I have two ESX hosts (3.0.2, 77863), both connected to a Clariion CX40. I have configured the Clariion so that the two hosts can see each other's LUNs (fiber)
After doing a Rescan of the HBAs, I can see the shared LUNs listed in the Storage Adapters tab. However, if I go tot the Summary tab of each host, the shared LUNs are not listed in the Datastore window (nor under the Storage tab) and they are not available when I try to create a VM on the shared LUNs.
When you are referring to "Datastores", were they formatted and prepared under ESX OR just on the SAN side? It appears you exposed the LUNS from the Clarion to your ESX hosts. As a test, go to one of your esx hosts "configuration tab", storage (SCSI, SAN, and NFS), go to "Add Storage", now see if you see the "path" to your exposed LUNS. If they are not formatted as VMFS (unlike NFS), you will not be able to see the "datastore" under Summary.
If you found this information useful, please consider awarding points for "Correct" or "Helpful". Thanks!!!
You need to first create a VMFS on the LUNs then they should be usable for VMs. To do this you will need to select the Configuration Tab of the Host in question. THen select the Datastore link and then the 'Add Storage...' link to get to the wizard to add a VMFS.
If there is already a VMFS on those LUNs, is it VMFS-2?
Edward L. Haletky
VMware Communities User Moderator
Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education. CIO Virtualization Blog: http://www.cio.com/blog/index/topic/168354
As well as the Virtualization Wiki at http://www.astroarch.com/wiki/index.php/Virtualization