Hi Hean, I've never tried pNFS, but the problem is the same. If you want failover and hyper scaling, then use Gluster or Ceph. Why would you use PNFS which is used by almost nobody? People use NFS because:
1. it's primitive 2. it's easy to manage 3. it supports migrations 4. if planned well (cluster-wide) you can limit fail domain. 5. it is rock solid If deployed properly (i had my NFS 600+ days of uptime). If you want fault-tolerance, use Gluster, Ceph, or proprietary, don't reinvent the wheel. I don't use NFS because my goal is to limit the failure domain to a single host, so I use local storage. Every server is packed with SSD RAID or NVME RAID, for me offline migrations are just fine. A bunch of my users wants fault tolerance, so they use pretty tiny Gluster (1TB). You will never get great IOPS on any parallel, clustered FS or storage. Want best performance - use NFS or local, want failover use Gluster (shared mount point) or Ceph (natively supported). -- Ivan On Wed, Oct 14, 2020 at 11:59 PM Hean Seng <heans...@gmail.com> wrote: > HI > > Since the most of user using NFS for cloudstack, can I ask if cloudstack > NFS mount can support which version of NFS. > > I just a test and seems is v4. and there is no way to on 4.1 which > support PNFS etc . > > Anybody can advice on this ? > > Thanks > > > -- > Regards, > Hean Seng >
