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Block storage

Store data on a cloud disk separate from your server

A Cloud Disk is a virtual disk created separately and attached to a server. Your data stays in place if you replace or delete the server.

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  • Pay by the hour for the time you use
  • Estimate costs before provisioning
  • Tehran data centers
Project disksExample
web-01Cloud server
Boot disk included with the server
  • data-01Attached
    100GB
  • archiveDetached
    500GB

Disk capacity can only increase; shrinking is not supported.

Estimate disk costs before provisioning.Pricing calculator
Disk management

Attach, detach and expand

Manage disks from the panel without creating a new server for any of these operations.

  1. Create a disk

    Choose a name and size. New disks start at 25 GB.

  2. Attach to server

    Attach the disk to a server in the same project, then format and mount it from the operating system.

  3. Expand

    When space runs low, expand the existing disk up to 1024 GB and extend the filesystem in the operating system. Disks cannot be shrunk.

  4. Detach

    Detach the disk and optionally attach it to another server in the same project. A disk can only be deleted after detaching it.

Some deployment locations require stopping a server before attaching or detaching disks; the panel will tell you. A boot disk is created and deleted with its server and cannot be detached.

Data independent of the server

The server goes; the disk and data stay

Cloud disks are created separately from servers. Data disks remain when a server is deleted or replaced.

Data remains until you delete the disk itself. Boot disks are deleted with the server, so keep important data on a data disk. Detached disks remain in the project and continue to be billed until deleted.

  1. The server is replaced or deleted

    Attached data disks are detached, not deleted.

  2. The disk stays in the project

    Data remains on the disk, which stays in the project's disk list.

  3. Attach it to a new server

    Connect the same disk to the new server and continue with the same data.

Snapshots and backups

Two ways to recover disk data

Snapshots provide a quick return to a point in time; backups keep a separate copy. Create either from the panel whenever needed.

Snapshot

Snapshot

Capture a disk's state at a point in time. Take a snapshot before sensitive changes such as software upgrades, then restore to that moment if something goes wrong.

  • Create a snapshot
  • Restore a disk snapshot
  • Delete old snapshots
About snapshots

Backup

Backup

A copy separate from the disk for longer retention. Restore backup data to the same disk whenever necessary.

  • Create a backup
  • Restore to the same disk
  • Delete old backups
About backups

You can also take snapshots or backups of several disks together.

Comparison

Cloud Disk or Object Storage?

Both store data separately from servers. Disks attach to servers, while Object Storage provides access keys for different applications.

Choose Cloud Disk if

Block Storage
  • Your server needs an additional data disk
  • Your database or application continuously reads and writes disk data
  • You want data to survive server replacement or deletion

Choose Object Storage if

Object Storage
  • You have many files such as photos, videos, backups or logs
  • Several applications need separate access keys for the files
  • You want to upload and download files with S3-compatible tools
About Object Storage
Features

What is included

The main capabilities of Block storage at a glance.

  • Independent disks

    Create and manage disks separately within a project.

  • Attach to server

    Attach the disk to your chosen server in the same project.

  • Backup

    Back up and snapshot disks so you can restore data whenever necessary.

Use cases

Who it is for

  • Application data
  • Service files
  • Database files
User guide forBlock storage
Recommended

Related services

Services commonly used alongside Block storage.

Frequently asked questions

Before you start

What problem does Block storage solve?

Data stored only on the server's own disk is at risk if the server fails or is deleted.

What is Block storage suitable for?

Block storage supports use cases such as Application data, Service files, Database files. The right choice depends on your project's technical and operational requirements.

How do I get started with Block storage?

Read the product guide and estimate costs in the calculator, then create the service in your chosen project in the client panel.

Get started with Block storage

Register, estimate costs before provisioning and pay hourly for the time you use the service.

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