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Modifying Power Management Settings

Power management settings switch the array to low power state when it is inactive for a specic time.

To modify power management settings:

1. Select Manage Arrays from the Logical Device Conguration menu.

2. Select the array, then press Ctrl+W.

In the power management console, enter these details:

DescriptionOption

When enabled, switches the array to low power state, when the array/

drive is inactive.

Power Management

The duration of inactive state of the array/drive after which it is slowed

down to low power mode. This is an optional setting.

Slow Down Drive After

Note: The disk drive should support low power mode.

The duration of inactive state of the array/drive after which it is powered

off. This is an optional setting.

Power Off Drive After

Note: Power Off Drive After duration should be greater

than Slow Down Drive After Duration.

The regular time interval at which the system performs a health check

of the array/drive.

Verify Drive After

Modifying Cache Settings

You can modify the read and write cache settings for an array. You can also modify the maxCache

settings. Adaptec maxCache uses the compatible Solid State Drives (SSDs) in your system as fast cache

memory to improve performance for both read and write operations in I/O-intensive applications with

mixed workloads.

Note: maxCache SSD Caching is supported on Adaptec Series Q controllers only.

To modify the cache settings for an array:

1. Select Manage Arrays from the Logical Device Conguration menu.

2. Select the array, then press Ctrl+C.

The Modify Cache Settings window opens.

3. Enable or disable read caching.

4. Press Tab.

5. Enable or disable write caching:

• Select Enable always for “write-back” caching

• Select Enable with ZMM if your controller has battery backup or a zero-maintenance cache

protection module

• Select Disable for “write-through” caching

6. Press Tab.

7. Select the maxCache Read Cache setting (Enable/Disable).

8. Select the maxCache Write Cache setting (Enable/Disable).

9. Press Enter to accept the values.

84Proprietary and Condential to PMC-Sierra, Inc.

Document No.: CDP-00277-02-A Rev. A, Issue:

Serial Attached SCSI RAID Controllers Installation and User's Guide

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