With the community, I will explain and discuss the use cases and the architectural considerations behind virtual LV storage pools, using MARS clusters for background data migration during operation. It has a high potential for cost savings as well as for improving the reliabilty of big storage clusters / grids.
Thomas Schoebel-Theuer has been working in operating systems since the 1980s, both in academia and in industry. He is an old-school Linux kernel hacker, inventor of the dentry cache for speeding up metadata access to filesystems. Currently he is working in industry on long-distance replication of petabytes of data, and on background migration in big sharding clusters / grids.