IBM Tivoli Storage Manager for UNIX and Linux Backup-Archive ...

1. Each schedule can be started from a different machine or LPAR.2. After running the schedules, any proxied client will be able to query andrestore all of the backed up data.Scheduling for backing up a HACMP clusterThis section shows some examples of how to back up a HACMP cluster.In the following examples, HACMP is configured for two AIX hosts, host_a andhost_b. Along with their own local data, the hosts are sharing disk storage whichhas two file spaces: /disk1 and /disk2.The CLUSTERNODE example shows how the clusternode option is used in acurrent HACMP environment.1. The administrator defines 3 nodes on the Tivoli Storage Manager server:host_a, host_b, cluster_group, using the following commands: (1) REGISTERNODE host_a mysecretpa5s, (2) REGISTER NODE host_b mysecretpa5s, (3)REGISTER NODE cluster_group mysecretpa5s.2. The administrator defines a dsm.opt file on host_a and host_b (note that theopt files are different on each host), using the following commands: (1)NODENAME host_a (option can be left as default), (2) DOMAIN /home /usr ...etc..3. The administrator defines a dsm.opt file located somewhere on one of thecluster disk groups, for example, /disk1/tsm/dsm.opt, using the followingcommands: (1) NODENAME cluster_group, (2) DOMAIN /disk1 /disk2, (3)CLUSTERNODE YES.4. The administrator defines a schedule on the Tivoli Storage Manager server,using the following command: DEFINE SCHEDULE STANDARD CLUSTER_BACKUP.5. The administrator defines associations for each of the 3 nodes, using thefollowing command: DEFINE ASSOC STANDARD CLUSTER_BACKUPhost_a,host_b,cluster_group. At any one time, there are three instances of theTivoli Storage Manager Backup-Archive client schedule running (with thescheduler for cluster_group being part of the cluster resources that willfailover whenever the cluster group disk resources failover. Thus, it would berunning on either host_a or host_b but not both simultaneously).6. All three node names contain data on the Tivoli Storage Manager server.The ASNODE example shows a generic solution which could be applied to UNIXcluster solutions to which we do not have support, for example: Veritas ClusterServer for Solaris.1. The administrator defines 3 nodes on the Tivoli Storage Manager server host_a,host_b, cluster_group:REGISTER NODE host_a mysecretpa5sREGISTER NODE host_b mysecretpa5sREGISTER NODE cluster_group mysecretpa5s2. The administrator defines a proxy node relationship between host_a andhost_b to hacmp_clusterGRANT PROXYNODE TARGET=cluster_group AGENT=host_a,host_b3. The administrator defines a dsm.opt file on host_a and host_b to handle thelocal file systems:NODENAME host_a (option can be left as default)DOMAIN /home /usr ... etc.NODENAMEDOMAINhost_b (option can be left as default)/home /usr ... etc.Chapter 4. Backing up your data 135