Hi, I'm having a terrible time configuring iSCSI hba's for multi-pathing in ESXi 5. It is working fine on ESXi 4, so I am trying to duplicate that same config on two new v5 hosts (DL385 G7).
Each of the VMkernel ports are configured to use a single vmnic (one active, one unused)
Each vmhba has two paths to the storage (vmhba34 and vmhba36 in this case). Where vmhba34 has static discovery IP's to the storage at 10.1.10.12 and 10.1.10.13. vmhba36 has static discovery IP's to the storage at 10.1.20.12 and 10.1.20.13. (the SAN unit is a p2000 G3 with 4 nics)
After I initially add the static discovery, then rescan all, I see all FOUR paths show up to each LUN - two for each hba. As soon as I reboot the server, only two paths are available which are through vmhba34. vmhba36 shows ZERO paths or LUN's even if I rescan.
If I remove the static discovery IP's and add them back, I can see all FOUR paths again until I reboot. NOTE: If I create a separate vSwitch for each VMkernel port, then all works well even after reboot.
Is this a known issue in ESXi 5? Are there any drawbacks to using separate vSwitches for each VMkernel port? Any help is appreciated as I'm losing my hair!