Dynamic Placement Layouts in pNFS | SNIA

Abstract

The current NFS layout types are insufficient for next generation distributed file systems. Pseudorandom structure traversals and distributed hash tables are too complex to be captured by rectangular striping arrays, and distributed systems that use them thus have difficulty making full use of pNFS. We are developing a dynamic placement layout that includes executable code that can be evaluated to find the correct location for data. Dynamic placement layouts are better for vendors and users, as their support on clients will allow many distributed filesystem system to be exported through NFS, rather than having a layout type implemented for each strategy.

Learning Objectives

Learn about latest developments in NFSv4
Review distributed data placement strategies in NFSv4 context
Keep up with distributed file system standardization proposals