Installing Perl; Configuring File System Mirroring - Novell BUSINESS CONTINUITY CLUSTERING 1.0 - ADMINISTRATION Manual

2.7 Installing Perl

Perl scripts are included with the Novell Business Continuity Clustering product and add
functionality that lets you manage your business continuity cluster using cluster-specific commands
either at the NetWare server console or in a DOS window on a Windows workstation.
The Perl script engine needed for Business Continuity Cluster software is included and installed
with NetWare 6.5 Support Pack 2. The Perl scripts needed for Business Continuity Clustering are
installed on cluster servers with the Business Continuity Cluster engine.
If you want to install the Perl script engine (version 5.8.0 or later is required) on a Windows
management workstation, you can download it for free from Perl Web site (http://
www.activestate.com). The Perl scripts needed for Business Continuity Clustering can also be
installed on your Windows workstation. To do this, copy the following files from the
sys:\perl\scripts directory on your NetWare server to a directory on you Windows workstation:
ClusterCli.pl
ClusterCliSnapinInterface.pm
ClusterCliUtils.pm
A snapins directory is located under the directory where the files listed above are located on the
NetWare server. You must also copy the snapins directory and its entire contents so that it appears as
a subdirectory under the directory on your Windows workstation where you copied the files listed
above.

2.8 Configuring File System Mirroring

Several different methods and scenarios for mirroring data between geographically separate sites
exist. Each method has its own strengths and weaknesses. After considering the different methods,
you will need to choose either host-based mirroring or SAN-based mirroring (also called array-
based mirroring) and whether you want the mirroring to be synchronous or asynchronous.
SAN-based synchronous mirroring is preferred and is provided by SAN hardware manufacturers.
Host-based synchronous mirroring functionality is included with the NSS file system (NSS
mirroring) that is part of NetWare 6.5.
Installation and Setup 25