andy0789

As an update to this, if you are using 64-bit you will need to modify HKLM\Software\Wow6432Node\Microsoft\Active Setup\Installed Components This will take care of the "Personalize Settings" window during logon. Thanks

Continuing on with the 7110 Performance, I have attached a link to a report of my I/O operations per second. I am still stumped as to why my iSCSI, NFS, and SMB operations remain low but the Disk I/O is always around 2000 ops/sec. What are the disks doing? Is it due to the raid level (Double Parity Raid)? Any insight would be appreciated. http://www.asgsolvesit.com/images/SUN7110Perf.jpg

I was looking at both Datastore and Virtual Disk, the one I documented below is for the datastore. Both showed improvement, mostly with write latency. In my environment I have two of the 1GbE interfaces on the 7110 using LACP over 2 interconnected Cisco 3750 switches. These two interfaces are dedicated to VLAN 11 for our ESX servers to use NFS or iSCSI. When I created a LUN on the 7110 I enabled the "write cache" feature. I think if you start with a datastore using NFS, put load on it, specifically writes and see what your latency is, then switch to iSCSI with "write cache" enabled on the 7110 LUN and compair the two. If you are like me, you will see the write latency drop.

Just as a followup for the 7110, I switched one of my virtual machines from NFS to iSCSI with write cache enabled and have seen significant speed improvements. VMWare was reporting the following averages before and after the switch (taken from the same time period on seperate days): NFS Datastore 140ms Write Latency 80ms Read Latency iSCSI Datastore 14ms Write Latency 34ms Read Latency Still could do better but atleast it is an improvement. Changing the pool to Mirror instead of Double Parity Raid could only increase performance. 7110 on 2010.08.17.2.0,1-1.18

They state to try using Chrome

I use the 7110 as well. I have not had much luck with it as far as write latency goes with my VMs. I did have a Citrix XenApp farm running off of it for about 2 days until I had to move it to local storage on the XenServers, ruining my HA, because of the horrible latency the users were experiencing. I primarly use NFS with the exception of a couple Exchange datastores using iSCSI. Network utilization is low and I am also using LACP/trunking. We are also looking for a new NAS/SAN solution. I am interested in getting the 7320 and moving the 7110 to a remote site making use of the remote replication functionality to create an off-site disaster recovery location. I think I screwed the pooch with the 7110 since the beginning choosing Double Parity Raid for the pool, which I think killed my write performance. If I were to use this in a DR scenario and change the pool to RAID 10/Mirror, you think I could pull some decent performance out of this thing for around 15 VMs, 4 of them being terminal servers, 2 SQL servers, 1 Exchange server, and other various small VMs. I'm not looking for native performance since it would be a DR scenario but usable performance. Depending on when during the month the DR happens the SQL servers are not that hard hit. Love all the features of the 7110, but so far write latency is a big problem for me.