Hardware User's Guide

Intel® RAID Controller RS2WC080 Hardware User’s Guide 5
• Supports SMP to communicate topology management information.
• Supports single PHY or wide ports consisting of 2, 3, or 4 PHYs within a single
quad port.
• Allows addressing of multiple SATA targets through an expander if using SATA 2.0-
compliant hard disk drives.
• Allows multiple initiators to address a single target (in a fail-over configuration)
through an expander.
Note: All expander features will not be available at launch.
Online Capacity Expansion and RAID Level Migration Rules
• Migration must occur to the same or larger capacity configuration.
• Migration cannot occur if there is more than one virtual disk in an array.
• Migration and OCE cannot be done on Spanned Arrays (RAID 10 and 50).
• Migrations supported are RAID 1 to RAID 0, RAID 5 to RAID 0.
• With OCE, migrations supported are RAID 0 to RAID 1, RAID 0 to RAID 5, and
RAID 1 to RAID 5.