Testing battery capacity – Avago Technologies 3ware 9650SE-12ML (Channel) User Manual
Page 215
Testing Battery Capacity
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To view information about a BBU in 3DM 2
•
On the menu bar, choose Monitor > Battery Backup.
The Battery Backup page appears, on which you can see details and status
about the unit. This page is refreshed every 30 seconds.
For details about the fields on this page, see “Battery Backup page” on
page 241.
To view information about a BBU in 3BM
•
At the main 3BM screen, tab to the Information button and press Enter.
On the pop-up menu, select Battery Backup and press Enter.
The Battery Backup Unit screen appears.
The fields on this screen are the same as those available through 3DM.
For details about the fields, see “Battery Backup page” on page 241.
Testing Battery Capacity
Batteries in the BBU need to be replaced periodically. A battery test should be
run every four weeks in order to get a reliable estimate of battery capacity, and
to determine when it needs to be replaced.
The battery test is used to measure the battery’s capacity to back up write data.
In order to make a reliable estimate of battery capacity, the BBU pre-charges
the battery before it proceeds with a full discharge cycle. The battery is
automatically charged again after the test completes. The whole process
usually takes between 8 and 12 hours.
While running the battery test and until charging is completed, write cache is
temporarily disabled.
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For how to replace the battery, see the installation guide that came with
your controller. Documentation is available online at:
Note:
When the BBU status is not “Ready,” write caching is automatically disabled
on all units attached to the controller