Hardware User Guide

Intel® Integrated RAID Module RMT3PB080 and RMT3CB080 Hardware User’s Guide 19
Flash ROM
An 16-MB CFI-compliant flash ROM is used to accommodate RAID firmware and RAID
BIOS Console 2 OpROM.
Boot Strap ROM (SEEPROM)
The serial bootstrap ROM is used to configure the LSI* SAS2208 ROC before the server
board configures the PCI Express* registers. The bootstrap ROM sets the Phase Lock
Loop (PLL) dividers, bootstrap configuration, and so on.
NVSRAM
A 128-KB NVSRAM is used to store disk and drive setup information.
SDRAM (Cache)
The Intel
®
Integrated RAID Module RMT3PB080 and RMT3CB080 include 512 MB of
integrated DDR3 1333 MHz ECC SDRAM memory. This DIMM is connected directly to
the memory controller interface bus of the ROC and serves as storage for the executable
code transferred from the flash. It also serves as cache during RAID transactions. Cache
mode selection takes immediate effect while the server is online and is available on a per
virtual drive basis. The ROC memory controller provides single-bit ECC error correction
with multi-bit detection support.
TheIntel
®
Integrated RAID Module RMT3PB080 and RMT3CB080 support Intel
®
RAID
Smart Battery AXXRSBBU9 and Intel
®
RAID Maintenance Free Backup Unit
AXXRMFBU2.
The optional Intel
®
RAID Smart Battery AXXRSBBU9 provides a battery backup option
for data cached in the memory. It is connected remotely to the RAID module through a
supplied cable. See the figure below (for reference only). Actual shape of the product may
vary from the figure.
Figure 11. Intel
®
RAID Smart Battery AXXRSBBU9