HP ProLiant DL580 Gen9, Maintenance And Service Manual

Page: 95 / 108

Component identification 95
FBWC module LEDs
The FBWC module has three single-color LEDs (one amber and two green). The LEDs are duplicated on
the reverse side of the cache module to facilitate status viewing.
1 - Amber 2 - Green 3 - Green Interpretation
Off
Off Off The cache module is not powered.
Off
Flashing once
every 2 seconds
Flashing once
every 2 seconds
The cache microcontroller is executing from within its
boot loader and receiving new flash code from the host
controller.
Off
Flashing once
per second
Flashing once
per second
The cache module is powering up, and the capacitor
pack is charging.
Off
Off Flashing once
per second
The cache module is idle, and the capacitor pack is
charging.
Off
Off On The cache module is idle, and the capacitor pack is
charged.
Off
On On The cache module is idle, the capacitor pack is
charged, and the cache contains data that has not yet
been written to the drives.
Off
Flashing once
per second
Off A backup of the DDR content on the cache module is
in progress.
Off
On Off The current backup is complete with no errors.
Flashing once
per second
Flashing once
per second
Off The current backup failed, and data has been lost.
Flashing once
per second
Flashing once
per second
On A power error occurred during the previous or current
boot. Data may be corrupt.
Flashing once
per second
On Off An overtemperature condition exists.
Flashing twice
per second
Flashing twice
per second
Off The capacitor pack is not attached.
Flashing twice
per second
Flashing twice
per second
On The capacitor has been charging for 10 minutes, but
has not reached sufficient charge to perform a full
backup.
On
On Off The current backup is complete, but power
fluctuations occurred during the backup.
On
On On The cache module microcontroller has failed.