NetBackup PureDisk is the deduplication engine for NetBackup, enabling efficient, storage-optimized data protection for the data center, remote office and virtual environments. NetBackup PureDisk is a software-based deduplication solution that is tightly integrated with NetBackup. PureDisk is ideal for unique environments that require high performance and scalability.
NetBackup PureDisk 6.6 offers new features that can improve how customers use data deduplication within their remote offices, data center and virtual environments.
Overview of PureDisk Deduplication Technology
PureDisk offers segment level global deduplication for the enterprise. During the backup process, the backup data set is broken down into smaller segments and each segment is assigned a hash value which is calculated based upon the binary content of a file.
This is done so as to uniquely identify the data segments, rather than depending on the file path and name on any given hardware device. Since the sequence can be used to uniquely identify a file by its contents, it is called the fingerprint. The system therefore refers to files in the same manner that the Internet refers to servers. Moreover, files become referable regardless of their position on a given device. The fingerprint is derived from the total contents of the file. The result is that files with the same content will have the same fingerprint, even when the files have different names, locations, attributes, creation or modification dates, and security attributes. Files with different content will lead to a different fingerprint. Indeed, only a comparison of two fingerprints is required to know if two files with different metadata (filename, path name, etc.) are unique or not.
Source : www.symantec.com
NetBackup PureDisk 6.6 offers new features that can improve how customers use data deduplication within their remote offices, data center and virtual environments.
Overview of PureDisk Deduplication Technology
PureDisk offers segment level global deduplication for the enterprise. During the backup process, the backup data set is broken down into smaller segments and each segment is assigned a hash value which is calculated based upon the binary content of a file.
This is done so as to uniquely identify the data segments, rather than depending on the file path and name on any given hardware device. Since the sequence can be used to uniquely identify a file by its contents, it is called the fingerprint. The system therefore refers to files in the same manner that the Internet refers to servers. Moreover, files become referable regardless of their position on a given device. The fingerprint is derived from the total contents of the file. The result is that files with the same content will have the same fingerprint, even when the files have different names, locations, attributes, creation or modification dates, and security attributes. Files with different content will lead to a different fingerprint. Indeed, only a comparison of two fingerprints is required to know if two files with different metadata (filename, path name, etc.) are unique or not.
Source : www.symantec.com