Hi, I am looking for information regarding rbd's --whole-object option According to the doc: --whole-object Specifies that the diff should be limited to the extents of a full object instead of showing intra-object deltas. When the object map feature is enabled on an image, limiting the diff to the object extents will dramatically improve performance since the differences can be computed by examining the in-memory object map instead of querying RADOS for each object within the image. Is there any drawback ? If I use this option when object-map is enabled, is this only benefical ? What does it do if this feature is disabled ? Why is `whole-object` an option, and not the default behavior ? Regards, _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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