Manage Volumes

Volumes are block storage that you attach to instances.

Key features

• List view: View all volumes with status, size, and attachment information
• Search and filter: Find volumes by name, ID, status, and other attributes
• Detail view: Review volume metadata, snapshots, and backups
• Transfer support: Transfer volume ownership between projects

Search and toolbar

The area for searching the list, exporting CSV, and running bulk actions on selected rows.

No.	Feature	Item	Description
2-1	Search	Attribute search box	· Filters the list by attributes such as name, ID, and status.
2-2	Export	Download CSV	· Exports the current list as a CSV file.
2-3	Bulk action	Delete	· Deletes the selected items (a confirmation modal appears).

Create a volume

Creates a new block storage volume.

1. Click Create volume at the top right of the Volumes list.
2. Enter values in the order below, moving on with Next.

Step	What you enter
Basic information	Volume name (required, up to 255 characters), description (optional)
Source	Choose Blank volume, Image, or Volume Snapshot. If you choose an image or snapshot, the volume is created with its contents.
Configuration	Choose a Volume Type from the list and enter the capacity (GiB). The allowed capacity range is shown under the field. If you need encryption, choose an encrypted volume type. When creating from an image or snapshot, the capacity must be at least the minimum the source requires.

3. Check the volume count and capacity quotas in the summary on the right, then click Create. Once the status becomes Available, the volume can be attached to an instance.

Accept a volume transfer

Accepts a volume transferred by another tenant, using the transfer ID and key.

This feature lets you receive a volume handed over by another tenant. You need the transfer ID and auth key that are issued when the sender creates the transfer.

Sender

1. From the action menu or the detail page of the volume to send (in Available status), click Create transfer.
2. Enter a transfer name and create the transfer. The transfer ID and auth key are displayed; pass both values to the recipient.
3. Until it is accepted, the volume is in the Awaiting transfer state. In this state Cancel transfer replaces Create transfer in the action menu, and the only actions you can use are Cancel transfer and Boot setting. Snapshot, backup, clone, edit, extend, change type, and delete are disabled, and Create image, Attach instance, and Restore from snapshot do not appear in the menu.

Recipient

1. Click Accept volume transfer at the top right of the Volumes list.
2. Enter the Transfer ID and Auth key you received, then click Accept.

This cannot be undone

Once accepted, the volume moves to the recipient's tenant and ownership cannot be reverted.

List

A table that shows block storage volumes with their status, size, type, and attachment target.

No.	Feature	Item	Description
5-1	List columns	Status	The volume status (Available, In-use, and so on).
		Name	The volume name and ID.
		Size	The volume size.
		Type	The volume type (DEFAULT and so on).
		Disk tag	The disk tag (OS_DISK or DATA_DISK).
		Attached to	The instance the volume is attached to.
		Created at	The creation date and time.
		Description	The description.
		Bootable	Whether the volume is bootable.
		Encryption	Whether the volume is encrypted.
		Action	The menu that opens from the button at the end of the row: the groups Data protection (create a snapshot or backup, clone, restore from snapshot) · Operate (create instance, create image, attach to/detach from an instance, boot setting) · Configuration (edit, extend, change type), plus Delete · Create transfer (transfer to another tenant).

More volume actions

In the list, click the Action button at the end of a volume row to see the actions by group. Hover over a group to open its actions. More actions on the detail page has the same groups.

The menu depends on the volume status. Actions you cannot use are shown disabled or do not appear in the menu at all.

Group	Action	What it does and what you enter	Availability
Data protection	Create Volume Snapshot	Saves the volume's current state as a snapshot. Snapshot name, description	Available, In-use
	Create Volume Backup	Stores the volume in the backup service. Backup name, description, backup mode (Full backup / Increment backup)	Available, In-use
	Clone volume	Creates a new volume with the same contents. New volume name, description, capacity (at least the source size)	Available, In-use
	Restore from snapshot	Choose one of this volume's snapshots to return the volume contents to that point in time.	Available
Operate	Create instance	Goes to the creation screen for an instance that boots from this volume.	Available and bootable
	Create image	Registers the volume contents as an image. Image name, disk format (default RAW)	Available
	Attach instance	Choose an instance from the list to attach the volume to. Once attached, it appears as an additional disk inside the instance.	Available
	Detach	Detaches the volume from the instance. Services using this volume may be interrupted.	In-use (except OS disks)
	Boot setting	Changes whether the volume is bootable. A volume set to non-bootable cannot be used as the boot source of a new instance.	Available, Error, Awaiting transfer (except OS disks)
Configuration	Edit	Volume name, description	Available, In-use, Error
	Extend volume	New capacity (GiB). It can only be increased, not reduced.	Available
	Change Volume Type	Choose the new volume type. It may take some time, and it is safer to stop writes on the instance before the change.	Available
(no group)	Delete	Permanently deletes the volume. This cannot be undone.	Available, Error (disabled for In-use and Awaiting transfer)
(no group)	Create transfer	Hands the volume over to another tenant. See Accept a volume transfer.	Available
(no group)	Cancel transfer	Cancels the transfer you created and returns the volume to Available.	Awaiting transfer

The volume snapshot, backup, clone, and extend dialogs also show the remaining quota.

OS disk restriction

A volume used as an instance's OS disk (Disk tag OS_DISK) has no Operate group in its action menu, and Delete is disabled. To detach or delete it, delete the instance first. Snapshot, backup, clone, and edit are still available.

Volume details

Click a volume name in the list to open its detail page. The top has a Delete button and More actions (plus Create transfer when the volume is Available), followed by a summary of the status, ID, size, Origin, and creation time.

Tab	Contents	What you can do
Details	Basic information: volume name, description, availability zone, bootable Attachments: the attached instance Specifications: size, volume type, encryption, IOPS, bandwidth	Edit the name and description with Edit at the right of Basic information; click the instance name to open its details
Volume Snapshots	Snapshots created from this volume. Columns: status, name, size, creation time	Create with Create Snapshot; create volume, edit, and delete from the row menu
Volume Backups	Backups created from this volume. Columns: status, name, backup mode, size, creation time	Create with Create Volume Backup; Create volume, Restore backup, edit, and delete from the row menu. Create volume and Restore backup are available only while the backup is Available.

For the difference between snapshots and backups and the details of each action, see Manage Volume Snapshots and Manage Volume Backups.