On Mon, 7 Jul 2008, Justin Piszcz wrote:
Each PCI-e x1 card has 1 veliciraptor on it now. Got an x4 card wit 4 sata ports: Not quite the > 1 gbyte/sec I was hoping for in regards to the reads but pretty close!
Going to remove one of the drives from the x1 card and put it on the x4 card instead, then I will use all 4 SATA ports on the x4 and hopefully get better bw. If you look at 7,8,9 there is little improvement: (PCI-e x1) 7 VR 2 6 160 46744 6599020 44688 0 0 748204 17 3042 9084 0 34 40 26 3 6 160 46592 6598824 44372 0 0 747520 8 2975 9047 1 33 31 36 8 VR 2 7 160 46512 6598612 44580 0 0 761184 16 3089 9937 0 36 40 24 2 7 160 44528 6600392 44360 0 0 759720 8 2993 9522 0 36 36 28 9 VR 2 8 160 47152 6596824 44572 0 0 767016 0 3075 9730 1 37 39 24 2 7 160 46576 6597728 44688 0 0 771200 0 3032 9568 0 37 40 23 But once I hit the drives on the x4 card, vroom vroom! 10 VR 0 10 160 45048 6598240 44428 0 0 889072 8 3599 11561 0 47 20 33 2 10 160 45232 6598116 44772 0 0 890112 0 3495 11547 0 46 23 31 11 VR 4 8 160 45536 6594716 44600 0 0 996352 0 3947 12134 1 62 13 25 2 9 160 45348 6594912 44096 0 0 1009152 0 3949 11949 0 63 10 28 12 VR 6 8 160 45092 6583136 47016 0 0 1063200 0 4187 12394 1 71 9 21 3 11 160 47080 6578492 47588 0 0 1058412 0 4224 12547 1 72 8 20 Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
