Re: 12 Veliciraptors again w/x4 card (~1gbyte/sec aggregate read)!

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From: Justin Piszcz
Date: Monday, July 7, 2008 - 11:37 am

On Mon, 7 Jul 2008, Justin Piszcz wrote:


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.

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Re: 12 Veliciraptors again w/x4 card (~1gbyte/sec aggregat ..., Justin Piszcz, (Mon Jul 7, 11:37 am)