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

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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

 

Copyright © 2009 by LSI Corporation. All rights reserved.

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Contents USER’S Guide V e m b e r 2 0 0Trademark Acknowledgment Preface Audience OrganizationDocument Number 80-00163-01 Rev. D MegaRAID SAS Software User’s GuideNotation Example Meaning and Use ConventionsRevision History Fd1spSafety Instructions When Working Inside Your Computer Preface XPreface Contents Appendix a Glossary of Terms Abbreviations Customer Feedback XivContents Figures XviContents Tables XviiiContents Chapter Overview Overview2Overview SAS Controller Descriptions General Description General Description Configuration Scenarios Example of an LSI SAS Direct-Connect Application Benefits of the SAS Interface PCI Express ArchitectureSummary of SAS RAID Controller Characteristics Operating System SupportSAS Features SAS Array Limitations SAS RAID Controller Array Limitations12Overview Sata II Features Usability FeaturesPCI Express Performance Flexibility Features Drive RoamingDrive Migration 16Overview Hardware Specifications MegaRAID 6Gb/s SAS RAID Controller Features18Overview Technical Support Mail Phone Support20Overview Chapter MegaRAID SAS Hardware Installation RequirementsQuick Installation Detailed Installation Detailed InstallationBracket Screw Detailed Installation After Installing the RAID Controller SAS Device Cables and ConnectorsSAS Device Cables and Connectors Sata II Connectors Serial Attached Scsi SAS Backplane Receptacle Connector Connecting the SAS 9260-8i RAID Controller to a Drive To Drive Enclosure Mini SAS Cable Plug Connector MegaRAID SAS Hardware Installation MegaRAID 6Gb/s SAS RAID Controller Family MegaRAID SAS 9240 RAID ControllersCard Layout for the MegaRAID SAS 9240-8i RAID Controller SAS 9240-4i/SAS 9240-8i RAID Controller Jumpers ConnectorsMegaRAID SAS 9260 RAID Controllers Jumper Type DescriptionCard Layout for the MegaRAID SAS 9260-8i RAID Controller SAS 9260-8i/SAS 9260DE-8i RAID Controller Jumpers JT1MegaRAID SAS 9261 RAID Controller MegaRAID SAS Software User’s Guide forCard Layout for the MegaRAID SAS 9261-8i RAID Controller SAS 9261-8i RAID Controller JumpersMegaRAID SAS 9280 RAID Controllers JT6B2Connector Description Comments SAS 9280-8e and SAS 9280DE-8e RAID ControllersSAS 9280-8e and SAS 9280DE-8e RAID Controllers SAS 9280-4i/4e RAID Controller Connectors Card Layout for the MegaRAID SAS 9280-4i/4e RAID ControllerIpmi Data Transfer Rates Scsi Features Termination MegaRAID SAS 6Gb/s RAID Controller CharacteristicsMegaRAID 6Gb/s SAS RAID Controller Characteristics Flash SerialTechnical Specifications Specification RAID Controllers RAID Controller SpecificationsRAID Controller Specifications MegaRAID SAS 9240, SAS 9260, SAS 9261, and SASSpecification 9261, and SAS 9280 RAID Controllers Array Performance FeaturesArray Performance Features MegaRAID SAS 9240, SAS 9260, SASFault Tolerance Features Fault ToleranceElectrical Characteristics Power Supply Requirements for SAS 9240 RAID Controllers10 Power Supply for SAS 9240 RAID Controllers Power Supply Requirements for SAS 9260 RAID ControllersPCI Edge Connector State 11 Power Supply for SAS 9260 RAID Controllers Power Supply Requirements for the SAS 9261 RAID Controller 12 Power Supply for SAS 9261 RAID ControllersPower Supply Requirements for SAS 9280 RAID Controllers Safety Characteristics 13 Power Supply for SAS 9280 RAID ControllersDomain ConfigurationDevice driver ValidationBoard HostHost adapter Hot sparePeripheral devices RAID levelsSAS device Stripe sizeStriping Customer Feedback Reader’s Comments Excellent Good Average Fair