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Data Storage Systems, Inc (DSS, Inc). staff are experts in...data backup, data
protection management, data storage networking, data availability replication, data
restore and data storage virtualization.
Data De-Duplication
What is de-duplication?
As businesses continue to move towards D2D backup, VTL, and virtualization, the cost of rapidly growing data stores that require backup & remote replication for disaster recovery can quickly get out of control. Data de-duplication technology is one way IT departments can reduce and control the costs of keeping and backing up data. In addition, de-duplication helps reduce the bandwidth costs associated with replicating data over a WAN.
restore and data storage virtualization.
Data De-Duplication
What is de-duplication?
As businesses continue to move towards D2D backup, VTL, and virtualization, the cost of rapidly growing data stores that require backup & remote replication for disaster recovery can quickly get out of control. Data de-duplication technology is one way IT departments can reduce and control the costs of keeping and backing up data. In addition, de-duplication helps reduce the bandwidth costs associated with replicating data over a WAN.
Experience massive reduction of storage capacity requirements
Benefits of data de-duplication include:
Reduced capacity requirements for cost-savings
Inline de-duplication v.s. offline de-duplication
There are two main methods of implementing deduplication: inline or offline. Inline de-duplication is performed at the host application, or on an appliance sitting on the data path, which minimizes disk capacity requirements, thereby maxmizing cost-savings achieved by reduced disk requirements. Inline dedupe has its disadvantages, as performance is negatively impacted by having de-duplication performed on the data path.
Offline de-duplication performs the process at the backup system or appliance, which requires more disk capacity, but maximizes performance by having the process reside outside of the data path, after the backup job is complete.Some of our data deduplication solutions provide policy-based de-duplication so each backup job can utilize a de-duplication method appropriate for the workload requirements.
There are two main methods of implementing deduplication: inline or offline. Inline de-duplication is performed at the host application, or on an appliance sitting on the data path, which minimizes disk capacity requirements, thereby maxmizing cost-savings achieved by reduced disk requirements. Inline dedupe has its disadvantages, as performance is negatively impacted by having de-duplication performed on the data path.
Offline de-duplication performs the process at the backup system or appliance, which requires more disk capacity, but maximizes performance by having the process reside outside of the data path, after the backup job is complete.Some of our data deduplication solutions provide policy-based de-duplication so each backup job can utilize a de-duplication method appropriate for the workload requirements.
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Data Protection,
Storage Networking Systems.
Storage Networking Systems.
Reduce WAN resources dedicated to backup
Dramatically shorten backup windows
Extend data retention timelines
Businesses who take advantage of data de-Duplication:
As more organizations move into D2D (disk-to-disk) backup for nearline storage as well as remote replication for disaster recovery,
and technologies such as VTL (virtual tape library), many are concerned with the cost of these new disk-based data protection
solutions. Although low-cost disk technologies like SATA have reduced the cost of storing data on disk, rapidly growing capacity
requirements continue to keep disk-based data protection out of the reach of small- to medium-sized businesses with modest IT
budgets.
Virtual Tape Library (VTL)
As the performance of data protection & recovery tasks have improved, the demand for
aggressive RTOs (recovery time objectives) and RPOs (recovery point objectives) for
recovery efforts has grown. In addition, increasing data volumes, the need to retain
data longer for compliance with government mandates, and shrinking backup windows,
haven't eliminated the need for efficient backup & data protection.
Dedupe is a method of reducing or eliminating redundant files or blocks of data, to
ensure that only unique data is stored to disk. This technology is also sometimes
referred to as capacity optimized protection, and addresses rapidly growing capacity
needs due to “capacity bloat” by reducing the capacity required at the backup site.
For example, if an employee emails out a Word attachment to 10 co-workers oftentimes, a copy is saved for every employee it was sent to, increasing the capacity requirement of the file by a factor of 10 on the messaging data volume. De-duplication technology eliminates the redundant files, replacing them with ‘pointers’ to the original data after it has been confirmed that all copies are identical. Ideally, data de-duplication technology should operate transparently.
For example, if an employee emails out a Word attachment to 10 co-workers oftentimes, a copy is saved for every employee it was sent to, increasing the capacity requirement of the file by a factor of 10 on the messaging data volume. De-duplication technology eliminates the redundant files, replacing them with ‘pointers’ to the original data after it has been confirmed that all copies are identical. Ideally, data de-duplication technology should operate transparently.
Data De-Duplication
Increased capacity for other backup data, leading to longer retention period with minimal media management
More reliability and improved RTO
Lowers the cost and bandwidth barrers associated with WAN-based remote replication