Learn about secure multi-tenant storage management in this 13-minute conference talk that addresses the challenges of building trust in cloud environments. Explore how the OpenStack Manila service enables secure file system sharing among untrusted tenants through dedicated share servers and tenant-controlled infrastructure. Discover configuration best practices, real-world implementation examples, and common pitfalls when setting up network-attached storage with hard multi-tenancy requirements. Master day-2 operational tasks related to share servers and understand how similar security approaches can be applied to deployments without dedicated share servers, such as CephFS implementations. Presented by cloud storage experts Goutham Pacha Ravi, Carlos Silva, and Nahim Souza, who demonstrate practical solutions for balancing infrastructure cost-sharing with robust security measures in multi-tenant environments.