The benchmark is the SPECsfs2008 CIFS file access benchmark. There is a similar benchmark for NFS which is much more popular in terms of supplier submissions, with BlueArc, HP, Isilon, NetApp and others reporting results. Annotated link http://www.diigo.com/bookmark/http%3A%2F%2Fwww.channelregister.co.uk%2F2010%2F01%2F27%2Femc_cifs_benchmark
The best benchmark for a piece of graphics hardware is your own actual application, not some marketing benchmark number claimed by some hardware vendor hyping their own hardware.
K. Tan, T. Lee, and E. Khor. Proceedings of the 2001 Congress on Evolutionary Computation, 2, page 979-986. Piscataway, NJ, USA, IEEE Computer Society, (2001)
R. Othayoth, and M. Poess. VLDB '06: Proceedings of the 32nd international conference on Very large data bases, page 1049--1058. VLDB Endowment, (2006)