[ceph-users] Re: advantage separate cluster network on single interface
We have a dev cluster to test things on ceph, that only have one 1gig nic network. Although it can work we noticed major impact with latencies when the cluster is balancing or under heavy load. On Tue, Jun 16, 2020 at 07:54 Olivier AUDRY wrote: > hello > > as far as I know there is no perf advantage to do this. Personnaly I'm > doing it in order to monitoring the two different bandwidth usage. > > oau > > Le mardi 16 juin 2020 à 16:42 +0200, Marcel Kuiper a écrit : > > Hi > > > > I wonder if there is any (theoretical) advantage running a separate > > backend network next to the public network (through vlan separation) > > over > > a single interface > > > > I googled a lot and while some blogs advice to do so, they do not > > give any > > argument that supports this statement > > > > Any insights on this is much appreciated > > > > Thanks > > > > Marcel > > > > ___ > > ceph-users mailing list -- ceph-users@ceph.io > > To unsubscribe send an email to ceph-users-le...@ceph.io > ___ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io > -- T: @Thaumion IG: Thaumion scot...@gmail.com ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
[ceph-users] Re: about replica size
I think you said it yourself, you have fewer copies. Which make you more prone for data loss. The other downside is recovery could be slower because they're would only be one other copy to get it from. You could look into erasure coding if you are trying to save storage cost but that takes higher CPU process. On Thu, Jul 9, 2020 at 19:12 Zhenshi Zhou wrote: > Hi, > > As we all know, the default replica setting of 'size' is 3 which means > there > are 3 copies of an object. What is the disadvantages if I set it to 2, > except > I get fewer copies? > > Thanks > ___ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io > -- T: @Thaumion IG: Thaumion scot...@gmail.com ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
