Modular RAID Controllers
91
Modular RAID 12Gb/s (SAS3.0)
5.3.1
Features
The RAID controller "PRAID CM400i" implements the LSI SAS3108 which is an
integrated SAS and I/O controller with dual embedded Power PC 476 cores
running at speeds up to 1.2 GHz. The LSI SAS3108 also provides the following
functionalities:
●
Provides an 8-lane 8.0 Gbit PCIe 3.0 host bus.
●
Provides an 8-port 12Gb/s SAS3 and 6Gb/s SATA3 interface.
●
Provides a 40-bit or a 72-bit 1866-MHz DDR3 SDRAM interface with a
hardware RAID assist engine for parity calculations.
●
Six I
2
C interfaces used for Serial Boot strap ROM connection, memory
detection, PCI-E SMBus connectivity, battery / smart charger control, and
SAS sideband control.
●
Integrated dual UART for MegaRAID
®
diagnostic use only.
●
Two banks of SGPIO signals to accompany the two sets of x4 SAS / SATA
ports.
●
16MB Flash
●
1kB Bootstrap EEPROM
●
Raid-key chip onboard
5.3.2
Controller versions
Name
Chip
PCIe
Cache
No. of SAS
channels
Bracket
type
PRAID CM400i
S26361-
D2937-A10
LSI SAS3108 PCIe 3.0
no
8
low profile
full height
