Table 20. DDIC LED states
Fault LED (Amber)
Status/description*
Off
Off (disk module/enclosure)
Off
Not present
Blinking: 1s on/1s off
Identify
Any links down: On
Drive link (PHY lane) down
On
Fault (leftover/failed/locked-out)
Off
Available
Off
Storage system: Initializing
Off
Storage system: Fault-tolerant
Off
Storage system: Degraded (non-critical)
Blinking: 3s on/1s off
Storage system: Degraded (critical)
Off
Storage system: Quarantined
Blinking: 3s on/1s off
Storage system: Offline (dequarantined)
Off
Storage system: Reconstruction
Off
Processing I/O (whether from host or internal activity)
*If multiple conditions occur simultaneously, the LED state will behave as indicated by the condition listed earliest in the table,
as rows are read from top to bottom.
Each DDIC has a single Drive Fault LED. A disk drive fault is indicated if the Drive Fault LED is lit amber. In the event of a disk
failure, replace the DDIC.
5U84 controller module and IOM LEDs
Controller module and IOM CRUs are common to the 2U and 5U84 enclosures.
●
For information about controller module LEDs, see
12 Gb/s controller module LEDs
.
●
For information about IOM LEDs, see
Initial start-up problems
The following sections describe how to troubleshoot initial start-up problems.
Troubleshooting 2U enclosures
Common problems that may occur with your 2U enclosure system.
The Module Fault LED on the Ops panel lights amber to indicate a fault for the problems listed in the following table:
NOTE:
All alarms also report through SES.
Table 21. Troubleshooting 2U alarm conditions
Status
Severity
Alarm
PCM alert – loss of DC power from a single PCM
Fault – loss of redundancy
S1
PCM fan fail
Fault – loss of redundancy
S1
SBB module detected PCM fault
Fault
S1
PCM removed
Configuration error
None
Troubleshooting and problem solving
37