Lenovo ThinkServer RD330 MegaRAID SAS Software User Guide - Page 76
Accept, Manual Configuration
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Chapter 4: WebBIOS Configuration Utility | Creating a Storage Configuration MegaRAID SAS Software User Guide 4.5.3.3 Using Manual Configuration: RAID 5 Page 76 Figure 37: RAID 1 Configuration Preview 11. Check the information in the configuration preview. 12. If the virtual drive configuration is acceptable, click Accept to save the configuration. Otherwise, click Back to return to the previous screens and change the configuration. 13. If you accept the configuration, click Yes at the prompt to save the configuration. The WebBIOS main menu appears. RAID 5 uses drive striping at the block level and parity. In RAID 5, the parity information is written to all drives. It is best suited for networks that perform a lot of small input/output (I/O) transactions simultaneously. RAID 5 provides data redundancy, high read rates, and good performance in most environments. It also provides redundancy with lowest loss of capacity. RAID 5 provides high data throughput. RAID 5 is useful for transaction processing applications because each drive can read and write independently. If a drive fails, the RAID controller uses the parity drive to recreate all missing information. You can use RAID 5 for office automation and online customer service that require fault tolerance. In addition, RAID 5 is good for any application that has high read request rates but low write request rates. When you select Manual Configuration and click Next, the Drive Group Definition screen appears. You use this screen to select drives to create drive groups. 1. Hold while you select at least three ready drives in the Physical Drives panel on the left.