Lenovo ThinkServer RD330 MegaRAID SAS Software User Guide - Page 90
Accept, Cancel, Manual Configuration
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Chapter 4: WebBIOS Configuration Utility | Creating a Storage Configuration MegaRAID SAS Software User Guide The Configuration Preview screen appears, as shown in Figure 47. 4.5.3.6 Using Manual Configuration: RAID 10 Page 90 Figure 47: RAID 00 Configuration Preview 22. Check the information in the configuration preview. 23. If the virtual drive configuration is acceptable, click Accept to save the configuration. Otherwise, click Cancel to end the operation and return to the WebBIOS main menu, or click Back to return to the previous screens and change the configuration. 24. If you accept the configuration, click Yes at the prompt to save the configuration. The WebBIOS main menu appears. RAID 10, a combination of RAID 1 and RAID 0, has mirrored drives. It breaks up data into smaller blocks, then stripes the blocks of data to each RAID 1 drive group. Each RAID 1 drive group then duplicates its data to its other drive. The size of each block is determined by the stripe size parameter, which is 64 KB. RAID 10 can sustain one drive failure in each drive group while maintaining data integrity. RAID 10 provides both high data transfer rates and complete data redundancy. It works best for data storage that must have 100 percent redundancy of RAID 1 (mirrored drive groups) and that also needs the enhanced I/O performance of RAID 0 (striped drive groups); it works well for medium-sized databases or any environment that requires a higher degree of fault tolerance and moderate to medium capacity. When you select Manual Configuration and click Next, the Drive Group Definition screen appears. You use the Drive Group Definition screen to select drives to create drive groups.