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12Gb/s MegaRAID SAS RAID Controllers User Guide

April 2014

Chapter 3: MegaRAID SAS RAID Controller Characteristics

Technical Specifications

3.3.2 Array Performance Features

The following table shows the array performance features for the 12Gb/s MegaRAID SATA+SAS RAID controllers.

Card size MegaRAID SAS 9341 RAID controller: Low-profile PCIe adapter card size (68.90 mm ×

152.35 mm)

MegaRAID SAS 9361 RAID controller: Low-profile PCIe adapter card size (68.90 mm ×

167.65 mm)

MegaRAID SAS 9380-4i4e RAID controller: Low-profile PCIe adapter card size (68.90 mm ×

167.65 mm)

MegaRAID SAS 9380-8e RAID controller: Low-profile PCIe adapter card size (68.90 mm ×

167.65 mm)

Array interface to the host PCIe Rev. 3.0

PCI Express bus data transfer rate  Up to 8GB/s per lane

 x8 lane width

Serial port 4-pin RS232-compatible connector (for manufacturing use only)

SAS controller MegaRAID SAS 9341 RAID controller: LSISAS3008 Single SAS controller

MegaRAID SAS 9361 RAID controller: LSISAS3108 Single SAS controller

MegaRAID SAS 9380-4i4e RAID controller: LSISAS3108 Single SAS controller

MegaRAID SAS 9380-8e RAID controller: LSISAS3108 Single SAS controller

SAS bus speed 12GB/s

SAS ports SAS connectors with four SAS ports each

Cache configuration The MegaRAID SAS 9361, 9380-4i4e, and 9380-8e controllers support the following

cache configuration:

 1 GB – 72b arrangement (5) 128Mbx16, Double Data Rate III (DDR3) at 1866 MHz with

ONFI Cache Offload Support

Size of flash ROM for firmware 16 MB

NVSRAM 32 KB for storing RAID configurations

Table 9 Array Performance Features

Specification

MegaRAID SAS 9341-4i RAID Controller, MegaRAID SAS 9341-8i RAID Controller,

MegaRAID SAS 9361-4i RAID Controller, MegaRAID SAS 9361-8i RAID Controller,

MegaRAID SAS 9380-4i4e RAID Controller, MegaRAID SAS 9380-8e RAID Controller

PCI Express host data transfer rate 8GB/s per lane

Drive data transfer rate 12GB/s per lane

Maximum scatter/gather I/O 80 elements

Maximum size of I/O requests 6.4 MB in 64-KB strips

Maximum queue tags per drive As many as the drive can accept

Strip sizes 8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB

Maximum number of concurrent

commands

255

Table 8 RAID Controller Specifications (Continued)

Specification

MegaRAID SAS 9341-4i RAID Controller, MegaRAID SAS 9341-8i RAID Controller,

MegaRAID SAS 9361-4i RAID Controller, MegaRAID SAS 9361-8i RAID Controller,

MegaRAID SAS 9380-4i4e RAID Controller, MegaRAID SAS 9380-8e RAID Controller

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