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Software-defined platform for secure cloud storage, deduplication and replication.
QoreStor® by Quest expands your data storage options while reducing your storage footprint and costs. Use QoreStor to quickly and easily shift data and object storage to the cloud for backup, disaster recovery and compliance purposes. Advanced compression and data/object deduplication algorithms slash storage requirements so you don’t exceed your cloud virtual machine budget. 

QoreStor Software Defined Secondary Storage 01:48

Rapid data protection and storage at your fingertips

With the exponential growth of data, backups are becoming prohibitively slow and storage costs are rising. How can you protect your structured, object-based and cloud data in the most secure and efficient way?

Using proven deduplication, replication and object storage technologies QoreStor accelerates backup performance both on-premises and in the cloud. Simple to deploy and easy to manage, QoreStor enables you to shrink replication time, improve data security and meet compliance requirements. QoreStor is highly interoperable and supports offerings from numerous storage hardware vendors, virtualization platforms, backup providers and cloud partners. Learn More

Lower storage costs on-premises and in the cloud

Accelerate backups with direct-to-cloud backup

Recover data from the cloud immediately







Why is QoreStor the best bet for cloud-connected storage?

Connect to the cloud faster and more easily with QoreStor. You can lower data protection costs and maximize the return on your IT investment by leveraging virtually any storage hardware, data backup software, virtualization platform or cloud provider.
Not all deduplication is created equal

Not all deduplication is created equal

Exponential data growth takes a toll on your storage budget. Up until now, data deduplication relied on hardware appliances or was tied to only one vendor’s backup solution. With QoreStor, you get a pure software solution that you can run on virtually any server and use with most backup solutions. It delivers content-aware variable-block data deduplication with built-in compression and encryption that delivers unparalleled storage savings — up to 93%. See how much your storage will shrink with QoreStor.

Accelerate backups and data recovery

Accelerate backups and data recovery

Through data compression and deduplication, QoreStor decreases the amount of data flowing to backup servers, thereby reducing the impact on your network as well as the amount of time needed for backup operations. Smaller backup windows free up both computing and IT resources for higher priority initiatives. In the case of partial data recovery, smaller data sets reduce cloud egress rates since only changed data needs to flow back.

Object deduplication and storage

Object deduplication and storage

The significant increase in unstructured data has left IT teams grappling with how to store large files, such as videos, images and executables cost-effectively, especially in the cloud where active storage is the most expensive. QoreStor offers features specifically designed to maximize lower cost object-based storage. Its Object Direct feature allows QoreStor to use object storage for its main data repository, while the Archive Tier feature allows backup data to be sent from QoreStor directly to a cold cloud storage solution. When combined with the deduplication, compression and encryption technologies already available in QoreStor, low-cost object storage becomes simple.

Key features

Hardware and software agnostic

Gain flexibility by using any storage hardware, backup software or cloud provider.

Role-based user access

Assign access based on role for more granular control for larger organizations and MSPs.

Direct-to-cloud backup

Back up directly to the cloud over your WAN, but with LAN-like speeds.

Direct-to-target backup

Back up directly to the target storage device, bypassing the media server.

Best-in-class data deduplication tools

Lower backup storage requirements by an average of 20:1.

Remote replication for DR

Replicate only unique data to remote site, reducing the replication windows by 10 to 15 times.

Secure Connect with built-in protocol accelerators

Ensure backups complete, despite slow and unreliable WAN connections, and accelerate data ingest by up to 20TB/hr

Data security

Tighten data security with built-in encryption at rest, secure erase and FIPS 140-2 compliance.

NetVault Backup Integration

Accelerate backups and add replication, variable block deduplication, and direct to storage backup by using QoreStor with NetVault Backup.

Cloud-tier storage

Optimize secure, seamless, long-term data retention with cloud tiering.

The experts agree!

2020 People’s Choice Stevie Award

Bronze Winner: Cloud Storage & Backup Solution

Gold Winner: Disaster Recovery as a Service

QoreStor community edition: try it today

QoreStor community edition: try it today
Get full functionality, unlimited use, with 1TB maximum storage support.

Become a QoreStor Managed Services Provider

Become a QoreStor Managed Services Provider
Join our award-winning MSP program recognized for excellence in backup, disaster recovery and business continuity.

Works with virtually any backup software

Total Flexibility
No matter which backup software you use, QoreStor can help you accelerate backup speed, reduce storage costs and replicate to the cloud for disaster recovery. QoreStor Interoperability Page

Accelerate your Veeam backups significantly while reducing backup storage more than 95%.

NetVault Plus: a fully integrated solution

NetVault Plus delivers the power of NetVault data protection along with QoreStor deduplication, replication and tiered storage.

QoreStor-ready hardware

To ensure optimal performance of your QoreStor product, Quest recommends operating our software on pre-configured server hardware purchased directly from our hardware partners below. We have partnered with these companies to qualify the QoreStor software on server hardware for optimal performance.
MBX Systems


Throughput and savings
Built-in data containerization
System performance
Role-based access control
Health and management
Immediate replication
See local and cloud storage, throughput and capacity from an easy-to-use interface.


See local and cloud storage, throughput and capacity from an easy-to-use interface.


For detailed information on system specifications, refer to the QoreStor Interoperability Guide.



QoreStor Data Sheet

Accelerate backup speed, reduce storage costs and use the cloud for disaster recovery.
White Paper

Cloud Tiering and Object Storage for Backup — Balancing Cost and Speed

Cloud tiers are a good place for your backup and archives. Combined with object storage, cloud tiering is becoming more popular...
Technical Brief

How to Build a Lightning-Fast, Multi-Petabyte Backup Repository

Learn how to scale your secondary storage with Quest NetVault Plus—our backup and recovery software and data dedupe software combined...
Technical Brief

Accelerating Data Protection with Quest QoreStor and Veeam

Improving RPO and RTO service levels for backup and recovery is one of the top challenges for IT today. Using Quest QoreStor software-defined...
Technical Brief

Deduplication: The Hidden Truth and What it May Cost You

While deduplication has been available in the market for some time, not all solutions are equal, and it is often useful to understand...
White Paper

The Case for Software-Defined Secondary Storage

Learn how software-defined secondary storage can help accelerate backups, reduce storage requirements and costs, and enable fast...
Technical Brief

Replicating to the Microsoft Azure cloud with QoreStor

See how to replicate on-premises backups from QoreStor to the Microsoft Azure cloud – a simple process that takes only moments.
White Paper

DCIG Paper: Rethinking Your Data Deduplication Strategy in the Software-defined Data Center

This whitepaper describes software-defined deduplication and outlines the use cases and benefits for use in both the datacenter...

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Software-defined secondary storage platform for backup

Support and services

Product Support

Self-service tools will help you to install, configure and troubleshoot your product.

Support Offerings

Find the right level of support to accommodate the unique needs of your organization.

Education Services

Training courses delivered through online web-based, on-site or virtual instructor-led.
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