Just a bump:) Is this the right list or should I be posting in devel? MW On Tue, Oct 7, 2014 at 5:51 PM, Marcus White <roastedseaweed.k@xxxxxxxxx> wrote: > Hello, > Some basic Ceph questions, would appreciate your help:) Sorry about > the number and detail in advance! > > a. Ceph RADOS is strongly consistent and different from usual object, > does that mean all metadata also, container and account etc is all > consistent and everything is updated in the path of the client > operation itself, for a single site? > > > b. If it is strongly consistent, is that the case across sites also? > How can it be performant across geo sites if that is the case? If its > choosing consistency over partitioning and availability...For object, > I read somewhere that it is now eventually consistent(local CP, > remotely AP) via DR. Gets a bit confusing with all the literature out > there. If it is DR, isnt that slightly different from the Swift case? > > c. For block, is it CP on a single site and then usual DR to another > site using snapshotting? > > d. For block, is it just a linux block device or is it SCSI? Is it a > custom device driver running within Linux which hooks into the block > layer? Trying to understand the layering diagram. > > e. Do the snapshot, compression features come from the underlying file system? > > f. What is the plan for deduplication? If that comes from the local > file system, how would it deduplicate across nodes to achieve the best > dedup ratio? > > > TIA, > MW _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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