Motorola CPCI-6115 Service Manual Page 95

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Chapter 8 Drive Removal and Installation
CPX8216 and CPX8216T Installation and Use (6806800A52C)
75
5. For a SCSI carrier frame, set the carrier frames CPU assignment according to the following
information.
When the switch is engaged, the hot swap carrier sends a PRESENT signal to the HSC module.
This setting (A/B) makes the device available to the specific domain’s processor board and
allows the domains host processor and HSC module to control the device’s status indicators
and power.
Drive Type Configuration
SCSI Set CPUs using J1 and J2 on the back of
the carrier frame.
CPU A - J1 pins 1 and 2
CPU B - J2 pins 1 and 2
CPUs A and B (default) - J1 pins 1- 2 and
J2 pins 1 - 2.
Notes
1. The SCSI controller resides on a domain’s host
processor board. Configure only for that domain
(CPU A or CPU B)
2. The device is configured to boot domain A or B
3. Only that domain’s processor can control the SCSI
device even if the host processor for the other
domain acquires control of the domain.
4. The SCSI controller must reside on that domain’s
processor and should be configured to belong to
that domain only.
SCSI The SCSI controller resides in a nonhost
system slot and is not configured to boot
the domain.
Notes
1. Configure so that either processor board can gain
access to that device via the HSC.
2. Example: Domain B’s host processor acquires
control of Domain A and the SCSI controller for
Domain A is in one of the nonhost system slots,
the drives attached to that SCSI controller are
available to Domain B’s host processor.
3. Use the default configuration (both A and B).
Note SCSI peripheral devices may be mapped to both domains by setting the jumpers accordingly. This ensures
the SCSI device remains active when a system processor/bridge pair is removed or powered down. If the SCSI
device is only used by one of the system processors, it should be set like an IDE device.
JP7
Q1 Q2
J1
J2
R4
R3
R2
R6R1
R5
JP11
JP2
JP4
2448 9812
J1
J2
J1
J2
J1
J2
CPUs A and B
(Default)
CPU B
CPU A
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