Avago Technologies 3ware 9650SE-12ML (Channel) - Manual (Page 100)

Configuring Your Controller
88 3ware SAS/SATA RAID Software User Guide, Version 9.5.1
5 On the pop-up menu, select Controller and press Enter .
The Controller Information page displays.
Figure 37. Controller Information page
About Controller Policies
The following policies affect all units and drives on a controller and can be
adjusted as appropriate for your equipment. Controller policies are shown at
the bottom of the Controller Settings page in 3DM (Figure 38) and on the
Policy Control screen in 3BM (Figure 39).
• Auto Rebuild. Determines whether the Auto Rebuild policy is enabled or
disabled. When disabled, degraded units can only be rebuilt with
designated spares. When enabled, the controller firmware will
automatically attempt to rebuild a degraded unit if there is no spare, using
either an available drive or a failed drive.
• Auto-Carving. Determines whether the auto-carving policy is enabled or
disabled. When it is enabled, any unit larger than a specified size (known
as the carve size) is broken into multiple volumes that can be addressed
by the operating system as separate volumes. The default carve size is 2
TB.
This auto-carving feature is sometimes referred to as multi-LUN, where
each volume that is created is referred to as a “LUN.”
• Carve Size. (Referred to as Carving Factor in 3BM) Sets the size for
dividing up units into volumes when Auto-Carving is enabled. This
setting can be between 1024 GB and 32768 GB.
• Staggered spin-up. Spin-up allows drives to be powered-up into the
Standby power management state to minimize in-rush current at power-up
and to allow the controller to sequence the spin-up of drives. Compatible
drives are sent a spin up command based on the settings specified with the