- Apr 20, 2009
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Currently running ESXi on an AMD 880 board with an X3 740 (unlocked to X4).
The loads are extremely light, not a lot of data going in and out, so throughput should be roughly wire speed I would figure.
Problem is, I've done some checking last night to get ideas and found the following few things:
1) My RAID5 array has a TERRIBLE write speed (roughly 10MBs). I installed a simple XP VM and ran the ATTO bench mark tool on it, and the best it got was about 10MBs. I then attached a 2TB single disk and ran the tool against that and got normal disk speed numbers (roughly 110MBs).
2) My network upload speed seems to be a max of 25MB/s. 1Gbps should get me close to 120MB/s. The downloads were at 70MB/s or so, which I figured to be fair enough.
At this point, I have tried to the two NICs (one Realtek and one Intel) and both achieve the same speed. This leads me to believe I either have an issue with the cable (which I am hesitant to believe) or a problem with the host software configuration.
As for #1, I need to figure out how to get my RAID controller to let me reconfigure the RAID array. At this point, I want to configure RAID 10 to get away from a parity based array on SATA disks. I still don't think the performance should be this bad on RAID5, but that's what I aim to test.
Any ideas? My next thought is to re-install HyperV 2012R2 and try from there. I'll do this after trying another cable or two, but I am pretty close to doing this anyway just to see.
The loads are extremely light, not a lot of data going in and out, so throughput should be roughly wire speed I would figure.
Problem is, I've done some checking last night to get ideas and found the following few things:
1) My RAID5 array has a TERRIBLE write speed (roughly 10MBs). I installed a simple XP VM and ran the ATTO bench mark tool on it, and the best it got was about 10MBs. I then attached a 2TB single disk and ran the tool against that and got normal disk speed numbers (roughly 110MBs).
2) My network upload speed seems to be a max of 25MB/s. 1Gbps should get me close to 120MB/s. The downloads were at 70MB/s or so, which I figured to be fair enough.
At this point, I have tried to the two NICs (one Realtek and one Intel) and both achieve the same speed. This leads me to believe I either have an issue with the cable (which I am hesitant to believe) or a problem with the host software configuration.
As for #1, I need to figure out how to get my RAID controller to let me reconfigure the RAID array. At this point, I want to configure RAID 10 to get away from a parity based array on SATA disks. I still don't think the performance should be this bad on RAID5, but that's what I aim to test.
Any ideas? My next thought is to re-install HyperV 2012R2 and try from there. I'll do this after trying another cable or two, but I am pretty close to doing this anyway just to see.