Backup very large databases

Hi all,

I have the following problem - when I;m backuping my database (4 GB+ is
single database) the website (is used from a web site) going too slow,
because of the backup.

Database is 7.0, pg_dump is from 7.2.1

Any ideas how I can make the process for backup to be with low priority,
or can I use second readonly!?!?!?! Postgres server on same machine?

Im also are interested to join/make? New group for very large postgres
databases. Is there other people that running simillar large databases?


-----------------------------------------------------------
The Reboots are for hardware upgrades,
Found more here: http://www.nmmm.nu
Nikolay Mihaylov nmmm@nmmm.nu