Intel RT3WB080 Hardware User Guide - Page 15

SAS/SATA Features of the LSISAS2108 Controller • Provides eight independent phys, each supporting 6Gb/s and 3Gb/s SATA data transfers per PHY. • Scalable interface that supports up to 16 physical devices and 64 virtual drives through expanders. • 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 3.0- compliant hard disk drives. • Allows multiple initiators to address a single target (in a fail-over configuration) through an expander. 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, 50, 60). • Migrations supported are RAID 1 to RAID 0, RAID 5 to RAID 0, RAID 6 to RAID 5, and RAID 6 to RAID 0. • With OCE, migrations supported are RAID 0 to RAID 1, RAID 0 to RAID 5, RAID 5 to RAID 6, RAID 1 to RAID 6, and RAID 1 to RAID 5. Beep Codes • Short beep (1 second on, 1 second off): Array has degraded but no data has been lost. • Long beep (3 seconds on, 1 second off): Array has failed and data has been lost. • Short beep (1 second on, 3 seconds off): Using hot spare in rebuild; alarm will continue during rebuild with a different sound at completion. To disable the alarm, choose Disable Alarm. To enable the alarm, choose Enable Alarm To disable the alarm only until the next event or until next power cycle, choose Silence Alarm. Intel® RAID Controller RT3WB080 Hardware User's Guide 5