Specifications

Server Component Identification
Battery-Backed Write Cache Enabler
Figure 4-11: Battery-Backed Write Cache Enabler LEDs
NOTE: The battery will take 24 hours to charge for the first time.
Table 4-12: Battery-Backed Write Cache Enabler LEDs
Server Status LED Color LED Status Battery Module Status
Green (2) On Fast charging Server is on and has normal
run time.
Green (2) Off Trickle charging
Amber (1) On Short in the connection of one or more of the four
button cells within the battery module
Amber (1) Blinking Open in the circuit between the positive and
negative terminals of the battery module
Amber (1) Off Battery module status is normal
Server is on and is in the first
30 seconds after power up.
Amber (1) or
green (2)
On Temporary lock-out state; data is lost due to
cable being detached
Server is off and is in data
retention mode.
Amber (1) Blinking every
15 seconds
User data held in write cache is being backed up
CAUTION: After the server is powered down, wait 15 seconds and then check the LED illumination pattern
before unplugging the cable from the battery module. The LEDs are not visible with the rear access panel on.
• If the amber LED blinks after 15 seconds, do not remove the cable from the battery module. This module
is backing up data, and data is lost if the cable is detached.
• If neither LED blinks after 15 seconds, it is safe to remove the cable from the battery module.
When the server is on, review the POST message before plugging or unplugging the cable from the module.
4-14 HP ProLiant DL585 Server Maintenance and Service Guide