Distributed Storage and FPGAs

I have been super busy for the last few months getting a new house completed and moving into it. It takes an incredible amount of effort. Me being the DIY type also invested some energy in being hands-on with Carpentry, Masonry, Plumbing, Electricals, Gardening and sundry other stuff, to the consternation of my family and my utter satisfaction and utter exhaustion! Anyway that being settled mostly, I am getting back to catching up on digital stuff.

One of the very interesting developments that caught me, was this post on the Register: http://www.theregister.co.uk/2014/01/31/bluedbm_fpga_storage/. A storage controller on a FPGA linked together with other such controllers on a low-latency bus. How cool that is in terms of distributed storage. From the outside, we get a high-performance distributed storage pool. Obviously flash is also there in the picture. Thinking further on this one can also consider this system acting as a front-end cache for a remote WAN-linked storage archive.

I am wondering, if they can implement some storage controller functionality using a FPGA, can it also be done using CUDA. In that case, we can use something like GPUDirect for low-latency Infiniband access from the GPU. This would avoid having to deal with custom silicon. From yet another perspective, it might be possible to do something similar with the Pluribus Server-Switch built from off-the-shelf components.


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