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тАО06-10-2010 03:10 AM
тАО06-10-2010 03:10 AM
Overall Performance on P4300 SAS Starter
one of our customer have a new Lefthand P4300 G1 installed. We conneted 2x DL380G6 over 2x Procurve 2900 Switches to the Lefthand for redundancy purposes. The new SANIQ SW 8.5 is already installed including the lates patches. We use Sever Virtualization with Microsoft Hyper-V R2 Server (Core). There are (only) 3 VM guests. The latest MPIO Driver is installed.
With the programm HDTUNE (http://www.hdtune.com/) we get reading performance rates from only 30 to 45 MB/s.
Please help!
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тАО06-10-2010 04:12 AM
тАО06-10-2010 04:12 AM
Re: Overall Performance on P4300 SAS Starter
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тАО06-10-2010 04:25 AM
тАО06-10-2010 04:25 AM
Re: Overall Performance on P4300 SAS Starter
for now we even do not use flow control.
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тАО06-10-2010 05:12 AM
тАО06-10-2010 05:12 AM
Re: Overall Performance on P4300 SAS Starter
IMO I wouldn't trust an application designed for testing local HD performance for testing my SAN's performance.
What are your performance monitor counters reading while you're running this test?
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тАО06-10-2010 05:29 AM
тАО06-10-2010 05:29 AM
Re: Overall Performance on P4300 SAS Starter
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тАО06-10-2010 03:52 PM
тАО06-10-2010 03:52 PM
Re: Overall Performance on P4300 SAS Starter
Give IO Meter a go, I think there's a WhitePaper floating around too somewhere although I cursoru search didn't turn up anything sorry.
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тАО06-10-2010 09:58 PM
тАО06-10-2010 09:58 PM
Re: Overall Performance on P4300 SAS Starter
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тАО06-11-2010 02:03 AM
тАО06-11-2010 02:03 AM
Re: Overall Performance on P4300 SAS Starter
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тАО06-13-2010 11:31 PM
тАО06-13-2010 11:31 PM
Re: Overall Performance on P4300 SAS Starter
I've testet with Iometer with the following settings:
- RAW-Disk 5GB
- 1 worker
- 64 outstanding I/Os per target
- 8KB
- 50/50% Random/Sequential
- 50/50% Read/Write
- 100% Access Specification
I got the followed results (4 tests each):
Host 1:
Total I/Os p. Sec: 965
Total MBs p. Sec: 7,45
Av. I/O Response T: 66
Max.I/O Response T: 1619
Host 2:
Total I/Os p. Sec: 1430
Total MBs p. Sec: 11
Av. I/O Response T: 45
Max.I/O Response T: 3640
What do you say? Should I test with anoter values? Where can I find other results for comparison?
Thanks a lot!!
Mario
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тАО07-23-2010 10:37 AM
тАО07-23-2010 10:37 AM
Re: Overall Performance on P4300 SAS Starter
The NICS on each node are setup in a ALB configuration and split across two HP Procurve 2910 switches for redundancy. There is a 4 x 1Gb trunk between the two 2910 switches. Jumbo Frames and Flow Control is setup across the board.
The hosts are HP blades with 4 x 1Gb trunks from the blade chassis to each of the 2910 switches. We then have ESX 4 running on the blades and Windows 2008 VMs with Microsoft iSCSI initiators connecting directly to the SAN. Everything works fine, the speed is just poor. We've spoken with Vmware and they've checked our ESX configuration and blessed it. We're not seeing an errors on the switches, but as Portuer noted we also only get about 30 to 45 MB/s. Before we turned on Flow Control and Jumbo Frames we only got 15-23 MB/s. Not quite what we where hoping for based on the investment made.