Tag Archives: DD Boost

RMAN/DD Boost backup fails with Error 5034 after Data Domain upgrade

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So your dutiful Infrastructure Team upgrades the Data Domain backup appliance with the latest DD OS code and patches, bringing you up to the latest patch level.

After this, your RMAN backups using DD Boost start failing, and checking the sbtio.log file, which is found in the user dump destination, we see entries like this:

SBT-27970 (211074992) 04/01/16 21:45:01 ERR : [6D42:C94BFB0] ddp_open_file() failed for File: dd0205_boost/XIO11WSB_df_svr1vlas_1_1.bk, Err: 5034-nfs create failed (nfs: Permission denied)
SBT-27970 (211074992) 04/01/16 21:45:01 error 7501: sbtbackup: Could not create file XIO11WSB_df_svr1vlas_1_1.bk on host rstdd0205mgmt.us.oracle.com, error 5034
SBT-27973 (227712944) 04/01/16 21:45:01 ERR : [6D45:D929FB0] ddp_open_file() failed for File: dd0205_boost/XIO11WSB_df_t0r1vlas_1_1.bk, Err: 5034-nfs create failed (nfs: Permission denied)
SBT-27973 (227712944) 04/01/16 21:45:01 error 7501: sbtbackup: Could not create file XIO11WSB_df_t0r1vlas_1_1.bk on host rstdd0205mgmt.us.oracle.com, error 5034

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Using Data Domain Mtree replication for DD Boost and Oracle RMAN

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In an earlier post, I looked at using RMAN managed replication to make two copies of an RMAN backupset to two separate Data Domains.

In the post Replicating an RMAN Backupset with Data Domain and DD Boost I then restored the database from the secondary copy to demonstrate that RMAN managed replication could be a useful tool for DBAs to protect against data center failures.

In this example however, I am going to use Data Domain’s native Mtree replication instead of RMAN’s managed replication.

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Replicating an RMAN Backupset with Data Domain and DD Boost

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In this post, we will replicate an RMAN backupsets using RMAN managed replication and DD Boost.

In an earlier post, I showed how it was possible to use Data Domain’s Mtree replication to ensure that your Oracle RMAN backups are safely replicated to a second backup appliance when using Data Domain as an NFS target.

Replicating the RMAN backupset is important to protect databases from failures that might affect a whole data center, such as prolonged power or network failures, or events such as a flood that might destroy infrastructure.

These scenarios are rare but should they occur, having the RMAN backups of our databases available at a second location can be the different between an organization surviving such an event, or not.

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Configuring DD Boost on Linux for Oracle RMAN

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In this post, we are going to install the DD Boost module for Oracle RMAN.

In the previous post, Configuring DD Boost Replication for Oracle RMAN, we enabled DD Boost on the Data Domain and set up storage units that replicate automatically between sites.

In this post, we are going to install and configure the DD Boost for Oracle RMAN module so that our RMAN backups can leverage the performance benefits of DD Boost.

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Configuring DD Boost Replication for Oracle RMAN

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In this post, we are going to install the DD Boost module for Oracle RMAN.

DD Boost is an optional module that works with Data Domain and a number of applications and databases, including Oracle. DD Boost moves some of the sophisticated deduplication process from the Data Domain appliance to the database server, resulting in a dramatic reduction in network bandwidth and backup times.

A greater than fifty percent reduction in backup times for a full level zero RMAN backup is typical when switching to DD Boost although as always, your mileage may vary.

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