During an automated data migration process in Sandbox, a database server that stores profile information ran out of disk space at 5:21am ET on June 28. This caused portions of the Sandbox API to become unavailable. We were alerted, diagnosed the issue, and freed some space to resolve the issue by 7:51am ET. Once service was restored, we permanently provisioned additional space for the server and restarted the migration process under close supervision. No production services were impacted.