Busy Xenserver 5.5 NICs
I've got two identical Sun X4150s in a Xenserver pool. I have two NICs in a bond for general network traffic (0&1) and two in a bond for iSCSI traffic (2&3) on a seperate VLAN.
NIC 2&3 are in a bond and NIC 3 on both boxes seem really busy all of the time even when non of the VM's on each box are doing anything. When I look in Xencenter it shows NIC 3 'Receive' as being busy, it seems to of been like this for at least the last day.
The iSCSI link connects to a 7110 SAN which isn't doing anything at the moment so i can't see what would be sending the traffic and that's all that's in the iSCSI VLAN.
Short of restarting the Xenservers I'm not sure where to go to troubleshoot this.