Hello,
I have an Issue with my PT/1000 CT NIC. I bought them because the internal Realteak NIC won't work for iSCSI.
Now I set up the NAS and connect them via iSCSI to my ESX Hosts and I got a really poor performance.
I did some testing with iperf between die esx hosts and the nas and found this behavior.
From ESX to NAS (Realtek NIC):
From ESX to NAS (Intel PT/1000 NIC):
From NAS to ESX (Realtek NIC):
From NAS to ESX (Intel PT/1000 NIC):
I have an Issue with my PT/1000 CT NIC. I bought them because the internal Realteak NIC won't work for iSCSI.
Now I set up the NAS and connect them via iSCSI to my ESX Hosts and I got a really poor performance.
I did some testing with iperf between die esx hosts and the nas and found this behavior.
From ESX to NAS (Realtek NIC):
Code:
[root@esxi02:/opt/iperf/bin] ./iperf -c 192.168.10.201 -t 30 -i 5 ------------------------------------------------------------ Client connecting to 192.168.10.201, TCP port 5001 TCP window size: 32.5 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.10.217 port 24660 connected with 192.168.10.201 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 560 MBytes 940 Mbits/sec [ 3] 5.0-10.0 sec 560 MBytes 940 Mbits/sec [ 3] 10.0-15.0 sec 560 MBytes 940 Mbits/sec [ 3] 15.0-20.0 sec 560 MBytes 940 Mbits/sec [ 3] 20.0-25.0 sec 560 MBytes 940 Mbits/sec [ 3] 25.0-30.0 sec 560 MBytes 940 Mbits/sec [ 3] 0.0-30.0 sec 3.28 GBytes 940 Mbits/sec
From ESX to NAS (Intel PT/1000 NIC):
Code:
[root@esxi02:/opt/iperf/bin] ./iperf -c 10.6.6.1 -t 30 -i 5 ------------------------------------------------------------ Client connecting to 10.6.6.1, TCP port 5001 TCP window size: 32.5 KByte (default) ------------------------------------------------------------ [ 3] local 10.6.6.3 port 55975 connected with 10.6.6.1 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 123 MBytes 206 Mbits/sec [ 3] 5.0-10.0 sec 114 MBytes 191 Mbits/sec [ 3] 10.0-15.0 sec 118 MBytes 199 Mbits/sec [ 3] 15.0-20.0 sec 120 MBytes 202 Mbits/sec [ 3] 20.0-25.0 sec 99.1 MBytes 166 Mbits/sec [ 3] 25.0-30.0 sec 104 MBytes 175 Mbits/sec [ 3] 0.0-30.0 sec 679 MBytes 190 Mbits/sec
From NAS to ESX (Realtek NIC):
Code:
root@freenas:~ # iperf -c 192.168.10.217 -t 30 -i 5 ------------------------------------------------------------ Client connecting to 192.168.10.217, TCP port 5001 TCP window size: 32.8 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.10.201 port 40324 connected with 192.168.10.217 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 449 MBytes 754 Mbits/sec [ 3] 5.0-10.0 sec 449 MBytes 753 Mbits/sec [ 3] 10.0-15.0 sec 448 MBytes 752 Mbits/sec [ 3] 15.0-20.0 sec 449 MBytes 754 Mbits/sec [ 3] 20.0-25.0 sec 449 MBytes 753 Mbits/sec [ 3] 25.0-30.0 sec 449 MBytes 754 Mbits/sec [ 3] 0.0-30.0 sec 2.63 GBytes 753 Mbits/sec
From NAS to ESX (Intel PT/1000 NIC):
Code:
root@freenas:~ # iperf -c 10.6.6.3 -t 30 -i 5 ------------------------------------------------------------ Client connecting to 10.6.6.3, TCP port 5001 TCP window size: 32.8 KByte (default) ------------------------------------------------------------ [ 3] local 10.6.6.1 port 11672 connected with 10.6.6.3 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 128 KBytes 210 Kbits/sec [ 3] 5.0-10.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 10.0-15.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 15.0-20.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 20.0-25.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 25.0-30.0 sec 0.00 Bytes 0.00 bits/sec [ 3] 0.0-32.6 sec 128 KBytes 32.2 Kbits/sec
