What does “traffic” mean? Reads? Writes will have to hit the net regardless of any machinations. > On Jun 29, 2020, at 7:31 PM, Harry G. Coin <hgcoin@xxxxxxxxx> wrote: > > I need exactly what ceph is for a whole lot of work, that work just > doesn't represent a large fraction of the total local traffic. Ceph is > the right choice. Plainly ceph has tremendous support for replication > within a chassis, among chassis and among racks. I just need > intra-chassis traffic to not hit the net much. Seems not such an > unreasonable thing given the intra-chassis crush rules and all. After > all.. ceph's name wasn't chosen for where it can't go.... > >>>> On 6/29/20 1:57 PM, Marc Roos wrote: >> I wonder if you should not have chosen a different product? Ceph is >> meant to distribute data across nodes, racks, data centers etc. For a >> nail use a hammer, for a screw use a screw driver. >> -----Original Message----- >> To: ceph-users@xxxxxxx >> Subject: *****SPAM***** layout help: need chassis local io >> to minimize net links >> Hi >> I have a few servers each with 6 or more disks, with a storage workload >> that's around 80% done entirely within each server. From a >> work-to-be-done perspective there's no need for 80% of the load to >> traverse network interfaces, the rest needs what ceph is all about. So >> I cooked up a set of crush maps and pools, one map/pool for each server >> and one map/pool for the whole. Skipping the long story, the >> performance remains network link speed bound and has got to change. >> "Chassis local" io is too slow. I even tried putting a mon within each >> server. I'd like to avoid having to revert to some other HA >> filesystem per server with ceph at the chassis layer if I can help >> it. >> Any notions that would allow 'chassis local' rbd traffic to avoid or >> mostly avoid leaving the box? >> Thanks! >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an >> email to ceph-users-leave@xxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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