Hi, the "Designing a cluster guide" http://wiki.ceph.com/wiki/Designing_a_cluster is pretty good but it still leaves some questions unanswered. It mentions for example "Fast CPU" for the mds system. What does fast mean? Just the speed of one core? Or is ceph designed to use multi core? Is multi core or more speed important? The Cluster Design Recommendations mentions to seperate all Daemons on dedicated machines. Is this also for the MON useful? As they're so leightweight why not running them on the OSDs? Regarding the OSDs is it fine to use an SSD Raid 1 for the journal and perhaps 22x SATA Disks in a Raid 10 for the FS or is this quite absurd and you should go for 22x SSD Disks in a Raid 6? Is it more useful the use a Raid 6 HW Controller or the btrfs raid? Use single socket Xeon for the OSDs or Dual Socket? Thanks and greets Stefan -- 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
