Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 206)

Chapter 11. 3DM2 Reference
194 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
in the menu bar continues to display “Unit Information” even when you view
details of a unit.
The Unit Details page shows details about a particular unit. The specific
information shown depends on what type of unit it is. For example, details
about a RAID 5 unit made up of three subunits, each of which contains one
drive, will include details about the unit and each subunit, as shown in
Figure 97. However, if the unit is a Single Disk, only information about one
disk will be shown.
Details on this page may include all or some of the following information
described below.
To see details about a particular drive, click the VPort # (virtual port number).
You’ll see a list of all drives, with the drive you selected highlighted.
Status. The operational status of the unit or subunit: OK, Rebuilding,
Migrating, Initializing, Verifying, Degraded, or Inoperable (missing drives).
When a unit is Rebuilding, Initializing, or Verifying, the percentage (%)
complete is also shown. For status definitions, see “Unit Statuses” on
page 137.
Name. The name assigned to the unit by an administrator.
Serial #. The serial number of the unit. This number is assigned by the
firmware when the unit is created.
Capacity. The total capacity of the unit (capacities of subunits are not shown).
Type. The type of unit or subunit. RAID 0, RAID 1, RAID 5, RAID 6, RAID
10, RAID 50, or Single Disk.
Stripe. The stripe size of the unit, if applicable.
Parities. The number of parity drives in the RAID unit.
Volumes. Displays the number of volumes in a unit. This is usually 1. If you
created a boot volume on this unit, or if you have a unit on which you have
enabled the auto-carving policy, you will see the number of volumes into
which the unit has been divided. For more information, see “Using Auto-
Carving for Multi LUN Support” on page 71.
Subunits. If the unit has subunits, details of the subunits are shown.
VPort #. If the unit Type is Disk, Single Disk, the VPort (Virtual Port) to
which the drive is connected is shown. For multiple-drive units, the VPort
Note: If an asterisk (*) appears next to the status of a subunit, there is an error on
one of the drives in the subunit. 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.