Lenovo ThinkServer RD240 MegaRAID SAS Software User Guide - Page 158
Viewing and Changing Battery Backup Unit Information, Make Global HSP, Make Dedicated HSP
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• Select Make Global HSP to make a global hot spare, available to all of the virtual drives. • Select Make Dedicated HSP to make a hot spare dedicated to a specific virtual drive. WebBIOS displays the global hot spare as Global and the dedicated hot spare as Ded. The icon for the dedicated hot spare displays under its associated virtual drive. The drive number, drive state, drive capacity, and drive manufacturer display. • Select Enclosure Affinity so if there are drive failures present on a split backplane configuration, then the hot spare will be used first on the backplane side that it resides in. • Select Prepare for Removal to prepare the drive for removal from the enclosure. The Prepare for Removal feature is different from spinning a drive down into powersave mode because it also involves flagging the drive as ready to remove. Therefore, if you choose to prepare a drive for removal, Ready to Remove displays in the device tree for that drive, instead of Powersave. 4.6.4 Viewing and Changing Battery Backup Unit Information If your SAS controller has a battery backup unit (BBU), you can view information about it and change some settings. To do this, follow these steps: 1. Click Controller Properties on the WebBIOS CU main menu screen. The first Controller Properties screen appears, as shown in Figure 4.52. 4-82 WebBIOS Configuration Utility
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