Monthly Archives: April 2017

EMC Avamar Data Domain Replication Performance Turning

I recently worked on a performance turning for the backup solution with below components:

  • EMC Avamar as the backup server at DC1 and DC2;
  • Data Domain as the backup target storages at DC1 and DC2; and
  • Backup datasets are replicated between DC1 and DC2.

The backup client is Avamar NDMP node at both sites. The 50TB ISILON CIFS shares can be backed up in 2 hours by Avamar through NDMP. However, the replication of the daily backup to peer DC can take more than 24 hours.

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EMC Networker SQL Flat File Recovery

From EMC Networker Module for Microsoft (NMM) version 9.1, EMC introduces the new feature “SQL Flat File Recovery”, no exciting, but really a helpful feature for the DBA and Backup admin.

Before EMC Networker NMM version 9.1, the MS SQL database only can be recovered to the SQL database, either to the original database or a different database. Since SQL database and Networker are usually managed by different teams, restoring directly to the database increases the internal communication between different teams to get the task done correctly. By introducing “SQL Flat File Recovery”, Networker admin can recover the database flat file to the desired location and DBA can recover the flat file to SQL database after that at any time.

NMM 9.1 can be used with Networker server version 8.2.3 or later with some limitations stated in the administrator guide.

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