Dual-Port I/O Module Status Displays - Compaq TA1000 Reference Manual

3-4 Compaq TA1000 Tape Drive Array Reference Guide

Dual-Port I/O Module Status Displays

Table 3-1 describes the dual-port I/O module status displays.
Dual-Port I/O Module Status Displays
LED is On
When the I/O module is operational and the external SCSI bus is functional:
SCSI bus A is functional (LED On)
SCSI bus B is functional (LED On)
I/O module power present and I/O module locate function is active (LED
Flashing)
I/O module power present (LED On)
SCSI bus A functional (LED On)
SCSI bus B functional (LED On)
When the I/O module is operational and the external SCSI bus is nonfunctional:
I/O module power present (LED On)
SCSI bus A nonfunctional (LED Off)
SCSI bus B functional (LED On)
I/O module power present (LED On)
SCSI bus A nonfunctional (LED On)
SCSI bus B functional (LED Off)
I/O module power present (LED On)
Backplane terminator A nonfunctional (LED Off)
Backplane terminator B nonfunctional (LED Off)
When the I/O module is nonoperational:
No I/O module power (All LEDs Off)
I/O module nonoperational
Recommended Corrective Action:
1. Check power supplies for proper operation. Replace if defective.
2. Replace I/O module.
Table 3-2
LED is Off LED is Flashing