Upgrade ESX 3.5 to ESX 4.0 san disks not visible on FAS 250

[owiegmann]

We have an Infrastructure with one VC4 and two clusters with 2x 3.5

Hosts and 2x 4.0 Hosts. Both cluster have connection to a netapp FAS

250. After we upgrade the VC the 3.5 Hosts can´t see the disk of the

second LUN and the 4.0 Hosts see the path to both LUNs but don´t show

any disk. VC says that state of path from the 4.0 Hosts are failed.

After many hours reading documentation and whitepapers from Netapp and

VMware i don´t find any solution for our Problem. On 3.5 Hosts i can

connect the disk on the second LUN if i have a single VC session on the

host but not from a VC Session.

What can we do?

[Sreejesh_D]

Try this,(1) Restart VC service http://kb.vmware.com/kb/1003895 and (2) remove and add 3.5 hosts from VC.

:+: VCP,RHCE,EMCPA.

[owiegmann]

Thanks for your answer. I rescan the storage adapter and then the second disk is visible.

[Sreejesh_D]

Nince to hear that your problem is solved. Please feel free to mark the post as helpful if it gave you some new info.

:+: VCP,RHCE,EMCPA.