Compaq 4200 Family - Manual (Page 16)

1–4 Enclosure 4200 Family LVD Disk Enclosures User Guide
Status Monitoring and Display
The major status monitoring capabilities of these enclosures include:
■ Displaying the enclosure status on the enclosure LEDs
■ Displaying the element status on the power supply, EMU, drive, and I/O module LEDs
■ Detecting the installation of a fan, power supply, drive, or I/O module
■ Detecting the removal of a fan, power supply, drive, or I/O module
■ Sensing enclosure temperatures
■ Sensing power supply voltage, current, and total power
The EMU user guide describes the functions and features of the EMU.
Enclosure Layout
The physical layout of the enclosure is the same whether in a rack or a tower. The drives
mount in the bays in the front of the enclosure. These bays are numbered from the left
(bay
1
) to the right (bay
r
, see Figure 1–3). The common method of referring to a drive
is by the bay number. The drive in bay
1
is drive 1, the drive in bay
8
is drive 8, and so
forth.
At location
t
are the three enclosure status LEDs.