Ran into a minor issue with Uber that has been here ever since Uber was moved from cresskill to northvale ESXi hosts. Decided to look into it.
The symptom was that northvale (or any of the ESXi hosts) never recognized shared storage on Uber and showed the Datastores as grayed out. This would also cause the VM's using the shared storage to be disconnected and inaccessible.
After some investigation this morning, it was found that the 2nd network card in Uber VM, that connects the iSCSI and NFS shared storage to the back door Gig-e would not come up without a forced sudo ifup eth7 command to bring it up.
We first attributed this to a race condition of the northvale host coming up completely and doing it's scan for storage before the launch of Uber. This may still be the case for iSCSI.....
Anyway, for those following along, you will remember that all VM's were moved from the utility host (cresskill) to northvale since we needed to move to Win2k8 x64 for vCenter Server and cresskill does not support x64 VM's.
Uber was the last to be moved. When a Ubuntu VM is moved, the NIC cards become different eth numbers. Some fun was had (and documented) getting the correct eth numbers set on Uber. The file "/etc/network/interfaces" on Uber had to be modified to update the eth numbers after the move. Of course, there was a typo in the update for eth7, causing it to fail to load at boot.
Once corrected, Uber's back door Gig-e was loading properly. After a reboot, northvale now recognizes the NFS and iSCSI shares from Uber once Uber is up.
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