In response to Steeles <steeles@gmail.com>:
> new to postgresql. need to backup postgresql DB, which way is better to
> backup DB.
>
> from training, I learned that we can backup the whole PGdata and other
> directories to achieve backup goal, originally I was planned to schedule
> jobs to use pgdump to backup all DBs.
>
> so which way is better for backup or there is other way to backup PGDB.
Use pg_dump or pg_dumpall. If you're at the level that you have to ask
this question, then you'll have nothing but trouble getting reliable
backups by backing up directories.
Also, since you're new to PostgreSQL, I _HIGHLY_ recommend that you don't
assume that you're getting backups until you can demonstrate that you can
restore them.
--
Bill Moran
http://www.potentialtech.com
http://people.collaborativefusion.com/~wmoran/