HP StorageWorks Application Recovery Manager Administrator's Guide (T4395-96004, February 2008)
Appendix B
Limitations and Recommendations
Appendix B B-5
Regular Maintenance of the VSS Registry Using Microsoft’s
Registry Management Tool
Microsoft maintains a record of mounts in the registry. This results in
registry growth over time, which leads to Volume Shadow Copy import
problems. For details, see “Volume shadow copies cannot be imported due
to the low space in registry and consequently backup fails.” on page 85.
It is recommended to consider using Microsoft’s registry management
tool. You need to perform registry management tasks periodically to
prevent the registry from filling.
Concurrent Backup and Restore
Successful Application Recovery Manager backup or restore completion
is influenced by a number of factors imposed by non-Application
Recovery Manager components, including Microsoft Exchange and VSS.
One of the factors is timing, which in turn is impacted by environmental
conditions such as I/O loads, storage device activity and concurrent
Application Recovery Manager actions.
To inhibit potential issues, it is recommended that you balance
Application Recovery Manager activity across the available activity or
maintenance window. If you encounter issues, review and possibly reduce
concurrent Application Recovery Manager activities such as concurrent
backups or restores.