LSI LOGIC MegaRAID SAS 9270-8i Storage Controller User Manual

1. Introduction and Overview

The LSI LOGIC MegaRAID SAS 9270-8i is an advanced eight-port storage controller designed for high-performance server environments. Built on dual-core 6Gb/s MegaRAID SAS technology, this controller offers a robust combination of intelligent performance, enterprise-grade RAID data protection, and proven interoperability with the latest PCI Express 3.0 server platforms. It is engineered to provide reliable and efficient data management for demanding applications.

Figure 1: Front view of the LSI LOGIC MegaRAID SAS 9270-8i Storage Controller, showing the heatsink and SAS connectors.

2. Key Features

The MegaRAID SAS 9270-8i controller incorporates several key features to enhance storage performance and reliability:

• Eight internal SATA+SAS ports: Provides extensive connectivity for multiple storage devices.
• Two mini-SAS SFF-8087 x4 connectors: Top-mounted for convenient cable management.
• 6 Gb/s throughput per port: Ensures high-speed data transfer rates.
• LSISAS2208 dual core ROC 800 MHz PowerPC: A powerful RAID-on-Chip processor for efficient data handling.
• MD2 Low Profile (6.6" X 2.536"): Compact form factor suitable for various server chassis.
• x8 PCI Express 3.0 Host Interface: Offers high bandwidth connectivity to the host system.
• 1 GB DDRIII cache (1333 MHz): Improves performance by caching frequently accessed data.
• Connect up to 128 SATA and/or SAS devices: Supports a large number of drives for scalable storage solutions.

Figure 2: Angled view of the LSI LOGIC MegaRAID SAS 9270-8i, highlighting the PCI Express interface and mounting bracket.

3. Setup and Installation

Proper installation is crucial for the optimal performance and stability of your MegaRAID SAS 9270-8i controller. Always ensure your system is powered off and unplugged before beginning installation.

1. System Preparation: Power down your server or workstation and disconnect all power cables. Open the computer case to access the motherboard.
2. Locate PCI Express Slot: Identify an available x8 PCI Express 3.0 slot on your motherboard. Ensure it is compatible with the controller's form factor (MD2 Low Profile).
3. Install Controller: Carefully insert the MegaRAID SAS 9270-8i controller into the chosen PCI Express slot. Apply even pressure until the card is fully seated. Secure the card with the retention bracket screw.
4. Connect Storage Devices: Connect your SATA or SAS hard drives/SSDs to the controller's two mini-SAS SFF-8087 x4 connectors using appropriate SAS/SATA breakout cables. The controller supports up to 128 devices.
5. Close System: Once all connections are secure, close the computer case and reconnect power cables.
6. Initial Boot and Driver Installation: Power on your system. During the boot process, you may need to enter the system's BIOS/UEFI to configure boot order or enable specific PCI settings. Install the necessary drivers for the LSI LOGIC MegaRAID SAS 9270-8i controller for your operating system (e.g., Linux, Unix, Windows Server). Drivers are typically available on the manufacturer's support website.
7. RAID Configuration: After driver installation, use the MegaRAID Storage Manager (MSM) utility or the controller's BIOS utility to configure your RAID arrays. Refer to the software documentation for detailed RAID setup instructions.

4. Operating Principles

The LSI LOGIC MegaRAID SAS 9270-8i operates as a hardware RAID controller, offloading RAID processing from the host CPU. This dedicated processing, handled by the LSISAS2208 dual-core ROC, ensures optimal performance and data integrity.

• RAID Levels: The controller supports various RAID levels (e.g., RAID 0, 1, 5, 6, 10, 50, 60) to provide different balances of performance, redundancy, and capacity. The specific RAID levels supported depend on the firmware version and configuration.
• Data Throughput: With 6 Gb/s throughput per port, the controller facilitates rapid data transfer between the host system and connected storage devices.
• Cache Memory: The integrated 1 GB DDRIII cache (1333 MHz) significantly improves read and write performance by temporarily storing data, reducing latency and increasing I/O operations per second (IOPS).
• Device Connectivity: The ability to connect up to 128 SATA and/or SAS devices allows for highly scalable storage solutions, from small server setups to large enterprise storage arrays.
• Operating System Compatibility: The controller is compatible with major server operating systems including Linux, Unix, and Windows Server, ensuring broad applicability.

5. Maintenance

Regular maintenance helps ensure the longevity and reliable operation of your MegaRAID SAS 9270-8i controller and the connected storage system.

• Firmware Updates: Periodically check the manufacturer's website for firmware updates. Firmware updates can provide performance enhancements, bug fixes, and support for new features or devices. Follow the manufacturer's instructions carefully when updating firmware.
• Driver Updates: Ensure your operating system drivers for the controller are up-to-date. Updated drivers can improve compatibility and performance.
• Physical Inspection: During system maintenance, visually inspect the controller for any signs of dust accumulation on the heatsink or connectors. Gently clean with compressed air if necessary. Ensure all cables are securely connected.
• Environmental Control: Operate the system in a well-ventilated environment with stable temperature and humidity to prevent overheating and component degradation.
• RAID Array Monitoring: Utilize the MegaRAID Storage Manager (MSM) or other monitoring tools to regularly check the health status of your RAID arrays and individual drives. Address any warnings or errors promptly.

6. Troubleshooting

This section provides general troubleshooting steps for common issues you might encounter with the MegaRAID SAS 9270-8i controller.

• Controller Not Detected:
  • Ensure the card is fully seated in the PCI Express slot.
  • Verify that the PCI Express slot is functional by testing with another known-good card if possible.
  • Check system BIOS/UEFI settings to ensure PCI Express slots are enabled.
• Drives Not Detected by Controller:
  • Verify all SAS/SATA cables are securely connected to both the controller and the drives.
  • Ensure drives are properly powered.
  • Check drive health individually if possible.
• Operating System Issues (e.g., Blue Screen, Kernel Panic):
  • Ensure correct and up-to-date drivers are installed for your operating system.
  • Check for any conflicts with other installed hardware or software.
  • Review system event logs for error messages related to the controller.
• RAID Array Degradation/Failure:
  • Use MegaRAID Storage Manager (MSM) to identify the failed drive.
  • Replace the failed drive with a new, compatible drive. The array should begin rebuilding automatically (for redundant RAID levels).
  • Do not remove multiple drives from a redundant array simultaneously unless instructed by support.
• Performance Issues:
  • Verify that the controller firmware and drivers are up-to-date.
  • Check for sufficient system resources (CPU, RAM).
  • Ensure proper cooling to prevent thermal throttling.
  • Review RAID array configuration for optimal performance settings.

For persistent issues, consult the detailed documentation provided by LSI Logic (now Broadcom) or contact their technical support.

7. Specifications

8. Warranty and Support

For specific warranty terms and conditions related to your LSI LOGIC MegaRAID SAS 9270-8i Storage Controller, please refer to the documentation included with your purchase or contact the original seller. Warranty coverage typically varies by region and reseller.

For technical support, driver downloads, firmware updates, and additional product documentation, please visit the official support website of Broadcom (who acquired LSI Logic's MegaRAID business). You can usually find support resources by searching for "Broadcom MegaRAID support" or navigating to their enterprise storage solutions section.

It is recommended to register your product with the manufacturer, if applicable, to receive important updates and support notifications.