The esxcli storage core claiming namespace includes a number of troubleshooting commands.

These commands are not persistent and are useful only to developers who are writing PSA plug-ins or troubleshooting a system. If I/O is active on the path, unclaim and reclaim actions fail.

Important: The help for esxcli storage core claiming includes the autoclaim command. Do not use this command unless instructed to do so by VMware support staff.