Flash-Backed Write Cache (Fbwc) Leds; Fault Management Features - HP Smart Array -UX 11i v2 Support Manual

Table 12 Interpreting battery pack LEDs (continued)
LED 3 State
One flash per
second
Steady glow
One flash per
second

Flash-Backed Write Cache (FBWC) LEDs

The FBWC module has two single-color LEDs (green and amber). The LEDs are duplicated on the
reverse side of the cache module to facilitate status viewing.
Table 13 Flash-Backed Write Cache LEDs
Green LED
Off
Flashing (1 Hz)
Flashing (1 Hz)
On
Flashing (2 Hz)
Alternating with
amber LED
On
Off

Fault management features

The Smart Array Controllers and the HP-UX operating system support the following fault management
and data reliability features that minimize the impact of disk drive defects on your systems:
Auto-Reliability Monitoring (ARM)
Dynamic sector repair
S.M.A.R.T.
LED 4 State Interpretation
One flash per An alternating green and amber flash pattern indicates that the cache
second microcontroller is executing from within its boot loader and receiving new flash
code from the host controller.
-- There is a short circuit across the battery terminals or in the battery pack. BBWC
features are disabled until the battery pack is replaced. The life expectancy of a
battery pack is typically more than three years.
-- There is an open circuit across the battery terminals or in the battery pack. BBWC
features are disabled until the battery pack is replaced. The life expectancy of a
battery pack is typically more than three years.
Amber LED Interpretation
On A backup is in progress.
On A restore is in progress.
Off The capacitor pack is charging.
Off The capacitor pack has completed charging.
Flashing (2 Hz) One of the following conditions exists:
Alternating with
The charging process has timed out.
green LED
The capacitor pack is not connected.
On The flash code image failed to load.
Off The flash code is corrupt.
A firmware process that operates in the background,
scanning physical disks for bad sectors in fault-tolerant
logical drives. ARM also verifies the consistency of parity
data in logical drives that use RAID 5 or RAID ADG. This
process assures that you can recover data successfully if a
disk fails. ARM operates when you select a fault-tolerant
configuration.
Automatically remaps any sectors that have media faults
detected during normal operation or by Auto-Reliability
Monitoring.
An industry-standard diagnostic and failure prediction
feature of physical disks, developed by HP in collaboration
with the disk drive industry. S.M.A.R.T. monitors factors that
predict imminent physical disk failure due to mechanical
causes, including the condition of the read/write head, the
seek error rate, and the spin-up time. When a threshold
value is exceeded for a factor, the disk sends an alert to the
Flash-Backed Write Cache (FBWC) LEDs 19