Samba is a suite of applications that speak the Server Message Block (SMB) protocol, allowing a Linux server to communicate in a heterogeneous network with servers and clients running Microsoft Windows products.

The Samba Recovery Kit enables LifeKeeper to protect Samba file and print shares on a Linux server. While Samba provides other services such as client authentication, Network Neighborhood browsing assistance and WINS name server resolution, this release of LifeKeeper does not protect these additional services. These other Samba services may coexist on a LifeKeeper server running as an unprotected instance of Samba as long as they adhere to the rules specified in the section Running Multiple Instances of Samba.

The Samba Recovery Kit provides a mechanism to recover protected Samba file and print shares from a failed primary server onto a backup server. LifeKeeper can detect failures either at the server level (via heartbeat) or resource level (by monitoring the Samba daemons) so that control of the Samba resources is transferred to a backup server.

Samba Resource Hierarchies

A typical Samba hierarchy will be comprised of a Samba resource, one or more file system resources, one or more IP resources, and possibly a print services resource. An example of a resource hierarchy protecting a Samba file share is shown below:

This Samba-smb.conf hierarchy protects one fileshare filesys7531 (which is dependent upon the partition device-nfs7457), and one IP address The following sections describes how the Samba resources are configured.


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