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Intel® RAID Software User Guide for Full Featured and Entry Level RAID Controllers

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Intel® RAID Software User Guide for Full Featured and Entry Level RAID Controllers Intel® RAID Software User Guide for full featured and entry level RAID controllers Guidance for configuring different families of Intel® RAID Controllers. Rev 1.4 October 2020 Intel® Server Products and Solutions <Blank page> Intel® RAID Software User Guide Document Revision History Date Revision Changes July 2017 1.0 Initial release. Added missing bridge boards to the list of supported hardware. June 2018 1.1 Added more profiles and personalities for Tri-Mode controllers Corrected the drive Power Save feature Corrected missing controller on table 14. Jan 2020 1.2 Clarified support for the feature keys on the Tri-mode controllers Clarified RAID volumes where the BGI is run 1.3 Added Drive States in the glossary. Jan 2020 Clarified about JBOD drive definition and Copyback process. Added Profiles and Personalities section. 1.4 Added clarification about hot spare drives (Sec 1.3.1.1) Oct 2020 Appendix A. Name changed name from Operating modes to Profiles 3 Intel® RAID Software User Guide Disclaimers Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software, or service activation. Learn more at Intel.com, or from the OEM or retailer. You may not use or facilitate the use of this document in connection with any infringement or other legal analysis concerning Intel products described herein. You agree to grant Intel a non-exclusive, royalty-free license to any patent claim thereafter drafted which includes subject matter disclosed herein. No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document. The products described may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade. This document is classified as preliminary and contains information on products in the design phase of development. Do not finalize a design with this information. Revised product information will be published as available. Verify with your local sales office that you have the latest document revision before finalizing a design. Copies of documents which have an order number and are referenced in this document may be obtained by calling 1-800-548-4725 or by visiting www.intel.com/design/literature.htm. Intel, the Intel logo, and Xeon are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. *Other names and brands may be claimed as the property of others. Copyright © 2017 Intel Corporation. All rights reserved. 4 Intel® RAID Software User Guide Table of Contents 1 Overview ............................................................................................................................................................................................... 11 1.1 Supported Hardware .................................................................................................................................................... 11 1.2 Software ............................................................................................................................................................................. 12 1.2.1 Drivers ................................................................................................................................................................................. 12 1.2.2 Configuration Utilities .................................................................................................................................................. 12 1.3 RAID Terminology .......................................................................................................................................................... 12 1.3.1 Fault Tolerance ............................................................................................................................................................... 13 1.3.2 Enclosure Management ............................................................................................................................................... 14 1.3.3 Performance ..................................................................................................................................................................... 14 2 RAID Levels, Concepts, and Features ....................................................................................................................................... 16 2.1 Summary of RAID Levels ............................................................................................................................................. 16 2.2 Selecting a RAID Level.................................................................................................................................................. 16 2.2.1 RAID 0 - Data Striping................................................................................................................................................... 17 2.2.2 RAID 1 - Disk Mirroring/Disk Duplexing ................................................................................................................ 17 2.2.3 RAID 5 - Data Striping with Striped Parity ........................................................................................................... 18 2.2.4 RAID 6 - Distributed Parity and Disk Striping ..................................................................................................... 19 2.2.5 RAID IME (RAID 1E) ........................................................................................................................................................ 19 2.2.6 RAID 10 - Combination of RAID 1 and RAID 0 ................................................................................................... 20 2.2.7 RAID 50 - Combination of RAID 5 and RAID 0 ................................................................................................... 21 2.2.8 RAID 60 - Combination of RAID 6 and RAID 0 ................................................................................................... 22 2.3 RAID Configuration Strategies .................................................................................................................................. 23 2.3.1 Maximizing Fault Tolerance ....................................................................................................................................... 23 2.3.2 Maximizing Performance ............................................................................................................................................ 24 2.3.3 Maximizing Storage Capacity .................................................................................................................................... 25 2.3.4 Array Purpose .................................................................................................................................................................. 26 2.3.5 Configuration Planning ................................................................................................................................................ 26 2.4 RAID Features .................................................................................................................................................................. 26 2.4.1 RAID Availability Concept ........................................................................................................................................... 26 2.4.2 Spare Drives ..................................................................................................................................................................... 27 2.4.3 Rebuild ................................................................................................................................................................................ 27 2.4.4 Drive in Foreign State ................................................................................................................................................... 27 2.4.5 Copyback ........................................................................................................................................................................... 27 2.4.6 UEFI 2.0 Support ............................................................................................................................................................ 28 2.4.7 MegaRAID Fast Path ...................................................................................................................................................... 28 2.4.8 4K Sector Drive Support ............................................................................................................................................. 29 2.4.9 Larger than 2 TB Drive Support ............................................................................................................................... 30 2.4.10 Error Handling ................................................................................................................................................................. 30 2.4.11 Shield State ......................................................................................................................................................................
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