On 1/9/20 2:07 PM, Daniel Aberger - Profihost AG wrote: > > Am 09.01.20 um 13:39 schrieb Janne Johansson: >> >> I'm currently trying to workout a concept for a ceph cluster which can >> be used as a target for backups which satisfies the following >> requirements: >> >> - approx. write speed of 40.000 IOP/s and 2500 Mbyte/s >> >> >> You might need to have a large (at least non-1) number of writers to get >> to that sum of operations, as opposed to trying to reach it with one >> single stream written from one single client. > > > We are aiming for about 100 writers.
So if I read it correctly the writes will be 64k each. That should be doable, but you probably want something like NVMe for DB+WAL. You might want to tune that larger writes also go into the WAL to speed up the ingress writes. But you mainly want more spindles then less. Wido > > Cheers > _______________________________________________ > ceph-users mailing list > email@example.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list firstname.lastname@example.org http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com