On Fri, Jul 20, 2012 at 8:31 AM, Sławomir Skowron <szibis@xxxxxxxxx> wrote: > I know that this feature is disabled, are you planning to enable this > in near future ?? PG splitting/joining is the next major project for the OSD. It won't be backported to argonaut, but it will be in the next stable release, and will probably appear in our regular development release in 2-3 months. > I have many of drives, and my S3 instalation use only few of them in > one time, and i need to improve that. > > When i use it as rbd it use all of them. Radosgw normally stores most of the data for a single S3-level object in a single RADOS object, where as RBD stripes disk images across objects by default in 4MB chunks. If you have only a few S3 objects, you will see an uneven distribution. It will get more balanced as you upload more images. Also, if you use multi-part uploads, each part goes into a separate RADOS object, so that'll spread the load more evenly. Now, if your problem comes from the rgw pools having too few PGs to begin with, the distribution will be.. lumpy.. even with more objects. Here's another mailing list thread that talks about what you can do about that: http://article.gmane.org/gmane.comp.file-systems.ceph.devel/8069 -- 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
