After a power down on a HP-UX 11v31 machine the operating system sees all LUNs coming from a CX4 Clariion, but powermt display dev=all doesn't see any LUNs. On the Clariion in Unisphere I'm seeing the paths as active after the OS was booted, so the SAN is ok as well (all zones are correct).

We tried several scanning commands, but powerpath still doesn't see any LUNs.

• rmsf -x (to delete possible stale disks)
• powermt check force
• ioscan -fnNC disk
• insf -e -C disk
• powermt config
• powermt display dev=all

We tried rebooting the server, but although the OS seems to detect the LUNs, PowerPath doesn't see anything.

Does anyone have a clue what might be going on here?

PS I'm not an HP-UX guru, so be gentle with me here