http://www.rfc-editor.org/rfc/rfc8154.txt
RFC 8154: Parallel NFS (pNFS) Small Computer System Interface (SCSI) Layout, C. Hellwig2017-05-01T23:00:00-00:00The Parallel Network File System (pNFS) allows a separation between the metadata (onto a metadata server) and data (onto a storage device) for a file. The Small Computer System Interface (SCSI) layout type is defined in this document as an extension to pNFS to allow the use of SCSI-based block storage devices.