Chapter 6. 3ware Disk Manager (3DM 2)90 3ware Serial ATA RAID Controller User GuideVolumes. Displays the number of volumes in a unit. This is usually 1. If youcreated a boot volume on this unit, or if you have a unit on which you haveenabled the auto-carving policy, you will see the number of volumes intowhich the unit has been divided. For more information, see “Using Auto-Carving for Multi LUN Support” on page 121.Stripe. The stripe size of the unit, if applicable.Subunits. If the unit has subunits, details of the subunits are shown.Note: If an asterisk (*) appears next to the status of a subunit, there is an erroron one of the drives in the subunit. This feature provides a diagnosticcapability 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 nolonger exists.Port #. If the Type is Disk, Single Disk, JBOD, or Spare, the port to which thedrive is connected is shown. For multiple drive units, the port numbers areshown in the subunits section. The port number is a link to the DriveInformation page.Drive Information PageFigure 39. Drive Information PageThe Drive Information page appears when you choose Information > DriveInformation from the menu bar, or when you click a port # on the Unit Detailspage. If you arrive at this page from the port # hyperlink on the UnitInformation page, the line showing the port # you clicked on is highlighted.The Drive Information page shows a list of drives on the controller specifiedin the drop-down list on the menu bar, and a summary of each one.