Where does the deduplication happens in case of server side deduplication?
In server-side data deduplication, processing takes place exclusively on the server after the data is backed up. In client-side data deduplication, the processing is distributed between the server and the backup-archive client during the backup process.
What is a deduplication appliance?
Data deduplication hardware is disk storage that eliminates redundant copies of data and retains one instance to be stored. Hardware-based deduplication products perform deduplication at the target rather than the source, or server.
What is HP StoreOnce catalyst?
What is StoreOnce Catalyst? Simply put, Catalyst is a backup protocol developed by HPE that is optimized for disk-based data protection. Data protection applications can use Catalyst to store, replicate, and archive customer data. Users create Catalyst “stores” that reside on StoreOnce appliances or in the cloud.
What is server side deduplication?
Server-side data deduplication is a two-phase process. In the first phase, the server identifies duplicate data. In the second phase, duplicate data is removed by certain server processes.
What is the advantage of source based deduplication?
Source deduplication has the advantage of using less LAN (on-premise) bandwidth but has the disadvantage of using more client resources; target deduplication has the advantage of using less client resources but has the disadvantage of using more LAN bandwidth.
What is deduplication in storage?
What is Data Deduplication? Data Deduplication, often called Dedup for short, is a feature that can help reduce the impact of redundant data on storage costs. When enabled, Data Deduplication optimizes free space on a volume by examining the data on the volume by looking for duplicated portions on the volume.
How does deduplication backup work?
Backup deduplication minimizes storage space by detecting data repetition and storing the identical data only once. Deduplication also reduces network load, because duplicates of data previously backed up is not even transferred over the network to storage.
Is HPE Storeonce immutable?
The HPE Storeonce line of deduplication storage arrays offer time-lock data immutability (i.e. the ability to prevent the backup product from being able to change data is has written to the Storeonce for set duration) but only with backup products that support the feature.
What is source side deduplication?
Source deduplication is the removal of redundancies from data before transmission to the backup target.
What is target based deduplication?
Target deduplication is the removal of redundancies from a backup transmission as it passes through an appliance sitting between the source and the backup target. Both intelligent disk targets (IDTs) and virtual tape libraries (VTL) use target deduplication.
What does deduplication mean?
Deduplication refers to a method of eliminating a dataset’s redundant data. In a secure data deduplication process, a deduplication assessment tool identifies extra copies of data and deletes them, so a single instance can then be stored. Data deduplication software analyzes data to identify duplicate byte patterns.
Why do we need deduplication?
Data deduplication is a process that eliminates excessive copies of data and significantly decreases storage capacity requirements. Deduplication can be run as an inline process as the data is being written into the storage system and/or as a background process to eliminate duplicates after the data is written to disk.
Can the StoreOnce software deduplication component be installed remotely?
The StoreOnce Software Deduplication component can be installed locally or remotely. Remote installation of Data Protector StoreOnce Software Deduplication component Connect to any client with the Data Protector User Interface component.
How do I enable source-side deduplication with Data Protector media agent?
Install the Data Protector Media Agent or the NDMP Media Agent component on all systems that will become gateways, including the clients on which source-side deduplication will be enabled. Install the Data Protector StoreOnce Software Deduplication component on the system which will host the StoreOnce store.
How do I stop the stores on the StoreOnce software server?
Important: It is mandatory to manually stop all stores on the StoreOnce Software server before stopping the daemon (Linux) or service (Windows), or before rebooting the server. Failing to do so may result in a corrupted store and data loss. You can stop the stores by using the StoreOnceSoftware utility.
How do I change the default value of the storeoncesoftware utility?
The default value can be modified using the omnirc option. The warning message is issued before any further read/write operations are done to the store, once per day, or if the StoreOnceSoftware utility is restarted. A warning is also shown in the backup session message at the beginning and at the end of the session.