3Ware 9550SX-4LP User Manual page 106

Chapter 6. 3ware Disk Manager (3DM 2)
performance, including whether FUA (Forced Unit Access) is honored,
whether Write Journaling is enabled, and whether Disable Cache on Degrade
is enabled. For additional information, see "Setting the StorSave Profile for a
Unit" on page 149.
Unit Names
On 9000-series controllers, units can be assigned names. A name can be
assigned when the unit is created and can be changed from this screen. For
additional information, see "Naming a Unit" on page 141.
Other Controller Settings
For 9000-series controllers, the Other Controller settings displays information
about additional settings, some of which can only be changed in the BIOS
(3BM). For more information see "Viewing and Seting Controller Policies"
on page 117.
This section does not appear for 7000- and 8000- series controllers.
Auto-Rebuild.
determines how the controller firmware will attempt to rebuild degraded
units.
When Auto-Rebuild is disabled, only spares will be used to automatically
rebuild degraded units. When Auto-Rebuild is enabled, the firmware will
automatically select drives to use for rebuilding a degraded unit using the
following priority order.
• Smallest usable spare.
• Smallest usable unconfigured (available) drive.
• Smallest usable failed drive.
For additional information, see "Setting the Auto-Rebuild Policy" on
page 120.
Auto-Carving.
appropriate radio button.
When this feature is enabled, any unit that is over a specified size (known as
the carve size) will be broken down into multiple volumes of that size, plus a
remainder volume. The default carve size is 2048 GB (2 TB). For example,
using the default carve size, if the unit is 2.5 TB then it will contain two
volumes, with the first volume containing 2 TB and the second volume
containing 0.5 TB. If the unit is 5.0 TB then it will contain 3 volumes, with
96
If the write cache setting is disabled for a unit, the StorSave
Note:
Profile capability does not apply and is automatically disabled.
For 9550SX and 9590SE controllers, the Auto-Rebuild policy
Auto-carving can be enabled or disabled by selecting the
3ware Serial ATA RAID Controller User Guide