Under Navisphere Server Software Downloads I found:

Navisphere Host Agent (Windows) 6.28.20.1.40
Navisphere Host Agent (Windows) 6.28 Software Download.
exe 37.3 MB April 23, 2009

Don't see x86 or x64, so don't believe they are separate.

-Ryan

Yes, it has been rebooted more than once since PP installation. Should I try an uninstall/reinstall of PowerPath?

This looks like a PPath issue. Did you reboot the host after the PPath installation ?

Normally you should only get 1 disk per LUN in diskmanager when PPath is installed. Sometimes you need to reboot the host (yes, it is still Windows). But when you already rebooted the host and you're still getting extra LUN's, I don't know.....

What are the host LUN adresses for the 4 LUN's you presented to this host ? If no LUN 0 is connected to the host, the Clariion will present a LUN 0 for you. Make sure there is a Host LUN 0 for each host (in the storage group).

The Host ID's in the storage group are set to match the LUN ID number. (LUN 28=Host ID 28). Should I disconnect these LUN's from the storage group and add them back with Host ID's 0-3?

you only need 1 HLU 0 (host lun unit). Try changing the HLU for just 1 LUN to 0. I think this should work.

Thanks guys. I just wanted to make sure I wasn't missing anything. I've got the Navi agent and PowerPath installed on my x64 server, and I have presented 4 LUN's to it in Navisphere. However, when I go into Disk Management to format the drives, I am seeing 8 drives presented. The first 4 are showing up as unreadable, and then the next 4 are showing the sizes that I presented to the server. When I open Properties of the unreadable drives, it shows them as DGC LUNZ Multi-Path Disk Device. I'm not really sure why these unreadable drives are showing up.

You're welcome

Thanks RRR. That solved the issue. Now we only see the 4 presented drives.