Dell DX6004S DX Cluster Services Node Installation and Configuration Guide - Page 14

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