Exposing the Six Myths of Deduplication
March 21st, 2013 By: Industry Perspectives
Myth 5: Deduplication is a single point of failure and is not a good idea in general. This myth assumes that if one of the deduplication nodes fails, then the company is stuck. Most deduplication solutions don’t protect against failure, as they are not linked into a single clustered system with failover capability.
Reality: On the contrary, high availability allows companies to add additional storage and backup up any data in another node if there should be a server or storage failure. A deduplication solution that allows for the linking of multiple nodes eliminates the problem of a single point of failure, because if one node fails then the system automatically fails over to another node. High availability ensures that the data is available at any time, dramatically reducing recovery point time and point objectives in the event of an IT failure or disaster. Additionally, advanced deduplication solutions provide high availability backup nodes that scale independently of high availability cluster nodes. This allows companies to handle large data sets or meet more severe backup windows.
Myth 6: Deduplication will not write data to tape, and I still use and need my tapes. IT administrators feel that implementing deduplication will force a change in the backup procedure because it can’t be integrated into the backup procedures and tape archival part of the process.
Reality: Deduplication does not require a rip-and-replace approach for target backup processes. By using a virtual tape user interface, the deduplication appliance replaces tape with disk, but with no backup process change. Many corporations require tape backup to meet archival and legal data retention requirements. IT admins need advanced automated tape management capabilities within their backup and deduplication environments to simplify their operations, decrease media consumption and reduce tape handling costs. The deduplication solution must integrate smoothly into the tape archival system, providing IT admins with the ability to deduplicate data before it is archived.
With disk-based and flexible deduplication systems, companies have quicker restore times following IT issues or disasters. The data set can be stored locally for quick recovery, as well as exported to tape. Deduplication does not slow down a firm’s recovery efforts; rather it enhances the overall backup process by easily integrating into existing tape management and backup procedures, avoiding the challenge of creating new backup processes.
Additionally, today’s high availability, global deduplication solutions protect business-critical data and can scale to meet growth requirements without requiring equipment upgrades. IT admins are charged with protecting business-critical data and need the straight facts on how this technology will strengthen the overall data protection plan. They cannot afford to base their decisions on false data and preconceived notions. In busting these deduplication myths, it is clear that deduplication is vital to a company’s data protection plan.
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