HP 3PAR StoreServ 7000 Storage Service Guide

2 Understanding LED Indicator Status
Storage system components have LEDs to indicate status of the hardware and whether it is
functioning properly. These indicators help diagnose basic hardware problems. You can quickly
identify hardware problems by examining the LEDs on all components using the tables and
illustrations in this chapter.
Enclosure LEDs
Bezels LEDs
The bezels are located at the front of the system on each side of the drive enclosure and include
three LEDs.
Figure 28 Bezel LEDs
Table 1 Bezel LEDs
IndicatesAppearanceLEDCallout
On – System power is available.GreenSystem Power1
On – System is running on battery power.Amber
On – System hardware fault to I/O modules or PCMs within the enclosure.
At the rear of the enclosure, identify if the PCM or I/O module LED is also
Amber.
AmberModule Fault2
On – Specific disk drive LED identifies the affected disk. This LED applies to
disk drives only.
AmberDisk Drive
Status
3
NOTE: Prior to running the installation scripts, the numeric display located under the Disk Drive
Status LED on the bezels may not display the proper numeric order in relation to their physical
locations. The correct sequence will be displayed after the installation script completes.
Disk Drive LEDs
The LEDs are located on the front of the disk drives:
Enclosure LEDs 31