Neverfail Data Rollback Module ensures data restoration if a failover occurs by enabling a simple, swift application
restart from earlier points in time.
Neverfail's Data Rollback Module complements the Neverfail suite of high availability
and data protection products and enables network administrators to restore data
to a point in time when the data was still consistent, accurate and usable.
VSS shadow technology for improved data protection
Neverfail Data Rollback runs directly on top of Neverfail Heartbeat, and utilizes
the Microsoft® Volume Shadow Copy Service (VSS) technology to provide an efficient
application/data restoration and retrieval mechanism. By taking shadow copies of
a secondary, passive server, Neverfail avoids the typical “freezing”
of an application that VSS would normally incur on a production system, and thus
permits more frequent shadowing than in a single-server topology.
More frequent shadowing means greater granularity. Up to 512 snapshots can be stored
at any one time in an ultra-efficient format that only needs to keep track of differences
between snapshots. When a rollback is required, Neverfail's unique knowledge of
the application environment — including which application files and registry
settings require rollback protection — permits efficient restoration of only
the required application data from shadow copies, rather than an entire volume.
Protecting Data from Corruption with Neverfail Data Rollback
Neverfail's Data Rollback Module is incorporated directly into our standard management
console, providing a single interface for all of your
high-availability and disaster recovery
needs. Administrators can use the interface to customize their own snapshot schedules,
allowing them to decide for how long each snapshot should be saved. For example,
you might decide to save all snapshots for the last week's worth of data, but only
keep daily snapshots for older data. Then if data corruption does occur, administrators
can roll back to any of these snapshot points with the simple click of a button.
Affordable and effective continuous data protection
Available at a fraction of the cost of traditional clustering solutions, the Neverfail
Data Rollback Module can:
- Recover data from a physical or logical corruption to a consistent point in time
- Provide either manual or automatic switchback following a failover, with automatic
resynchronization between primary and secondary servers
- Integrate with Neverfail high availability
and disaster recovery solutions
to provide complete application availability, no matter the cause or source of corruption
- Leverage Microsoft® Volume Shadow Copy Service (VSS) technology to
ensure the highest level of compatibility across your Microsoft environment
- Eliminate all overhead associated with taking snapshots against your production
server
- Reduce required storage significantly by only capturing the differences between
your data and allowing consolidation of older data images
Neverfail solutions also ensure that users stay connected to applications during
IT activities requiring planned downtime,
such as migrations,
upgrades, maintenance,
and virtualization.
Consider the advantages of Neverfail's Data Rollback Module, part of a comprehensive
range of proven-effective Neverfail solutions for
high availability,
disaster recovery and continuous
data protection.
