You can use power management in Adaptec Storage Manager to maintain an energy-efficient storage space. Power management of your storage space reduces cooling and electricity costs. It increases system stability due to lower heat dissipation. And it improves the quality of your work environment by reducing noise levels in your computer rooms and data centers.
This section describes how to configure power management for the logical devices and RAID controllers in your storage space. You can set power management options for individual logical devices and for all logical devices on a controller.
Note! Power management is not available on all controllers. To see if your controller supports power management, right-click the controller in the Enterprise View, then click Properties. The Power tab shows the power status of the device. (If the tab is not present, the device does not support power management.) You can check the power status in the Properties panel for controllers, logical devices, and physical drives.
To Configure Power Management for a Logical Device:
For each logical device in your storage space, you can a set a timer to lower disk drive spin rate (RPM), turn disk drives off, and check an inactive drive to verify its health.
Caution! Adaptec does not recommend configuring power-management for logical devices with physical drives in common (although it is supported). Configuring power-managed logical devices with common physical drives may limit power savings in your storage space.
In the Logical Devices View, select a logical device.
In the menu bar, select Actions, click Power settings, then click Set timers.
The logical device power management timers window opens.
Select a value for each timer from the drop-down lists.
Slow down drives after—Period of inactivity, from 3 minutes to 3 hours, after which the drives’ spin rate is lowered. The default is Never.
Note! For disk drives that do not support slow operation, set this timer to Never.
Power off drives after—Period of inactivity, from 3 minutes to 3 hours, after which the disk drives are turned off. The default is Never.
Verify drives after—Period of inactivity, from 1 hour to 24 hours. after which an inactive drive (a drive that’s already powered down) is restarted and checked to verify its health. Once the check is completed, the drive is powered down and returns to its inactive state. The default is Never.
Click OK.
To Configure Power Management for a Controller:
The power management options for a controller affect all logical devices on that controller. You can choose a “stay awake” period during which the disk drives on the controller always operate at their peak spin rate. You can also set the spin-up limits for the controller: the maximum number of drives the controller will spin up at the same time.
Note! The time setting for the stay awake period is relative to your local system time. To set the time zone for power management, you must use the controller BIOS utility. The time zone does not adjust automatically for daylight savings time. To compensate, you must adjust the stay awake period manually. For more information, see the RAID Controller Installation and User’s Guide.
To Set the Stay Awake Period for Disk Drives:
In the Enterprise View, select a controller.
In the menu bar, select Actions, click Power settings, then click Set stay awake settings.
The Stay awake settings window opens.
Select Enable stay awake period.
Enter the stay awake period start time and end time in 24-hour format; for example, 09:00 for 9AM, 14:00 for 2PM, and so on.
Select the days of the week to enforce the stay awake period. On days you do not select, the stay awake period is disabled and spin rate is controlled by your power management timer settings.
Click OK.
To Set the Spin-Up Limits for Disk Drives:
In the Enterprise View, select a controller.
In the menu bar, select Actions, click Power settings, then click Set spinup limits.
The Adapter drive spinup limits window opens.
Enter the maximum number of internal disk drives that the controller may spin-up at the same time.
Enter the maximum number of external disk drives (drives in an enclosure, such as a JBOD) that the controller may spin-up at the same time.
Click OK.
To Disable Power Management on a Logical Device:
You can disable power management for a logical device. For example, you may choose to disable power management for the drives on a high-volume server, or a logical drive that needs to be highly available.
In the Logical Devices View, click the logical device.
In the menu bar, select Actions, click Power settings, then click Disable.
The logical device is updated with the new setting.
Note! To re-enable the power management for a logical device, repeat the steps above, selecting Enable during Step 2.
To Show Devices Under Power Management:
You can highlight the physical and logical devices under power management in the Adaptec Storage Manager GUI. Logical devices are shown in green if power management is enabled. Physical devices are shown in green if they are powered down (off).
In the menu bar, select View, then click Show Power Management. Adaptec Storage Manager highlights the devices under power management in the Physical Devices View and Logical Devices View. (Show Me!)
To stop showing devices under power management, select View on the menu bar, then click Show Power Management again.