after update esx host 3.5 u4 Targets on the storage array are visible but one or more LUNs are not.

[SteeveLavoie]

after update esx host 3.5 u4 Targets on the storage array are visible but one or more LUNs are not.

The SAN is IBM DS4300.

Emulex : Emulex® 4GB FC Single-Port PCI-E HBA (IBM P/N 42C2069)

[LEslinger]

Not alot of information there. This is the best i got. This is written for windows server but it still applies...just accordingly for ESX.

Troubleshooting Fiber Channel Server to Device connectivity

http://networkadminkb.com/kb/Knowledge%20Base/SAN/Troubleshooting%20Fiber%20Channel%20Server%20to%20...

[SteeveLavoie]

I send i print screen on my problem..

i check the config , SAN, HBA, Zoning.... OK

After update ESX Host to 3.5.0 199239 ....

[SteeveLavoie]

After update to ESX 3.5.0, 199239.

HBA EMULEX 42C2069

I send a print screen whith exemple....

Thanks

[LEslinger]

No error messages in the VI Client / Virtual Center? I would check the Server Logs as well.

VMWare ESX Server and VirtualCenter Server Log Files

[LEslinger]

Look at this post.

I had this issue with a cluster earlier this year, one node would see the disks, but the other node would not. I needed to allow ESX to resignature the LUN so both nodes would recognize it. I think this may be your best bet.

[SteeveLavoie]

Hello everyone,

I finally found my problem. The problem was that the server thathosted the esx 3.5 was reused for a Windows 2003 server thathas taken possession of the disc and changed the MBR disks ...vmware support team has corrected the problem.

thank you all