Not complaining, but trying to figure out how this is working. We have a new PS6210xs in a group with a PS6000 attached via 1Gb switches to esxi 5.5 hosts. I moved a Windows 2008 R2 TS guest to the 6210 and left an iscsi data volume on the 6000. The vm has MPIO set up in HIT/ME. I did a folder copy from the iscsi volume to the local drive and got about 60 MB/sec (according to the windows file copy window), which is maybe a bit low but better than we got on just the 6000.

I moved the data volume to the 6210 and did the same folder copy. This time, 700 MB/sec. I know the Windows speed is a pretty rough benchmark, but the folder did copy in about 10 seconds instead of about 90. Since 700 MB/sec (yes, MB, not Mb) is way faster than 2 1Gb ports should be able to handle, is there some sort of Offload Data Transfer taking place? I did this through the windows gui, so I didn't run any special eql commands, and it's 2008 R2, not server 2012. Also, I did the same type of copy job on another 2008 guest with the vm and data vol on the 6210 and got a copy speed of 160 MB/sec, which is more like what I expected.