RAID (redundant array of independent disks) configures disk drives into logical units called "volumes". There are several types of RAID configurations, which are identified by their numerical RAID levels (RAID 0, RAID 1, RAID 5, and so forth). Each supported RAID level requires a specified number of storage devices to complete the array.
The following table lists the disk requirements for each supported RAID level.
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There are two types of RAID, hardware and software RAID:
Hardware RAID - A host bus adapter (HBA) manages the array and presents the volumes to the OS as simple disks. Hardware RAID unburdens the OS, and is more robust than software RAID.
The Oracle Storage 12 Gb SAS PCIe RAID Host Bus Adapter, Internal 16-Port on your server supports hardware RAID. For instructions, see Configure RAID on Oracle Storage 12 Gb SAS PCIe RAID Host Bus Adapter, Internal 16-Port.
Software RAID - The OS manages the array, which is created and configured using an OS. In a typical use case, you boot an OS on one device to create a software RAID volume on a different device. For details, refer to the instructions in your operating system documentation.
Note the following conditions:
Your server might have other storage devices where you can install an OS as well. These might or might not support or require RAID. However, if you configure a RAID volume on these devices, you must do so before installing an OS. For instructions, refer to the documentation for the device, and the Oracle Server X7-8 Operating Systems Installation Guide.
The UEFI BIOS utility in your server does not display items in the boot list until after an OS is installed on the storage device and then the server is booted. This is unlike older BIOS utilities that display devices where you can install an OS.
To see devices where you can install an OS, you have to use an OS installation program.
Related Information
HBA Documentation Collection at: https://docs.oracle.com/cd/E87591_01/index.html