Chapter 6. 3ware Disk Manager (3DM 2)
88 3ware Serial ATA RAID Controller User Guide
Unit #.
The unit number assigned to the unit by the firmware. For 9000-series
controllers, unit numbers are in sequential order.
Name. For 9000series controllers, if a name has been given to this unit, it
shows here. If it is empty, no name has been assigned. You can name your unit
in the
Unit Names section of the Management > Controller Settings page.
Type. The type of unit, specified during configuration: RAID 0, RAID 1,
RAID 5, RAID 10, RAID 50, Single Disk, JBOD, or Spare. For details about
each of the RAID levels, see “Understanding RAID Concepts and Levels” on
page 5.
Capacity. The logical capacity (size) of the unit.
Note: 3DM 2 displays the capacity (in MBytes or GBytes) the
same way that Microsoft Windows and Linux operating systems
do: as 1KB = 1024 bytes. Previous versions of 3DM 1.x used the
1KB = 1000 bytes definition. Consequently capacities of units
listed under 3DM v 1.x may appear to be larger than they do under
3DM 2.
Status. The operational status of the unit: OK, Rebuilding, Initializing,
Migrating, Verifying, Degraded, or Inoperable (missing drives). When a unit
is Rebuilding, Initializing, Migrating, or Verifying, the percentage (%)
complete is also shown.
Note: If an asterisk (*) appears next to the status of a unit, there is an error on
one of the drives in the unit. This feature provides a diagnostic capability for
potential problem drives. The error may not be a repeated error, and may be
caused by an ECC error, SMART failure, or a device error. Rescanning the
controller will clear the drive error status if the condition no longer exists.
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