Instruction manual
Each disk drive module has two lights:
1Activity light
The Activity light, which is green, shows the following conditions:
Off The SCSI link to the disk drive is not active.
Flashing
This disk drive module is active and a command is in progress.
2Check light
The Check light, which is amber, shows the following conditions:
Off Normal operating condition
Permanently On
One of the following conditions:
v The service aid has set Remove for this disk drive module (See
“Appendix A. Operating with RISC Systems” on page 81).
v The disk drive has reported a Predictive Failure Analysis (PFA)
error; this error indicates that the disk drive has had an excessive
number of internally recovered errors.
v The disk drive is faulty; this is a Conner/Intel SCSI-Accessed
Fault-Tolerant Enclosures (SAF-TE) function.
Flashing (2 seconds on, 2 seconds off)
The Check light has been set by a SCSI service aid to identify the
position of this disk drive module.
Figure 6. Disk Drive Module Lights
Chapter 1. Using the 2104 Model DU3 or TU3 9