NEC BladeServer Express5800 Series User Manual page 134

3.
Next, select the [Logical] tab, and then the desired [Virtual Disk].
4.
Select [Properties] tab at the right frame of window.
If the battery is fully charged, the Current Write Policy shows "Write Back".
Logical
IMPORTANT:
While the battery is being charged or discharged, "Write Through"
is displayed in [Current Write Policy].
At this time, the POST displays the message as follows:
Your battery is bad or missing, and you have VDs configured for
write-back mode. Because the battery is not usable, these VDs will
actually run in write-through mode until the battery is replaced.
The following VDs are affected: XX
Press any key to continue.
To check the charged rate of battery cell, select [Physical] →
[Properties] → [Relative State of Charge] or [Absolute State of
Charge] on MegaRAID Storage Manager.
NOTES:
The Default Write Policy is factory-set to "Write Back".
For more information of Write Policy, refer to the MegaRAID
Storage Manager User's Guide stored in NEC
EXPRESSBUILDER DVD provided with the server.
Properties
Current write policy
Configuring Your Server 4-77
Default write policy