Deliver redundant enterprise-scale workloads on horizontally federated MS-SQL

Scale MS-SQL horizontally across any number and class of servers with real-time federation

Microsoft's focus with OOB solutions within MS-SQL has been High Availability - not scale. SQLFed is most like Peer to Peer Replication - where many servers can operate RW against the same data, with changes shared between nodes in near-real-time - but with support for many more servers, at a far lower cost. With SQLFed, you can service very large workloads with commodity server hardware by federating horizontally using Express, Web or Standard licensing.


Schedule a Demo Feature and Cost Comparison

Any MS-SQL Edition or Version

Federate any SQL Server edition or version - including Express. Mix and Match editions, versions and server capabilities

Near-Real-time Synchronization with Asynchronous Commit

Easily support 10,000+ Transactions per Minute (TPM) with 300ms synchronzation times. Span your workloads seamlessly across servers and datacenters.

Free to Use

Free for research purposes, testing and non-commercial use.

Enterprise plan available for commercial use.

Source-Available Model

Fully based in MS-SQL tables, triggers, stored procedures and jobs - which you can see, edit and directly manage.

24/7 Support is available to all Enterprise clients

Support includes implementation, customization and troubleshooting services.

Span Diverse Geographies and Link Speeds

Easily federate across geographically diverse datacenters, regardless of link speed and quality. Span between On-Prem, Private and Public Cloud.

Compare SQLFed to Clustering, Always On and Replication

SQLFed's focus is horizontal scaling, with all the add-on high availability benefits of having many SQL nodes share the same data with a sub-300ms RPO. SQLFed is simple to install and simple to manage, with a very low cost to run.

  • Distribute your MS-SQL workloads across multiple nodes, all of which are RW to the exact same data
  • A simple high availability solution, right out of the box
  • Federate reliably across slow and sketchy links - including offline operation
  • Add, remove, patch and update nodes - and make schema changes - with no interruption (no quiescing required)
  • Support for IDENTITY columns
  • Support for Express, Web, Standard and Enterprise MS-SQL
  • No partitioning or sharding required
Max Active RW Nodes Total RW+RO Nodes Supported MS-SQL License Cost
each 16 Core Xeon server		 Synch / Asynch Failover Offline Operation Quirks
SQLFed No limit No limit Asynch Manual YES
Clustering (WSFC / FCIs) - Standard 1 2 $63k Synch Automatic NO Shared storage is a single point of failure
Clustering (WSFC / FCIs) - Enterprise 1 16 $242k Synch Automatic NO Shared storage is a single point of failure
Always On - Standard 1 2 $63k BOTH Automatic YES
Always On - Enterprise 1 9 $242k BOTH Automatic YES
Mirroring 1 2 $242k BOTH Automatic NO Deprecated
Log Shipping 1 No limit Asynch Manual YES
Replication - Peer to Peer - Enterprise 15 15 $242k Asynch Manual NO IDENTITY columns are not supported
Replication - Transactional - Standard 1 No limit $63k Asynch Manual YES
Replication - Transactional - Enterprise 1 No limit $242k Asynch Manual YES
Replication - Merge - Standard 500 500 $63k Asynch Manual YES Each subscriber requires a different data partition
Replication - Merge - Enterprise 500 500 $242k Asynch Manual YES Each subscriber requires a different data partition
Replication - Snapshot - Standard 1 No limit $63k Asynch Manual YES Interval updates, not continuous
Replication - Snapshot - Enterprise 1 No limit $242k Asynch Manual YES Interval updates, not continuous