Intel RMS3CC040 Hardware User Guide - Page 15

Feature RS3WC080/ RMS3HC080 RS3DC040 RS3DC080/ RMS3CC080 RS3MC044 RS3SC008 Advanced array configuration and Yes Yes Yes Yes Yes management utilities offer these capabilities: • Online capacity expansion to add space to an existing drive or a new drive • Online RAID level migration • Drive migration • Drive roaming • No reboot necessary after expansion • Load balancing • Media scan User-specified rebuild rate Yes Yes Yes Yes Yes (specifying the percentage of system resources to use from 0 percent to 100 percent) Nonvolatile random access memory Yes Yes Yes Yes Yes (NVRAM) of 32 KB for storing RAID system configuration information; the MegaRAID SAS firmware is stored in flash ROM for easy upgrade. Full MegaRAID Software Stack No Yes Yes Yes Yes iMR Software Stack Yes No No No No SAS Features The 12Gb/s Intel® RAID Controllers support the following SAS features: • They provide four fully independent PHYs or eight fully independent PHYs, depending on the controller. • They support 12 Gb/s, 6Gb/s and 3Gb/s SAS data transfers per PHY. • They support SMP to communicate topology-management information. • They support SSP to enable communication with other SAS devices. • They support STP to enable communication with SATA devices through an attached expander. • They provide a serial, point-to-point, enterprise-level storage interface. • They simplify cabling between devices. • They provide a scalable interface that supports up to 240 devices through the use of expanders. 12Gb/s Intel® RAID Controllers User Guide 8