SAN booting is the general term for booting a Linux host from a storage system LUN instead of an internal hard disk. SAN booting uses a SAN-attached disk, such as a LUN configured on a storage controller, as a boot device for a host.
You can remove the hard drives from your servers and use the SAN for booting needs.
The hardware and operating costs are lowered.
Systems without the disks are less prone to failure.
If a server fails, systems without the disks can be swapped.
Site duplication is simplified.
For information about the configurations that are supported for SAN boot LUNs, see the Interoperability Matrix.