Optional software packages, known as plug-ins, are available to make additional applications highly available.
The following plug-ins are available for Linux FailSafe:
Logical volumes (the volume resource type) such as provided by LVM
Filesystems such as reiserfs and ext2fs (the filesystem resource type)
MAC addresses (the MAC_address resource type)
Linux FailSafe Samba
Linux FailSafe NFS
Note: Linux FailSafe NFS is not part of the core Linux FailSafe software, but it is documented with the base release.
If you want to create new highly available services, or change the functionality of the provided failover scripts and action scripts by writing new scripts, you will use the instructions in this guide. However, not all resources can be made highly available; see Section 1.4.