HP Data Protector Software Cell Manager Failover Process (standby Cell Manager)

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Executive summary
This white paper provides information on how to configure and maintain an HP Data Protector client
in a Data Protector cell to act as a standby Cell Manager.
Solution description
Due to potential incompatibilities among hardware and/or backup software between multiple sites of
a company, it would be quite difficult to perform data recovery if a disaster where to occur.
The following scenario requires compatible hardware infrastructure at the sites where data recovery
using HP Data Protector is being performed.
The assumption is made that an HP Data Protector Cell Manger manages backup and recovery tasks
at two physically separated sites. The production Cell Manger is located at site(A) whereas the
designated standby Cell Manager is located at site(B).
Backup jobs have been configured to back up the Internal Database (IDB) and configuration files of
the production Cell Manager and replicate them to the standby Cell Manager at the site(B). In
addition, a second copy of the IDB is written to an LTO tape drive for increased data retention.
Backup jobs are running on a daily basis.
Recovery of the Cell Manager and restoration of selected data to nominated servers have been tested
using HP Data Protector 6.0 on Microsoft® Windows® 2003 Server operating system software and
HP-UX11.23 Itanium® (ia64) operating system software.
It is strongly recommended to thoroughly test the scripts and procedures described in this white paper
prior going into production with it. This recommendation also applies if the scripts and procedures are
used in conjunction with HP Data Protector versions higher than version 6.0.