IntelliSnap - FAQ - SAP Oracle

How can I increase the number of snapshots created for a USP volume?

The maximum number of snapshots created for a USP volume is 3. When using the Hitachi Vantara storage array with SAP Oracle, you can have up to 4 snapshots on the same volume if you store the Data ($SAPDATA_HOME) and Config ($ORACLE_HOME/dbs) directories in the same volume.

Yes. Softlinks are supported for IntelliSnap backup for this iDataAgent's datafile paths and archive log location. Softlink Directory structure is supported on both NFS and SAN volumes.

Can I perform an IntelliSnap backup on the SAP Oracle database files of the split-mirror disks using Splitint interface through the rman_util interface?

No. You cannot perform an IntelliSnap backup on the SAP Oracle database files of the split-mirror disks through the rman_util interface. You can only perform the IntelliSnap backups using Splitint through util_file interface.

Can I perform a backup copy operation after performing IntelliSnap backups on the SAP Oracle database files of the split-mirror disks?

Yes. You can perform the IntelliSnap backups on the SAP Oracle database files of the split-mirror disks. However, to run a successful backup copy operation of the split-mirror disks (SNAP to Tape), consider the following:

  • Normally, you will not use SPLITINT to perform data backups on the Production server. If you want to perform the data backups on the Production using IntelliSnap, We would recommend you to use a different storage policy in the CommCell Console.
    Also, Use the CommCell Console to perform these IntelliSnap Backups on the Production server.

  • Make sure to run offline movement to Tape for any pending backup copies pertaining to the command line storage policy before using Splitint through util_file interface for IntelliSnap backups. Otherwise, the pending backup copies will be not be copied and the status will be displayed as Not Picked.

Does IntelliSnap supports backing up Raw Device Map (RDM) disks for an SAP Oracle Database configured in a virtual machine?

Yes.

IntelliSnap backup of Raw Device Map (RDM) disks is supported on SAP Oracle databases that are configured in virtual machines in physical compatibility mode, provided that one of the following conditions are met:

  • The client computer uses iSCSI initiator to mount snapshots

  • The physical proxy server uses Fibre Channel to mount snapshots

IntelliSnap backup of RDM disks is not supported for Hitachi Vantara arrays using HDvM engine.

In Internet Small Computer System Interface (iSCSI) configurations, you can configure LUNs on the source computer. The iSCSI works like the Fibre Channel (FC) and you can mount LUNs on the source or proxy client computers. The proxy can be a virtual machine.

If the Commvault software does not pick up the iSCSI, set the sSNAP_IsISCSI additional setting. When it detects the FC adaptor, the Commvault software uses a FC adaptor to mount snapshots in a Windows or UNIX configuration. Set the sSNAP_IsISCSI additional setting to use iSCSI even when a FC adaptor is detected.

What criteria is used to decide the best backup device type that could be used for an IntelliSnap backup?

If you want to use media other storage media, for example optical media, you can use the UTIL_FILE or UTIL_VOL parameters. In order to use the parameters the media supplier must have interfaces that support the BACKINT interface. The SAP utilities call the external backup program for the physical backup or restore of the files.

The UTIL_VOL_ONLINE parameter can reduce the offline redo log files volume for an online backup.

Are there considerations for a SAP for Oracle client that is part of a GRC configuration?

The following operations are not supported on a SAP for Oracle client:

  • An IntelliSnap mount and restore

  • An IntelliSnap revert

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