Hi, I wrote a Master's Thesis about Ceph and cold storage last year. One of the things I looked at was modifications to object placement. Among others, what would happen to balance (e.g objects / OSD) when all objects of a file end up on the same OSD. I also ran tests with a different hash algorithm (Linux dcache). I wrote an article on my website with the analysis, changes to the source and how I ran the tests: http://irq0.org/articles/ceph/object_name_hashing ~irq0 -- Marcel Lauhoff lauhoff@xxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
