Hi Tom, A stripe width of 4KB (the default) means the object is encoded 4KB at a time. It does not show in the file written to disk. Cheers On 19/06/2015 22:11, Deneau, Tom wrote: > I am trying to understand the use of "osd pool erasure code stripe width" > For example, I have a single-node system with a k=2,m=1 ec pool > and I write a single 40M object to this pool using rados bench. > But when I look on the disk, I still see only the 3 20M pieces for this object. > Where does the striping get used? > > -- Tom Deneau, AMD > > > Description: > Sets the desired size, in bytes, of an object stripe on every erasure coded pools. Every object if size S will be stored as N stripes and each stripe will be encoded/decoded individually. > Type: > Unsigned 32-bit Integer > Default: > 4096 > > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > -- Loïc Dachary, Artisan Logiciel Libre
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