Seven-Segment Numeric Display Leds; Drive State Indicated By The Leds - IBM System Storage DCS3700 Installation, User's, And Maintenance Manual

Figure 57. Disk drive LEDs
Table 16. Disk drive LEDs
Number LED
1 Service Action Allowed
2 Service Action Required (Fault)
Table 17. Drive state indicated by the LEDs
Drive State
Power is not applied
Normal operation: The power is
turned on but there is no drive
I/O activity
Normal operation: Drive I/O
activity is occurring
Service Action Required: A fault
condition exists and the drive is
offline
Power is applied but drives are
spun-down because they are
offline, are part of an "Exported -
Ready to import" array, or are
incompatible or not certified.

Seven-segment numeric display LEDs

The seven-segment numeric display LEDs provide information about enclosure identification and
diagnostics. Figure 58 on page 80 shows the numeric display LEDs.
Normal Status
Off
Off
Drive Power LED
(Green)
Off
On
Blinking
On
Off
Chapter 4. Operating the DCS3700 storage system and expansion enclosure
Problem Status
On (Blue): The disk drive can be
removed
On (Amber): A fault exists within
the disk drive
Drive Service Action
Required LED (Amber)
Off
Off
Off
On
Off
Drive Service Action
Allowed LED (Blue)
Off
Off
Off
On
On
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