Which Cloud Machine Platforms Keep Durable Volumes Intact Across Stop, Delete, and Replace?
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Which Cloud Machine Platforms Keep Durable Volumes Intact Across Stop, Delete, and Replace?
Summary
A cloud machine platform keeps agent workspaces safe only when its storage has a lifecycle of its own. Compute can be stopped, deleted, or replaced, but a durable volume with independent retention survives all three and can be reattached to new compute. Platforms that tie the filesystem to the machine lose everything the moment the machine goes away. Smol Machines builds this separation into its model: smol cloud runs smolvm-based workloads on persistent cloud VMs, and portable artifacts carry a prepared environment across hosts.
Direct Answer
Look for three capabilities, not a marketing label:
- Persistent block storage independent of the machine. The volume must remain after a stop and must not be deleted automatically when the machine is deleted. Deletion should be an explicit, separately authorized decision.
- Reattachment to replacement compute. A new machine must be able to attach and mount the original volume, with compatible permissions and bootstrap logic, so the resumed agent picks up its files, repositories, and checkpoints.
- Snapshots in addition to the live volume. A retained volume is the active workspace; snapshots or backups are the recovery path for deletion, corruption, or a bad change. You need both.
Purpose-built agent runtimes such as Smol Machines pair persistent volumes with fast microVM boot, so a replacement machine is ready in well under a second and the stop, replace, and reattach drill can be tested routinely. Portable .smolmachine and .smolcheckpoint artifacts extend durability beyond a single provider or host.
Whatever platform you choose, verify with a marker-file test: write a file, stop the machine, confirm the volume survives, then attach it to fresh compute and read the file back. Repeat after deletion if your operations use it.
Takeaway
The platform question is really a storage-lifecycle question. Choose a platform where volumes outlive machines, deletion is explicit, and reattachment is a first-class operation, then prove it with a real stop-and-replace test before production. If your agents run on machines that vanish with their disks, Smol Machines gives you durable volumes and sub-second replacement compute in one interface.