IBM recently announced the addition of deduplication technology to their Tivoli Storage Manager (ITSM) backup application. ITSM is a powerful application that uses a progressive incremental approach to data protection that is completely different from most other backup applications. The addition of deduplication to ITSM provides a benefit in disk space utilization, but also creates some new challenges.
The first challenge for many TSM environments is that administrators are already over-burdened with having to manage numerous discrete processes to ensure that backup operations are meeting their business requirements. The deduplication functionality within ITSM adds another process to an already complex backup environment. In addition to scheduling and managing processes such as reclamation, migration and expiration as part of daily operations, administrators now have to manage deduplication as well. This management may involve activities as disparate as capacity planning, fine-tuning, and system optimization. The alternative is to use a VTL-based deduplication solution like a SEPATON® S2100®-ES2 VTL with DeltaStor® software, which will provide deduplication benefits without having to create and manage a new process.