DBmarlin 6.9 with SQL Server Always On Availability Group monitoring and Db2 pureScale support

SQL Server Always On Availability Group and Failover Cluster monitoring with failover alerting, support for Db2 DPF and Db2 pureScale, a new charting engine and faster archiving.

DBmarlin 6.9 is out now. The main theme of this release is high availability. DBmarlin now understands SQL Server Failover Clusters and Always On Availability Groups, and can alert you when a failover happens or when an Availability Group becomes unhealthy. On the Db2 side, we've added support for multi-member configurations with Db2 DPF and Db2 pureScale. Under the hood, the charts have moved to a new library and the archiver is quicker. Here's what's new.

SQL Server Always On Availability Groups and Failover Clusters

The biggest addition in 6.9 is monitoring for SQL Server Failover Clusters and Always On Availability Groups.

Most production SQL Server estates run some form of high availability, and that brings its own problems. A failover can happen in the middle of the night. A secondary replica can quietly fall behind. If nothing tells you, the first anyone hears about it is when a user reports slow queries or, worse, when a second failure finds there was nothing healthy left to fail over to.

DBmarlin 6.9 adds a new Clusters screen to bring all of this into view. The cluster overview shows overall health, the quorum model and the number of nodes at a glance. Below that, every Availability Group is listed with its primary and secondary replicas, the listener and its status, the failover mode, and whether the replicas are synchronised. You can see straight away which groups are healthy and which need attention.

Drill into an Availability Group and you get a topology view of the listener and its replicas, showing which replica is primary, the commit mode, failover mode and connection state. The Availability replicas table shows the numbers that matter when a secondary starts to fall behind: send queue, send rate, flow control, redo queue and redo rate, along with estimated data loss and estimated recovery time. Sparklines show how the queues have changed over the selected time range, so you can tell a brief spike from a growing backlog.

All of this comes with built-in alert rules for failover events and Availability Group health, covering things like listener status and replica health. You'll know when the primary has moved or an Availability Group is no longer healthy, and the alerts appear in the Events panel next to the cluster and Availability Group they relate to. Alerts go out through your existing notification channels, such as Email, Slack, PagerDuty, ServiceNow or a webhook.

To turn it on, enable Detect Availability Groups in the Advanced settings for both the primary and secondary replicas. See the documentation for details.

Db2 DPF and Db2 pureScale support

DBmarlin now supports Db2 Database Partitioning Feature (DPF) and Db2 pureScale.

Both of these spread a single Db2 database across multiple members or partitions, which is exactly where performance problems get hard to track down. DBmarlin can now monitor these configurations, so Db2 teams running large partitioned warehouses or pureScale clusters for continuous availability get the same wait-event and SQL-level visibility that's available for single-instance Db2.

New charting engine

We've replaced HighCharts with Apache ECharts as DBmarlin's charting library.

You'll see the same charts in the same places, but they now run on a modern, open-source engine that we can build on in future releases.

Faster archiving

The archiver now batches its inserts. If you run DBmarlin across a large estate, this cuts the overhead of archiving data and helps the repository keep up as the number of monitored instances grows.

DBmarlin Cookbook in the Help menu

The Help menu now includes a link to the DBmarlin Cookbook PDF, a collection of practical recipes for getting the most out of DBmarlin. It's always one click away when you need it.

Fixes

• Fixed an error that could occur when deleting licenses.
• The Windows authentication DLL has been updated to match the current JDBC driver version.

Getting 6.9

DBmarlin 6.9 was released on 8th October 2026 and is available now. Existing customers can upgrade through the standard update process. Check the documentation for upgrade notes specific to your deployment type.

This short video showcases SQL Server Always On Availability Group monitoring and the other changes in DBmarlin 6.9.0.

👉 Upgrade today to get the latest features and improvements.

Check out the release notes for a full list of changes, including known issues.