http://en.wikipedia.org/wiki/Software_defined_storage
Basically, with Ceph you've got a bunch of storage boxes providing raw disk. They're aggregated together via the software daemons they run rather than by a RAID controller or some hardware box that re-exports them, and the administrator can change the "shape" of that storage via simple commands — adding new boxes, removing old ones, or setting it up so that type foo data lives in those 20 machines and type bar lives in these other 10 machines even though it all used to live on all 30 machines is done via just a couple of commands. It's storage, defined by software. ;) -Greg On Saturday, December 15, 2012 at 5:36 AM, Itamar Landsman wrote: > Hi, > > There is some talk going around about software defined storage. > Nevertheless I could not find a concrete definition for it. > > Can someone comment about where a definition can be found and how can > ceph be a part of it? > > Thanks > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majord...@vger.kernel.org > (mailto:majord...@vger.kernel.org) > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
