Table
Code | Name | Description | |
|
| READS: Shared; any application client on any initiator may execute commands that | |
|
| perform transfers from the disk to the initiator. | |
0h | READ Shared | WRITES: Prohibited; any command from any initiator that performs a transfer from | |
the initiator to the disk results in a reservation conflict. | |||
|
| ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve the logical | |
|
| unit, extents, or elements as long as the persistent reservations do not conflict with any | |
|
| reservations already known to the device server. | |
|
| READS: Shared; any application client on any initiator may execute commands that | |
|
| perform transfers from the disk to the initiator. | |
| WRITE | WRITES: Exclusive; any command from any initiator other than the initiator that | |
1h | holds the persistent reservation that attempts a transfer to the disk results in a reserva- | ||
Exclusive | tion conflict | ||
| |||
|
| ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve the logical | |
|
| unit, extents, or elements as long as the persistent reservations do not conflict with any | |
|
| reservations already known to the device server. | |
|
| READS: Exclusive; any command from any initiator other than the initiator that holds | |
|
| the persistent reservation that attempts a transfer from the disk results in a reservation | |
|
| conflict | |
2h | READ Exclusive | WRITES: Shared; any application client on any initiator may execute commands that | |
perform transfers to the disk from the initiator. | |||
|
| ||
|
| ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve the logical | |
|
| unit, extents, or elements as long as the persistent reservations do not conflict with any | |
|
| reservations already known to the device server. | |
|
| READS: Exclusive; any command from any initiator other than the initiator holding | |
|
| the persistent reservation that attempts a transfer from the disk results in a reservation | |
|
| conflict. | |
|
| WRITES: Exclusive; any command from any initiator other than the initiator holding | |
| Exclusive | the persistent reservation that attempts a transfer to the disk results in a reservation | |
3h | conflict. | ||
Access |
| ||
| ADDITIONAL RESERVATIONS: Restricted; any PERSISTENT RESERVATION | ||
|
| ||
|
| OUT command with the Reserve service action from any initiator other than the ini- | |
|
| tiator holding the persistent reservation results in a reservation conflict. The initiator | |
|
| that holds the persistent reservation can reserve the logical unit, extents, or elements | |
|
| as long as the persistent reservations do not conflict with any reservations already | |
|
| known to the device server. | |
|
| READS: Shared; any application client on any initiator may execute commands that | |
|
| perform transfers from the disk to the initiator. | |
|
| WRITES: Shared; any application client on any initiator may execute commands that | |
|
| perform transfers to the disk from the initiator. | |
4h | Shared Access | ADDITIONAL RESERVATIONS: Restricted; any PERSISTENT RESERVATION | |
|
| ||
|
| OUT command with the Reserve service action from any initiator other than the ini- | |
|
| tiator holding the persistent reservation results in a reservation conflict. The initiator | |
|
| that holds the persistent reservation can reserve the logical unit, extents, or elements | |
|
| as long as the persistent reservations do not conflict with any reservations already | |
|
| known to the device server. |