Use the esxcli command to obtain information about the locking mechanism that a VMFS datastore uses.

In the procedure, --server=server_name specifies the target server. The specified target server prompts you for a user name and password. Other connection options, such as a configuration file or session file, are supported. For a list of connection options, see Getting Started with vSphere Command-Line Interfaces.

Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started with vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.

To display information related to VMFS locking mechanisms, run the following command:

esxcli --server=server_name storage vmfs lockmode list .

The table lists items that the output of the command might include.

VMFS Locking Information

Fields

Values

Descriptions

Locking Mode

Indicates the locking configuration of the datastore.

ATS-only

The datastore is configured to use ATS-only.

ATS+SCSI

The datastore is configured to use ATS, but can revert to SCSI if ATS fails or is not supported.

ATS upgrade pending

The datastore is in the process of an online upgrade to ATS-only.

ATS downgrade pending

The datastore is in the process of an online downgrade to ATS+SCSI.

ATS Compatible

Indicates whether the datastore can be configured for ATS-only or not.

ATS Upgrade Modes

Indicates the type of upgrade that the datastore supports.

None

The datastore is not ATS-only compatible.

Online

The datastore can be used during its upgrade to ATS-only.

Offline

The datastore cannot be used during its upgrade to ATS-only.

ATS Incompatibility Reason

If the datastore is not compatible with ATS-only, indicates the reason for the incompatibility.