Hi Patrick, Thank you for you answer. That’s really helpful. I have another question. Do you have any testing report about the capability/performance of Crail on a cluster with disaggregated storage? I didn’t find it on the Crail official site.
> On 25 Jan 2018, at 23:40, Patrick Stuedi <[email protected]> wrote: > > Hi Dawn, > > Not a stupid question at all, a very relevant question. Storage > disaggregation is one of THE key use cases we have built Crail for. > The goal is to enable existing data processing platforms frameworks to > perform efficiently on remote storage (remote as seen from the compute > nodes). This is not straight forward because most frameworks like > hadoop, spark, etc.., have been designed explicitly to take advantage > of local storage. In Crail, due to the low-latency high-throughput > data access, storage disaggregation becomes feasible even for such > frameworks. > > In terms of configuration there is nothing in particular that needs to > be done, except that Crail permits you to put the storage nodes remote > to the compute nodes. Both the NVMf and DRAM/RDMA tier are suitable > for this. With regard to NVMf, there are storage enclosure that pack > plenty of flash into a single box and export an NVMf interface, these > boxes can also be used out-of-the box with the Crail NVMf tier. > > -Patrick > > On Thu, Jan 25, 2018 at 4:05 PM, Dawn Shepherd > <[email protected]> wrote: >> How about Crail's ability to support disaggregated storage? I will be >> grateful if someone can tell me the detail. Thank you.
