The latest Lustre just added HSM support: http://archive.hpcwire.com/hpcwire/2013-11-06/lustre_scores_business_class_upgrade_with_hsm.html Here is a slide deck with some high-level detail: https://jira.hpdd.intel.com/secure/attachment/13185/Lustre_HSM_Design.pdf Is anyone familiar with the interfaces and requirements of the file system itself? I don't know much about how these systems are implemented, but I would guess there are relatively lightweight requirements on the fs (ceph mds in our case) to keep track of file state (online or archived elsewhere). And some hooks to trigger migrations? If anyone is interested in this area, I would be happy to help figure out how to integrate things cleanly! sage -- 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
