ScaleArc for SQL Server Reviews

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Score 8.9 out of 101

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Michael Atkins profile photo
Score 10 out of 10
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We are a 24/7 SaaS company that provides a CRM to automotive companies across the globe and our need to be highly available is mission critical. As in most SaaS platforms there is always a single point of failure and that was our design on how we direct customers to there corresponding servers; this is where we need to be able to provide the highest point of availability. Prior to implementing ScaleArc, we had a very unstable environment with quite a bit of global customer impact and with the introduction (Version 1) of Availability Groups in SQL Server 2012; there was a lot of instability in the number of failovers and bottlenecks.

Since implementing ScaleArc over a year ago; we have instantly brought our availability to 99.9999%. The ability to route reads to the secondary replicas without any application changes was a huge advantage in getting ScaleArc deployed rapidly. The strength in the product is the ability to cache connections during a failover (not inflight transactions) meaning the customer would never notice there was a problem whether planned or unplanned. We've already had occasions where we have had experienced failovers and not one customer call came in :) This opened the door for daytime maintenance if necessary which is a godsend if you are DBA; less nights having to be up late the better

Simply put; ScaleArc makes me look good :)
  • Caching connections to ensure a seamless failover.
  • Automatically route reads to the secondary replicas without application changes.
  • Ability to cache queries for better end-user experiences.
  • Real-time analytics to determine where your bottlenecks are and any queries that could be candidates for caching.
  • Ability to firewall (block) an incoming query to avoid further performance issues and vulnerabilities from attacks such as SQL injections.
  • The fact that the analytics is included in the product; it really is hard to recommend this. However; I would recommend the analytics be a little more easier to use and more intuitive for drilling down to the source of the problem.
It is best suited for SaaS applications where uptime and availability are a priority to the business.
Read Michael Atkins's full review

ScaleArc for SQL Server Scorecard Summary

About ScaleArc for SQL Server

ScaleArc for SQL Server (other versions available for MySQL and Oracle) is database load balancing software that promises to increase uptime, performance, and scale out for applications leveraging the Microsoft SQL Server database.

The software drops in between applications and databases and directs queries into the database on behalf of the app - it looks to the app as if it were the database, and it looks to the database as if it were the app.

The software lets organizations leverage modern, scaled out databases with no application changes. It automatically supports scale out, performing read/write split dynamically, so users don't have to code read-intent strings into the application.

It avoids app downtime from database outages, both planned and unplanned. During a database failover, ScaleArc software queues inbound queries, waiting for the secondary to take over as the new primary, and then drains the queue in a FIFO manner, so apps see delay but not errors. Users can invoke the same functionality to force a switchover, enabling them to achieve zero downtime maintenance.

App-transparent caching speeds performance with no app changes, and the software also supports connection management for greater database server efficiency.

ScaleArc for SQL Server Features

Has featureapp-transparent failover
Has featureswitchover for zero-downtime maintenance
Has featureautomatic read/write split
Has featuredynamic load balancing
Has featurequery caching
Has featurereal-time and historical analytics
Has featurequery firewall

ScaleArc for SQL Server Screenshots

ScaleArc for SQL Server Integrations

Microsoft SQL Server AlwaysOn

ScaleArc for SQL Server Competitors


Has featureFree Trial Available?Yes
Does not have featureFree or Freemium Version Available?No
Does not have featurePremium Consulting/Integration Services Available?No
Entry-level set up fee?No

ScaleArc for SQL Server Customer Size Distribution

Small Businesses (1-50 employees)
Mid-Size Companies (51-500 employees)
Enterprises (> 500 employees)

ScaleArc for SQL Server Support Options

 Free VersionPaid Version
Video Tutorials / Webinar
Live Chat

ScaleArc for SQL Server Technical Details

Deployment Types:On-premise
Operating Systems: Linux
Mobile Application:No