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Chapter 2 Installing Internal Tape Drives
Parity Checking
DDS-4/DAT 72 User’s Guide 17
Parity Checking 2
Jumper Pins 9–10:
Pins 9-10 shunted: Enable parity checking (default)
Pins 9-10 open: Disable parity checking
By default, parity checking is enabled on the internal tape drive. To
disable parity checking, remove the jumper from pins 9 and 10.
13 Shunted Open Shunted Shunted
14 Open Shunted Shunted Shunted
15 Shunted Shunted Shunted Shunted
Note 1 = This ID is assigned to the HBA and should not be selected for the drive ID
Note: You can also change SCSI IDs by connecting a SCSI address-
selection switch to pins 1 through 8.
If you change the drive’s default SCSI ID, avoid using SCSI
IDs 0 and 1 (which typically are assigned to a boot drive) and
SCSI ID 7 (which typically is assigned to SCSI controllers or
host bus adapters).
Note: If you disable parity checking, the drive still generates a parity
bit.
Jumpers
SCSI ID 1-2 3-4 5-6 7-8
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