ZFS obn FreeBSD hardware model for 48 or 96 sata3 paths...
jusher71 at yahoo.com
Mon Sep 19 18:52:21 UTC 2011
--- On Fri, 9/16/11, Rich <rincebrain at gmail.com> wrote:
> To get full bandwidth SATA 3 from 48/96 drives, that's 750
> MB/s * 8/10
> (8 data bytes per 10 bytes transmitted raw - SATA 3 does an
> encoding) ~ 600 MB/s * 48/96 = 28800/57600 MB/s
> PCIe 2.x is 500 MB/s per lane, so that's 57/114 lanes of
> PCIe 2.x to
> do full bandwidth.
> And that all assumes you have sufficient memory bandwidth
But does that exist ? I do not see any motherboards with even 64 lanes of pcie 2.0, much less 128 of them ... I'm seeing 32 @ pcie2.0 ...
I guess 7 slots @ 16x would be 112 lanes, yes ? I just don't see a board like that in existence...
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