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Summary of MegaRAID 8480 RAID Controller Characteristics 1-9
Copyright © 2006-2007 by LSI Corporation. All rights reserved.
• Two external connectors
• Support for RAID levels 0, 1, 5, 10, and 50
• Advanced array configuration and management utilities
• Online RAID level migration
• Drive migration
• Drive roaming
• Patrol Read
• No reboot necessary after expansion
• More than 200 Qtags per array
• User-specified rebuild rate
• 32 Kbyte nonvolatile random access memory (NVRAM) for storing
RAID system configuration information; the MegaRAID SAS firmware
is stored in flash ROM for easy upgrade.
1.6.1 SAS Features
The following list describes the SAS features:
• Provides eight fully independent PHYs
• Supports 3.0 Gbit/s SAS data transfers per PHY
• Supports SSP to enable communication with other SAS devices
• Supports SMP to communicate topology management information
• Provides a serial, point-to-point, enterprise-level storage interface
• Simplifies cabling between devices
• Provides a scalable interface that supports up to 128 devices through
multiple expanders
• Supports wide ports consisting of 2, 3, or 4 PHYs within a single
quad port
• Supports narrow ports consisting of a single PHY
• Transfers data using SCSI information units
1.6.2 SATA II Features
The following list describes the SATA II features: