Render Persistent Disks

Persistent disks preserve files written beneath a service's configured mount path across deploys and restarts.

Before designing, configuring, resizing, transferring data to, snapshotting, restoring, or troubleshooting a disk, read references/persistent-disks.md.

When to Use

• Storing file uploads, CMS media, or user-generated content
• Running a self-managed database (MySQL, MongoDB, ClickHouse) on Render
• Deploying stateful infrastructure (Elasticsearch, Kafka, RabbitMQ, Mattermost)
• Understanding why scaling is blocked or zero-downtime deploys are disabled
• Restoring data from a disk snapshot

For managed databases, prefer Render Postgres (render-postgres) or Key Value (render-keyvalue) over self-managed alternatives on disk.

Core Decisions