Brochure

Block – level local snapshot and snapshot replica — An ecient and economical
way to protect les
QNAP’s Whole Volume/LUN Snapshot Agent records the status of les using the Copy on Write mechanism. This helps in recovering les to
a previously saved state in case of accidental deletion or modication and meeting enterprise requirements of improving Recovery Point
Objective (RPO) and Recovery Time Objective (RTO).
Snapshot
A B C
Block level
snapshoot1
snapshoot2
Only modied data is backed up to save
space and increase eciency.
Whole data backup (higher space
requirement and reduced eciency).
File level
A B C
A B C1
C1
Only modified data is backed up to save space and increase efficiency. Whole data backup (higher space
requirement and reduced eciency).
Snapshot Replica RTRR Rsync NAS to NAS
Backup level Volume / LUN Shared Folder Shared Folder Shared Folder
Transmission mode Block-based File-level le-based File level block-based File-Level block-based
Backup scheme Only back up modied le Re back up whole le
Compare source and destination les and transmit only changed
data blocks
Time Scheduled Real time/ Scheduled Scheduled Scheduled
Encryption Supported Supported Supported Supported
Compression Supported Supported Supported Supported
Memory Requirement 4GB RAM Required No Requirement No Requirement No Requirement
Remote System QNAP NAS QNAP NAS Rsync Server QNAP NAS
Using Scenario
`
Lot of small data
`
Large le that need continues
modication (VM image or backup image)
`
Real time replication or
synchronization
`
Fast transmit within local LAN
`
Large le that need continues modication
`
Transmit in long distance
File-level recovery
The low-impact, small-sized, and user recoverable snapshots offer more benefits of storage
administration compared to traditional le copies, which are often stored as a single large data le. For
instance, you can choose to recover a le in a folder or the entire folder instantly with a few clicks.
The block-based QNAP Snapshot Technology
supports up to 256 snapshots for each volume
or LUN, up to 1024 snapshots. You can schedule
snapshots hourly, daily, weekly, monthly, or
yearly to meet enterprise requirements of
improving Recovery Point Objective (RPO) and
Recovery Time Objective (RTO). Further, the
smart snapshot function can assist in saving
space and reserve snapshots for future use.
Additionally, Snapshot Agent ensures data
integrity on locked or open les while taking
snapshots.
Benefits of QNAP
Snapshot Technology
Local snapshot to provide continuous data protection
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TVS-x82 Series
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TVS-x82 Series