Table 10. Ops panel functions – 5U enclosure front panel
No.
Indicator
Status
1
Unit Identification Display (UID)
Green (seven-segment display: enclosure sequence)
2
System Power On/Standby
Constant green: positive indication
Constant amber: system in standby (not operational)
3
Module Fault
Constant or blinking amber: fault present
4
Logical Status
Constant or blinking amber: fault present
5
Top Drawer Fault
Constant or blinking amber: fault present in drive, cable, or sideplane
6
Bottom Drawer Fault
Constant or blinking amber: fault present in drive, cable, or sideplane
Unit identification display
The UID is a dual seven-segment display that shows the numerical position of the enclosure in the cabling sequence. The UID is also called
the enclosure ID.
NOTE:
The controller enclosure ID is 0.
System Power On/Standby LED (green/amber)
LED is amber when only the standby power is available (non-operational). LED is green when system power is available (operational).
Module Fault LED (amber)
LED turns amber when experiencing a system hardware fault. The module fault LED helps you identify the component causing the fault.
The module fault LED may be associated with a Fault LED on a controller module, IOM, PSU, FCM, DDIC, or drawer.
Logical Status LED (amber)
This LED indicates a change of status or fault from something other than the enclosure management system. The logical status LED may
be initiated from the controller module or an external HBA. The indication is typically associated with a DDIC and LEDs at each disk
position within the drawer, which help to identify the DDIC affected.
Drawer Fault LEDs (amber)
This LED indicates a disk, cable, or sideplane fault in the drawer indicate: Top (Drawer 0) or Bottom (Drawer 1).
Initial start-up problems
The following sections describe how to troubleshoot initial start-up problems:
LEDs
LED colors are used consistently throughout the enclosure and its components for indicating status:
•
Green: good or positive indication
•
Blinking green/amber: non-critical condition
•
Amber: critical fault
Host-side connection troubleshooting featuring 10Gbase-T
and SAS host ports
The following procedure applies to ME4 Series controller enclosures employing external connectors in the host interface ports:
1. Stop all I/O to the storage system. See “Stopping I/O” in the
Dell EMC PowerVault ME4 Series Storage System Owner’s Manual
.
Troubleshooting and problem solving
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