Data Domain DD580, Руководство по аппаратному обеспечению системы

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Disk LEDs
Figure 15: Disk activity LEDs
DD580, DD565, DD530, and DD510 Systems 49
Hardware Overview
Caution
The rack screw keeps the chassis from sliding forward and back when in a rack with
slide rails. Use a 10-32 nut to secure the rack screw to the rack.
The rack screws
cannot support the weight of the chassis in a rack. Use the rack screws only in
combination with the slide rails that are included in the shipping crate with the
system.
Each disk has two LEDs at the bottom of the disk carrier. See Figure 15. The right LED on each
disk flashes (green or blue depending on the Data Domain system model) whenever the system
accesses the disk. The left LED glows red when the disk has failed. Both LEDs are dark on the disk
that is available as a spare.
Alert Status Indicator The LED glows red for fatal errors that shut down the system, such as
temperature or voltage extremes.
The LED blinks on and off for non-fatal errors, such as nearing a critical
voltage threshold, too many fans have failed, or too many memory errors
occurred in a given time.
Table 11: Front panel LEDs
LED State