6-1
CH A P T E R
6
Checking LEDs
This chapter describes the front and back-panel LEDs, which display the operating
status of all drives and modules. Topics covered in this chapter are:
■
“LEDs When The Array Is First Powered On” on page 6-1
■
“Front-Panel LEDs” on page 6-2
■
“Drive LED Status” on page 6-4
■
“Correcting SES or PLD Firmware Version Conflicts” on page 6-4
■
“Back-Panel LEDs” on page 6-5
■
“I/O Controller Module LEDs” on page 6-5
■
“I/O Expansion Module LEDs” on page 6-8
■
“Power Supply and Fan Module LEDs” on page 6-9
For troubleshooting flowcharts related to LEDs, see “Troubleshooting Flowcharts” on
page 8-11.
6.1
LEDs When The Array Is First Powered On
With the array powered up but not connected to a server, you should see the LED
conditions described in Table 6-1.
Note –
Whenever media scan is running on a drive, its front-panel LED flashes green.
It is normal for almost all front-panel drive LEDs to flash green unless media scanning
is terminated. For more information, refer to the
SANnet II Family RAID Firmware
User’s Guide
.
Table 6-1
Front-Panel LED Status When Array Is First Powered On
Drive LEDs
Blinking green
Chassis ear LEDs
Solid green
