Storage I/O path partitioning to eliminate I/O interference in consolidated servers

• Main Authors: MARAZAKIS MANOLIS, MAVRIDIS STELIOS, BILAS ANGELOS, CHASAPIS KONSTANTINOS, FOUNTOULAKIS MARKOS, PAPAGEORGIOU SPYRIDON, SFAKIANAKIS YANNIS
• Format: Patent
• Language: English
• Published: 23.02.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

A method for storage input/output (I/O) path configuration in a system that includes at least one storage device in network communication with at least one computer processor; the method comprising providing in the I/O path into at least: (a) a block-based kernel-level filesystem, (b) an I/O cache module controlling an I/O cache implemented on a first computer readable medium, (c) a journaling module, and (d) a storage cache module controlling a storage cache implemented on a second computer readable medium, the second computer readable medium having a lower read/write speed than the first computer readable medium. Furthermore, the steps of translating by the filesystem, based on computer executable instructions executed by the at least one processor, a file I/O request made by an application executed by the at least one computer processor into a block I/O request and fulfilling by the at least one processor the block I/O request from one of the I/O cache and the storage cache complete the I/O operation.