Thanks guys. "free -m" showed : total used free shared buffers cached Mem: 8113 8023 90 0 98 6545 -/+ buffers/cache: 1380 6733 Swap: 8189 289 7899 So, the free column under buffers is 6733 - is this healthy? If I tried to run sysstat, I'll get a message : -bash: /etc/sysconfig/sysstat: Permission denied ./etc/rc.d/init.d/sysstat ./etc/cron.d-preCIS/sysstat ./etc/cron.d/sysstat ./etc/sysconfig/sysstat Thanks U -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list