Migrate platforms without the big bang.
Whether you are leaving QRadar before sunset, escaping Splunk renewal shock, or consolidating multiple SIEMs, a pipeline layer lets you transition one data source at a time with zero compliance gaps.
The migration problem
Traditional SIEM migrations are all-or-nothing projects. Months of planning, parallel infrastructure, double licensing costs during the transition, and the risk of a compliance gap if data stops flowing to the old system before the new one is ready.
IBM sold QRadar SaaS to Palo Alto and put the on-premises version into maintenance-only mode. Forrester explicitly advises against new QRadar purchases. For the thousands of organizations still running QRadar, the clock is ticking. And every other platform has its own migration pressures: Cisco acquiring Splunk, Sentinel forcing a Defender portal migration by 2027, Elastic shifting from self-managed to cloud.
The question is not whether you will migrate. The question is whether you can do it without disruption.
6-18mo
Typical SIEM migration timeline without a pipeline layer
2x
Licensing cost during parallel-run migration periods
100%
Of data must flow to the compliance archive throughout
How Cribl enables gradual migration
Cribl Stream acts as the routing layer between your data sources and your SIEM destinations. During a migration, it routes the same data to both the old and new platforms simultaneously. You transition one source at a time, validate on the new platform, and decommission the old route when ready.
Because Cribl normalizes data in flight, the new SIEM receives clean, pre-parsed events from day one. No custom ingest pipelines, no format translation, no rewriting detection rules from scratch.
- Route to old and new SIEMs simultaneously from a single collection layer. No duplicate forwarders.
- Transition source by source at your own pace. Decommission old routes when validation passes.
- Preserve 100% of raw data in S3 throughout the migration. The compliance archive never has a gap.
- Normalize data to the new platform schema (ASIM, ECS, CIM) before it arrives. Cleaner data from day one.
- Compare detection fidelity between platforms in parallel before committing to the cutover.
How Logmetry manages migrations
We treat every migration as a controlled, phased rollout. No big bang, no data loss, no timeline pressure.
Frequently asked questions
Can I run two SIEMs in parallel without double the collection infrastructure?
Yes. Cribl collects once and routes to multiple destinations simultaneously using its multi-destination routing with the Final flag. One collection layer feeds both platforms.
How do I handle compliance during the migration?
All raw data routes to S3 or Azure Blob throughout the entire migration, independent of which SIEM is active. The compliance archive is never interrupted. Cribl Search queries the archive for historical investigations.
What about QRadar specifically?
QRadar had good multi-tenant capabilities that are now stranded on a sunset platform. Cribl preserves that multi-tenant routing in the pipeline layer so it works with whatever SIEM you choose next. We also handle the NetFlow and IPFIX sources that QRadar processes natively.
How long does a migration take with Cribl?
The parallel-run period is typically shorter because validation happens incrementally. Most organizations complete the transition in three to six months instead of the twelve to eighteen months typical for a traditional rip-and-replace.
Ready to explore this further?
Let's discuss how this applies to your environment.
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