Managing Power-Save Settings

Dimmer Switch Technology

Powering drives and cooling drives represent a major cost for data centers. The MegaRAID Dimmer Switch (power save) feature set reduces the power consumption of the devices that are connected to a MegaRAID controller. Reducing the power consumption helps to share resources more efficiently and lowers the cost.

  • Dimmer Switch 1 – Spin down unconfigured disks. This feature is configurable and can be disabled.
  • Dimmer Switch 2 – Spin down hot spares. This feature is configurable and can be disabled.

Perform the following steps to manage the power-save settings.

  1. In the Controller dashboard, select More Actions > Manage Power Save Settings.
    The Manage Power Save Settings dialog appears.
  2. Select the Unconfigured Drives check box to let the controller enable the unconfigured drives to enter the Power Save mode.
  3. Select the Hot Spare Drives check box to let the controller enable the hot spare drives to enter the Power Save mode.
  4. Select the spin down time using the drop-down list from the Spin Down Time: field.

    The drive standby time can be 30 minutes, 1 hour, and 2 hours through 24 hours.

  5. Click Finish to save the settings.

    A confirmation message appears.