Adaptec ASR-6405E User's Guide download pdf (Page 99)

Appendix C: Using the Adaptec RAID Configuration Utility ● 99

Modifying Cache Settings

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

cache settings. The MaxIQ cache uses the MaxIQ-compatible Solid State Drives in your system

as a read cache pool to improve performance in read-intensive applications.

Note:

For more information about MaxIQ, see Using the ACU to Manage the MaxIQ Pool on page

101.

To modify cache settings:

1 Select Manage Arrays from the main ACU menu.

2 Select the array, then press Ctrl+C.

The Modify Cache Settings window opens.

3 Enable or disable read caching.

4 Press Ta b.

5 Select the preferred MaxIQ setting (Enable/Disable), press Ta b, then enable or disable

MaxIQ.

Note:

To enable MaxIQ caching, read caching must also be enabled.

Press Ta b.

7 Enable or disable write caching: select Enable always for “write-back” caching; select

Disable for “write-through” caching.

8 Press Enter to accept the values.

Initializing Disk Drives

If a disk drive appears grayed-out (unavailable for use in a new array), it may need to be

initialized.

To begin initializing a disk drive, select Initialize Drives from the main ACU menu. You can

initialize one drive or multiple drives. If an error occurs during initialization, the message

“Initializing drives...FAILED x of n” is displayed. Press Enter to see a list of drives that failed to

initialize. Press Esc to continue.

Caution:

Do not initialize a disk drive that is part of an array. Initializing a disk drive that’s

part of an array may make the array unusable.

Back up all data from your disk drive before you initialize it.

Rescanning Disk Drives

To begin rescanning a disk drive, select Rescan Drives from the main ACU menu.

Power Off Drive After The duration of inactive state of the array/drive after which it is powered

off. This is an optional setting.

Note: Power Off Drive After duration should be greater than Slow

Down Drive After Duration.

Verify Drive After The regular time interval at which the system performs a health check of

the array/drive.

Option Description

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Adaptec ASR-6405E User's Guide Page 99