For the best web experience, please use IE11+, Chrome, Firefox, or Safari


An agile solution for optimizing secondary storage in any location.
Quest QoreStor® expands your data protection secondary storage options while reducing your storage footprint and costs. QoreStor facilitates the adoption of most storage types, uniquely including cloud object storage like native object storage. QoreStor’s advanced compression and deduplication algorithms slash storage requirements and costs anywhere QoreStor is deployed, even in the cloud. Best of all, QoreStor includes ransomware protection capabilities to protect your backup data.

QoreStor Software Defined Secondary Storage 01:48

Faster protection and secondary 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?

QoreStor will significantly improve most backup solutions you use. You can accelerate backup performance, reduce storage requirements and cost, and more efficiently leverage cloud object storage for backup, disaster recovery and long-term data retention. QoreStor also shrinks replication time, improves data security and helps you address compliance requirements. QoreStor is highly interoperable and supports numerous storage vendors, virtualization platforms, backup providers and cloud service providers. Learn More

Lower storage costs on-premises and in the cloud

Accelerate backups to reduce risk of data loss

Get the most from your cloud storage







Why is QoreStor the best bet for cloud storage?

Connect to the cloud faster and more easily with QoreStor. Its advanced technologies enable you to lower your cloud storage costs and maximize the return on your IT investment. You can now leverage low-cost object storage in the cloud like never before.
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-prem or in the cloud and use with most backup solutions. Source-side data deduplication with built-in compression delivers unparalleled storage savings — up to 93%, especially useful for cloud object storage. See how much your storage will shrink with QoreStor
Accelerate backup and data recovery from the cloud

Accelerate backup and data recovery from the cloud

Through advanced source-based data deduplication and compression technologies, QoreStor decreases the amount of data flowing across the network and up to the cloud, and reduces the time needed for backup operations. Smaller backup windows free up both computing and IT resources for higher priority initiatives. In the case of data recovery, time to first byte is accelerated from local data so that smaller cloud data sets reduce egress costs as only data needed to fill the gaps flows back.
Object deduplication and storage

Get more from object storage

QoreStor’s Object Direct feature is specifically designed to get more from object-based storage whether on-prem or in cloud storage. It can leverage object storage for its main data repository to keep operating costs low and enables backup data to be kept directly on more cost effective cloud object storage for long-term retention. When combined with QoreStor’s S3 Object Connect capabilities, deduplication and compression, low-cost cloud object storage becomes even more cost effective.
Ransomware Prevention

Ransomware prevention

QoreStor helps you fight ransomware and cybercrime by providing immutable backup storage whether on-premises or in the cloud. You can also set policies to keep a copy of deleted backup data for a defined retention period in the QoreStor recycle bin, just in case of an attack. See the QoreStor Interoperability Guide for supported backup solutions.
Disaster recovery ready

Disaster recovery ready

Between mega-disruptive natural disasters, ransomware attacks and even simple unplanned outages, IT staff need to have a good disaster recovery plan and solution. With its secure, fast and reliable replication, QoreStor lets you replicate backups using virtually any backup solution, to multiple storage devices and locations. You can even replicate between multiple public clouds to establish a 3-2-1 data protection approach and make sure your data is recoverable. QoreStor delivers 10x faster replication and ensures replication completes securely, even over unreliable, and inconsistent WAN connections.

Run QoreStor in Azure

Run QoreStor in Azure to reduce cloud storage costs and enable disaster recovery.

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 cloud object storage 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.

Fast and powerful replication

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

Secure Connect with built-in protocol accelerators

Ensure backups complete, even over slow and unreliable WAN connections

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. May be be used with multiple clouds.

Backup acceleration

Protocol accelerators speed backup performance and data ingest speed up to 20 TB/Hr

Immutable backup storage

Protects against ransomware attacks as data written to QoreStor is made immutable and cannot be overwritten, changed or deleted outside of the required retention settings. Works with RDA-based backup solutions.

Data recycle bin

Helps protect against ransomware attacks by storing a copy of deleted data in the QoreStor data recycle bin for the specified retention period. Works with all supported backup applications.
QoreStor data deduplication significantly reduces data center and cloud storage costs! See how much you can save

The experts agree!

2021 Bronze Winner: Cloud Storage & Backup Solution

2020 People’s Choice Stevie Award

Bronze Winner: Cloud Storage & Backup Solution

Gold Winner: Disaster Recovery as a Service

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 Guide

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.

Precisely Software & Data

We’re seeing storage capacity savings of 75 to 85 percent. Using QoreStor with Veeam is certainly meeting our needs.

Kyle Chapman Kyle Chapman, Lead IT Systems Engineer, Precisely Read Case Study

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.


Throughput and savings
Built-in data containerization
System performance
Role-based access control
Health and management
Immediate replication
See local and cloud object storage


See local and cloud object 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

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...
White Paper

Slash Cloud Backup Costs with Quest® QoreStor®

This paper explains how you can significantly lower cloud object storage requirements and cost for data protection. With Quest ...
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...
White Paper

DCIG Report - Choosing the Best Cloud Storage for Data Protection

Organizations have widely adopted the cloud but need help in picking the right cloud storage. This DCIG paper explains the options...
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

DCIG Report - Using the cloud for disaster recovery

Learn top 3 best practices when using the cloud for disaster recovery

Get started now

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.