Data Disk Spontaneously Remounts

Explanation

A temporary data storage disk using an ext3 file system may spontaneously dismount and remount as read-only under heavy load. This is due to a known configuration problem in Red Hat Enterprise Linux 4.

Workaround

1. Add the following line to /etc/sysctl.conf (the kernel sysctl configuration file):

   vm.min_free_kbytes = 4096

2. At the root command line prompt, enter:

   # echo 4096 > /proc/sys/vm/min_free_kbytes