[{"id":"IL-0133","title":{"en":"A storm shut down cooling at Nebius's us-central1 data center, and a disk hot-plug bug kept Managed Kubernetes control planes down for hours after power returned","ko":"폭풍으로 데이터센터 냉각이 멈춰 us-central1 리전 전체가 내려갔고, 디스크 핫플러그 버그로 Managed Kubernetes 컨트롤 플레인 약 140개의 복구가 길어졌다."},"org":"Nebius","org_slug":"nebius","date":"2026-08-19","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0133","shared_components":["datacenter-facility","infiniband"]},{"id":"IL-0023","title":{"en":"A training run crashed with an NCCL timeout after one InfiniBand port went down once and recovered","ko":"InfiniBand 포트 하나가 한 번 내려갔다 복구되면서 7시간째 돌던 학습 작업이 NCCL 타임아웃으로 죽었다"},"org":"Databricks","org_slug":"databricks","date":"2026-07-01","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0023","shared_components":["infiniband"]},{"id":"IL-0025","title":{"en":"Failed boots, InfiniBand link flapping, NCCL hangs and throughput sags while bringing up a 4,088-GPU H100 training cluster","ko":"H100 4,088개 클러스터를 구축하는 동안 InfiniBand 배선 오류, 링크 플래핑, GPU 와 PCIe 하드웨어 결함이 학습을 멈추거나 늦췄다"},"org":"Imbue","org_slug":"imbue","date":"2024-06-25","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0025","shared_components":["infiniband"]},{"id":"IL-0135","title":{"en":"A power source switch during UPS maintenance cut power to a row of GPU servers and shut down Crusoe Cloud VMs in us-northcentral1","ko":"UPS 를 바이패스 모드로 둔 정기 점검 중 전원이 예비 전원으로 넘어가면서 데이터센터 한 열이 정전됐고, 그 열의 GPU VM 이 모두 꺼졌다."},"org":"Crusoe Cloud","org_slug":"crusoe-cloud","date":"2023-11-15","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0135","shared_components":["datacenter-facility"]},{"id":"IL-0126","title":{"en":"The OPT-175B training run restarted more than 40 times in two weeks as cloud GPU nodes failed with ECC errors, replacement nodes came back faulty, and checkpoint downloads hung","ko":"OPT-175B 학습이 클라우드 노드의 ECC 메모리 오류, 같은 결함을 안고 돌아온 교체 노드, 멈추는 체크포인트 다운로드 때문에 2주 동안 40번 넘게 재시작했다."},"org":"Meta AI","org_slug":"meta-ai","date":"2021-12-03","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0126","shared_components":["infiniband"]}]