LSI 25083 manual Array Performance Features, MegaRAID SAS 9240, SAS 9260, SAS

Table 3.7	RAID Controller Specifications (Cont.)
		MegaRAID SAS 9240, SAS 9260, SAS 9261, and SAS
Specification		9280 RAID Controllers
PCI Express bus		• Up to 5 Gb/s per lane
data transfer rate		• x8 lane width
Serial port		4-pin RS232-compatible connector (for manufacturing
		use only)
SAS controller		• LSISAS2108 Single SAS controller
		• LSISAS2008 PCI Express-SAS/SATA I/O Processor
		chip
SAS bus speed		6Gb/s
SAS ports		SAS connectors with four SAS ports each
Cache configuration		The RAID controllers support the following battery-backed
		cache configuration:
		• 512 MB – 72b arrangement (5) 64Mx16, Double Data
		Rate II (DDR2) @ 800 MHz battery-backed module
Size of flash ROM		8 Mbytes
for firmware
Nonvolatile random		32 Kbytes for storing RAID configurations
access memory
(NVRAM)

3.3.2Array Performance Features

Table 3.8 shows the array performance features for the MegaRAID 6Gb/s SAS RAID controllers.

Table 3.8	Array Performance Features
		MegaRAID SAS 9240, SAS 9260, SAS
Specification		9261, and SAS 9280 RAID Controllers
PCI Express host data transfer rate		5Gb/s per lane
Drive data transfer rate		6Gb/s per lane
Maximum scatter/gather I/O		80 elements
Maximum size of I/O requests		6.4 Mbytes in 64-Kbyte stripes

3-16	MegaRAID SAS RAID Controller Characteristics
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