Reference Guide

Chapter 4 SCSI Commands
PERSISTENT RESERVE IN Command (5Eh)
DLT-S4 Interface Reference Guide 209
PERSISTENT RESERVE IN Command (5Eh) 4
The PERSISTENT RESERVE IN command is a 10-byte command used to
obtain information about persistent reservations and registrations active
in an DLT-S4 tape drive. This command works with the
PERSISTENT
RESERVE OUT
command.
Figure 108 PERSISTENT
RESERVE IN Command
Descriptor Block
—Data Format
Table 114 PERSISTENT
RESERVE IN Command —
Field Descriptions
Bit
7 6 5 4 3 2 1 0
Byte
0 Operation Code (5Eh)
1 Reserved Service Action
2 — 6 Reserved
7 — 8
(MSB)
Allocation Length
(LSB)
9 Control
Field Description
Service
Action
The following service action codes are available. All other values are reserved.
Code Name Description
00h Read Keys Reads all registered reservation keys.