Initializing Disk Drives; Rescanning Disk Drives - Adaptec 5805 Installation And User Manual

Option Description
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:
Down Drive After Duration.
Verify Drive After 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 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
88.
To modify cache settings:
Select Manage Arrays from the main ACU menu.
1
Select the array, then press Ctrl+C.
2
The Modify Cache Settings window opens.
Enable or disable read caching.
3
Press Tab.
4
Select the preferred MaxIQ setting (Enable/Disable), press Tab, then enable or disable
5
MaxIQ.
Note:
To enable MaxIQ caching, read caching must also be enabled.
Press Tab.
6
Enable or disable write caching: select Enable always for "write-back" caching; select
7
Disable for "write-through" caching.
Press Enter to accept the values.
8

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.
Appendix C: Using the Adaptec RAID Configuration Utility
Power Off Drive After duration should be greater than Slow
Using the ACU to Manage the MaxIQ Pool on page
86
●