2Gb/s Intel® RAID Controllers User Guide Intel Order Number: H21668-001
DISCLAIMER IINFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT.
Preface This is the primary user guide for the 12Gb/s Intel® RAID Controllers. It contains installation instructions and specifications. Audience The people who benefit from this document are: • 12Gb/s Intel® RAID Controller users Organization This document includes the following chapters and glossary: • • Chapter 1 provides a general overview of the 12Gb/s Intel® RAID Controller. • • Chapter 3 describes the characteristics of the 12Gb/s Intel® RAID Controller.
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Table of Contents Preface ........................................................................................................................ iii Audience ............................................................................................................................... iii Organization ......................................................................................................................... iii Related Publication .............................................................
12Gb/s Intel® RAID Controller Characteristics .................................................................... 27 Technical Specifications ...................................................................................................... 28 RAID Controller Specifications .................................................................................... 28 Array Performance Features ....................................................................................... 29 Fault Tolerance ..........
List of Figures Figure 1. Example of an Intel SAS Direct-Connect Application................................................. 4 Figure 2. Example of an Intel SAS RAID Controller Configured with an LSISASx12 Expander 4 Figure 3. Example of the Intel® RAID Controller RS3DC080 Installation in a PCIe Slot......... 15 Figure 4. Internal SAS Cable for Connection to SAS Drives, SATA II Drives, or SATA III Drives 17 Figure 5. SATA III Connectors ......................................................................
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List of Tables Table 1. 12Gb/s Intel® RAID Controller Features ..................................................................... 6 Table 2. 12Gb/s Intel® RAID Controller Array Limitations ......................................................... 8 Table 3. 12Gb/s Intel® RAID Controller Hardware Specifications ...........................................12 Table 4. Jumpers and Connectors on the Intel® RAID Controller RS3WC080 .......................22 Table 5.
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1 12Gb/s Intel® RAID Controller Overview This document is the primary reference and user’s guide for the Intel® RAID Controllers based on the 12Gb/s SAS/SATA RAID-on-a-chip (ROC) devices. This document contains complete installation instructions and specifications for these RAID controllers. Overview The 12Gb/s Intel® RAID Controllers are high-performance intelligent PCIe-toSATA+SAS controllers with RAID control capability.
Gb/s Intel® RAID Controllers with Support for RAID Maintenance Free Back Units The Intel® RAID Controller RS3DC0x0 supports the RAID Maintenance Free Backup Unit that protects the integrity of the cached data on Intel® Integrated RAID Modules by offloading the data stored in the RAM cache to NAND flash during a power loss event. And it eliminates the need for lithium ion (Li-ion) batteries traditionally used to protect DRAM cache memory on RAID controllers.
Note: All of these RAID controllers provide an x8 PCIe 3.0 interface. 12Gb/s Intel® RAID Controller Detailed Descriptions The 12Gb/s Intel® RAID Controllers are described in detail in the following subsections. Intel® RAID Controller RS3WC080 The Intel® RAID Controller RS3WC080 is a PCIe 3.0 Low-Profile SAS Controller that controls eight internal SAS/SATA ports through two SFF-8643 mini-SAS HD-4i internal connectors.
The following figure 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 (PSBRAM), nonvolatile static random access memory (NVSRAM), and Flash ROM. Figure 1.
The SAS interface uses the proven SCSI command set to ensure reliable data transfers, while providing the connectivity and flexibility of point-to-point serial data transfers. The serial transmission of SCSI commands eliminates clock-skew challenges. The SAS interface provides improved performance, simplified cabling, smaller connectors, lower pin count, and lower power requirements when compared to parallel SCSI.
The 12Gb/s Intel® RAID Controllers use Fusion-MPT architecture for all major operating systems, thinner drivers, and better performance. Summary of 12Gb/s Intel® RAID Controller Characteristics This section summarizes the features and benefits offered by the 12Gb/s Intel® RAID Controllers. It contains information on SAS features, SATA features, PCI performance, integration, usability, and flexibility. The 12Gb/s Intel® RAID Controllers have the following features. Table 1.
Feature RS3WC080 RS3DC040 RS3DC080 User-specified rebuild rate (specifying the percentage of system resources to use from 0 percent to 100 percent) Yes Yes Yes Nonvolatile random access memory (NVRAM) of 32 KB for storing RAID system configuration information; the MegaRAID SAS firmware is stored in flash ROM for easy upgrade.
Table 2.
• They permit multiple initiators to address a single target (in a fail-over configuration) through an expander. PCI Express Performance The following list describes the PCIe performance features of the RAID controllers: • They provide a PCIe interface that does the following: — Supports a dedicated PCIe bus. — Supports x8 lane configuration. — Supports transfer rates of up to 8GT/s per lane. — Complies with the PCI Express specification, Revision 3.0, and the Serial ATA specification, version 3.0.
Drive Roaming Drive roaming occurs when the drives are changed to different ports on the same controller. When the drives are placed on different channels, the controller detects the RAID configuration from the configuration data on the drives. Configuration data is saved in both the NVRAM on the RAID controller and on the drives attached to the controller. This action maintains the integrity of the data on each drive, even if the drives have changed their physical device ID.
Note: When you migrate drives, move only the drives that make up the virtual drive (not all of the drives in a drive group), so that you do not see an NVRAM mismatch error (providing a configuration is on the destination controller). The NVRAM mismatch error appears only if you move all of the drives to the other controller. 2. Turn off power to the server and all drives, enclosures, and system components. Disconnect the power cords from the systems. 3.
Table 3.
2 12Gb/s Intel® RAID Controller Hardware Installation Requirements The following items are required to install a 12Gb/s Intel® RAID Controller: • • A 12Gb/s Intel® RAID Controller A host system with an available x8 PCIe 3.0 slot Note: These controllers also work in PCI Express first generation slots. The PCI Express software is backward compatible with previous revisions of the PCI bus and the PCI-X bus.
b. Make sure that the RAID controller is installed correctly. c. Close the cabinet of the host system. 6. Reconnect the power cords to the system. 7. Turn on the power to the system. Make sure that the power is turned on to any external drives before the power is turned on to the host computer. If the computer is powered up before these devices, the devices might not be recognized. Detailed Installation This section provides detailed instructions on how to install your 12Gb/s Intel® RAID Controller.
function. Refer to the guide for your motherboard for information about the PCIe slot. Figure 3. Example of the Intel® RAID Controller RS3DC080 Installation in a PCIe Slot Bracket Screw Press Here Press Here 3_01495-01 PCIe Slot Edge of Motherboard 5. Configure and install the SAS devices, the SATA devices, or both in the host computer case. Refer to the documentation for the devices for any pre-installation configuration requirements. 6. Connect the RAID controller to the devices.
System throughput problems can occur if the SAS cables are not the correct type. To minimize the potential for problems, use the following guidelines: — Use cables no longer than 10 meters (393.37 in.). (Use shorter cables, if possible.) — Use cables that meet the SAS specification. — Route the SAS cables carefully. 7. Turn on the power to the system. Reinstall the computer cover, and reconnect the AC power cords. Turn on power to the host computer.
Note: Use only straight SAS cables, not crossover SAS cables. The following figure shows the SAS cable that connects the internal connectors on a SAS RAID controller to SAS drives, SATA drives, or both. Figure 4.
Note: SAS backplane connectors accept SAS drives or SATA drives, but SATA backplane connectors cannot accept SAS drives. Figure 6. SAS Plugs, SATA 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 backplane connectors do not accept SAS drives.
You can connect other devices if the cable has more connectors. Figure 7.
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3 12Gb/s Intel® RAID Controller Characteristics 12Gb/s Intel® RAID Controller Family The 12Gb/s Intel® RAID Controllers are dual-PHY, SAS PCI Express RAID controllers and are used in a system with a PCI Express slot. PCI Express goes beyond the PCI specification in that it is intended as a unifying I/O architecture for various systems: desktops, workstations, mobile devices, servers, communications, and embedded devices.
Figure 8. Card Layout for the Intel® RAID Controller RS3WC080 J2 J4 J6 J3 J1B J1A J5 3_02070-00 EC1 The following table describes the jumpers and the connectors on the Intel® RAID Controller RS3WC080. Table 4.
Intel® RAID Controller RS3DC040 and RS3DC080 The Intel® RAID Controller RS3DC040 is a low-profile SAS+SATA RAID controller that controls four internal SAS/SATA ports through one SFF-8643 internal mini-SAS HD-4i connectors. The Intel® RAID Controller RS3DC080 is a low-profile SAS+SATA RAID controller that controls eight internal SAS/SATA ports through two SFF-8643 internal mini-SAS HD-4i connectors.
Figure 9. Card Layout for the Intel® RAID Controller RS3DC080 J1A3 J4B1 J3L1 J5A1 J1A2 J1A4 J6B7 J6B2 J1B1 J6B3 J6B6 J6B5 J5B1 J6B1 J6B4 J2B4 3_01679-01 The following table describes the jumpers and the connectors on the Intel® RAID Controller RS3DC080. Table 5. Jumpers and Connectors on the Intel® RAID Controller RS3DC080 Jumper/ Connector J1A2 Type 3-pin connector Description IPMI-style I2C connector for Ports 4 to 7.
Jumper/ Connector J1B1 Type 2x8-pin header Ports 0 to 3 Ports 4 to 7 Description Individual PHY and drive fault indication header. Connects to an LED that indicates whether a drive is in a fault condition. One LED exists per port. When lit, each LED indicates the corresponding drive has failed or is in the Unconfigured-Bad state. The LEDs function in a direct-attach configuration (no SAS expanders exist). Direct attach is defined as a maximum of one drive connected directly to each port.
Jumper/ Connector J5B1 Type 2-pin connector Description Test header. Reserved for use. J6B1 3-pin header Premium Feature Key header. Enables support for selected advanced features, such as Recovery, CacheCade*, FastPath, and SafeStore* disk encryption. J6B2 2-pin connector Default Serial boot ROM (SBR) header. Reserved for use. J6B3 2-pin connector Global hard disk drive (HDD) activity LED header. Connects to an LED that indicates activity on the drives connected to the controller.
Jumper/ Connector J6B6 Type 6-pin connector Description Complex programmable logic device (CPLD) header. Reserved for use. J6B7 2-pin connector Cache write pending header. Connector for an LED mounted on the system enclosure. The LED indicates that the data in the cache has yet to be written to the storage devices. 12Gb/s Intel® RAID Controller Characteristics The following table shows the general characteristics for all 12Gb/s Intel® RAID Controllers. Table 6.
Technical Specifications The design and implementation of the 12Gb/s Intel® RAID Controllers minimize electromagnetic emissions, susceptibility to radio frequency energy, and the effects of electrostatic discharge. The 12Gb/s Intel® RAID Controllers show the following marks and certifications: • • • • • • CE mark • • Japan VCCI C-Tick mark FCC Self-Certification logo Canadian Compliance Statement Korean MIC Taiwan BSMI CISPR Class B The following hardware is compliant with CSA C22.2 No.
Intel® RAID Controller RS3WC080, RS3DC040, and RS3DC080 Specification PCI Express bus data transfer rate • • Up to 8GT/s per lane x8 lane width Serial port 4-pin RS232-compatible connector (for manufacturing use only) SAS bus speed 12Gb/s SAS ports SAS connectors with four SAS ports each Cache configuration The Intel® RAID Controller RS3DC0x0 supports the following cache configuration: 1 GB – 72b arrangement (5) 128Mbx16, Double Data Rate III (DDR3) @ 1866 MHz with Intel® RAID Maintenance Free Ba
Table 9. Fault Tolerance Features Intel® RAID Controller RS3WC080, RS3DC040, and RS3DC080 Specification Support for SMARTA Yes Drive failure detection Automatic Drive rebuild using hot spares Automatic Parity generation and checking Yes A. The Self Monitoring Analysis and Reporting Technology (SMART) detects up to 70 percent of all predictable drive failures. In addition, SMART monitors the internal performance of all motors, heads, and drive electronics.
During trickle charging of the battery pack: Not applicable (no trickle charge for Li-ION). During fast charging of the battery pack: 230mA in +12V current. Operating and Nonoperating Conditions for the Intel® RAID Controller RS3WC080 For the Intel® RAID Controller RS3WC080, the operating (thermal and atmospheric) conditions are as follows: • • Relative humidity range is 5 percent to 90 percent non-condensing.
During trickle charging of the battery pack: Not applicable (no trickle charge for Li-ION). During fast charging of the battery pack: 230mA in +12V current. Operating and Nonoperating Conditions for the Intel® RAID Controller RS3DC0x0 For the Intel® RAID Controller RS3DC0x0, the operating (thermal and atmospheric) conditions are as follows: • • Relative humidity range is 20 percent to 80 percent non-condensing.
Glossary B 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.
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. A hot spare can be dedicated to a single redundant array or it can be part of the global hot-spare pool for all arrays managed by the controller. When a drive fails, the controller firmware automatically replaces and rebuilds the data from the failed drive to the hot spare.
RAID levels A set of techniques applied to drive groups to deliver higher data availability, performance characteristics, or both to host environments. Each virtual drive must have a RAID level assigned to it. S SAS Acronym for Serial Attached SCSI. A serial, point-to-point, enterprise-level device interface that leverages the proven SCSI protocol set.
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