Our SAN controllers craped themselves and the IBM tech had to restore from the metadata and run some scripts to rebuild the SAN. Good news is all the data is there but our ESX hosts cannot view the datastores and therefore all VM are in an inaccessible state.
When viewing the Storage configuration of a host there is nothing in the "Datastores" view (accept for some local mirrored drives) but clicking on the "Devices" view reveals all the LUNs.
The SAN is running on one controller at the moment and the replacement controller is on the way (next 2hrs). I dont believe this will fix the issue of not being able to access the datastore but worth a mention none the less.
We ran this command:
esxcfg-volume -l
All the LUNs appeared the same as the sample below:
VMFS3 UUID/label: 884d5asd4as5d-5sd4a56456-545-54654/VMFS_1
Can Mount: Yes
Can Resignature: Yes
Extent Name: naa.5456456ad4asd4d46dasd4:1 range: 0 - 784512 (MB)
We have lodged a support ticket with VM Ware about this issue and are still waiting to hear from one of their technicians.
Happy to wait until the tech calls with instructions but thought I would post here to see if anyone could advise of some read-only checks i could do to narrow down the issue.
Thanks