Adaptec 51645 User Guide - Page 86
Modifying Cache Settings, Initializing Disk Drives, Rescanning Disk Drives, Manage Arrays, Ctrl+C
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Appendix C: Using the Adaptec RAID Configuration Utility ● 86 Option Power Off Drive After Verify Drive After Description 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. The regular time interval at which the system performs a health check of the array/drive. 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 Adaptec MaxIQ 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 88. 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 Tab. 5 Select the preferred MaxIQ setting (Enable/Disable), press Tab, then enable or disable MaxIQ. Note: To enable MaxIQ caching, regular read caching must also be enabled. 6 Press Tab. 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.