On 29/12/2018 20:04, Chuck Martin wrote: > I thought I knew how to do this, but I apparently don't. I have to set > up a new server as a standby for a PG 11.1 server. The main server has a > lot more resources than the standby. What I want to do is run > pg_basebackup on the main server with the output going to the data > directory on the new server. But when I give this command: > > pg_basebackup -D "ssh root@10.0.1.16:/mnt/dbraid/data" -P -v -X s > > > it instead writes to my root drive which doesn't have the space, so it > fails and deletes the partial backup.
What you might be thinking of is the "old" method of doing base backups before pg_basebackup: Call pg_start_backup() and then do file system operations (tar, scp, whatever) to move the data files to where you want them. This is mostly obsolete. You should run pg_basebackup on the host where you want to set up your standby
Thanks. It’s been a while since I set up replication. Not to mention several Postgres versions. I’ve started pg_basebackup from the standby. It failed once due to an ssh error, but I reloaded sshd and started again. May take a while. It about 750gb.
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-- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
