Battery Operation; Battery Status - Sun Microsystems StorEdge 3000 Series Installation, Operation And Service Manual

5.3

Battery Operation

The battery LED (on far right side of the controller module) is an amber LED if the
battery is bad or missing. The LED is blinking green if the battery is charging and is
solid green when the battery is fully charged.
5.3.1

Battery Status

The initial firmware screen displays the battery status at the top of the initial screen
where BAT: status displays somewhere in the range from BAD to ----- (charging), or
+++++ (fully charged).
For maximum life, lithium ion batteries are not recharged until the charge level is
very low, indicated by a status of -----. Automatic recharging at this point takes very
little time.
A battery module whose status shows one or more + signs can support cache
memory for 72 hours. As long as one or more + signs are displayed, your battery is
performing correctly.
TABLE 5-1
Battery Display
-----
+----
++---
+++--
++++-
+++++
Your lithium ion battery should be changed every two years if the unit is
continuously operated at 25 degrees C. If the unit is continuously operated at 35
degrees C or higher, it should be changed every year. The shelf life of your battery is
three years.
5-4 Sun StorEdge 3000 Family Installation, Operation, and Service Manual • March 2004
Battery Status Indicators
Description
Discharged; the battery is automatically recharged when it reaches this
state.
Adequately charged to maintain cache memory for 72 hours or more in case
of power loss. Automatic recharging occurs when the battery status drops
below this level.
Over 90% charged; adequate to maintain cache memory for 72 hours or
more in case of power loss.
Over 90% charged; adequate to maintain cache memory for 72 hours or
more in case of power loss.
Over 90% charged; adequate to maintain cache memory for 72 hours or
more in case of power loss.
Fully charged; adequate to maintain cache memory for 72 hours or more in
case of power loss.