USER’S GUIDE MegaRAID® 6Gb/s SAS RAID Controllers July 2009 41450- 02A 41450-02 Rev.
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Preface This document is the primary reference and user’s guide for the LSI MegaRAID® Serial Attached SCSI/SATA II RAID controllers based on the 6Gb/s SAS/SATA RAID On-a-Chip devices. This document contains complete installation instructions for these RAID controllers and includes specifications for them. The MegaRAID 6Gb/s Serial Attached SCSI (SAS) RAID controller family consists of the following controllers: • MegaRAID SAS 9260-4i PCI Express 2.
Audience This document assumes that you have some familiarity with RAID controllers and related support devices. The people who benefit from this document are: • Engineers who are designing a system that will include a MegaRAID 6Gb/s SAS RAID controller • Anyone who is installing a MegaRAID 6Gb/s SAS RAID controller in a system Organization This document contains the following chapters and appendix: • Chapter 1, Overview, provides an overview of the MegaRAID 6Gb/s SAS RAID controllers.
This document describes how to use the MegaRAID Storage Manager, WebBIOS, and command line interface (CLI) utilities to configure, monitor, and maintain MegaRAID SAS RAID controllers and the storage-related devices connected to them. Conventions The following table describes how the user interacts with the product. Notation Example Meaning and Use Courier typeface .nwk file Names of commands, files, and directories, as well as code and screen messages, are shown in Courier.
Safety Instructions Use the following safety guidelines to help protect your computer system from potential damage and to ensure your own personal safety. Note: Use the MegaRAID 6Gb/s SAS RAID controllers with UL-listed Information Technology Equipment (ITE) products only.
• Make sure that equipment does not rest on your computer system cables and that the cables are not located where they can be stepped on or tripped over. • Do not spill food or liquids on your computer. If the computer gets wet, consult the documentation that came with it. • Do not push any objects into the openings of your computer. Doing so can cause fire or electric shock by shorting out interior components. • Keep your computer away from radiators and heat sources.
Protecting Against Electrostatic Discharge – Static electricity can harm delicate components inside your computer. To prevent static damage, discharge static electricity from your body before you touch any of your computer’s electronic components, such as the microprocessor. To discharge static electricity, touch an unpainted metal surface, such as the metal around the card-slot openings at the back of the computer.
Contents Chapter 1 Overview 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Overview SAS Controller Descriptions General Description Configuration Scenarios Benefits of the SAS Interface 1.5.1 PCI Express Architecture 1.5.2 Operating System Support Summary of SAS RAID Controller Characteristics 1.6.1 SAS Features 1.6.2 SATA II Features 1.6.3 PCI Express Performance 1.6.4 Usability Features 1.6.5 Flexibility Features 1.6.6 Drive Roaming 1.6.
2.5.2 Connecting the SAS RAID Controller with External Connectors to a Drive Enclosure 2-10 Chapter 3 MegaRAID SAS RAID Controller Characteristics 3.1 MegaRAID 6Gb/s SAS RAID Controller Family 3.1.1 MegaRAID SAS 9260 RAID Controllers 3.1.2 MegaRAID SAS 9280-8e RAID Controller 3.2 MegaRAID SAS 6Gb/s RAID Controller Characteristics 3.3 Technical Specifications 3.3.1 RAID Controller Specifications 3.3.2 Array Performance Features 3.3.3 Fault Tolerance 3.3.
Figures 1.1 1.2 2.1 2.2 2.3 2.4 2.5 2.6 3.1 3.
xii Contents Copyright © 2009 by LSI Corporation. All rights reserved.
Tables 1.1 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 MegaRAID 6Gb/s SAS RAID Controller Comparisons SAS 9260-8i/SAS 9280DE-8i RAID Controller – Jumpers and Connectors SAS 9280-8e and SAS 9280DE-8e RAID Controllers – Connectors MegaRAID 6Gb/s SAS RAID Controller Characteristics RAID Controller Specifications Array Performance Features Fault Tolerance Features Power Supply for the SAS 9260 RAID Controllers Power Supply for the SAS 9280 RAID Controllers Contents Copyright © 2009 by LSI Corporation.
xiv Contents Copyright © 2009 by LSI Corporation. All rights reserved.
Chapter 1 Overview This chapter provides an overview of the MegaRAID 6Gb/s Serial Attached SCSI/Serial ATA II controllers with RAID control capability. It consists of the following sections: 1.1 • Section 1.1, “Overview” • Section 1.2, “SAS Controller Descriptions” • Section 1.3, “General Description” • Section 1.4, “Configuration Scenarios” • Section 1.5, “Benefits of the SAS Interface” • Section 1.6, “Summary of SAS RAID Controller Characteristics” • Section 1.
two similar technologies on the same controller, within the same enclosure, and in the same virtual drive. Note: LSI recommends that you carefully assess any decision to mix SAS drives and SATA drives within the same virtual drives. Although you can mix drives, LSI strongly discourages the practice. LSI offers a family of MegaRAID SAS RAID controllers addressing the needs for both internal and external solutions.
The SAS controllers support the ANSI Serial Attached SCSI standard, version 2.0. In addition, the controller supports the SATA II protocol defined by the Serial ATA specification, version 1.0a. Supporting both the SAS interface and the SATA II interface, the SAS controller is a versatile controller that provides the backbone of both server and high-end workstation environments. Each port on the SAS RAID controller supports SAS devices, SATA II devices, or both, using the following protocols: 1.
external SAS/SATA ports through two SFF-8088 Mini SAS x4 external connectors. • 1.3 The MegaRAID 6Gb/s SAS 9280DE-8e PCI Express 2.0 Low-Profile Serial-Attached SCSI/SATA II Disk Array Controller controls eight external SAS/SATA ports through two SFF-8088 Mini SAS x4 external connectors and offers data security using disk encryption. General Description The MegaRAID 6Gb/s SAS RAID controllers bring 6.0 Gb/s Serial Attached SCSI and 3.
failure. You can select the data backup method that best suits your needs. A hardware RAID assist exclusive-OR (XOR) engine speeds parity generation and checking and reduces system-access times. The SAS RAID controllers integrate eight high-performance SAS/SATA II PHYs and a PCI Express bus master DMA core. Each of the eight PHYs is capable of 6.0 Gb/s SAS link rates and 3.0 Gb/s SATA II link rates. The LSISAS2108 ROC device adheres to the PCI Express Specification, Revision 2.0.
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.
Figure 1.2 Example of an LSI SAS RAID Controller Configured with an LSISASx12 Expander PCI Express Interface 8 SAS RAID Controller LSISAS2108 PCI Express to SAS ROC LSISASx12 Expander 1.5 Peripheral Bus 72-bit DDR/DDR2 with ECC Interface Flash ROM/ NVSRAM/ I2C/UART SRAM SDRAM SRAM LSISASx12 Expander Benefits of the SAS Interface SAS is a serial, point-to-point, enterprise-level device interface that leverages the proven SCSI protocol set.
inherent difficulties created by the legacy ATA master-slave architecture, while maintaining compatibility with existing ATA firmware. 1.5.1 PCI Express Architecture PCI Express is a local bus system designed to increase data transfers without slowing down the central processing unit (CPU). You can install MegaRAID PCI Express RAID controllers in PCI Express computer systems with a standard bracket type. With these controllers in your system, you can connect SAS devices and SATA II devices over the bus.
1.6 Summary of SAS RAID Controller Characteristics This section provides a summary of the features and benefits of the MegaRAID 6Gb/s SAS RAID controllers. It contains information on SAS features, SATA II features, PCI performance, integration, usability, and flexibility.
1.6.1 • User-specified rebuild rate (specifying the percentage of system resources to use from 0%-100%) • 32-Kbyte nonvolatile random access memory (NVRAM) for storing RAID system configuration information; the MegaRAID SAS firmware is stored in flash ROM for easy upgrade.
1.6.3 • Simplifies cabling between devices • Eliminates the master-slave construction used in parallel ATA • Allows addressing of multiple SATA II targets through an expander • Allows multiple initiators to address a single target (in a fail-over configuration) through an expander PCI Express Performance The following list describes the PCI Express performance features of the RAID controllers: • 1.6.
• 1.6.5 Supports the internal SAS Sideband signal SFF-8485 (SGPIO) interface Flexibility Features These features increase the flexibility of the RAID controllers: 1.6.
Step 3. Move the drives to different positions on the backplane to change the targets. Step 4. Determine the SAS target requirements. Step 5. Perform a safety check. a. Make sure that the drives are inserted correctly. b. Close the cabinet of the host system. Step 6. Reconnect the power cords to the system. Step 7. Turn on the power to the system. The controller then detects the RAID configuration from the configuration data on the drives. 1.6.
Step 2. Turn off power to the server and all drives, enclosures, and system components. Disconnect the power cords from the systems. Step 3. Open the host system by following the instructions in the host system technical documentation. Step 4. Either remove the SAS cable connectors from the internal drives, or remove the shielded cables from the external drives that you want to migrate. a. Make sure that pin 1 on the cable matches pin 1 on the connector. b.
Table 1.
Table 1.1 MegaRAID 6Gb/s SAS RAID Controller Comparisons MegaRAID SAS 9260-4i, SAS 9260-8i, SAS 9260DE8i, SAS 9280-8e, and SAS 9280DE-8e Specification Hardware exclusive Yes OR (XOR) assistance Direct I/O Yes Architecture Fusion-MPT 1.8 Technical Support For assistance installing, configuring, or running your MegaRAID 6Gb/s SAS RAID controller, contact LSI Technical Support. Click the following link to access the LSI Technical Support page for storage and board support: http://www.lsi.
Chapter 2 MegaRAID SAS Hardware Installation This chapter describes the procedures you can follow to install the MegaRAID 6Gb/s Serial Attached SCSI/Serial ATA II controllers with internal and external connectors. It consists of the following sections: 2.1 • Section 2.1, “Requirements” • Section 2.2, “Quick Installation” • Section 2.3, “Detailed Installation” • Section 2.4, “After Installing the RAID Controller” • Section 2.
2.2 Quick Installation The following steps are for quick installation of your MegaRAID 6Gb/s SAS RAID controller. These steps are for experienced computer users or installers. Section 2.3, “Detailed Installation,” contains the steps for all others to follow. Step 1. Turn off the power to the system, all drives, enclosures, and system components, and disconnect the PC power cord. Step 2. Open the cabinet of the host system by following the instructions in the host system technical documentation. Step 3.
2.3 Detailed Installation This section provides detailed instructions for installing your MegaRAID 6Gb/s SAS RAID controller. Step 1. Unpack the MegaRAID 6Gb/s SAS RAID controller Unpack and remove your RAID controller. Inspect it for damage. If it appears damaged, or if any of the following items are missing, contact your LSI support representative. The RAID controller is shipped with the following items: Step 2.
Note: Some PCI-E slots support PCI-E graphics cards only; if a RAID controller is installed on those PCI-E slots, it will not function. Figure 2.1 Example of the MegaRAID SAS 9260-8i Board Installation in a PCI Express Slot Bracket Screw Press here Press here 85039-05 Edge of Motherboard PCI-e slot 32-bit slots (3.3 V) 64-bit slots (3.3 V) Step 5.
to Drives,” for information about connecting the controller to drives. The maximum cable length is 6 meters (236.22 in.). You can connect one device per SAS PHY unless you use an expander. System throughput problems can occur if the SAS cables are not the correct type. To minimize the potential for problems, use the following guidelines: a. Use cables no longer than 6 meters (236.22 in.) (LSI recommends using shorter cables, if possible). Step 7. b. Use cables that meet the SAS specification. c.
supported operating systems and download the latest drivers for RAID controllers on the LSI website at: http://www.lsi.com/cm/DownloadSearch.do. For information about installing the driver, refer to the MegaRAID SAS Device Driver Installation User’s Guide on the MegaRAID Universal Software Suite CD. Be sure to use the latest service packs provided by the operating system manufacturer and to review the readme file that accompanies the driver. 2.
Figure 2.2 Internal SAS Cable for Connection to SAS Drives, SATA II Drives, or Both HDD Connector Power Connector 85039-06 Figure 2.3 shows the SATA II device plug connector that connects a SAS RAID controller with internal connectors to the host receptable connector on a backplane. A SATA II connector consists of a signal connector and a power connector. SAS Device Cables and Connectors Copyright © 2009 by LSI Corporation. All rights reserved.
Figure 2.3 SATA II Connectors Device Plug Connector Serial ATA Signal Connector (pin 1) Serial ATA Power Connector (pin 1) Host Receptacle Connector Figure 2.4 shows SAS connectors and SATA II connectors on SAS drives and SATA II drives, respectively. Cables connect internal connectors on the RAID controllers to connectors on SAS drives, SATA II drives, or both. Both SAS drives and SATA II drives can connect to SAS backplane receptable connectors.
Figure 2.4 SAS Plugs and SATA II Plugs and SAS Backplane Receptacle Connector SAS Primary Physical Link Serial Attached SCSI Power SAS Backplane Receptacle Connector SAS Secondary Physical Link Power Serial ATA Power SATA II Physical Link SAS Secondary Physical Link SATA II/SAS Primary Physical Link Note: SATA II backplane connectors do not accept SAS drives.
JT6 is for SAS ports 3-0 and JT7 is for SAS ports 7-4. Step 2. Plug the HDD connector on the other end of the internal cable into the connector on the SAS drive or the SATA II drive. Step 3. If you have another drive, connect it to another plug on the internal cable. You can connect other devices if the cable has more connectors. Figure 2.5 Connecting the SAS 9260-8i RAID Controller to a Drive HDD Connector Power Connector 85039-06 2.5.
Follow these steps to connect the cable from your controller to a drive enclosure. Step 1. Connect the Mini SAS x4 connector on one end of the cable to external port J1A4 or J1B1 on the controller, as shown in Figure 2.6. Step 2. Connect the other end of the Mini SAS x4 cable to the external port on the drive enclosure. Figure 2.
2-12 MegaRAID SAS Hardware Installation Copyright © 2009 by LSI Corporation. All rights reserved.
Chapter 3 MegaRAID SAS RAID Controller Characteristics This chapter describes the characteristics of the LSI MegaRAID Serial Attached SCSI/Serial ATA II 6Gb/s RAID controllers. It consists of the following sections: 3.1 • Section 3.1, “MegaRAID 6Gb/s SAS RAID Controller Family” • Section 3.2, “MegaRAID SAS 6Gb/s RAID Controller Characteristics” • Section 3.
The MegaRAID SAS 9260DE-8i low-profile SAS/SATA II RAID controller controls eight internal SAS/SATA ports through two SFF-8087 Mini SAS 4i internal connectors and offers data security using disk encryption. Note: The SAS 9260-4i RAID controller does not contain the JT7 connector, which supports ports 4–7. The SAS 9260DE-8i has the same connectors as the SAS 9260-8i. This subsection provides the board layout, and connector and jumper information for the RAID controller. Figure 3.
Table 3.1 SAS 9260-8i/SAS 9260DE-8i RAID Controller – Jumpers and Connectors Jumper Type Description JT1 2-pin connector JT2 Write-pending Indicator (dirty cache) LED connector Connects to an LED that indicates when the data in the cache has yet to be written to the storage devices. Used when the write-back feature is enabled. SAS Activity LED header 2-pin connector Connects to an LED that indicates drive activity.
Jumper Type Description JT10 2-pin connector LSI Test header Reserved for LSI use. JT11 JT12 IPMI-style SMBus (System Management)/I2C header 3-pin shielded header Provides enclosure management support. Individual Drive Fault LED 16-pin connector header for Eight Phys (07) Indicates drive faults. There is one LED per port. When lit, each LED indicates the corresponding drive has failed or is in the Unconfigured-Bad state.
Note: Figure 3.2 The SAS 9280DE-8e has the same connectors as the SAS 9280-8e. Card Layout for the SAS 9280-8e RAID Controller J6A2 J6A1 J6A3 J1A2 J1A1 J1A3 J1A4 Port 4-7 J6B1 J1B1 J6B2 Port 0-3 85040-00 Note: Connectors J6A1, J6A2, and J6A3 are behind the LSIiBBU07 when the iBBU is installed, but they are still accessible. Table 3.2 describes the jumpers and connectors on the SAS 9280-8e RAID controller. Table 3.
Table 3.2 SAS 9280-8e and SAS 9280DE-8e RAID Controllers – Connectors (Cont.) Connector Description Comments J1B1 Mini SAS 4x connector x4 SAS Ports 0–3 Connects the cables from the controller to SAS drives or SATA II drives, or a SAS expander. J6A1 Global Drive Fault LED header 2-pin connector Connects to an LED that indicates whether a drive is in a fault condition. J6A2 SAS Activity LED header 2-pin connector Connects to an LED that indicates drive activity.
3.2 MegaRAID SAS 6Gb/s RAID Controller Characteristics Table 3.3 shows the general characteristics for all MegaRAID 6Gb/s SAS RAID controllers. Table 3.3 MegaRAID 6Gb/s SAS RAID Controller Characteristics Flash ROM1 Serial EEPROM2 Yes Yes 1. 2. Data Transfer Rates SCSI Features Up to 6Gb/s per port for Plug and Play SAS and up to 3Gb/s per Scatter/Gather Activity LED port for SATA II SCSI Termination Active For boot code and firmware. For BIOS configuration storage.
The following hardware is compliant with CSA C22.2 No. 60950-1, UL 60950-1 First Edition-listed accessory, UL file number E257743: 3.3.
Table 3.4 RAID Controller Specifications (Cont.) Specification MegaRAID SAS 9260 and SAS 9280 RAID Controllers Array interface to the PCI Express Rev. 2.
Table 3.5 3.3.3 Array Performance Features (Cont.) Specification MegaRAID SAS 9260 and SAS 9280 RAID Controllers Maximum queue tags per drive As many as the drive can accept Stripe sizes 8 Kbytes, 16 Kbytes, 32 Kbytes, 64 Kbytes, 128 Kbytes, 256 Kbytes, 512 Kbytes, or 1 Mbyte Maximum number of concurrent commands 255 Fault Tolerance Table 3.6 lists the fault tolerance features for the MegaRAID 6Gb/s SAS RAID controllers. Table 3.
operating from the 3.3V rails and the 12V rail provide the necessary voltages. The following states determine the typical current consumption of the controller: • State 1: During a hard reset • State 2: During a drive stress test • State 3: While sitting idle at the DOS prompt The supply voltages are 12V ± 8 percent (from PCI edge connector only) and 3.3V ± 9 percent (from PCI edge connector only). Table 3.
• Temperature range: +10 ° C to +60 ° C without battery backup unit • Temperature range: +10 ° C to +44.8 ° C with iBBU battery backup The parameters for the non-operating (such as storage and transit) environment for these controllers are: 3.3.
3.3.5.1 Operating and Non-operating Conditions The operating (thermal and atmospheric) conditions for the SAS 9280-8e RAID controller are: • Relative humidity range is 5% to 90% noncondensing. • Airflow must be at least 200 linear feet per minute (LFPM) to avoid operating the LSISAS2108 processor above the maximum ambient temperature. • Temperature range: +10 ° C to +60 ° C without battery backup unit. • Temperature range: +10 ° C to +44.8 ° C with iBBU battery backup.
3-14 MegaRAID SAS RAID Controller Characteristics Copyright © 2009 by LSI Corporation. All rights reserved.
Appendix A Glossary of Terms and Abbreviations BIOS Acronym for Basic Input/Output System. Software that provides basic read/write capability. Usually kept as firmware (ROM-based). The system BIOS on the motherboard of a computer boots and controls the system. The BIOS on your host adapter acts as an extension of the system BIOS.
host The computer system in which a RAID controller is installed. It uses the RAID controller to transfer information to and from devices attached to the SCSI bus. host adapter board A circuit board or integrated circuit that provides a device connection to the computer system. hot spare An idle, powered on, standby drive that is ready for immediate use in case of drive failure. A hot spare does not contain any user data.
peripheral devices A piece of hardware (such as a video monitor, drive, printer, or CD-ROM) used with a computer and under the control of the computer. SCSI peripherals are controlled through a SAS MegaRAID SAS RAID controller (host adapter). PHY The interface required to transmit and receive data packets transferred across the serial bus. Each PHY can form one side of the physical link in a connection with a PHY on a different SATA device.
SAS device Any device that conforms to the SAS standard and is attached to the SAS bus by a SAS cable. This includes SAS RAID controllers (host adapters) and SAS peripherals. SATA Acronym for Serial Advanced Technology Attachment. A physical storage interface standard, SATA is a serial link that provides point-to-point connections between devices. The thinner serial cables allow for better airflow within the system and permit smaller chassis designs. SMP Acronym for Serial Management Protocol.
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