It was configured as /var/lib/pgbackrest, but we want to move it to /data/pbackrest to get it off the root partition.
It is being written to continually by archivers from several servers. Since access is over ssh, there's no server component that we can just stop for the duration.
The first thing I'd do is start rsyncing from /var/lib/pgbackrest to /data/pbackrest.
I don't, though, know enough about remote PgBackRest configuration to know whether PG on the db servers needs to be stopped for the moment when you reconfigure pgbr on the repo server.
