Tandberg Data SLR AUTOLOADER PROGRAMMER, Руководство пользователя, Страница: 31 / 62

Tandberg Data SCSI Commands
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Tandberg SLR Autoloader SCSI Functional Specifications 2-25
2.6.7 Library Mode Page 23h
The library mode page (23h) is defined as follows:
Bit
Byte
7 6 5 4 3 2 1 0
0 PS Reserved Page Code (23h)
1 Additional Page Length (2h)
2 TapeAlrt Reserved Recirc UnldMd Library Mode
3 Reserved
PS Bit
A Parameters Savable (PS) bit of one indicates that the supported parameters can be
saved.
TapeAlrt
A TapeAlert (TapeAlrt) bit of zero indicates that TapeAlert reporting is
disabled. A TapeAlert bit of one indicates that TapeAlert reporting is
enabled.
Recirc
A Recirc bit of zero indicates that the library does not recirculate if set to
sequential mode (Library Mode 001b). In sequential non-recirculate mode,
the library will stop autoloading cartridges after unloading the last
cartridge in the stack. A Recirc bit of one indicates that the library will
recirculate if set to a sequential operating mode. In sequential recirculate
mode, the library will loop back to autoload the first cartridge in the stack
after unloading the last cartridge.
UnldMd
An Unload Mode (UnldMd) bit of zero indicates that the operating mode of
the library is Implicit Unload. An UnldMd bit of one indicates that the
operating mode of the library is Explicit Unload. If the library is set to
Explicit Unload mode, the specified tape drive must be in the unloaded state
before attempting to issue a MOVE MEDIUM command with the tape drive
as the source element address. If the library is set to Implicit Unload mode,
it is not necessary for the specified tape drive to be in the unloaded state
before issuing the MOVE MEDIUM command.
Library Mode
The library mode field indicates the current operating mode of the library.
Library Mode Description
000b Random
001b Sequential Drive 1
010b-111b Reserved