Channel Module; Saf-Te Card; Jumper Settings - Intergraph InterServe 8000 System Reference Manual

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Channel Module

The disk section uses the dual-channel module (MSMT456) to enable two channels for the disk section.
This module is used in all systems, RAID and non-RAID.

SAF-TE Card

The SAF-TE card (MSMT460) is the primary component that makes the disk section a RAID-capable
subsystem. This card is only installed in systems that include the AMI RAID controller (MSMT489).
If the UW SCSI controller (CINFD80) is used, then the card is not present. Non-RAID system can be
upgraded to RAID by swapping the UW SCSI controller and adding the SAF-TE card. Refer to
Chapter 3, "Upgrading the System" for details.

Jumper Settings

The disk section backplane has two jumper headers, spin-up delay (JP2) and SCSI ID (JP3), that are
used with the Ultra Wide SCSI controller in non-RAID systems. Non-RAID systems must have the
delay and SCSI ID jumpers installed.
NOTE RAID systems, which use the AMI RAID controller, do not use any jumpers on these headers. The
delay and SCSI ID setttings are controlled by the RAID controller.
Spin-up Delay
The jumpers on JP2 (4 position, dual-row header) are used to set the delay time between drive power
on and spin up. This ensures all the drives power on properly. If all the drives power on
simultaneously, failures could occur. The following table shows he jumper settings which define the
spin-up delays.
Jumper on
Pins 1 and 2
On
On
Off
Off
SCSI ID
The jumpers on JP3 (eight-position, dual-row header) are used to set the SCSI IDs for all of the disk
drive slots in a non-RAID system. The following table shows the correlation between the JP3 pins and
the disk drive slots.
Pins on JP3
1 and 2
3 and 4
5 and 6
7 and 8
Jumper on Spinup
Pins 3 and 4 Mode
On Drive motor spins up only on SCSI "start" commands.
Off DEFAULT SETTING: Motor spins up after delay of 12
seconds times the numeric SCSI ID of the drive.
On Drive motor spins up only on SCSI "start" commands.
Off Motor of all drives spin up at DC power on.
Disk Drive Slot
Slot 1 (lowest)
Slot 2
Slot 3
Slot 4
Pins on JP3 Disk Drive Slot
8 and 10 Slot 5
11 and 12 Slot 6
13 and 14 Slot 7
15 and 16 Slot 8 (top)