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Local SSD disks are Non-Volatile Memory Express (NVMe) drives physically attached to the compute host that runs a virtual machine (VM). Local SSD disks offer low-latency storage, but they are ephemeral. When the VM is stopped or deleted, the data is lost.

Availability

Local SSD disks are available only in the uk-south1 region, on the NVIDIA® B300 NVLink with Intel Granite Rapids platform (gpu-b300-sxm) with the eight-GPU preset 8gpu-192vcpu-2768gb. Their capacity is fixed by the selected platform and preset. This configuration adds 6 × 3.84 TB of local storage.

How to add local SSD disks

Local SSD disks can be enabled when creating a VM. They are not created as a separate storage resource, and you cannot add them to an existing VM or change this setting later. You can create RAID on top of your local SSD disks, for example, to combine multiple disks into a single logical storage for higher performance or easier management.

Lifecycle and data persistence

Local SSD data persistence depends on whether the event affects the Compute VM or only the VM operating system:
  • If you reboot the VM operating system from inside the VM, for example by using sudo reboot, data is expected to persist because the Compute VM is not stopped or deleted.
  • If you stop or delete the VM in Compute, data on local SSD disks is lost.
  • If the host or a local disk fails, the Compute VM enters maintenance mode and data is lost.
When a Compute VM is stopped or deleted, the local SSD disks are released and sanitized with additional cleanup checks to clear the disks of all data before reuse.

When to use durable storage instead

Use durable storage instead of local SSD disks if you need any of the following:

See also