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Native SAN 6.0.5587 Performance Issues
Posted: Wed Jul 17, 2013 8:15 pm
by btoups2
I am having trouble with a cluster. Please see image below.
- starwind.jpg (182.98 KiB) Viewed 12693 times
The test on the left is running from the raw disk. The one on the right is a HA Image.
The cluster is 2 node Windows 2012 (fully patched) with Native SAN 6.0.5587 with the following hardware. Setup per the "Configuring HA Storage for Live Migration on Windows Server 2012" guide.
Network
iSCSI - 10Gb Direct Connect with Intel x540's on both Sides
Sync - 10Gb Direct Connect with Intel x540's on both Sides
Heartbeat - 1Gb Direct Connect with Intel I350 to Broadcom BCM5709C
Management - 1Gb nic to Core Switch on each node
Hyper-V - Nic Team with 2x BCM5709C to Core Switch on each node
Disk
12 disk 1 TB SAS Raid 0
My money is on a simple config issue but I have yet to put my finger on it.
Any help would be appreciated.
Re: Native SAN 6.0.5587 Performance Issues
Posted: Thu Jul 18, 2013 9:25 am
by anton (staff)
1) Do you have loopback acceleration enabled?
2) How much of the write-back cache do you use?
Re: Native SAN 6.0.5587 Performance Issues
Posted: Thu Jul 18, 2013 1:38 pm
by btoups2
1. Its installed, Is there anything required to "enable" it?
2. 2GB on that drive.
anton (staff) wrote:1) Do you have loopback acceleration enabled?
2) How much of the write-back cache do you use?
Re: Native SAN 6.0.5587 Performance Issues
Posted: Thu Jul 18, 2013 7:28 pm
by btoups2
And while I am thinking about it, What is Starwinds position on Cluster Aware Updating.
It seems feasible to me that the updates on the second server could finish and it reboot prior to the resync from the first server rebooting.
Re: Native SAN 6.0.5587 Performance Issues
Posted: Fri Jul 19, 2013 5:55 am
by anton (staff)
1) I'll ask engineers to make sure you do have it working. What OS build do you have? Can you report what cmd says when run?
2) How much memory does the whole system has? Free? Can you provide a Task Manager screeenshot?
btoups2 wrote:1. Its installed, Is there anything required to "enable" it?
2. 2GB on that drive.
anton (staff) wrote:1) Do you have loopback acceleration enabled?
2) How much of the write-back cache do you use?
Re: Native SAN 6.0.5587 Performance Issues
Posted: Fri Jul 19, 2013 5:56 am
by anton (staff)
You're absolutely correct! Should be turned off.
btoups2 wrote:And while I am thinking about it, What is Starwinds position on Cluster Aware Updating.
It seems feasible to me that the updates on the second server could finish and it reboot prior to the resync from the first server rebooting.
Re: Native SAN 6.0.5587 Performance Issues
Posted: Fri Jul 19, 2013 1:31 pm
by btoups2
Build 6.2.9200
Server 1
- Server 1.jpg (123.25 KiB) Viewed 12624 times
Server 2
- Server2.jpg (126.9 KiB) Viewed 12625 times
These servers have 128GB and 96GB respectivly. The cluster is not fully loaded yet, I still have my heavy load VMs running on stand alone until I can resolve this performance issue.
Re: Native SAN 6.0.5587 Performance Issues
Posted: Fri Jul 19, 2013 1:54 pm
by btoups2
Wanted to give a few more details about the hardware.
Server 1
Poweredge R720xd
2x E5-2665
128GB 1600MHz Ram
Perc H710p
2x 300GB - 6Gb SAS - 10k for OS - Raid 1 - Adaptive Read Ahead - Write Back - 64k Stripe Size
12x 1TB - 6Gb NL-SAS - 7.2k for VMs - Raid 0 - No Read Ahead - Write Back - 256k Strip Size
Server 2
Poweredge R710
2x E5-2665
128GB 1600MHz Ram
Perc H700
6x 600GB - 6Gb SAS - 15k for OS - Raid 10 - Adaptive Read Ahead - Write Back - 64k Stripe Size
LSI 9286CV-8eCC connected to Dell MD1220
12x 1TB - 6Gb NL-SAS - 7.2k for VMs - Raid 0 - No Read Ahead - Write Back - 256k Strip Size
Re: Native SAN 6.0.5587 Performance Issues
Posted: Mon Jul 22, 2013 10:53 am
by Anatoly (staff)
May I ask you if you had any chance to benchmark the RAID array and the network separatelly from the SAN?
Here is our Benchmarking Guid that should be helpful in your case:
http://www.starwindsoftware.com/custome ... actice.pdf