About Local Storage
CoreWeave's CPU and GPU Nodes are equipped with NVMe-backed ephemeral Local ephemeral storage to provide non-persistent local storage for scratch space, caching, and logs.
The amount of available local ephemeral storage depends on Node type. For information on ephemeral storage size per instance type, see Instances.
If you require a large amount (above 20Gi) of ephemeral storage, we recommend including the size requirement in the workload's resource request.
Local Storage security
Drives are encrypted in 8-drive RAID10 (RAID 1+0) arrays using an in-memory key. This key is lost on reboot, providing a crypto-shedding feature that renders encrypted data unusable, ensuring data security.
Because Node-local ephemeral storage is non-persistent, it does not persist through Node reboots, and does not require a Persistent Volume. To create a persistent File System Volume that is independent of Node status, see How to: Create a File System Volume.