On Jan 31, 2008 6:14 PM, Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx> wrote: > Also, with STGT being a pretty new design which has not undergone alot > of optimization, perhaps profiling both pieces of code against similar > tests would give us a better idea of where userspace bottlenecks reside. > Also, the overhead involved with traditional iSCSI for bulk IO from > kernel / userspace would also be a key concern for a much larger set of > users, as iSER and SRP on IB is a pretty small userbase and will > probably remain small for the near future. Two important trends in data center technology are server consolidation and storage consolidation. A.o. every web hosting company can profit from a fast storage solution. I wouldn't call this a small user base. Regarding iSER and SRP on IB: InfiniBand is today the most economic solution for a fast storage network. I do not know which technology will be the most popular for storage consolidation within a few years -- this can be SRP, iSER, IPoIB + SDP, FCoE (Fibre Channel over Ethernet) or maybe yet another technology. No matter which technology becomes the most popular for storage applications, there will be a need for high-performance storage software. References: * Michael Feldman, Battle of the Network Fabrics, HPCwire, December 2006, http://www.hpcwire.com/hpc/1145060.html * NetApp, Reducing Data Center Power Consumption Through Efficient Storage, February 2007, http://www.netapp.com/ftp/wp-reducing-datacenter-power-consumption.pdf Bart Van Assche. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
