Compare DRBD vs. QuantaStor in 2026

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Average Ratings 6 Ratings

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support

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Description

DRBD® (Distributed Replicated Block Device) is an open source, software-centric solution for block storage replication on Linux, engineered to provide high-performance and high-availability (HA) data services by synchronously or asynchronously mirroring local block devices between nodes in real-time. As a virtual block-device driver deeply integrated into the Linux kernel, DRBD guarantees optimal local read performance while facilitating efficient write-through replication to peer devices. The user-space tools, including drbdadm, drbdsetup, and drbdmeta, support declarative configuration, metadata management, and overall administration across different installations. Initially designed to support two-node HA clusters, DRBD 9.x has evolved to accommodate multi-node replication and seamlessly integrate into software-defined storage (SDS) systems like LINSTOR, which enhances its applicability in cloud-native frameworks. This evolution reflects the growing demand for robust data management solutions in increasingly complex environments.

Description

QuantaStor, a unified Software Defined Storage platform, is designed to scale up and down to simplify storage management and reduce overall storage costs. QuantaStor storage grids can be configured to support complex workflows that span datacenters and sites. QuantaStor's storage technology includes a built-in Federated Management System that allows QuantaStor servers and clients to be combined to make management and automation easier via CLI and RESTAPIs. QuantaStor's layered architecture gives solution engineers unprecedented flexibility and allows them to design applications that maximize workload performance and fault tolerance for a wide variety of storage workloads. QuantaStor provides end-to-end security coverage that allows multi-layer data protection for cloud and enterprise storage deployments.

API Access

Has API No

API Access

Has API Yes

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Integrations

Amazon S3 No

Docker No

Grafana Cloud No

IBM Cloud No

IBM Cloud Object Storage No

Kemp LoadMaster No

Mattermost No

Microsoft Azure No

MySQL Yes

Nagios Core No

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Explore All 1 Integration

Integrations

Amazon S3 Yes

Docker Yes

Grafana Cloud Yes

IBM Cloud Yes

IBM Cloud Object Storage Yes

Kemp LoadMaster Yes

Mattermost Yes

Microsoft Azure Yes

MySQL No

Nagios Core Yes

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Explore All 14 Integrations

Pricing Details

Free

Free Trial No

Free Version Yes

Pricing Details

$/TB based on scale

Subscription pricing is based on total raw capacity for the storage grid with greater discounting as total raw capacity increases. Software and support are bundled together with 1yr, 3yr, and 5yr subscriptions. All subscriptions include maintenance, upgrades and support.

Free Trial Yes

Free Version Yes