Direct I/O specifies that reads are not buffered in cache memory. Direct I/O does not override the cache policy settings. Data is transferred to cache and the host concurrently. If the same data block is read again, it comes from cache memory. This is the default setting.

15Press <Esc> to exit the Advanced Menu.

16After you define the current logical drive, choose Accept and press <Enter>.

The array selection screen appears if any unconfigured disk drives remain.

17Repeat steps 3 through 16 to configure another array and logical drive. PERC 3 supports up to forty logical drives per controller.

18If you are finished configuring logical drives, press <Esc> to exit Easy Configuration.

A list of the currently configured logical drives appears.

19Save the configuration at the prompt.

After you respond to the Save prompt, the Configure menu appears.

20Initialize the logical drives you have just configured.

Using New Configuration

The New Configuration option allows you to associate logical drives with multiple physical arrays (spanning of arrays.)

NOTICE: Choosing the New Configuration option erases the existing

configuration information on the selected controller. To use the spanning feature and keep the existing configuration, use View/Add Configuration.

Perform the following steps to configure the arrays using New Configuration.

1Choose Configure—>New Configuration from the Management Menu.

NOTE: The PERC 3 family supports spanning across RAID 1 and 5 arrays only.

PERC 3 BIOS Configuration Utility

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Dell 3 manual Using New Configuration, Choose Configure-New Configuration from the Management Menu