On Wed, 31 Oct 2018, Adrian Klaver wrote:
Even with assurances I would back up that directory(assuming space available) before proceeding with a rebuild. Or do you have a recent dump of the cluster?
Adrian, That's my thinking, too. No, an explicit pg_dumpall is too old to be useful. I have daily uncremental backups made by dirvish but I'll copy the 451M data directory to a USB thumb drive for safe keeping. Regards, Rich