The integrated SAS/SATA controller with RAID capabilities supports RAID arrays.You can use the LSI Configuration Utility program to configure RAID 1 (IM), RAID1E (IME), and RAID 0 (IS) for a single pair of attached devices. If you install adifferent type of RAID adapter, follow the instructions in the documentation thatcomes with the adapter to view or change settings for attached devices.In addition, you can download an LSI command-line configuration program fromhttp://www.ibm.com/support/.When you are using the LSI Configuration Utility program to configure and managearrays, consider the following information:v The integrated SAS/SATA controller with RAID capabilities supports:– Integrated Mirroring (IM) with hot-spare support (also known as RAID 1)Use this option to create an integrated array of two disks plus an optional hotspare. All data on the primary disk can be migrated.– Integrated Mirroring Enhanced (IME) with hot-spare support (also known asRAID 1E)Use this option to create an integrated mirror enhanced array of three to eightdisks, including an optional hot spare.– Integrated Striping (IS) (also known as RAID 0)Use this option to create an integrated striping array of two to eight disks. Alldata on the array disk will be deleted.v Hard disk drive capacities affect how you create arrays. The drives in an arraycan have different capacities, but the RAID controller treats them as if they allhave the capacity of the smallest hard disk drive.v If you use an integrated SAS/SATA controller with RAID capabilities to configurea RAID 1 (mirrored) array after you have installed the operating system, you willlose access to any data or applications that were previously stored on thesecondary drive of the mirrored pair.v If you install a different type of RAID controller, see the documentation thatcomes with the controller for information about viewing and changing settings forattached devices.Starting the LSI Configuration Utility programTo start the LSI Configuration Utility program, complete the following steps:1. Turn on the server.2. When the prompt <<< Press to start LSI Configuration Utility>>> is displayed, press Ctrl+C. If you have set an administrator password, youare prompted to type the password.3. To select a controller (channel) from the list of adapters, use the arrow keys andpress Enter.4. To change the settings of the selected items, follow the instructions on thescreen. If you select Raid Properties, SAS Topology, or Advanced AdapterProperties additional screens are displayed.When you have finished changing settings, press Esc to exit from the program;select Save to save the settings that you have changed.Formatting a hard disk driveLow-level formatting removes all data from the hard disk. If there is data on the diskthat you want to save, back up the hard disk before you perform this procedure.Chapter 5. Configuration information and instructions 137
