Hi, If performance is critical you'd want CephFS kernel clients to access your CephFS volumes/subvolumes. On the other hand, if you can't trust the clients in your cloud, then it's recommended that you set up a gateway (NFS-Ganesha server) for CephFS. NFS-Ganesha server uses libcephfs (userspace CephFS client) to access the backend Ceph FS subvolumes. CephFS kernel client has better performance than userspace CephFS client. I assume you want to use cephadm to set up the NFS service. If you plan to deploy the ingress (HAProxy+keepalived) service (https://docs.ceph.com/en/latest/cephadm/services/nfs/#high-availability-nfs) in front of it, keep in mind the NFS-Ganesha server will be seeing HA-proxy's IP address instead of the client IP address. So that may affect your client authorization model. I am aware of OpenStack deployments that do not use cephadm to deploy the NFS service. Instead, they setup their own active/passive NFS-Ganesha cluster gateways, using pacemaker+corosync for example, in front of CephFS. -Ramana On Thu, Nov 3, 2022 at 7:28 AM Eugen Block <eblock@xxxxxx> wrote: > > Hi, > > as always the answer is "it depends". Our company uses the ceph > cluster for all three protocols. We have an openstack cluster (rbd) > and use cephfs for work and home directories, and radosgw for k8s > backups. And we don't face any performance issues. I'd recommend to > give cephfs a try, no need to add a gateway inbetween as a potential > bottleneck, unless any policies require so. > > Regards, > Eugen > > Zitat von Mevludin Blazevic <mblazevic@xxxxxxxxxxxxxx>: > > > Hi all, > > > > i am planning to set up on my ceph cluster an RBD pool for virtual > > machines created on my Cloudstack environment. In parallel, a Ceph > > FS pool should be used as a secondary storage for VM snapshots, ISOs > > etc. Are there any performance issues when using both RBD and CephFS > > or is it better to use a separate NFS server? Moreover, when setting > > up Ceph NFS using ceph orch, only one host is "registered" from > > which i can mount the Ceph FS. Should I use more than one host (e.g > > high-availability nfs)? Any suggestions? > > > > Best, > > > > Mevludin > > > > _______________________________________________ > > 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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