LSI 25083 manual Configuration Scenarios

Page 24

3Gb/s SATA II

Staggered spin-up

Hot plug

Native command queuing

Activity and fault indicators for each PHY

Port selector (for dual-port drives)

Each port on the SAS controllers supports SAS devices, SATA II devices, or both using SSP, SMP, STP, and SATA II. SSP enables communication with other SAS devices. SATA II enables the SAS controllers to communicate with other SATA II devices.

1.4Configuration Scenarios

There are three main scenarios in which you can use the SAS RAID controllers:

Low-end, internal SATA II configurations: In this configuration, use the RAID controller as a high-end SATA II compatible controller that connects up to eight drives either directly or through a port expander.

This configuration is mostly for low-end or entry servers. Enclosure management is provided through out-of-band I2C bus. Side bands of

both types of internal SAS connectors support the SFF-8485 (SGPIO) interface.

Midrange internal SAS configurations: This is like the internal SATA II configurations, but with high-end SAS drives. This is more suitable for low-range to midrange servers.

High-end external SAS/SATA II configurations: This configuration is for external connectivity using SATA II drives, SAS drives, or both. External enclosure management is supported through in-band,SCSI-enclosed storage. The configuration must support STP and SMP.

Figure 1.1 shows a direct-connect configuration. The Inter-IC (I2C) interface communicates with peripherals. The external memory bus provides a 32-bit memory bus, parity checking, and chip select signals for pipelined synchronous burst static random access memory

1-6Overview

Copyright © 2009 by LSI Corporation. All rights reserved.

Image 24
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 GuideConventions Revision HistoryNotation Example Meaning and Use 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 Connectors MegaRAID SAS 9260 RAID ControllersSAS 9240-4i/SAS 9240-8i RAID Controller Jumpers 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 MegaRAID SAS 6Gb/s RAID Controller Characteristics MegaRAID 6Gb/s SAS RAID Controller CharacteristicsData Transfer Rates Scsi Features Termination Flash SerialTechnical Specifications RAID Controller Specifications RAID Controller SpecificationsSpecification RAID Controllers MegaRAID SAS 9240, SAS 9260, SAS 9261, and SASArray Performance Features Array Performance FeaturesSpecification 9261, and SAS 9280 RAID Controllers MegaRAID SAS 9240, SAS 9260, SASFault Tolerance Electrical CharacteristicsFault Tolerance Features 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 ControllersConfiguration Device driverDomain ValidationHost Host adapterBoard Hot sparePeripheral devices RAID levelsSAS device Stripe sizeStriping Customer Feedback Reader’s Comments Excellent Good Average Fair