112 GroupWise 7 Interoperability Guidenovdocx (en) 11 July 2008If the node where GWTSA is running goes down, the backup needs to be rerun when the node is upagain, unless the nodes where the domain and post office volumes failed over are also configured toback them up. Using GWTSA, there is currently no way to restart a backup from a checkpointposition. By configuring redundant backup jobs on all nodes where domains and post offices couldfail over, you can ensure that domains and post offices are always backed up, regardless of the nodethey are mounted on when the backup takes place.To restore data in a clustering environment, you must run your backup/restore software on the nodewhere the location to restore is currently mounted.8.2 Using TSAFSGW in a NetWare 6.x ClusterIn a clustering environment, TSAFSGW must be installed and loaded on each node from which yourbackup software backs up any portion of your GroupWise system. To accommodate the variablelocations of data to back up from a clustered GroupWise system, the .ncf file for TSAFSGW oneach node should be edited to include a /home startup switch for every domain and post office onevery cluster-enabled volume that might ever be mounted on that node.If you are using TSAFSGW, the /vserver switch enables you to specify the name of a virtual serverin your NetWare cluster. Then you can use the /home switch to specify shared volumes and pathsrather than physical volumes and paths. For example:/vserver-clustername_volumename_SERVER/home-volumename:\domaindirectory/home-volumename:\postofficedirectoryFor example, if you have a domain named NewYork and a post office named Engineering, withlibraries named Design and Training, the switches for TSAFSGW would be:/vserver-CORPORATE_GROUPWISE_SERVER/home-gw:\gwsystem\newyork/home-gw:\gwsystem\engineeringYou can use this same configuration file on every node in the cluster. TSAFSGW can identify thelibraries based on information provided by the post office. Your backup software would then list thefollowing locations to back up, based on the previous example:GroupWise Cluster System[DOM] newyork[PO] engineering[DMS] lib0001[BLB] design_store[DMS] lib0002[BLB] training_storeFrom the list provided in your backup software, you can select GroupWise Cluster System to back upall the objects listed, or you can select individual objects for backup.Because TSAFSGW must be installed and loaded on all nodes in the cluster, it can connect to thevirtual server from all nodes. If the node where TSAFSGW is performing a backup goes down, thatnode is dismounted and the next node is mounted to the virtual server. However, becauseTSAFSGW creates its list of resources when it loads, it is not aware of the newly mounted node. Itmust be unloaded and reloaded in order to notify your backup software of the change. Your backup
