nvme-resv-acquire (1) - Linux Manuals
nvme-resv-acquire: Acquire an nvme reservation
nvme-resv-acquire - Acquire an nvme reservation
nvme resv-acquire <device>
The Reservation Acquire command is used to acquire a reservation on a namespace, preempt a reservation held on a namespace, and abort a reservation held on a namespace.
-n <nsid>, --namespace-id=<nsid>
- Override the nsid field. If using the admin character device, this parameter is required.
-c <crkey>, --crkey=<crkey>
- Current Reservation Key: The field specifies the current reservation key associated with the host. If the IEKEY bit is set to '1' in the command, then the CRKEY check succeeds regardless of the value in this field.
-p <prkey>, --prkey=<prkey>
- Preempt Reservation Key: If the Reservation Acquire Action is set to 001b (i.e., Preempt) or 010b (i.e., Preempt and Abort), then this field specifies the reservation key to be unregistered from the namespace. For all other Reservation Acquire Action values, this field is reserved.
-t <rtype>, --rtyep=<rtype>
Reservation Type: This field specifies the type of reservation to be created.
Value Definition 0h Reserved 1h Write Exclusive Reservation 2h Exclusive Access Reservation 3h Write Exclusive - Registrants Only Reservation 4h Exclusive Access - Registrants Only Reservation 5h Write Exclusive - All Registrants Reservation 6h Exclusive Access - All Registrants Reservation 07h-FFh Reserved
-a <racqa>, --racqa=<racqa>
Reservation Acquire Action: This field specifies the action that is performed by the command.
Value Definition 0 Acquire 1 Preempt 2 Preempt and Abort 3-7 Reserved
Ignore Existing Key: If this bit is set to a
1, then the Current Reservation Key (CRKEY) check is disabled and the command shall succeed regardless of the CRKEY field value.
Indicator option, defaults to 0.
Part of the nvme-user suite