Cannot reconnect my LUN shared with no format.

Hi all

I need your help, because I have a big problem, I expose it to you:

I have two ESX 3.5U3 and a SAN with 3 Mon.

Lun0 is the main, it's with all my virtual machines logic unit number this LUN has been shared between ESX 1 and ESX2.

Today, I stopped in my vm and stop ESX1 and ESX2 guest. When I rebooted, the LUN mapping has been removed.

On the san, a cautionary note my that the host mapping has been killed.

I've recreated the mapping on the SAN, rescan on the ESX, ok, they see my LUN0, but when I want to add the existing LUN, my ESX want the format of the logical unit number.

How to add the LUN0 without format the LUNs, or a solution to extract my vms?

Thanks a lot for your help

David

Extend your LUN?  Did you change the LUN after extension on the LUN?  As long as you don't try to go and change settings on the expanded LUN, your data should be in tact.  However, given that the disc has "changed", it is perceived as a different LUN, allowing adjustment that I spoke with.  Also, you cannot extend a VMFS in the method you tried.  What will happen is that there will be a blank space after the end of your existing VMFS.  The VMFS itself not may be extended, even if the LUN can be extended.

-KjB

VMware vExpert

Tags: VMware

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