IBM ServeRAID M5025, User Manual

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Summary of the ServeRAID M5025 SAS/SATA Controller Characteristics 1-9
The ServeRAID M5025 controllers use Fusion-MPT™ architecture for all
major operating systems, thinner drivers, and better performance.
1.6 Summary of the ServeRAID M5025 SAS/SATA Controller
Characteristics
This section provides a summary of the features and benefits of the
ServeRAID M5025 controller controller. It contains information on SAS
features, SATA II features, PCI performance, integration, usability, and
flexibility.
The ServeRAID M5025 controller offers the following features:

PCI Express x8 lane width

PCI Express performance up to 5 Gbits/s per lane

Support for 512-Mbyte DDR2 800 MHz on-board SDRAM intelligent
battery backed module

Two external connectors

Support for RAID levels 0, 1, 5, 6, 10, 50, and 60

Advanced array configuration and management utilities

Online RAID level migration

Drive migration

Drive roaming

Media scan

No reboot necessary after expansion

More than 200 Qtags per array

Hardware clustering support on the board

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.