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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?<br />
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~coolsport00
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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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Yes &nbsp;and this is only RAW device mapped drives that this happens on.
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Yes  and this is only RAW device mapped drives that this happens on.

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Is the RDM virtual or physical mode? See this KB that might give an explanation on potential RDM issue:<br />
<a href="http://kb.vmware.com/kb/1005241" rel="ugc nofollow">http://kb.vmware.com/kb/1005241</a>
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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 [http://kb.vmware.com/kb/1005241]

does this LUN show us as the same LUN# on each host?

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That is probably the cause, then. &nbsp;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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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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virtual disk 'hd1' is mapped direct-access LUN that is not accessible.<br />
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This is error I get while trying to Vmotion vm to other esx servers<br />
Any ideas
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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

mapped direct-access LUN that is not accessible

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.