This cluster is specifically a near-line archive cluster, so storage density is more important than computational performance. Our primary production cluster (which actually does very little in the way of computation) is comprised of Dell R510's with 10 disks in JBOD and a two disk mirrored OS drive. 48 of those makes a nice speedy cluster.
-j On May 10, 2011, at 1:57 PM, Allen Wittenauer wrote: > > On May 9, 2011, at 11:46 PM, Jonathan Disher wrote: > >> I cant speak for Will, but I'm actually going against recommendations, my >> systems have three 20TB RAID 6 arrays, with two 10TB ext4 filesystems per >> array. >> >> The problems you will encounter keeping machines performing well after they >> get internally unbalanced following disk failures and replacements (and >> keeping machines online with non-standard configs, missing disks, etc) will >> drive you nuts. It drives me nuts. > > This sounds more like you just don't have enough nodes if you are that > concerned about single machine performance. :) >
