Sean --

Check the postgres manual for your version for details.

pg_dumpall -- used to backup an entire cluster (all databases); can be used to 
backup global info such as users / roles as well.
pg_dump -- used to backup a single database (no global info); like fumpall can 
be told to do schema only, data only, or both.

Both can output to a plain text SQL file that can be used to restore from the 
file, such as  psql -d mynewdb < dump.sql

Both can output in compressed formats (highly desirable in some circumstances) 
which are then restored using pg_restore.

The manual will provide more details; try dumping to a text file first and 
study what it has. Then move to the more compressed formats.

You can use these to migrate to a new version of postgres; in that case you 
want to use the most recent version of pg_dump / restore to do the work. The 
newer versions know how to read older databases and collect all the needed data.

HTH,

Greg Williamson

ps the postgres admin mailing list might be a good place to ask more pointed 
questions since it has a lot of DBAs looking at it; this forum probably has 
more GIS types who may well rely on a regular DBA to do this sort of 
(necessary) work.
 

----- Original Message -----
> From: Sean Christopher Conway <se...@backroadmapbooks.com>
> To: PostGIS Users Discussion <postgis-users@postgis.refractions.net>
> Cc: 
> Sent: Tuesday, June 12, 2012 10:10 AM
> Subject: [postgis-users] postgresql backup
> 
> 
> Hello, I am fairly new to POSTGIS and postgresql in general and am wondering 
> if 
> somebody can explain to me the best and most efficient way to backup and 
> restore 
> postgresql databases. Kind regards,
> 
> 
> Sean.
> _______________________________________________
> postgis-users mailing list
> postgis-users@postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
> 
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