Configuring RAID on the Server

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Redundant array of independent disks (RAID) implementations provide increased performance and data integrity across the available disk space in the server. By mirroring data across drives, most RAID levels can tolerate disk failures. Additionally, RAID configurations enable you to designate one or more hot spares. A hot spare is an unused drive on which the data on a failed drive can be automatically duplicated.

RAID configuration can be done before installing the operating system, and after the operating system is installed.

Before you install the operating system, you can use the BIOS utilities to configure RAID. This is a necessary step that must be completed before installing the operating system. For details, refer to your hardware installation guide.

Caution - These procedures erase all data on the disk, including the operating system.

After the operating system is installed, you can use the following tools to configure and modify RAID configurations. However this erases all the data on the affected drives, including the OS. If you change the RAID configuration on a boot drive, you must reinstall the OS.

Tool	Description	Supported RAID Levels	Documentation
Oracle Hardware Management Pack	See Oracle Hardware Management Pack. Command-line server management tool that can be used to configure drives (except boot drives) after the operating system has been installed.	Review the output of the `raidconfig list controller` subcommand.	Configure RAID (Oracle Hardware Management Pack)
MegaRAID Command Tools	Command-line RAID configuration application that must be installed on the server after the operating system has been installed.	RAID 0 RAID 1 RAID 5 RAID 6 RAID 00 RAID 10 RAID 50	MegaRAID SAS Software User Guide at: https://www.broadcom.com/support/oem/oracle/