Re: Disk usage in postgresql 8.1.4

On Aug 6, 2006, at 6:42 PM, Geoff Parker wrote:
> Hi,
> I've got a database with about 155GB of binary data, however when I
> run the unix utility df, it reports only 60GB of disk space is
> being used. I've extracted random samples of data from the
> database, and it all appears correct, so I presume it's not
> corrupt. Can anyone tell me whether there's some sort of disk
> compression happening with large objects?
>
> Has anyone else seen this behaviour?
>
> # df
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/mapper/VolGroup01-ATV_PGSQL
> 480678616 59285468 396976076 13% /var/lib/pgsql
>
> This is Postresql version 8.1.4 on a slightly modified version of
> RHEL 4 (2.6.17 kernel).

You sure you're not using tablespaces?
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461