Google Cloud Storage (GCS) customers experienced elevated latencies and error rates when performing upload or write operations.

Google Cloud impact

Impact

Google Cloud Storage (GCS) customers experienced elevated latencies and error rates when performing upload or write operations.

Affected product

Affected regions

Timeline

Updates newest first (times in UTC).

1. MonitoringOct 14, 2026, 7:15 AM UTC

   ## Incident Report ## Date/Time of the Issue (All time US/Pacific) **Incident First Occurrence** Incident Start: 08 October 2026 04:00 Incident End: 08 October 2026 16:30 Duration: 12 hours, 30 minutes **Incident Recurrence** Recurrence Start: 09 October 2026 04:05 Recurrence End: 09 October 2026 09:46 Duration: 5 hours, 41 minutes **Total Duration:** 18 hours, 11 minutes ## Summary On Thursday, 08 October 2026, Google Cloud Storage experienced elevated write latency and write error rates while performing upload or write operations in the us-central1 region for a duration of 12 hours, 30 minut

2. MonitoringOct 9, 2026, 4:44 PM UTC

   ## Preliminary Incident Report We sincerely apologize for the disruption this incident caused to your business. We know how much you rely on Google Cloud, and we regret the impact on your productivity. We are working to address the root cause and prevent this from occurring in the future. Please note, this information is based on our best knowledge at the time of posting and is subject to change as our investigation continues. A final Incident Report with preventative actions will be posted once our investigation is complete. If you have experienced impact outside of what is listed below, plea

3. MonitoringOct 8, 2026, 8:48 PM UTC

   **Summary** Google Cloud Storage customers are experiencing elevated latencies and error rates when performing upload or write operations **Description** We are continuing to mitigate the issue with Google Cloud Storage in the us-central1 region that began on Thursday, 2026-10-08 05:19 PDT. The initial mitigations applied by our engineering team continue to show observable improvements in error rates. Our engineering team is actively monitoring the environment and rolling out further mitigations to fully stabilize the service. We will provide an update by Thursday, 2026-10-08 16:00 PDT with cu

4. MonitoringOct 8, 2026, 7:38 PM UTC

   **Summary** Google Cloud Storage customers are experiencing elevated latencies and error rates when performing upload or write operations **Description** We are continuing to mitigate the issue with Google Cloud Storage in the us-central1 region that began on Thursday, 2026-10-08 05:19 PDT. The initial mitigations applied by our engineering team continue to show observable improvements in error rates. Our engineering team is actively monitoring the environment and rolling out further mitigations to fully stabilize the service. We will provide an update by Thursday, 2026-10-08 14:00 PDT with cu

5. MonitoringOct 8, 2026, 6:55 PM UTC

   **Summary** Google Cloud Storage customers are experiencing elevated latencies and error rates when performing upload or write operations **Description** We are experiencing an issue with Google Cloud Storage beginning on Thursday, 2026-10-08 05:19 PDT. Initial mitigations applied by our engineering team leading to observable improvements in error rates in our internal monitoring beginning 10:57 PDT. Work remains underway to roll out further mitigations. We will provide an update by Thursday, 2026-10-08 12:45 PDT with current details. **Customer Symptoms** * Customers are experiencing elevated

6. MonitoringOct 8, 2026, 6:34 PM UTC

   **Summary** Google Cloud Storage customers are experiencing elevated latencies and error rates when performing upload or write operations **Description** We are experiencing an issue with Google Cloud Storage beginning on Thursday, 2026-10-08 05:19 PDT. Initial mitigations applied by our engineering team leading to observable improvements in error rates in our internal monitoring. Work remains underway to roll out further mitigations. We will provide an update by Thursday, 2026-10-08 12:00 PDT with current details. **Customer Symptoms** * Customers are experiencing elevated latencies and error

7. InvestigatingOct 8, 2026, 6:24 PM UTC

   **Summary** Google Cloud Storage customers are experiencing elevated latencies and error rates when performing upload or write operations **Description** We are experiencing an issue with Google Cloud Storage beginning on Thursday, 2026-10-08 05:19 PDT. Our engineering team continues to investigate the issue. We will provide an update by Thursday, 2026-10-08 11:50 PDT with current details. **Customer Symptoms** * Customers are experiencing elevated latencies and error rates when performing upload or write operations. * A smaller subset of read operations may also experience increased latency a

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