SnapSync

Exclusive for ZFS NAS! The best disaster recovery solution.

Real-time SnapSync immediately synchronizes changes to data with the destination storage. Each time data is written to the source, it is also identically written to the destination. If a disaster event occurs, Real-time SnapSync assists organizations in resuming essential data and services in the shortest time.

Tutorials

Why SnapSync?

The backup density and reliability of enterprise data tests the adaptability of disaster recovery. You can count on QNAP’s ZFS storage that prioritizes data integrity for high-standard reliability. Coupled with its unique SnapSync feature for data replication and synchronization, critical data is fully protected by complete and immediate replication backup. Organizations can failover the data from the secondary in the event of a disaster at the primary site – providing the strongest support for nonstop business operations and helping users prevent data loss!

SnapSync minimizes downtime and prevents data loss

SnapSync is configured through a Mirror relationship between shared folders/LUNs on primary NAS and secondary NAS. After creating SnapSync jobs, shared folders and LUNs in the secondary NAS become read-only to ensure data protection.

Mode 1

Scheduled SnapSync

RPO = 5 ~ 60 minutes
- On the primary NAS, create block-level snapshots that only records data variable blocks, then schedule backup jobs for snapshots.
- Advantages: smaller snapshots save bandwidth and storage space costs.
Mode 2

Real-time SnapSync

RPO = 0
- Achieve real-time data synchronization between primary NAS and backup NAS.
- Advantages: zero RPO (Recovery Point Object), meaning zero data loss.

SnapSync used for Copy Data Management (CDM)

After synchronizing data via SnapSync from a primary to a secondary NAS, you can further conduct Snapshot Instant Clone on the secondary NAS. This assists in copy data management and data analysis without interfering with production server operations and the primary data.

QuTS hero NAS is the top choice for business storage

Primary NAS:
Comprehensive Tier 1 data protection

ZFS-based QuTS hero NAS ensures data integrity, data security, and system reliability – fulfilling data storage for first-line production servers.
Secondary NAS:
Instant disaster recovery solution

Build a zero RPO disaster recovery plan by utilizing real-time SnapSync. QuTS hero NAS includes models with native 25GbE connectivity that enables remarkable replication performance with a network environment latency of less than 5 milliseconds.

Best practice for configuring real-time SnapSync

Build a zero RPO disaster recovery plan by utilizing real-time SnapSync.

QuTS hero provides highly-reliable data protection:

WORM (Write Once, Read Many Times)
Automatic RAID disk replacement with spares before potential failure
RAID Triple Parity and Triple Mirror
65,536 near-limitless snapshots
Up to 5 petabytes capacity per shared folder

QuTS hero

Highly-reliable NAS operating system best suited for business applications

Learn More

1.SnapSync is supported by QNAP NAS models with the QuTS hero (4.5.3 or later) and QES ( v2.1.1 v11 or later) operating systems. These NAS can be paired with each other to provide the perfect backup storage solution. 2.To ensure successful synchronization of folder & file permission settings, it is strongly recommended that the SnapSync-paired NAS systems are deployed in an AD/LDAP compliant domain environment to prevent inconsistent system UIDs (especially when the paired NAS includes a QuTS hero NAS and a QES NAS).