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Figure 6. Disk Drive Module Lights
Each disk drive module has two lights:
Note: SAF-TE services are not used with RS/6000 or IBM Eserver pSeries
computers.
8
2104 Models DU3 and TU3 Operator's Guide
1 Activity 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.
2 Check 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 77).
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.
Flashing (0.25 seconds on, 0.25 seconds off)
The disk drive is part of an array that is being rebuilt (this is a
SAF-TE function).
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