Chapter 8. Configuring Units
126
3ware Serial ATA RAID Controller User Guide
If you have incomplete drives, or drives that appear with a message such as
“Unsupported DCB,” indicating that they were previously part of a unit on a
3ware 7000/8000 series controller, they must be deleted before you use them.
(If you want to move a unit from a 7/8000 controller to a 9000 series
controller, you must convert the drives first. For more information, see
“Moving a Unit from One Controller to Another” on page 131.)
Deleting a Unit through 3DM
In 3DM, the command for deleting a unit is on the
Maintenance
page. Be
sure to follow steps 1 through 3 in the instructions before using the Delete
command.
To delete a unit through 3DM
1
Make 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.
2
Backup any data you want to keep.
3
Unmount the unit.
This step is very important.
If a unit is not unmounted and you delete it,
it is the equivalent of physically yanking a hard drive out from under the
operating system. You could lose data, the system could hang, or the
controller could reset.
Under Windows, go to
Start > Administrative Tools > Computer
Management
, and select
Disk Management.
Remove the logical drive
letter for the unit.
Under Linux and FreeBSD, you can unmount the unit with this command:
umount <mount location>
4
In 3DM, choose
Management > Maintenance
.
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, if you’re at the
BIOS level already, you can shut down the computer and physically move the drives
to another 3ware 9000 series 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 131.
