PowerProtect Data Manager 19.17 Oracle RMAN User Guide

Prerequisites for Oracle RAC multistream parallel backups

Ensure that you meet the following requirements for the multistream parallel backups in an Oracle RAC environment:

• The Oracle RMAN agent is installed on all the nodes that are used for the parallel backups.
• If the NAMES.DIRECTORY_PATH variable is set in $ORACLE_HOME/network/admin/sqlnet.ora, then EZCONNECT is specified as one of the variable values. For example:

  cat /u02/app/oracle/product/19.0.0/dbhome_1/network/admin/sqlnet.ora
  
  NAMES.DIRECTORY_PATH = (TNSNAMES, EZCONNECT)
  WALLET_LOCATION =
     (SOURCE =
       (METHOD = FILE)
       (METHOD_DATA =
         (DIRECTORY = /u02/app/oracle/product/19.0.0/dbhome_1/wallet)
       )
     )
  SQLNET.WALLET_OVERRIDE = TRUE
  SSL_CLIENT_AUTHENTICATION = FALSE
  SSL_VERSION = 0

• Database authentication or Oracle wallet authentication (not operating system authentication) is enabled.
• If Oracle wallet authentication is enabled, each RAC cluster node has the created wallet that contains the entries of all the RAC nodes in the following format:

  <hostname_of_node_1>:<port_1>/<service_name_1>
  <hostname_of_node_2>:<port_2>/<service_name_2>
       :
  <hostname_of_node_n>:<port_n>/<service_name_n>

Enabling the Oracle RAC multistream parallel backups

In the PowerProtect Data Manager UI, perform the following steps to set the cluster backup nodes that are used for the parallel multistream backups of the selected asset. During the Application Direct centralized backups or Oracle Incremental Merge centralized or self-service backups, the backup streams are allocated according to the streams setting specified in the following procedure.

1. Select Infrastructure > Assets, and then click the Oracle tab.
2. For each node that you want to set as a cluster backup node, ensure that the required database or wallet credentials are set for each associated asset:
   1. Select the associated asset with the Host Type RAC.
   2. Select More Actions > Set Credential.
   3. In the Set Credential dialog, specify the database credentials for the Database User or Wallet.
   4. Click Save.
3. For each node that you want to set as a cluster backup node, complete the following steps:
   1. Select the associated asset with the Host Type RAC.
   2. Select More Actions > Set Cluster Backup Nodes.
   3. In the Set Cluster Backup Nodes dialog on the Cluster Nodes page, click Add.
   4. In the Add Cluster Nodes dialog, select the required cluster nodes from the list and then click Add.
   5. On the Cluster Nodes page, specify the required values in the Service Name and Port fields.
   6. Click Stream Count, and specify the number of streams or channels to allocate for each listed backup type, such as full, incremental cumulative, incremental differential, log, and synthetic full backups. Click Next.
   7. On the Options page, select one of the following options and then click Next:
      • Ignore the channels—This option specifies that when any selected nodes are unavailable during the backup, the streams from the unavailable nodes are ignored.
      • Distribute the channels—This option specifies that when any selected nodes are unavailable during the backup, the streams from the unavailable nodes are distributed among the available nodes.
   8. On the Summary page, review the displayed settings for the selected cluster backup nodes. To change any settings, click Edit or Back to return to a previous page.