You can delete a virtual disk.
Important
Deletion is a destructive operation, and any VM or data on the virtual disk will be lost.
Procedure
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Make sure that:
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the client or application is not accessing the virtual disk, and
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the virtual disk has been unmapped or had its export removed from the ESXi host.
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On the Virtual Disk Management (VDM) page, click the ellipsis (...) to the left of the desired virtual disk, and select Delete.
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In the Delete Virtual Disk dialog:
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If the disk is currently being accessed by an initiator, select the box next to Force.
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Select Run to delete the virtual disk
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