and got ~2000Mb/s read and ~1400Mb/s write. Haven't tested any JBOD (standalone) disks yet.

I did manage to pickup the raid controller from Amazon for a very healthy £70, 8 x internal ports, 1GB DDR3 cache, PCI v2 x 8.

Alternatively if you are not interested in raid a HBA maybe a good way forward.
 
Thanks for the reply.

I actually tried it on another build, AMD 760 (sata 2) and 2xHyperx sata 3 drives in raid 0 gave reads about 500 so it does "duplex" in this case.

Cheers
 
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