Hi Sage, Thanks for your answers > > In Ceph clusters disks are generally never powered down. It sounds like > Schwarz et al were studying a different type of storage system. In our > case, it's all about how quickly you discover a defect and repair around > it. Indeed, he was studying archival storage. I’m interested in both system types. > > We do let you change the scrub intervals on a per-pool basis as well (see > pool_opts in osd/osd_types.h), so you can adjust the policy based on both > the pool type (replicated vs erasure coded) or the importance of the data > it contains. > That setting is exactly what I was expecting ceph should have. Do you have any study done about choosing scrub intervals policy on replicated/erasured pools? Best, Vero-- 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