On Tue, 25 Jan 2011, Gregory Farnum wrote: > On Tue, Jan 25, 2011 at 3:53 AM, Tatsuya Kawano <[email protected]> wrote: > > > > Hi, > > > > I have some questions about auto-striping feature in Ceph. > > > > - What is the default striping size? > The default is to stripe the file across 4MB objects, 4MB at a time. > You can also define your own striping strategy using cephfs. Make sure > that "stripe_unit" * "stripe_count" equals "object_size".
Actually, you just need to make sure that object_size is a multiple of stripe_unit. The striping strategy puts each stripe_unit on stripe_count consecutive objects until they reach a size of stripe_count; it then moves onto the next set of stripe_count objects. The default degenerate case has stripe_unit == object_size and stripe_count == 1. sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
