AMCC 3WARE 720-0138-00 - Manual (Page 19)

3ware Tools for Configuration and Management
www.3ware.com 11
Through drive coercion, the capacity used for each drive is rounded down so
that drives from differing manufacturers are more likely to be able to be used
as spares for each other. The capacity used for each drive is rounded down to
the nearest GB for drives under 45 GB (45,000,000,000 bytes), and rounded
down to the nearest 5 GB for drives over 45 GB. For example, a 44.3 GB
drive will be rounded down to 44 GB, and a 123 GB drive will be rounded
down to 120 GB. For more information, see the discussion of drive coercion
under “Creating a Hot Spare” on page 42.
3ware Tools for Configuration and
Management
3ware software tools let you easily configure the drives attached to your
3ware RAID controller, specifying which drives should be used together as a
RAID unit and the type of RAID configuration you want, and designating hot
spares for use if a drive degrades.
3ware provides the following tools for use in configuring and managing units
attached to the 3ware controller:
• 3DM 2 (3ware Disk Manager)
3DM runs in the background on the controller’s host system, and can be
accessed through a web browser to provide ongoing monitoring and
administration of the controller and associated drives. It can be used
locally or remotely.
For details about working with 3DM, see “3DM 2 (3ware Disk Manager)
Introduction” on page 14.
Using 3DM to manage your 3ware RAID controller is discussed
throughout this manual.
3DM 2 is the current version of the 3ware Disk Manager. Throughout this
documentation, it is referred to interchangeably as 3DM and 3DM 2.
• 3ware CLI (Command Line Interface)
The 3ware CLI provides the functionality available in 3DM through a
Command Line Interface. You can view unit status and version
information and perform maintenance functions such as adding or
removing drives, and reconfiguring RAID units online. You can also use
it to remotely administer controllers in a system.
The 3ware CLI is described in 3ware 9000 Series Serial ATA RAID
Controller CLI Guide and in the 3ware HTML Bookshelf.