Figure 18. Enclosure Front Operator’s Panel
System power on/standby LED (green/amber)
Shows amber when only standby power is available. Shows green when system power is available.
Module fault LED (amber)
Comes on when there is a system hardware fault. It may be associated with a fault LED on a PCM, or I/O
module that helps the user to identify which component is at fault.
Logical status LED (amber)
Indicates a change of status or fault from something other than the enclosure management (EM) system.
This may be from an internal or external RAID controller or HBA, communicated to the enclosure
(normally through SES). It is usually associated with a disk drive and LEDs at each disk drive position
helps the user to identify the drive affected.
Thermal sensor
This thermal sensor is on the outside the enclosure and connects to another thermal sensor on the mid
plane of the enclosure. This external thermal sensor sends input to the enclosure about its external
operating ambient temperature. Its other function is to cause a warning signal to be generated by the SES
when there is a break in this sensor's connection to the enclosure mid plane.
Note: Refer to the section on “Ops Panel LEDs” for a description of the LED and switch functions.
Table 8. Ops Panel LEDs Status
LED
Status
System Power
Constant green: good or positive indication
Constant amber: fault present
Module Fault
Constant or flashing amber: fault present
Logical Fault
Constant or flashing amber: fault present
22 IBM Cloud Object Storage System: IBM Small J10 Disk Enclosure Manual
Summary of Contents for Small J10 Series
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