RN3220 / RN4200 Crippling iSCSI Write Performance

Hi mdgm,

  Thanks for replying,

I have installed 6.7.3 as advised and rebooted.

Going from 9000/1500 on the Netgear, 9014/1514 on the hypervisor yields a more stable sequential file transfer when moving the test VM back in (102GB). It broadly sits between 580 and 660Mbps, predominatly over 600Mbps. This is on 1x1GbE Netgear side. Max Rx on eth2 on the Netgear states 76.7MB (613.6Mbps).

Here is an off thing though, I've set the eth2 IP address to 192.168.171.1 on 1500 MTU and then rebooted the array. Yet, i can still ping 192.168.171.1 with a 8000 byte ICMP echo. ARP confirms that it is talking to the correct NIC.

I've set the hypervisor to 1514

Jumbo Packet                   Disabled                       *JumboPacket    {1514}

Rebooted the hypervisor.

Inside the CSV:

Not in a CSV (E:\ as a local iSCSI mount) - this was painful as the array had to copy from and to itself via the Hypervisor. The hypervisor was receiving and sending on the NIC at 380Mbps, the Netgear eth2 says 43.6MB. A larger burst variance was visible during the copy, between 230 and 480Mbps.

Max values on the NICs have dropped to 55.8MB, which would presumably be down to the lack of 9K