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MegaRAID SAS Software User GuideChapter 8: Configuration
| Changing Power Settings
When they are in the Power-Save mode, unconfigured drives and drives configured as
hot spares (dedicated or global) can be spun down. When spun down, the drives stay in
Power-Save mode except for periodic maintenance, including:
Periodic background media scans (Patrol Read) to find and correct media defects to
avoid losing data redundancy (hot spare drives only)
Use of a hot spare to rebuild a degraded drive group (hot spare drives only)
Update of Disk Data Format (DDF) and other metadata when you make changes to
RAID configurations (hot spare drives and unconfigured drives)
NOTE: If your controller does not support this option, the Power Settings field does
not display.
Follow these steps to change the power-save setting.
1. Select a controller icon in the Physical tab or the Logical tab in the left panel of the
MegaRAID Storage Manager window.
2. Select Go To>Controller>Power Settings from the menu bar.
The Power Settings dialog box displays, as shown in the following figure.
Figure 157: Power-Save Mode Check box
3. Click the check box Allow unconfigured drives to enter Power-Save mode and then
click OK.
The second Power Settings screen appears, as shown in the following figure.
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