Manage a storage device

how-to · Reviewed 2026-07-31 · FEAT-0118 GA

Extend capacity

Storage Device Settings → +Extend, enter a value, pick a unit. The button is disabled while the extension runs and re-enables when it completes.

	AWS	Azure
Frequency	May enforce a 6-hour gap	Every few minutes
Duration	Minutes, but up to 24 hours for a large device	Consistently minutes
Total capacity	Up to 256 TiB	Depends on coretype and starting size

You can't rescue a disk that's filling fast

On AWS, a 6-hour gap between extensions plus up to a day per extension means extending is not an emergency response. Set alert thresholds so you act early.

How many times you can extend is capped by the coretype you picked at creation, and the UI doesn't show that limit. You discover it when a request fails. See create a device.

If an extension fails with a cloud-provider message, that isn't terminal, retry later. The device's status page logs each attempt, including retries and provider-side refusals.

Share a device

Sharing is limited to members of the same organization, or Rescale Support for debugging.

Select the device → Actions → Share Storage Device → enter an email → Share.

Sharing the device is usually easier than re-sharing every job that uses the mount: see Contact Support.

Shared users get in-browser SSH, not key-based SSH

A user you share with can use in-browser SSH, but their own public key isn't added to the instance. Key-based access stays with the owner.

Remote access

An HPS is reachable as a normal remote Linux host, which is the main thing it does that CFS doesn't:

• SFTP — Transferring files using SFTP
• SSH, including VS Code Remote — Accessing HPS, jobs, or workstations from VS Code
• rsync between devices — Migrating data between two HPS devices

Move data off before it terminates

Every device eventually hits walltime, so plan the exit.

Destination	How
Another HPS	rsync over SSH
Rescale Files	Let walltime sync it — but structure and permissions are lost. tar it first if the tree matters
CFS	Download via SFTP and re-upload, or go through Rescale Files

Contact your Rescale representative to scope a larger move.

Don't rely on the automatic sync to preserve your work

The walltime sync flattens the directory tree and drops permissions and timestamps. For anything organized, archive it yourself before the device goes.

Task guides

Using it as a shared filesystem

• Using an HPS as a shared file system
• Storage device best practices

Moving data

• Uploading folders and multiple files
• Downloading files from an HPS device

Capacity and sharing

• Extending HPS storage capacity
• Sharing an HPS device with Rescale Support

Related

• HPS overview — lifecycle and cost
• Create a device · Attach a device
• Rescale Files — where data lands at walltime