Seagate STD224000N - DAT Scorpion 24 Tape Drive Installation Manual page 10

Seagate DAT Drive Installation Manual
SCSI ID switches (switches S1 through S3)
The three switches S1 through S3 correspond to the SCSI
device address identification bits 0 (LSB) through 2
(MSB), respectively.
Note. Each SCSI device on a bus must have a unique
SCSI ID. The SCSI host controller generally uses
ID 7. In some systems, the boot drive uses ID 0.
Media-recognition system (switch S4)
The media-recognition system allows the drive to detect
DDS cartridges that support this feature. Use of non-DDS
media may appear to give satisfactory results, but the
inferior specifications of such media can cause data-
integrity problems.
The S4 switch enables or disables media-recognition
system (MRS) mode. If S4 is ON, the drive reads or writes
both MRS and non-MRS 4-mm media. If S4 is OFF, the
drive reads and writes to MRS media and reads from but
does not write to 4-mm media.
Parity check enable/disable (switch S5)
The S5 switch enables or disables parity checking for the
SCSI bus. When parity checking is disabled, parity is still
generated by the drive.
If switch S5 is on, parity checking is enabled. The default
setting is parity checking disabled (S5 set to off).
DDS pass-through mode enable/disable (switch S6)
If switch S6 is on, DDS pass-through is enabled (data
compression is disabled).
Note. The function of the S6 switch can be overridden
by the proper SCSI MODE SELECT command issued
from the host computer.
Inquiry string (switch S7)
The S7 switch is used to set the inquiry string used by the
drive. It should be left in its factory-default setting (ON).
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