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mapped direct-access LUN that is not accessible


virtual disk 'hd1' is mapped direct-access LUN that is not accessible.

This is error I get while trying to Vmotion vm to other esx servers
Any ideas
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johnemyers
Asked:
johnemyers
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1 Solution
 
coolsport00Commented:
Is the storage available on all hosts involved in the VMotion process? In other words, is the storage on host1 that the VM is on be seen on host2 that you're VMotion'ing the VM to?

~coolsport00
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johnemyersAuthor Commented:
Yes  and this is only RAW device mapped drives that this happens on.
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coolsport00Commented:
Is the RDM virtual or physical mode? See this KB that might give an explanation on potential RDM issue:
http://kb.vmware.com/kb/1005241
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johnemyersAuthor Commented:
Virtual
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Danny McDanielClinical Systems AnalystCommented:
does this LUN show us as the same LUN# on each host?
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johnemyersAuthor Commented:
No
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Danny McDanielClinical Systems AnalystCommented:
That is probably the cause, then.  Even though ESX 4.x uses NAA's for most operations, vMotion still uses the LUN # to identify the LUN's from host to host.
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Danny McDanielClinical Systems AnalystCommented:
vmotioning a virtual machine with rdms fail due to a lun number mismatch across hosts (http://kb.vmware.com/kb/1011450)
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johnemyersAuthor Commented:
Thanks
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