"filip filipov" <filip(dot)filipov(at)gmail(dot)com> writes:
> I'm using PostgreSQL 8.0.2. PG_DUMP can create the backup tar file.
> "pg_dump: [tar archiver] could not write to tar member (wrote 2279,
> attempted 7211)"
> the command I use is: "pg_dump -Ft -Upostgres -b databasename >
> /var/tmp/backup.tar"
Are you sure you have enough space in /var/tmp?
Another possibility is that the backup.tar file needs to exceed 4Gb but
your copy of pg_dump was compiled without large-file support.
regards, tom lane