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Verifying the operating status of the disk enclosures
To verify that the disk enclosures and disk drives are operating properly, view the enclosure and disk
drive LEDs and compare them with the patterns described in the following table. If LED patterns are
not as expected, check cable connections between the devices, check the availability of your power
source, review the installation procedures, and remove and reinsert the module. For more information
about disk enclosure LEDs, see Chapter 1 on page 7.
Fault conditionOperating
condition
Startup condi-
tion
LEDDisk enclosure component
OffSolid greenBlinking green1. Health
Front UID module
LEDs
Blinking or Solid
Amber
OffBlinking amber2. Fault
OffOffBlinking blue3. UID
OffSolid greenGreenStatus
Power supply module
Blinking or solid
amber
Solid greenSolid greenStatus
Fan module
nl
Off
Blinking or solid
green
1. Port Link
I/O module
Solid amberOff2. Port Error
Off
A number, rep-
resenting the
box number
3. 7–segment
display
Blinking or solid
amber
Off4. Fault
OffSolid greenBlinking green5. Health
OffOff6. UID
Installation40