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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 and anomaly detection alerting capabilities to protect your backup data and ensure fast recovery.

QoreStor will accelerate Veeam backups, reduce storage by up to 93% and reduce recovery time.







Get a FREE backup storage reduction assessment

Reduce storage costs by 90% or more, regardless of the backup you use.

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 data center and cloud storage will shrink with QoreStor
Accelerate backup and data recovery from the cloud

Getting the most from the cloud

Through advanced source-side data deduplication and compression, QoreStor decreases the amount of data flowing across the network and up to the cloud, reducing storage requirements and cost while shortening backup time. When using QoreStor Cloud Tiering or Archive Tiering, recovery time is accelerated by immediately delivering local data and then only retrieving cloud data when necessary to reduce egress costs. QoreStor also provides data immutability using cloud-native locking with S3-compliant and Azure Blob storage. Cloud and Archive Tiering also support Amazon S3 Intelligent tiering where data is moved automatically within the Amazon S3 tiers as it ages.
Reduce Data Protection Storage Costs in the Cloud 02:24

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. QoreStor’s Object Direct, deduplication and compression capabilities help make low-cost cloud object storage even more cost effective.


Ransomware Prevention

Ransomware Protection

QoreStor helps you fight ransomware and other cyber-attacks by providing immutable backup storage. Also, any workflows, like direct to object storage backups, that use S3-comptible storage can be made immutable via object locking and versioning control. QoreStor cloud-tiering may also be made immutable when using RDA-based backup, like NetVault, vRanger and Bridgehead. You can also set policies to keep any deleted backup data that was not made immutable, for a defined retention period in the QoreStor immutable recycle bin. See the QoreStor Interoperability Guide for supported backup solutions.
Anomaly Detection

Anomaly Detection

QoreStor now includes increased ransomware protection with deep anomaly detection capabilities. Using built-in Artificial Intelligence, QoreStor learns the patterns around backup data flow and will alert to unusual data patterns. Some anomaly detection solutions only look at backup data size changes. QoreStor goes deeper, working at the storage layer.

Watch video: Understanding Anomaly Detection for Data Backup: Why it Matters

Read Datasheet: Add deep anomaly detection to your backup solution

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 the Cloud

Use QoreStor in the cloud to significantly reduce storage costs and best leverage object storage.
QoreStor Software Defined Secondary Storage 01:48

Gain faster backups and reduce storage costs by up to 93%

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

Key features

Best-in-class data deduplication

Lower on-prem and cloud backup storage requirements and cost up to 93%

Hardware and software agnostic

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

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.

Object locking & versioning control

Makes backup applications that use S3-compatible object storage immutable to protect data against ransomware and other cyber-attcks.

Cloud lock

Uses cloud-native locking for immutability when using Cloud Tiering or Archive Tiering.

Cloud-tier storage

Simplify long-term data retention, reduce storage cost and gain fast recovery. May be used with multiple clouds to separate backup data storage or move cloud-tiered backup data from one cloud to another.

Archive-tier storage

Send backup data to low-cost ‘cold’ cloud storage (AWS Glacier and Azure Archive) for long-term retention.

S3 Intelligent Tiering

Data is moved automatically within Amazon S3 tiers as it ages.

Cloud reader

Used to recover cloud tier data if the QoreStor server (on-prem or in the cloud) becomes unavailable.

Backup acceleration

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

Secure Connect with built-in protocol accelerators

Ensure backups complete, even over slow and unreliable WAN connections

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.

Fast and powerful replication

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

Data security

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

Multi-Factor Authentication (MFA)

SAML-based user identity authentication supporting MFA with external identity providers OneLogin, Azure and Okta.

Role-based user access

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

Anomaly Detection

Further enhances ransomware protection for backup data by providing automated alerting to anomalous data operations.
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. iconQoreStor Interoperability Guide
logo Veeam-Ready

Accelerate your Veeam backups significantly while reducing backup storage up to 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.


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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.