VTrak E-Class Product Manual - Promise Technology, Inc.

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Chapter 5: Management with the CLU
2. Highlight the logical drive you want and press Enter.
3. To set write cache policy for this logical drive, highlight WritePolicy and press
the spacebar to toggle between WriteBack and WriteThru (write though).
4. Press Ctrl-A to save your settings.
Setting Read Cache Policy
To set read cache policy on a logical drive:
1. From the Main Menu, highlight Logical Drive Management and press Enter.
2. Highlight the logical drive you want and press Enter.
3. To set read cache policy for this logical drive, highlight ReadPolicy and press
the spacebar to toggle though ReadCache, ReadAhead and None.
4. Press Ctrl-A to save your settings.
Setting Preferred Controller ID
This feature applies to dual-controller capable Fibre Channel models only.
To set the preferred controller for this logical drive:
1. From the Main Menu, highlight Logical Drive Management and press Enter.
2. Highlight the logical drive you want and press Enter.
3. To set the preferred controller ID for this logical drive, highlight Preferred
Controller ID and press the spacebar to toggle between 1 and 2.
4. Press Ctrl-A to save your settings.
Initializing a Logical Drive
This function sets all data bits in the logical drive to zero.
Caution
When you initialize a logical drive, you delete all the data it
contains. Back up all important data before initializing a logical
drive.
To initialize a logical drive:
1. From the Main Menu, highlight Logical Drive Management and press Enter.
2. Highlight the logical drive you want and press Enter.
3. Highlight Background Activity and press Enter.
4. Highlight Start Initialization and press Enter.
The initialization parameters appear.
• Initialization pattern. The default 00000000 is best for most applications