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Adding a storage LUN in ESX/ESXi fails with the error: Object reference not set to an instance of an object (2037650)

Cannot add a storage LUN in ESX/ESXi
Cannot create a VMFS volume in ESX/ESXi
Creating a VMFS volume fails
You see the error:

An internal error occurred in the vSphere Client.
Details: Object reference not set to an instance of an object
Contact VMware support if necessary

This issue occurs if the size of the presented LUN is 2048 GB, whereas the maximum size supported in ESX/ESXi 4.x is 2048 GB - 512 bytes.

To resolve this issue, replace the presented LUN with another LUN with a maximum size of 2048 GB - 512 bytes.

It is recommended to use a LUN with a maximum size of 2047 GB.

For more information, consult your storage vendor.

For more information, see Configuration Maximums Guide.

<pre>10/23/2012 - Added LUN to title and symptoms </pre>

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.

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