I have similar consideration when start exploring Cloudstack , but in reality Clustered Filesystem is not easy to maintain. You seems have choice of OCFS or GFS2 , gfs2 is hard to maintain and in redhat , ocfs recently only maintained in oracle linux. I believe you do not want to choose solution that is very propriety . Thus just SAN or ISCSI o is not really a direct solution here , except you want to encapsulate it in NFS and facing Cloudstack Storage.
It work good on CEPH and NFS , but performance wise, NFS is better . And all documentation and features you saw in Cloudstack , it work perfectly on NFS. If you choose CEPH, may be you have to compensate with some performance degradation, On Thu, Oct 28, 2021 at 12:44 AM Leandro Mendes <theflock...@gmail.com> wrote: > I've been using Ceph in prod for volumes for some time. Note that although > I had several cloudstack installations, this one runs on top of Cinder, > but it basic translates as libvirt and rados. > > It is totally stable and performance IMHO is enough for virtualized > services. > > IO might suffer some penalization due the data replication inside Ceph. > Elasticsearch for instance, the degradation would be a bit worse as there > is replication also in the application size, but IMHO, unless you need > extreme low latency it would be ok. > > > Best, > > Leandro. > > On Thu, Oct 21, 2021, 11:20 AM Brussk, Michael <michael.bru...@nttdata.com > > > wrote: > > > Hello community, > > > > today I need your experience and knowhow about clustered/shared > > filesystems based on SAN storage to be used with KVM. > > We need to consider about a clustered/shared filesystem based on SAN > > storage (no NFS or iSCSI), but do not have any knowhow or experience with > > this. > > Those I would like to ask if there any productive used environments out > > there based on SAN storage on KVM? > > If so, which clustered/shared filesystem you are using and how is your > > experience with that (stability, reliability, maintainability, > performance, > > useability,...)? > > Furthermore, if you had already to consider in the past between SAN > > storage or CEPH, I would also like to participate on your considerations > > and results :) > > > > Regards, > > Michael > > > -- Regards, Hean Seng
