Dealing with Very Large Data in IRIS 2026.1
What’s New in InterSystems IRIS and IRIS for Health 2026.1
InterSystems IRIS 2026.1 is here, and it’s packed with powerful enhancements designed to help organizations scale their data management like never before. Whether you’re dealing with the operational aspects of managing massive datasets or looking to optimize storage costs, this release brings a host of features to simplify life with your data and meet the growing challenges of very large datasets.
Extended Database Size
We have increased the maximum database size from 32 terabytes (TB) well beyond the horizon, to a staggering 8 petabytes (8 PB, with 8k blocks), thanks to expanded block addressing. The approach we took doesn’t require disruptive migrations and transparently switches your database to the new Extended Database Size format — just a routine integrity check to keep things running smoothly. The new block number scheme is not recognized on older instances though, so we’re introducing this as an opt-in feature. Check the release notes for more details.
MultiVolume Databases
Say goodbye to unwieldy, gigantic database files. With multivolume databases (MVDB), IRIS automatically creates new physical files as your data grows, so you don’t have to worry about managing massive files or manual data placement. It’s seamless, transparent, and designed for simplicity, decoupling logical database size from physical file limits. Especially when you’re getting into the Extended Database Size described above, MVDB is a must-have feature to keep your files sane.
Table Partitioning (experimental)
This release introduces table partitioning, allowing you to split tables and indexes across multiple logical partitions using a key column (like transaction date). Partitions can be mapped to different storage tiers, making it easy to move older or less-critical data to cheaper storage. At the storage level (global structure), partitioned tables offer additional benefits such as partition pruning and reduced contention.
In 2026.1, we’ve introduced Table Partitioning as an experimental feature with full documentation, and we’re eager to hear your feedback and experiences ahead of certification for production use in the next release.
InterSystems IRIS 2026.1: A Leap Forward in Data Management
The new InterSystems IRIS is a leap in capabilities for data-driven organizations. With petabyte-scale support, automated volume management, table partitioning, and lightning-fast expansion, Release 2026.1 empowers organizations to manage larger datasets, optimize storage, and prepare for future growth — making it a must-have for modern, data-intensive applications.