Backup Compatibility Across Software Versions; Csn-Reset - Dell DX6000 Installation And Configuration Manual

2.6.1. Backup Compatibility Across Software Versions

During upgrade, the backup process will not be able to complete and may log errors as a result.
After upgrade, previous backup sets may be marked on the Backup and Restore page of the CSN
Admin Console as being compatible with a previous software version. These backups cannot be
restored with the current version but will remain available if the software is reverted to a previous
version. Please reference the csn-reset section for instructions on how to install different versions of
the CSN using the csn-reset functionality.

2.7. CSN-Reset

The csn-reset script allows an administrator to reset a server to a state in which a fresh software
version may be installed from scratch and the initial configuration re-run. This can be useful to
restart upgrades that are interrupted by network outages or to revert to a previous software version.
The script can be run using the following command:
/opt/caringo/csn/bin/csn-reset
It will prompt for confirmation prior to proceeding and will log its steps to both the screen and to the
system syslog (/var/log/messages). During the csn-reset process, configuration backups will not be
able to complete and may log errors as a result. csn-reset allows one option, '--remove-cr', which will
optionally remove the DX Content Router data stores for both Publisher and Replicator. By default,
these data stores are not removed. Existing log files are never removed so they remain available for
troubleshooting.
The csn-reset script is not meant as a general purpose uninstall script as it does not return
service and network configuration files to their original state. It will not leave the server in a state
usable for other purposes; if a server needs to be repurposed as a non-CSN a fresh OS install is
recommended.
Copyright © 2010 Caringo, Inc.
All rights reserved 11
Version 2.0
December 2010