Thanks Alex White and Jay Leafey I do /sbin/swap -s under root and nothing is return. [root at node-36 ~]# /sbin/swapon -s [root at 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 at hp.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20051206/a730168f/attachment-0005.html>