Thanks Alex White and Jay Leafey
I do /sbin/swap -s under root and nothing is return.
[root@node-36 ~]# /sbin/swapon -s
[root@node-36 ~]#

I also notice that /dev/swaps is empty and here the partition table
reported by parted cmd

Disk geometry for /dev/cciss/c0d0: 0.000-69459.609 megabytes
Disk label type: msdos
Minor    Start       End     Type      Filesystem  Flags
1          0.016    103.593  primary   ext3        boot
2        103.594  55398.750  primary   ext3
3      55398.750  63590.625  primary   linux-swap
4      63590.625  69459.609  extended              lba
5      63590.641  69459.609  logical   ext3

I am also surprised !

Thanks
Jean-Pierre Castello
E-MAIL : Jean-Pierre.Castello@hp.com