Correct, RBD will *always* stripe the image across multiple backing objects. The "striping" feature is really just used for the cases where the striping parameters are not the default of stripe-count = 1 and stripe-unit = object size. Internally that feature is known as striping v2 and colloquially it's referred to as "fancy striping" to distinguish it from the default striping behavior of RBD image. On Mon, Jan 29, 2018 at 8:39 AM, Konstantin Shalygin <k0ste@xxxxxxxx> wrote: > On 01/29/2018 08:33 PM, Jason Dillaman wrote: >> >> OK -- but that is the normal case of RBD w/o the need for fancy >> striping (i.e. no need for the special feature bit). The striping >> feature is only needed when using stripe counts != 1 and stripe units >> != object size. When you specify the "--stripe-unit" / >> "--stripe-count" via the CLI, we just assume you really really want >> the striping feature bit enabled regardless of whether or not it makes >> sense (it doesn't in your case above). > > > Thanks. > In other words striping enabled by default with stripe-count = 1 and > stripe-unit = object_size? -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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