22 Disaster recovery deployment  with backup applications This chapter provides preferred practices, general rules, and setup for disaster recovery (DR)  considerations for the following backup applications: It also provides effective techniques to perform DR processes and the related failback  process after the primary location recovers from the disaster situation. This chapter contains the following topics: Note:  ProtecTIER GA Version 3.4 was released with only the Virtual Tape Library (VTL)  interface support. File System Interface (FSI) support was added to ProtecTIER PGA 3.4  Version. For details, see the announcement letter: http://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/6/872/ENUSA P16-0076/index.html&lang=en&request_locale=en ' Copyright IBM Corp. 2012, 2016. All rights reserved. 395 GLYPH<SM590000> Commvault GLYPH<SM590000> EMC NetWorker deployment with ProtecTIER replication GLYPH<SM590000> Symantec NetBackup deployment with ProtecTIER replication GLYPH<SM590000> IBM Spectrum Protect GLYPH<SM590000> Deploying replication with specific backup applications GLYPH<SM590000> Single domain and multiple domains GLYPH<SM590000> The backup application catalog GLYPH<SM590000> Entering ProtecTIER DR mode GLYPH<SM590000> Disaster recovery operations with FSI GLYPH<SM590000> Disaster recovery operations with VTL GLYPH<SM590000> ProtecTIER replication overview GLYPH<SM590000> Disaster recovery operations GLYPH<SM590000> Commvault GLYPH<SM590000> EMC NetWorker  GLYPH<SM590000> IBM Spectrum Protect (as of version 7.1.3, Tivoli Storage Manager was rebranded to IBM  Spectrum Protect) GLYPH<SM590000> Symantec NetBackup