On 5/4/18 06:41, Adrian Heath wrote: > The system is used 24/7. Can we run pg_basebackup while the master is > still receiving updates without worrying about physical file corruptions > in the generated archive file? Yes, as long as you follow the instructions about saving the WAL generated during the backup and replaying it on the newly created standby. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services