Re: [ADMIN] Least intrusive way to move primary data

2013-05-30 Thread Andrew W. Gibbs
Going with your first option, a master->slave replication, has the added benefit that you build the expertise for doing Continuous Point In Time Recovery, and after you do this storage system migration you can use that knowledge to put in a place a permanent standby server. Yes, it is a bit of work

Re: [ADMIN] purpose/use of pg_start_backup() pg_stop_backup()

2013-04-06 Thread Andrew W. Gibbs
These functions aren't actually doing anything overly magical. They don't cause you to end up with a "nice clean snapshot", at least not right away. They're mostly just helping with the housekeeping tasks of making sure that in the future you have kept around the WAL segments that will be necessar

[ADMIN] base backup requirements for PITR

2012-11-28 Thread Andrew W. Gibbs
Postgres Admin Wizards, I am trying to manage an 8.4 database whose ingest rate is sufficiently high that doing base backups on it causes it to fall unacceptably behind. To deal with this, I want to do WAL shipping to another server that is in warm standby mode, and then on that server perform th