3Ware 9550SXU-16ML User Guide - Page 133

Viewing and Setting Controller Policies the default of 2 TB, up to 8 individual 2 TB volumes will be created from the unit. For example, a 5 TB unit would become 3 volumes; two 2 TB volumes and one 1 TB volume. (After creating as many volumes as possible of the specified carvesize, any remainder will create a final volume.) 3 Verify the creation of the volumes through 3DM 2 or the CLI. In 3DM 2, the number of volumes is shown on the Unit Details page. 4 Verify that the volumes appear in the operating system. They will appear as additional drives. Notes: „ If you are configuring a unit for primary storage and it will be greater than 2 TB, be sure to enable the auto-carve policy before creating the unit. „ When volumes have been created through auto-carving, they cannot be deleted except by deleting the unit. „ If you create a bootable unit that has multiple volumes, the first volume is always used as the boot device. „ Changing the auto-carve policy does not affect existing units. To set the size of volumes created with auto-carving „ Using the 3ware CLI, use the command /cx set carvesize to specify the size for volumes The size can be between 1024Gb and 2048Gb For more information, see the 3ware 9000 Series Serial ATA RAID Controller CLI Guide. Setting the Auto-Rebuild Policy For 9550SX controllers, the Auto-Rebuild policy determines how the controller firmware will attempt to rebuild degraded units. When Auto-Rebuild is disabled, only spares will be automatically used to rebuild degraded units. When Auto-Rebuild is enabled, the firmware will select drives to use for automatically rebuilding a degraded unit using the following priority order. „ Smallest usable spare. „ Smallest usable unconfigured (available) drive. „ Smallest usable failed drive. www.3ware.com 123