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Chapter 7. Configuring Your Controller

90 3ware Serial ATA RAID Controller User Guide

Exporting JBOD Disks

By default, JBOD disks (unconfigured disks) connected to the 3ware RAID

controller are not exported to the operating system. This means that any drives

you leave unconfigured are not seen by the operating system, and cannot be

used for storage. When Export JBOD Disks is set to No, you make individual

disks available for use by configuring them as Single Disks.

If you want unconfigured disks to be available on your computer, you can

change this setting in 3BM or using the CLI.

If JBOD disks are not exported to the operating system, they will appear as

available drives in 3DM, and can be configured as single disks or spares, and

included in other RAID configurations. If you change the policy to allow

JBOD disks to be exported to the operating system, they will appear as units

in 3DM if those drives were previously used as JBODs on another controller.

AMCC recommends that new drives be configured as Singles and not JBODs.

To enable or disable the export of unconfigured disks

1 At the main 3BM screen,

Tab to Policy and press Enter.

2On the

Policy Control screen, Tab to Export Unconfigured Disks, press

Enter to display the choices, use the arrow keys to select Yes (to enable),

No (to disable) and press Enter again to choose it.

Tab to the OK button and press Enter.

You will notice a short delay as 3BM makes the policy changes.

Note: It is recommended that JBODs not be made available to the operating

system. The advantages of working with configured Single Disks over JBOD are:

If interrupted, a single disk media scan will continue from where it left off, while a

JBOD media scan must restart from the beginning.

Single disks can take advantage of the controller caching and configuration is

persistent.

Single disks will be able to be migrated to redundant units in the future (e.g. A single

disk will be able to be mirrored to another drive, creating a RAID 1 array).

Note: If you enable the Export JBOD Disks option, the controller recognizes and

displays as JBODs any drives that were previously connected to 3ware 7000/8000-

series controllers as JBODs. Drives that were previously connected to a 9000-

series controller and configured will not be seen as JBODs.

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AMCC 3WARE 9500S Guía de usuario Pagina 100