HP C1537A, Technical Reference Manual

Page: 51 / 62

Tables of Switch Settings 51
Ta
ble
s o
f Swit
ch
Se
tting
s
Autoloader Option Switch Settings
With the autoloader switched off the following configurations can be set.
Other settings are currently not used. LUN 0 is the embedded drive, LUN 1 is
the autochanger mechanism.
Switch 4 is ignored by the firmware.
Write Zero FM SCSI recommends using Write Zero Filemarks to flush the data buffer to tape. Some
HP drivers do this before closing, even if the tape is write-protected.
3
Allows Write Zero Filemarks on a write-protected tape, and also when no tape is
loaded.
7
Write Zero Filemarks is treated as any other write command with respect to
write-protected tapes, and when there is no tape present.
Switches
Auto-Stack Auto-Eject LUN 1 Tape
Allow
Resequencing
LUN 1 Maga-
zine Ready
LUN 0 Drive
Inquiry
1 2 3 4
Value
On Off Off Off
1h
Enabled Enabled
On Off On Off 5h Enabled Enabled Enabled
Off On On Off 6h Enabled Enabled Enabled
On On On Off
7h
Enabled Enabled
Auto-Stack
Enabled: When a magazine is inserted, the autoloader will enter Stacker mode and
automatically load the first cartridge.
Auto-Eject
Enabled: When the autoloader is in Stacker mode, it will eject the magazine when
the last cartridge in the magazine is unloaded.
Allow
Resequencing
Enabled: While the drive is in Stacker mode, the Load and Select buttons are
available to select a different cartridge.
Not Enabled: The Load and Select buttons are ignored in Stacker mode.
LUN 1 Magazine
Ready
Enabled: A SCSI
TEST UNIT READY
command to LUN 1 will report
GOOD
status
whenever a magazine is present in the autoloader and magazine census
data is available. This provides a way of detecting the presence of a
magazine.
Not Enabled: A
TEST UNIT READY
command will receive a
GOOD
status report whenever
the unit has completed the power-on self-tests.