# Nebius: InfiniBand performance degradation

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-05-13 18:45 UTC · Resolved: 2026-05-13 21:05 UTC · Duration: 2.3 h
- Updates: 2 · Affected components: Compute Cloud, UK-SOUTH1 - Compute Cloud
- [Vendor status page: https://stspg.io/yhbnq1xpgq09](https://stspg.io/yhbnq1xpgq09)
- [Company: Nebius](https://rewindex.com/company/nebius.md)

## Timeline of updates

- **investigating** 2026-05-13 18:45 UTC: We are investigating reduced InfiniBand fabric performance affecting GPU workloads in the uk-south1 region. Customers may observe lower throughput and slower distributed training jobs.
- **resolved** 2026-05-13 21:05 UTC: This incident has been resolved.


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Canonical: https://rewindex.com/company/nebius/incidents/m5xds61fs8z3 · Markdown: https://rewindex.com/company/nebius/incidents/m5xds61fs8z3.md · JSON: https://rewindex.com/api/v1/companies/nebius/incidents/m5xds61fs8z3 · Generated 2026-10-19T23:15:47.634Z