18.104.22.168 SCSI-3 Persistent Reservations
Certain methods in the interface require the server and a disk to fulfill the SCSI-3 protocol [SPC-3], particularly with respect to persistent reservations. Therefore, for a successful outcome to these methods, it is necessary that method-ordering requirements of the SCSI-3 protocol [SPC-3] be followed.
For a particular disk, assuming that the server behaves correctly as an initiator and the disk behaves correctly as a target, a client SHOULD adhere to the following sequencing for successful execution of methods:
CprepDiskPRRegister SHOULD be called before CprepDiskPRReserve.
CprepDiskPRReserve SHOULD be called before CprepDiskPRPreempt.
CprepDiskPRClear SHOULD be called before CprepDiskPRRegister when used as part of a persistent reservation sequence as follows:
CprepDiskPRReserve SHOULD be called before CprepDiskPRRelease.
CprepDiskPRClear3 SHOULD be called before CprepDiskPRRegister3 when used as part of a persistent reservation sequence as follows: