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Changing An Existing Configuration by Migrating

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5 Press Enter to display the choices, use the arrow keys to select the

setting you want, and press

Enter again to choose it.

Tab to the OK button and press Enter to select it.

You return to the main 3BM screen.

7 When you are finished making changes, press

F8 to save them and exit

3BM.

Changing An Existing Configuration by

Migrating

You can convert one RAID configuration into another while the unit is online.

This process is known as RAID Level Migration (RLM).

You can use RAID Level Migration to make two main types of configuration

changes:

• RAID Level (for example, a RAID 1 to a RAID 5)

• Unit Capacity Expansion (for example, adding a 4th drive to a 3-drive

RAID 5)

You can also use RLM to change the stripe size of a unit.

This section includes the following topics about changing existing

configurations:

• RAID Level Migration (RLM) Overview

• Changing RAID Level

• Expanding Unit Capacity

• Informing the Operating System of Changed Configuration

If you want to change the policy settings for an existing unit, there is no need

to change the configuration. See “Setting Unit Policies” on page 106.

Note: A unit being migrated can still be used (I/O still continues), however the

performance will be affected while the migrating task is active. You can control how

much effect this has on performance by setting the background task rate. For more

information, see “Setting Background Task Rate” on page 112.

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AMCC 3WARE 9500S Guía de usuario Pagina 125