The Latest Gartner® Magic Quadrant™Hyperconverged Infrastructure Software
Moderators: anton (staff), art (staff), Max (staff), Anatoly (staff)
Anonymous wrote:Made the changes myself...
Also added
SackOpts = 1
GlobalMaxTCPWindowSize=0x01400000
987Mb/s
Couple of questions though...
1) What settings for IOmeter are you using?
2) When I mount my Raid Drive I can only do so as an ImageFile... is this normal and/or optimal?
Chuck
Chris wrote:It's amazing how TCP optimization can improve performance.
See my other post http://www.starwindsoftware.com/forums/ ... .php?t=225
Now, with TCP tunning, I set TCPWindow to 256K and tuned on all TCP options; now I'm getting 950Mb/s on the same hardware.
I also added 3ware 7504-LP RAID card and 3 200G Maxtor ATA disks, each with 8MB cache in RAID-0 mode on the server.
- Through CIF, when I trasfer large file, I'm getting 45% wite and 50% read sustained network utilization comparing to untuned TCP stack at 30% utilization.
- Through StarWind, I'm only getting 30% utilization using image file. I'm using MS initiator 1.06 because I have some problem with StarPort. StarPort will not reinistialize connection after network disconnect so the only way to get the connection back is to restart the machine.
Image file is the only way to get clustering working, but the preformance is not acceptable. Any comment on the image file portion?
Thanks
Chris
Chris,Chris wrote:It's amazing how TCP optimization can improve performance.
See my other post http://www.starwindsoftware.com/forums/ ... .php?t=225
Now, with TCP tunning, I set TCPWindow to 256K and tuned on all TCP options; now I'm getting 950Mb/s on the same hardware.
I also added 3ware 7504-LP RAID card and 3 200G Maxtor ATA disks, each with 8MB cache in RAID-0 mode on the server.
- Through CIF, when I trasfer large file, I'm getting 45% wite and 50% read sustained network utilization comparing to untuned TCP stack at 30% utilization.
- Through StarWind, I'm only getting 30% utilization using image file. I'm using MS initiator 1.06 because I have some problem with StarPort. StarPort will not reinistialize connection after network disconnect so the only way to get the connection back is to restart the machine.
Image file is the only way to get clustering working, but the preformance is not acceptable. Any comment on the image file portion?
Thanks
Chris
Hi,Anonymous wrote:Upgraded to new version.
Now speed is between 31-33MB/s using image file, still far below 50MB/s through CIFS. Haven't got a chance to use entire RAID array.
Chris wrote:I was copying 1G file over and monitor the bandwidth usage. Over CIFS, it
s 50MB/s, and over remote mounted iSCSI, it's 33MB/s.
I used IOmeter to check it again, now I get 70MB/s write and 50MB/s read on 1MB file.
Chris wrote:I use the latest StarPort and StarWind.
BTW, the 70MB/s write and 50MB/s read is under iSCSI. The reason read is slower must be my client machine's slow single disk config.
Chris wrote:I use the latest StarPort and StarWind.
BTW, the 70MB/s write and 50MB/s read is under iSCSI. The reason read is slower must be my client machine's slow single disk config.
Chris wrote:It's 80MB/s write and 150MB/s read.
Minus network overhead, disk overhead and filesystem overhead (image file), the result is very good,.