Intel® Integrated RAID Controller RS2SG244 Hardware User’s Guide Intel Order Number: E98815-002
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Preface This is the primary hardware guide for the Intel® RAID Controller RS2SG244, which can be used to manage SAS and SATA disk drives. It contains installation instructions and specifications. For details on configuring the storage adapters, and for an overview of the software drivers, see the Intel® RAID Software User’s Guide on the Resource CD. Audience This document assumes that you have some familiarity with RAID controllers/modules and related support devices.
iv Intel® RAID Controller RS2SG244 Hardware User’s Guide
Table of Contents Preface ........................................................................................................................ iii Audience ............................................................................................................................... iii Organization ......................................................................................................................... iii Related Publication .............................................................
Fault Tolerance ........................................................................................................... 24 Electrical Characteristics ............................................................................................. 24 Thermal and Atmospheric Characteristics .................................................................. 25 Safety Characteristics ................................................................................................. 25 Operating Certifications ..
List of Figures Figure 1. Installing the Intel® RAID Controller RS2SG244........................................................ 8 Figure 2. Connecting Cable between the RAID Controller and Drives/Backplane.................... 9 Figure 3. Card Layout.............................................................................................................. 11 Figure 4. Hardware Block Diagram ......................................................................................... 13 Figure 5.
viii Intel® RAID Controller RS2SG244 Hardware User’s Guide
List of Tables Table 1. Jumper Description ................................................................................................... 11 Table 2. SFF8087 Internal Connector with one SGPIO Connector Pin-out ............................17 Table 3. SFF8088 External Connector Pin-out .......................................................................18 Table 4. BBU Connector Pin-out .............................................................................................19 Table 5.
x Intel® RAID Controller RS2SG244 Hardware User’s Guide
1 Overview The Intel® RAID Controller RS2SG244 is a high port-count, high-performance intelligent PCI Express* 2.0 compliant SAS/SATA RAID controller that offers reliability, high performance, and fault-tolerant disk subsystem management. This is a RAID solution that meets the internal storage needs of workgroup, department, or enterprise systems to use with cost-effective SATA or high performance SAS media.
Intel® RAID Controller RS2SG244 The Intel® RAID Controller RS2SG244 is an intelligent PCI Express* 2.0 compliant interface RAID adapter with an integrated LSI* SAS2108 RAID-On-Chip chipset, providing both a SAS controller and RAID engine.
Protocol Support Each port on the SAS controllers supports SAS devices, SATA II devices, or both using SSP, SMP, STP, and SATA II as follows: • Serial SCSI Protocol (SSP) to enable communication with other SAS devices. • SATA II Protocol to enable communication with other SATA II devices. • Serial Management Protocol (SMP) to share topology management information with expanders. • Serial Tunneling Protocol (STP) support for SATA II through expander interfaces..
— No reboot necessary after expansion • Upgradeable Flash ROM interface. • Allows for staggered spin-up, hot-plug, and lower power consumption. • User specified rebuild rate (percent of system resources to use from 0-100%). Caution: Exceeding 50% rate may cause operating system errors due to waiting for controller access. • Background operating mode can be set for Rebuilds, Consistency Checks, Initialization (auto restarting Consistency Check on redundant volumes), Migration, OCE, and Patrol Read.
— Adaptive Read Ahead: Reads ahead and caches data only if doing sequential reads. — I/O setting. Determines whether read operations check the cache before reading from disks. ✧ Cache I/O: Checks cache first, only reads disk if data is not in the cache. ✧ Direct I/O: Reads data directly from disk. (not cache) • Redundancy through: — Configuration stored in non-volatile RAM and on the drives (COD). — Hot-swap support. — Optional battery backup for cache memory.
SAS/SATA Features • Eight independent PHYs internally, each supporting 6.0 Gbps SAS and SATA data transfers. • Provides twenty-four internal and four external ports through LSI* SAS2 x36 Expander chip. • Scalable interface that supports up to 240 physical devices and 64 logical devices via expanders. • Supports Serial SCSI Protocol (SSP) to enable communication with other SAS devices. • Supports Serial Management Protocol (SMP) to communicate topology management information.
2 Intel® RAID Controller RS2SG244 Hardware Installation Requirements • Intel® RAID Controller RS2SG244 , with the provided standoffs • A host system with an available x8 or x16 PCI-Express* slot • Resource CD, which contains drivers and documentation • SAS or SATA hard drives up to 6Gb/s speed • Provided SAS/SATA cables (for cable requirements, see step 4 in “Installing the RAID Controller”) Note: Intel Corporation strongly recommends using an uninterruptible power supply (UPS).
* ss re xp IE PC ot Sl AF003498 Figure 1. Installing the Intel® RAID Controller RS2SG244 4. Connect the provided internal and/or external cables into the adapter using the 4port combined end. Make sure the controller and cables are properly attached. — If using an external cable, plug the cable into the connector in the end bracket. — If using an internal cable, plug the cable into connector at the inside edge of the adapter.
AF003499 Figure 2. Connecting Cable between the RAID Controller and Drives/Backplane 5. Install the server system cover and connect the power cords. See your server system documentation for instructions.
Configuring the RAID Controller To configure the RAID Controller, follow these steps: 1. Turn on the system power and check to make sure that the SAS/SATA devices power up before or at the same time as the system. 2. During the boot, the following BIOS message appears to state the keys that you need to press to enter the Intel® RAID BIOS Console 2, such as: Press to run BIOS Console 2. This message times out after several seconds. If you miss it, you need to restart the system.
3 Intel® RAID Controller RS2SG244 Characteristics J4A5 J4A4 J5B3 J4A1 J4A3 J2B1 Ports 0-3 J1A2 J2B2 Ports 4-7 J3B1 Ports 8-11 J4B2 Ports 12-15 J4A2 J5A2 J5A1 Ports 16-19 J1B1 J1L1 on back J5B2 Ports 20-23 J1B3 J1B2 Ports 24-27 J1C1 J2D1 AF003500 Figure 3. Card Layout Table 1. Jumper Description s Jumper Type Description J1A2 Universal Asynchronous Receiver/ Transmitter (UART) for the Expander 4-pin connector. Reserved for factory use.
Jumper 12 Type Description J1B2 x4 SAS Ports 24-27 external connector SFF-8088 x4 external mini SAS connector Connects the controller by cable to a SAS/ SATA backplane or an expander. J1B3 Premium Features Hardware Key header 2-pin header. Enables support for selected premium features, which include Snapshot, Super Sized Cache, FastPath, and Full Disk Encryption. J1C1 IPMI-style I2C connector 3-pin connector.
Jumper Type Description J5A1 x4 SAS Ports 16-19 internal connector SFF-8087 x4 internal mini SAS connector Connects the controller by cable to SAS/SATA drives. J5A2 Write pending LED header 2-pin 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. J5B2 x4 SAS Ports 20-23 internal connector SFF-8087 x4 internal mini SAS connector Connects the controller by cable to SAS/SATA drives.
Major Components LSI* SAS2108 ROC The LSI* SAS2108 RAID-On-Chip (ROC) is an integrated SAS and I/O controller with an embedded Power PC* 440 core running at 800 MHz. For more information, see http://www.lsi.com/. The LSI* SAS2108 ROC provides the following functions: • • • • x8 PCI Express* bus operating at 6.
SDRAM (Cache) The Intel® RAID Controller RS2SG244 includes 512 MB of integrated DDR2 800 MHz ECC SDRAM memory. This DIMM is connected directly to the memory controller interface bus of the ROC and serves as storage for the executable code transferred from the flash. It also serves as cache during RAID transactions. Cache mode selection takes immediate effect while the server is online and is available on a per virtual drive basis.
The drive failure tones repeat until the problem is corrected, or until the alarm is silenced or disabled. The alarm can be silenced or disabled on the controller’s properties page in the BIOS Console or by using the failed drive options pane in the Intel® RAID Web Console 2. Silencing the alarm is temporary. If the cause of failure still exists or if an additional failure is detected, then the alarm sounds again when the system is rebooted. Disabling the alarm is persistent across errors and reboots.
SAS/SATA Connector Pin-out Signal names are with respect to the host; the device connected to the host reverses the signal names. Transmit pins connect to receive pins on the other device. The SAS/SATA connector is keyed at pin 1. These pin-outs for the serial ATA connector are not compatible with the legacy PATA connector. Table 2.
Controller Connector Pin-out Backplane Connector Pin-out Port SFF-8087 Pin # Pin Definition Pin # Pin Definition A12 GND 7 GND A13 RX2+ 6 TX+ A14 RX2- 5 TX- B12 GND 4 GND B13 TX2+ 2 RX+ B14 TX2- 3 RX- B15 GND 1 GND A15 GND 7 GND A16 RX3+ 6 TX+ A17 RX3- 5 TX- A18 GND 4 GND B16 TX3+ 2 RX+ B17 TX3- 3 RX- B18 GND 1 GND Port 2 Port 3 Figure 7. SFF8087 to Four-port Internal Cable with one SGPIO Connector Table 3.
Signal Pin Signal Pin GND A4 GND B4 RX 1+ A5 TX 1+ B5 RX 1- A6 TX 1- B6 GND A7 GND B7 RX 2+ A8 RX 2+ B8 RX 2- A9 RX 2- B9 GND A10 GND B10 RX 3+ A11 RX 3+ B11 RX 3- A12 RX 3- B12 GND A13 GND B13 This cable is not included. Figure 8. SFF8088 External Connector Cable BBU Connector Pin-out Table 4. BBU Connector Pin-out Pin # Name Description 1 P12V 12V Power 2 GND Ground 3 BATT_PRSNT Battery Present 4 GND Ground 5 P1V8 1.
Pin # Name Description 9 VBB_DDR_MEM DDR/DDRII Power 10 GND Ground 11 P3V3_STBY 3.3V auxiliary power 12 GND Ground 13 SCL I2C Clock 14 GND Ground 15 SDA I2C Data 16 PFAIL_L Power Fail 17 GND Ground 18 BBE Battery Backup Enabled 19 BBSTROBE Battery Backup Strobe 20 BBSTATUS Battery Backup Status I2C Connector Pin-Out Table 5.
Table 6. LED Headers Pin-out HDD Activity Header (JT4A1) Pin # Name Description HDD Fault Header (JT4A2) Name Description Write Pending Header (JT5A1) Name Description 1 D_ACTIVE_P 330? to U P3V3_DUAL GFAULT_PU 330? to P3V3_DUAL DIRTY_PU 330? to P3V3_DUAL 2 D_ACTIVE_ N GFAULT Connected to Drain of Q4B1 DIRTY Connected to Drain of Q2L1 Connected to Drain of Q3L1 Figure 9.
Serial UART Header Table 7. UART Connector Pin-out Pin # Name Description 1 UART0_TX UART TX SIGNAL (3.3V Signaling) 2 GND Ground 3 UART0_RX UART RX SIGNAL (3.3V Signaling) 4 P3V3_DUAL +3.3Vdc Power 1 Figure 10. UART Connector Technical Specifications Table 8. Technical Specifications Intel® RAID Controller RS2SG244 Specification RAID-on-Chip (ROC ) LSISAS2108 Integrated ROC, 800 MHz Operating voltage +3.3 V, +12 V Card size Full Height, extended half-length (6.6" x 4.
Intel® RAID Controller RS2SG244 Specification • Cabling • Redundant configuration Small, thin cables that do not restrict airflow Shared connectors for multiple drives 32 KB NVRAM and config-on-disk (COD) • • Enclosure management Enclosure support SGPIO In-band and out-of-band SES Assumes one SEP per enclosure Array Performance Features Table 9. Array Performance Features Intel® RAID Controller RS2SG244 Specification Host data transfer rate Upto 5.
Intel® RAID Controller RS2SG244 Specification • • • • • • Cache options Write-back or Write-through Read Ahead Adaptive Read Ahead Non Read Ahead Cache I/O or Direct I/O Disk Cache Fault Tolerance Table 10. Fault Tolerance Features Intel® RAID Controller RS2SG244 Specification Self Monitoring Analysis and Reporting Technology (SMART) support • • Detects up to 70% of predictable disk drive failures Monitors the internal performance of all motors, heads, and drive electronics.
• State 3: During a RAID 5 stress test • State 4: During a drive stress test while the BBU is under fast charging The supply voltages are 12V ± 8 percent (from PCI edge connector only) and 3.3V ± 9 percent (from PCI edge connector only). Below table lists the power supply for the controller for each of the three states at the different voltages. Table 11. Power Supply for the Controller PCI Edge Connector State 1 State 2 State 3 State 4 3.3V supply 1.339A 1.174A 1.225A 1.356A +12V supply 1.
Supported Device Technology The various device technologies supported by the Intel® RAID Controller RS2SG244 is described in the subsections that follow. Support for Hard Disk Drive Devices The Intel® RAID Controller RS2SG244 integrates twenty-four internal and four external high-performance SAS/SATA II ports that support SAS and enterprise-class SATA hard drives.
creating a virtual drive from that array that includes a functional RAID level. To create a virtual drive and present it to the host operating system, the RAID firmware typically follows these steps: 1. One or more physical drives are selected and associated as an array. 2. One or more arrays are associated and given a RAID level. This process creates a virtual drive and provides an option to initialize the virtual drive. 3. The RAID firmware presents the virtual drive to the operating system.
RAID Virtual Drive Status Table 13. RAID Virtual Drive Status Drive State Code Description Optimal Optimal The drive operating system is good. All configured drives are online. Degraded Degraded The drive operating condition is not optimal because one of the configured drives has failed or is offline. Offline Offline The drive is not available to the operating system and is unusable.
Appendix A: Drive Roaming and Drive Migration Install Drive Roaming Drive roaming occurs when the hard drives are changed to different ports on the same controller. When the drives are placed on different ports, the controller detects the RAID configuration from the configuration data on the drives. Note: If you move a drive that is currently being rebuilt, the rebuild operation will restart, not resume. To use drive roaming, follow these steps: 1.
Drive Migration Drive migration moves a configured set of hard drives from one controller to another. The drives must remain on the same port and be reinstalled in the same order as in the original configuration. The controller to which you migrate the drives cannot have an existing configuration. Note: Only complete configurations can be migrated; individual virtual disks cannot be migrated. Drive roaming and drive migration cannot be supported at the same time. To migrate drives, follow these steps: 1.
Appendix B: Installation/Assembly Safety Instructions As you use your computer system, observe these safety guidelines: • Do not operate your computer system with any cover(s) (such as computer covers, bezels, filler brackets, and front-panel inserts) removed. • To help avoid damaging your computer, be sure the voltage selection switch on the power supply is set to match the alternating current (AC) power available at your location.
Additional safety guidelines: • When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some cables have a connector with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, make sure both connectors are correctly oriented and aligned.
English Read all caution and safety statements in this document before performing any of the instructions. See also Intel® Server Boards and Server Chassis Safety Information on the Resource CD and/or at http://support.intel.com/support/motherboards/server/sb/cs-010770.htm. The power button on the system does not turn off system AC power. To remove AC power from the system, you must unplug each AC power cord from the wall outlet or power supply.
A microprocessor and heat sink may be hot if the system has been running. Also, there may be sharp pins and edges on some board and chassis parts. Contact should be made with care. Consider wearing protective gloves. Deutsch Lesen Sie zunächst sämtliche Warn- und Sicherheitshinweise in diesem Dokument, bevor Sie eine der Anweisungen ausführen. Beachten Sie hierzu auch die Sicherheitshinweise zu Intel-Serverplatinen und -Servergehäusen auf der Ressourcen-CD oder unter http://support.intel.
SICHERHEITSMASSNAHMEN: Immer wenn Sie die Gehäuseabdeckung abnehmen um an das Systeminnere zu gelangen, sollten Sie folgende Schritte beachten: 1. Schalten Sie alle an Ihr System angeschlossenen Peripheriegeräte aus. 2. Schalten Sie das System mit dem Hauptschalter aus. 3. Ziehen Sie den Stromanschlußstecker Ihres Systems aus der Steckdose. 4. Auf der Rückseite des Systems beschriften und ziehen Sie alle Anschlußkabel von den I/O Anschlüssen oder Ports ab. 5.
Notez que le commutateur CC de mise sous tension /hors tension du panneau avant n'éteint pas l'alimentation CA du système. Pour mettre le système hors tension, vous devez débrancher chaque câble d'alimentation de sa prise. C'est le câble d'alimentation qui est considéré comme le moyen de se déconnecter du CA. La prise à laquelle le système est branché doit se situer à proximité de l'équipement et être facilement accessible.
Le microprocesseur et le dissipateur de chaleur peuvent être chauds si le système a été sous tension. Faites également attention aux broches aiguës des cartes et aux bords tranchants du capot. Nous vous recommandons l'usage de gants de protection. Español Lea todas las declaraciones de seguridad y precaucion de este documento antes de realizar cualquiera de las instrucciones. Vea Intel® Server Boards and Server Chassis Safety Information en el CD Resource y/o en http://support.intel.
Para obtener un enfriamiento y un flujo de aire adecuados, reinstale siempre las tapas del chasis antes de poner en marcha el sistema. Si pone en funcionamiento el sistema sin las tapas bien colocadas puede dañar los componentes del sistema. Para instalar las tapas: 1. Asegúrese primero de no haber dejado herramientas o componentes sueltos dentro del sistema. 2. Compruebe que los cables, las placas adicionales y otros componentes se hayan instalado correctamente. 3.
PASSI DI SICUREZZA: Qualora si rimuovano le coperture del telaio per accedere all'interno del sistema, seguire i seguenti passi: 1. Spegnere tutti i dispositivi periferici collegati al sistema. 2. Spegnere il sistema, usando il pulsante spento/acceso dell'interruttore del sistema. 3. Togliere tutte le spine dei cavi del sistema dalle prese elettriche. 4. Identificare e sconnettere tutti i cavi attaccati ai collegamenti I/O od alle prese installate sul retro del sistema. 5.
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Appendix C: Regulatory and Certification Information Product Safety and EMC Compliance This Intel® RAID Controller has been evaluated for regulatory compliance as an Intel end system, and is included as part of the end system certification. For information on end system certification, refer to the product regulatory certification for the end system level product.
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