On Tue, Nov 3, 2015 at 3:15 AM, Mike <mike.almateia@xxxxxxxxx> wrote: > Hello! > > In our project we planing build a petabayte cluster with Erasure pool. > Also we looking on Mellanox ConnectX-4 Lx EN Cards/ConnectX-4 EN Cards > for using its a offloading erasure code feature. > > Someone use this feature in test lab/prodaction? Nope. Ceph's erasure coding is very configurable (in terms of what kind of EC it's doing) but the offload features in NICs that we've seen aren't quite flexible enough for what Ceph is doing — it's an unusual use case and set of requirements where these offload cards are concerned. (We need to take an incoming stream, look at the raw stream, then erasure code it into an unknown set of pieces, and then send those pieces back out over the network to different addresses.) -Greg -- 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
