If you are running Oracle RAC backup or restore operations while using Oracle Standard Edition, you may receive the following warnings if Oracle detects that the number of streams is not correct:
RMAN-06908: warning: operation will not run in parallel on the allocated channels
RMAN-06909: warning: parallelism requires Enterprise Edition
Oracle raises these warnings because Standard Edition cannot have more than one stream configured for a backup or restore operation. The warning causes the backup or restore to complete with a status of Completed with Errors (CWE). You may see these warnings even if the number of streams is set to 1 for each Oracle RAC node at the subclient level.
Procedure
Use the following steps to set up the configuration.
Configure the Number of Streams in the Subclient
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From the Command Center navigation pane, go to Protect > Databases.
The database overview page appears.
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On the Instances tab, click the Oracle RAC instance.
The instance overview page appears.
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For each subclient, on the Subclients tab, click the subclient name.
The subclient properties page appears.
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Under Streams, click the action button
for each server and set the number of streams to 1.
Configure the Connect String with a Username of “/” for Each Oracle RAC Instance
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From the Command Center navigation pane, go to Protect > Databases.
The database overview page appears.
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On the Instances tab, click the Oracle RAC instance.
The instance overview page appears.
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On the Configuration tab, in the row for the server under RAC database instances, click Edit
.The Edit RAC instance dialog box appears.
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In the Connect string box, type "/" (without quotes) for the first part of the Oracle connect string. The remaining fields must be empty.
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Click SAVE.
The connect string information for all the servers in the RAC database instance is updated.
Results
The system detects the username of "/" and limits the channels to just one node during a backup or restore operation.