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FAQs - SAP HANA iDataAgent

Does the Commvault software support SAP HANA backups when the log mode is circular?

You can perform a database backup when the log mode is circular. You can only perform a point-in-time restore when the log mode is normal.

Is there a way to perform a restore when the catalog backup fails and the data backup succeeds?

When the catalog backup fails and the data backup succeeds, you can perform a point-in-time restore with the data backup and without the catalog backup from the SAP HANA Studio.

Are there special entries needed in the param file for a cross-machine restore?

If you perform the restore from the CommCell Console, then the Commvault software automatically creates the required parameters for a cross-machine restore.

If you perform the restore from the SAP HANA studio, then you must  set the srcCrossClient environmental variable in the SAP HANA BACKINT parameter file (on the destination client), to the host where you performed the backup. For information on required and optional parameters, see SAP HANA BACKINT Configuration Parameters.

What configuration is required for multi-stream backups?

Set the parallel_data_backup_backint_channels parameter in the SAP HANA Studio. You do not not need to make any modifications to the Commvault subclient.

What configuration is required for SAP HANA multi-stream restores?

Restores run with the same number of streams that were used in the backup.

Set the parallel_data_backup_backint_channels parameter in the SAP HANA Studio, and then enable multi stream backups.

During SAP HANA backup operations, why do some of the streams become idle after some time?

The stream allocation for SAP HANA backup operations depends on multiple factors such as streams per backint and per volume. Additionally, streams are further split into multiple channels based on the parallel_data_backint_channels parameter, and each channel in turn spawns child backints with each backint invoking a new stream.

When a stream completes data transfer, backint exits and does not switch to another idle stream, so some of the streams become idle during the backup operation.  

Last modified: 12/4/2017 1:58:39 PM