AMCC 720-0138-00 Deleting a Unit, To inform the operating system that a unit has been changed

Chapter 5. Configuring Units

Note: This step can only be done after the system has completed the migration or online capacity process. The operating system will not see the capacity until that process is complete.

To inform the operating system that a unit has been changed

1Unmount the file system from the unit.

Launch the Macintosh Disk Utility, select the unit, and click the Unmount button the toolbar, or select the icon for the unit on the desktop and drag it to the trash.

2In the software, remove and rescan the controller, in order to update unit information.

a In 3DM2 choose Management > Maintenance and select the appropriate unit.

a Click the Remove Unit button.

b After the unit has been removed, click the Rescan button. The new unit capacity displays.

4 Resize the partition and file system or create a new partition.

Deleting a Unit

You delete a unit—either an array of disks, or a Single Disk—when you want to reconfigure the unit or use the drives for other purposes.

After you delete a unit, the drives appear in the list of Available Drives.

Warning: When a unit is deleted, all of the data on that unit will be lost. The drives cannot be reassembled into the same unit because the data on it is erased. If you want to reassemble the drives into the same unit on another controller, use the Remove Unit button in 3DM instead of the Delete Unit button. Or, you can shut down the computer and physically move the drives or the 3ware Sidecar containing the drives to another 3ware RAID controller. When you restart your system, the controller will recognize the unit. For more information see “Moving a Unit from One Controller to Another” on page 57.

To delete a unit through 3DM

1Make sure the operating system is not accessing the unit you want to remove.

For example, make sure you are not copying files to the unit, and make sure that there are no applications with open files on that unit.

54 3ware Serial ATA RAID Controller User Guide for the Power Mac G5