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Chapter 4 Refresh
This chapter describe about the refresh(Learn Cycle).
1. Refresh
A RAID controller must measure correct capacity of battery. So, it discharges from the
condition of the filling charging and it recharges after that. This processing is called
"Refresh".
There are "initial refresh", "periodic refresh", "manual refresh" in the kind of the refresh.
The initial refresh is the refresh to run operate automatically only once to the unused
battery. At first, the RAID controller charges the battery fully, and then discharges. Finally it
charges the battery again, and refresh completes. For the periodic refresh, refer to "3.
Periodic refresh" in this chapter. For the manual refresh, refer to "4. Manual refresh" in this
chapter.
The refresh runs automatically just one time because the correct capacity is saved to a
BBU.
It is not able to check whether the battery is on the way of refresh or not. You can
understand that the refresh is running until the Cache Mode changes to "Write Back".
Charging
Capacity
Relationships between capacity and time during refresh
Discharging
Charging
Initial refresh
Periodic refresh/Manual refresh
Time
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