Hi Laurenz Thanks for the reply,
If I am not mistaken, below is my understanding of your suggestion. Suppose that My mount point on the NFS server is say /nfs-mount/postgres/ and you are suggesting to have a data directory as say /nfs-mount/postgres/db or something like that ? and assign this value to the PGDATA ? If that is the case, then when and who should be creating the directory DB ? Please correct me if I am wrong about the understanding. Thanks, Amol On Mon, Jul 14, 2025 at 5:50 PM Laurenz Albe <laurenz.a...@cybertec.at> wrote: > On Mon, 2025-07-14 at 11:19 +0530, Amol Inamdar wrote: > > I'm currently running PostgreSQL version 16.6 inside a Docker container > > (base image: UBI 9), using Docker Compose. The PostgreSQL data directory > > is mounted from an NFS volume hosted on a z/OS NFS server. > > > > The environment has a few constraints: > > > > - It’s a highly secure and access-controlled setup. > > - Due to platform restrictions on z/OS, the mounted NFS directory cannot > > be owned by the PostgreSQL user (e.g., `postgres`) inside the > container. > > - As a result, PostgreSQL fails to start because of the directory > > ownership validation check. > > It is not a good idea to have a mount point be the data directory. > The proper solution is to create the data directory inside the > mount point. That way, the permissions of the data directory don't > have to be the same as the permissions of the mount point. > > Yours, > Laurenz Albe > -- -regards Amol
