SCSI Commands: 25BPERSISTENT RESERVE IN Page 116Field Bytes Bits Descriptioninitiator holding the persistent reservation that requests atransfer from the initiator to the storage medium or cacheof the logical unit shall be terminated withRESERVATION CONFLICT status.3h = Exclusive AccessReads Exclusive: Any task from any initiator other than theinitiator holding the persistent reservation that requests atransfer from the storage medium or cache of the logicalunit to the initiator shall be terminated withRESERVATION CONFLICT status.Writes Exclusive: Any task from any initiator other than theinitiator holding the persistent reservation that requests atransfer from the initiator to the storage medium or cacheof the logical unit shall be terminated with RESERVATIONCONFLICT status.5h = Write Exclusive – Registrants OnlyReads Shared: Any application client on any initiator mayinitiate tasks that request transfers from the storagemedium or cache of the logical unit to the initiator.Writes Exclusive: A task that requests a transfer to thestorage medium or cache of the logical unit from aninitiator that is not currently registered with the deviceserver shall be terminated with RESERVATIONCONFLICT status.6h = Exclusive Access – Registrants OnlyReads Exclusive: A task that requests a transfer from thestorage medium or cache of the logical unit to an initiatorthat is not currently registered with the device server shallbe terminated with RESERVATION CONFLICT status.Writes Exclusive: A task that requests a transfer to thestorage medium or cache of the logical unit from aninitiator that is not currently registered with the deviceserver shall be terminated with RESERVATIONCONFLICT status.3.13.2 PERSISTENT RESERVE IN Completion StatusCode Message Description00h Good Status • The drive is ready to perform any appropriate command.02h Check Condition Use the REQUEST SENSE command to retrieve status information.Possible Sense Keys are:Code Message Description05h Illegal Request The Command Descriptor Block is invalid.
