All- Over the past nine months I have been working to tune our hardware configuration to optimally balance CPU/RAM/disk/iops/network per node for our Cassandra workload. Thanks much to those here who have provided helpful advice.
I wanted to share back to the community some of the learnings we have come across including the hardware configuration we have been successful with (YMMV). This is still a work in progress naturally. I have written up a detailed blog post about this here: http://www.bitplumber.net/2010/10/a-cassandra-hardware-stack-dell-c1100s-ocz-vertex-2-ssds-with-sandforce-arista-7048s/ Here are the highlights: - Dell C1100 "cloud series" servers with 10x 2.5 inch drive bays - OCZ Technology Vertex 2 MLC SSD's with the Sandforce 1200 series controllers - Arista Networks 7048 1U Top of Rack switches running MLAG with LACP to the hosts Let me know if you have any questions! -Eric
