Skip navigation

Even if you have identical hardware on your machines, there are certain locations that should remain unique in order for your system to function.

Here are some things you should not mirror, even if you have identical hardware.

  • /dev/
  • /etc/udev/
  • /etc/hostname
  • /etc/networking/interfaces
  • /proc/
  • /sys/

You probably do not want to mirror these, but that will vary.

  • /home/
  • /root/
  • /var/log/

Also, if you are running a linux high availability cluster, you will need to exclude these.

  •  /var/lib/heartbeat/hb_uuid
  • /etc/ha.d/*.pem

2 Comments

  1. If you are running a RedHat based distro, you need to exclude

    – /etc/sysconfig/

    Apparently, RedHat based distros generate most other cfg stuff from that directory, so you might not need to worry about /etc/udev/ /etc/hostname and /etc/networking/interfaces.

  2. That last note has been verified; you don’t need to worry about /etc/udev/ /etc/hostname and /etc/networking/interfaces on RedHat.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: