How does deduplication work in NetBackup?
With media server deduplication, the NetBackup client software creates the image of backed up files as for a normal backup. The client sends the backup image to a media server, which hosts the plug-in that duplicates the backup data.
What is the utility used for data deduplication in NetBackup?
The spadb command line utility that lets you use the NetBackup Deduplication Manager (spad) to set WORM for an LSU and define the WORM mode and the interval for making the image immutable and indelible. The Deduplication Manager reads the WORM mode from the /etc/lockdown-mode. conf file file.
What is client side deduplication NetBackup?
With NetBackup Client Direct deduplication (also known as client-side deduplication), the client hosts the plug-in that duplicates the backup data. The NetBackup client software creates the image of backed up files as for a normal backup.
How does NetBackup NDMP backup work?
In NDMP local backup, the NetBackup for NDMP server initiates the backup. The data travels from the NDMP host’s disk to a storage device that is attached to the same host or is available on a SAN. The NetBackup drives must be in NDMP storage units.
What is deduplication in storage?
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.
Which action is performed by the NetBackup deduplication plug in?
file fingerprinting calculations
The deduplication plug-in compares the file fingerprints and the segment fingerprints against the fingerprint list in its cache. The deduplication plug-in performs file fingerprinting calculations.
What is NetBackup MSDP?
1 Comment. This post covers Media Server Deduplication Storage Pool (MSDP) which is an embedded deduplication technology that ships and is installed with base NetBackup 7.6 software, and that is provided on NetBackup appliances running version 2.6 software.
What is PureDisk in NetBackup?
Veritas NetBackup PureDisk is a product that provides a complete backup and deduplication environment. It can be used as a stand-alone (PureDisk writes data to the storage pools) or as a back-end for NetBackup.
What is NDMP port number?
Network Data Management Protocol (NDMP) runs on TCP port 10000 and is used primarily for backup of network-attached storage (NAS) devices, such as storage systems.
What is deduplication techniques?
Data deduplication — often called intelligent compression or single-instance storage — is a process that eliminates redundant copies of data and reduces storage overhead. Data deduplication techniques ensure that only one unique instance of data is retained on storage media, such as disk, flash or tape.