Scsi Id Settings; Parity Checking; Terminating Power - IBM DDS Gen 5 User Manual

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SCSI ID settings

Jumper Pins:
Default Settings:
Each SCSI device on the bus must have its own unique ID. Your internal tape
drive is shipped with a default SCSI ID of 6. If another SCSI device in the SCSI
chain is already using this ID, use jumper pins 1–2, 3–4, 5–6, and 7–8 to change the
drive's SCSI ID.
Note: 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).

Parity checking

Jumper Pins 9-10:
By default, parity checking is enabled on the internal tape drive. To disable parity
checking, remove the jumper from pins 9 and 10.
Note: If you disable parity checking, the drive still generates a parity bit.

Terminating power

Jumper Pins 11-12:
By default, terminator power is disabled on the internal tape drive. To enable
terminator power, place a jumper across pins 11 and 12.
Note: If you enable terminator power, be careful not to short the TERMPWR signal
to ground (for example, by attaching the SCSI cable upside down). If a short
Default setting
Media recognition
Self test
Operating-system configuration switches
Wide/narrow SCSI
Inquiry string support
1-2, 3-4, 5-6, 7-8
SCSI ID 6
Pins 9-10 shunted: Enable parity checking
(default)
Pins 9-10 open: Disable parity checking
Pins 11-12 shunted: Enable terminator
power
Pins 11-12 open: Disable terminator power
(default)
Chapter 2. Installation
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