Device Reservations; Table 5-29 Reserve/Release Management Method - Sun Microsystems storagetek sl500 Reference Manual

FC-4 (FCP) Features

Device Reservations

The SL500 tape library support the Reserve/Release management method and also
the Persistent Reservations management method. These methods are defined in the
ANSI SCSI-3 Primary Commands (SPC-2) standard. For the reservation restrictions
placed on commands for the Reserve/Release management method, see
TABLE
management method, see
Conflict
Allowed

TABLE 5-29 Reserve/Release Management Method

Command
Initialize Element
Initialize Element with Range
Inquiry (12h)
Log Sense (4Dh)
Mode Select (15h/55h)
Mode Sense (1Ah/5Ah)
Move Medium
Persistent Reserve In (5Eh)
Persistent Reserve Out (5Fh)
Position to Element
Prevent/Allow Removal (1Eh)
Read Element Status
Release Unit (17h/57h)
Reported LUNs (A0h)
Request Sense (03h)
Request Volume Element Address
Reserve Unit (16h/56h)
Send Diagnostic (1Dh)
Send Volume Tag
Test Unit Ready (00h)
Write Buffer (3Bh)
82 SL500: Interface Reference Manual • July 2008
5-29. For the reservation restrictions placed on the Persistent Reservations
TABLE 5-30 on page
Command will not be performed and the library will terminate
the command with Reservation Conflict status.
Command will be allowed to execute to normal completion.
83.
Action when Reserved by a different Initiator
Conflict
Conflict
Allowed
Allowed
Conflict
Conflict
Conflict
Conflict
Conflict
Conflict
Prevent = 0, allowed
Prevent = NZ, conflict
Conflict, unless the CurData bit is 1
Allowed, the reservation is not released.
Allowed
Allowed
Conflict
Conflict
Conflict
Conflict
Conflict
Conflict
Revision: F • 96122