I can't configure MPIO in ESX 4.0.
In server installed 2 HBA Qlogic QLE2560
Server connected to Storage. One LUN crated on storage.
In ESX 3.5 LUN is available from both HBA(see vmw1.jpg) and in "Manage Paths" Window I can see 2 paths(see vmw1.jpg)
In ESX 4.0 LUN is available only from one HBA(see vmw3.jpg). In in "Manage Paths" Window I can see only 1 path.
How can i configure MPIO in ESX 4.0?
It should work the same.
Have you done a rescan? And checked the masking/zoning is correct?
Until the second HBA can see the LUN you won't be able to configure round robin.