Prevent/Allow Medium Removal; Table 6-69 Prevent/Allow Medium Removal Command - Sun Microsystems storagetek sl500 Reference Manual

Prevent/Allow Medium Removal

Prevent/Allow Medium Removal
The Prevent/Allow Medium Removal command (1Eh) requests that the library
enable or disable operator access to the cartridge access port (CAP).
If allowed, the CAP may be unlocked and opened using the operator panel.
■
If prevented, the CAP cannot be unlocked or opened.
■
This command is independent of device reservations if the Prevent bit is 0.
The library keeps Prevent/Allow data on a per-initiator basis. If any initiator has
set a prevent state, the library prevents anyone from opening the CAP.
During power-on and following a reset, all initiators are set to an allow state,
which enables operator panel access to the CAP.
The Prevent/Allow Medium Removal command has no effect on the Pass- Thru-
Port; it can only be used to affect access to the CAPs.

TABLE 6-69 Prevent/Allow Medium Removal Command

Byte 7
0
1
2
3
4
5
Prevent/Allow Medium Removal Command Definitions:
Prevent Bit
180 SL500: Interface Reference Manual • July 2008
6 5
Operation Code (1Eh)
Ignored
Reserved (00h)
Control Byte (00h)
The Prevent bit values are:
0 = The library allows operator panel access to unlock and open the
■
indicated CAP.
1 = The library prevents access to the indicated CAP.
■
Bit
4 3
Reserved (00h)
Reserved (00h)
Reserved (00h)
2 1 0
Prevent
Revision: F • 96122