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тАО10-21-2010 11:26 AM
тАО10-21-2010 11:26 AM
Re: Overall Performance on P4300 SAS Starter
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тАО10-21-2010 12:06 PM
тАО10-21-2010 12:06 PM
Re: Overall Performance on P4300 SAS Starter
when you're getting 965 IOs and every IO is 8 KB, then you will get round about 8 MB/s.
MB/s = IOPS x IO Size
You can fill a 1 GbE Link in two ways: Big IOs and less IOPS, or small IOs and many IOPS. IOPS is limited by the cache and number of disks.
Regards,
Patrick
Patrick
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тАО10-21-2010 01:19 PM
тАО10-21-2010 01:19 PM
Re: Overall Performance on P4300 SAS Starter
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тАО02-20-2011 11:14 PM
тАО02-20-2011 11:14 PM
Re: Overall Performance on P4300 SAS Starter
I've gone through our vsphere config, and our blade Flex10 config and tested network throughputs with iperf and can max out all data links.
I then setup a basic FTP server and copied a 5 gig file between two VM's and can only get 30-45 MB/s transfer rate.
Since I know the data LAN's can support 2.5Gbps so that's not the bottle neck. The storage network is on a 4.8 Gbps NIC's and is part of the same Flex10 domain.
So far it is looking like the Lefthand cluster, I do not want to configure Multipathing at the moment as we will in the future be going to multi site SAN.
Any help is appreciated.
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тАО06-03-2011 04:27 PM
тАО06-03-2011 04:27 PM
Re: Overall Performance on P4300 SAS Starter
K
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тАО06-17-2011 01:24 AM
тАО06-17-2011 01:24 AM
Re: Overall Performance on P4300 SAS Starter
We have a two node P4300 cluster (SAN iQ 9) with ALB on redundant HP 2910al switches. Clients are two DL380 G7 with ESXi 4.1.
Attached is a screenshot of a robocopy job and of the HP SAN Performance Monitor. As you can see we are able to reach 122 MByte/s (max. for a 1 Gbit/s link is 125 MByte/s).
Source of the robocopy job is a Win2003 server using the MS iSCSI initiator, target is Win2003 server on VMFS.
All volumes are Network RAID 10 (volumes mirrored).
Flow control, jumbo frames and Rapid Spanning Tree are enabled.
Of course this is no IO test but it shows that a P4300 cluster can operate at the max. throughput limit of a 1 Gbit/s link.
Thomas
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