postmaster -D PGDATA and postmaster.pid

Hi,

I am configuring a PG 8.1.9 on CentOS 5. I am seeing some anomalies and
would like you feedback.
I have defined a new PGDATA=/qmsvol/pg_8.1.9/data, ran initdb -D
/qmsvol/pg_8.1.9/data successfully and can start the engine with pg_ctl -D
$PGDATA.

I have also populated /etc/sysconfig/pgsql/postgresql which overrides PGDATA
and PGLOG to my values.

However if I try to start the engine with "/etc/init.d/postgresql start " or
service postgresql start" I see the following error message in my PGLOG (ie
/var/log/pgsql/pgstartup.log)

postmaster cannot access the server configuration file
"/qmsvol/pg_8.1.9/data/postgresql.conf": Permission denied

ls -ld /qmsvol /qmsvol/pg_8.1.9 /qmsvol/pg_8.1.9/data
/qmsvol/pg_8.1.9/data/postgresql.conf
drwxrwxrwx 4 root root 4096 Nov 26 10:39 /qmsvol
drwx------ 3 postgres postgres 4096 Nov 26 11:25 /qmsvol/pg_8.1.9
drwx------ 11 postgres postgres 4096 Nov 26 12:04 /qmsvol/pg_8.1.9/data
-rw------- 1 postgres postgres 13699 Nov 26 11:25
/qmsvol/pg_8.1.9/data/postgresql.conf

Any ideas ?

Thanks
medi