Sun Microsystems Fire X4540, Руководство администратора

Страница: 109 / 154

Chapter 11 Managing Hard Disk Drives 95
Disk Drive Status and LEDs
Each hard disk drive has a sensor that is used to communicate the state of the slot.
The hard disk drives use IPMI (Intelligent Platform Management Interface) sensors
to convey a slot state, as shown in
TABLE 11-1
:
Inside the Sun Fire X4540 server chassis, each of the 48 hard disk drives has three
LEDs, as shown in
TABLE 11-2
.
The individual LED locator can be used to control both the fault and removal LEDs
through an IPMI OEM command. The service processor controls the fault and
removal LEDs automatically, based on events in the disk drive sensors.
TABLE 11-1
Disk Drive Status Sensors
State Event Description
0 Device Not Present The drive bay is empty.
1 Device Installed The drive is detected. Used by remote management
applications.
2 Ready for Device Removal A drive is unmounted and ready to be physically
removed. Controls the OK to Remove LED.
3 Device Faulted Causes the service processor to illuminate the individual
disk drive fault LED.
TABLE 11-2
Disk Drive LED Indicators
LED Event Description
Green Disk drive activity Controlled by hardware. Does not require SP interaction.
Amber Hard disk drive failure Controlled by the SP over the SP-12C bus. Relies on the
operating system driver to set appropriately.
Blue Hard disk drive ready for
removal Controlled by the SP over the SP-12C bus. The operating
system determines that the drive has been halted and is
ready to be removed.