Running a database over a file system structure is now a popular alternative to the traditional storage method using raw logical volumes. The performance issues of buffered I/O and concurrency have been solved with evolving file system technology. These same performance enhancements are now available on NFS with the latest level of AIX 5L™ V5.3 ML 3. Where previously database administrators would have shied away from involving NFS, it has now become a viable solution for database applications, as many of the original performance issues with this model have been solved1. Additionally, the evolution of the data center model has made NFS a popular retrieval mechanism and where there is demand there is innovation. Atomic testing of the latest file system technologies will demonstrate the NFS interaction and provide insight into the performance implications of their use.
1G. Colaco and D. Suggs. May 2004. "Database Performance with NAS: Optimizing Oracle® on NFS". Network Appliance http://www.netapp.com/library/tr/3322.pdf (PDF, 276KB, link resides outside of ibm.com)