Specifying the Unit Configuration

To select the desired RAID configuration

1Press Enter in the RAID Configuration field to display the available RAID levels for the number of drives you selected.

Figure 13. List of Configuration Choices for Four Drives

2Use the arrow keys to highlight the desired RAID configuration and press Enter.

For information about the different RAID levels and when to use each, see “Understanding RAID Concepts and Levels” on page 28.

To enable or disable write cache and set striping size

The write cache and striping size parameters depend on the type of RAID level you selected.

Note: You can enable or disable the write cache again later without affecting the configuration. However, you cannot change the stripe size later without reconfiguring the unit.

1Use the arrow keys or press Tab to move to the field Array’s Write Cache State.

2Select whether you want the write cache to be enabled or disabled for this unit.

The default is for write cache to be enabled. For more information about write cache, see page 31.

3Press Tab to move to the field Stripe Size and select the desired stripe size (16KB, 64KB, or 256KB).

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AMCC 9000 manual To select the desired RAID configuration