The 5U92 disk enclosure contains two PSUs (
4
in Figure 45 on page 45) that are accessible from the
front of the enclosure. Each PSU has its own a set of LEDs, as shown in Figure 46 on page 46.
Figure 46. LEDs on the front of a power supply unit
1
Input power
2
DC power
3
Fault indicator
Table 7 on page 46 explains the function and status that is indicated by each of the LEDs. The power
cords for each PSU are accessible from the rear of the disk enclosure (
1
), as shown in Figure 50 on page
49.
Table 7. Power supply unit LEDs
Function
Color
Status
Description
1
Input power
Green
On
The input voltage is within specification.
Off
No power input detected.
2
DC power
Green
On
DC power outputs are within specification.
Off
DC power is not available.
3
Fault
Amber
On
A fault is detected in the PSU.
Off
No faults are detected.
LEDs inside of the disk enclosure
Each of the drives and secondary expansion modules within the 5U92 disk enclosure has two LED
indicators. To view the drives and secondary expansion modules, you must remove the cover of the
enclosure, as described in “Removing the top cover” on page 21.To view the drives and secondary
expansion modules, you must remove the cover of the enclosure, as described in “Removing the top
cover” on page 21.
Figure 47 on page 46 shows the components of a drive assembly. Each drive has an online indicator (
2
)
and fault indicator (
3
).
Figure 47. LEDs on a drive assembly
Table 8 on page 47 describes the meaning of the LEDs on each drive.
46 IBM Cloud Object Storage System
™
Version 3.15.6: J15 Appliance Manual
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