Docs: Disks

Mon, 01 Jan 0001 00:00:00 +0000

Disks are storage files for VMs. By location, disks are classified as local disks and cloud disks:

Local disk: Resides on the same host as the VM. Creating, attaching, and detaching from the disk list are not supported.
Cloud disk: Resides in the same availability zone as the VM. Creating, attaching, detaching, resizing, deleting, and related operations are supported.

Entry: On the cloud management platform, click the navigation menu in the upper left, then in the left sidebar click “Resource Management / Compute / Disks / Disks” to open the Disks page.

List fields

Field	Description
Name	Disk name; click the name to open the disk details page
Tags	Tags bound to the disk; BingoCloud does not support editing tags
Capacity	Disk capacity; sortable. On VMware, the provisioning method is also shown (such as thick provision or thin provision)
Max IOPS	Maximum IOPS of the disk; shows `-` when empty
Format	Disk format (such as qcow2 or raw)
Storage type	Storage type of the disk (such as local storage or shared storage)
Disk type	System disk or data disk
Attached	Shows the number of unattached disks; click to jump to the associated VMs page
VM	Name and status of the VM the disk is attached to; click to open VM details
Mount point	Mount point of the disk in the VM (such as vda or vdb); shows `-` when empty
Storage	Name of the storage that owns the disk; supports copy
Created at	Creation time of the disk. Hidden by default in the list; enable via column settings
Platform	Cloud platform of the disk
Region	Region where the disk resides
Billing method	Billing type of the disk (pay-as-you-go / subscription)
Status	Current status of the disk
Project	Project that owns the disk
Cloud account	Cloud account of the disk
Medium type	Storage medium type of the disk (such as SSD or HDD)
Auto reset on shutdown	Whether auto reset on shutdown is enabled (Yes / No)

Note: The list supports filtering by ID, name, description, status, storage, VM, disk type, attached or not, platform, project, domain, cloud account, region, medium type, and VM status above the list.

Create disk

Create a disk. A newly created disk must be attached to a VM before it can be used normally.

On the create disk page, click the “On-premise”, “Private Cloud”, or “Public Cloud” tab at the top to switch and create disks on different platforms.

Create an on-premise disk

Before creating an on-premise disk, configure shared storage such as Ceph, NFS, or GPFS.

On the Disks page, click the “All” or “On-premise” tab at the top, then click “Create” above the list to open the create disk page.
Configure the following parameters:
- Specify project: Administrators and domain administrators must specify the project that owns the disk when creating a disk.
- Region: Select the region and availability zone.
- Name: Set the disk name.
- Notes: Notes for the disk.
- Disk: Select the disk type and set the disk capacity; specifying block storage is supported.
- Specify VM: Select a specific host–VM for the disk.
- Disk encryption: Disabled by default. When enabled, the disk is encrypted with the selected key.
- Tags: Binding tags to the new disk is supported.
Click “OK” to complete the operation.

Only OneCloud supports specifying a VM.

In the admin console view, you can select a host and a specific VM under that host when creating a disk. In the domain admin console view and project view, you can only select a specific VM when creating a disk.

Create a private cloud disk

Before creating a private cloud disk, ensure a cloud account for the corresponding platform exists.

On the Disks page, click the “Private Cloud” tab at the top, then click “Create” above the list to open the create disk dialog.
Configure the following parameters:
- Specify project: Administrators and domain administrators must specify the project that owns the disk when creating a disk.
- Region: Select the region and availability zone. The region determines the private cloud platform and the private cloud account used to create the disk.
- Name: Set the disk name.
- Notes: Notes for the disk.
- Disk: Select the disk type and set the disk capacity.
- Disk encryption: Disabled by default. When enabled, the disk is encrypted with the selected key.
- Tags: Binding tags to the new disk is supported.
Click “OK” to complete the operation.

Create a public cloud disk

Before creating a public cloud disk, ensure a cloud account for the corresponding platform exists.

On the Disks page, click the “Public Cloud” tab at the top, then click “Create” above the list to open the create disk dialog.
Configure the following parameters:
- Specify project: Administrators and domain administrators must specify the project that owns the disk when creating a disk.
- Region: Use platform, region, and availability zone to determine the platform and availability zone of the disk.
- Name: Set the disk name.
- Notes: Notes for the disk.
- Disk: Select the disk type and set the disk capacity.
- Disk encryption: Disabled by default. When enabled, the disk is encrypted with the selected key.
- Tags: Binding tags to the new disk is supported.
- Advanced configuration: Click the “Advanced configuration” link to expand advanced options.
  - Specify cloud subscription: Specify the cloud subscription used to create the disk.
Click “OK” to complete the operation.

When creating a disk on Tencent Cloud, the disk capacity must be a multiple of 10. Otherwise creation fails.

Resize disk

Expand the size of a system disk or data disk to meet growing data needs. Disk resize does not support reducing disk capacity. Single and batch resize are supported.

On the Disks page, click “Resize” in the Actions column for the disk to open the resize dialog.
Adjust the disk capacity, then click “OK”.

Resize limits by platform:

Platform	Resize limits
OneCloud	No requirements
VMware	System disks support resize only when stopped; data disks have no requirements. If the disk already has an instance snapshot, resize is not allowed
ZStack	The VM the disk is attached to must be running or stopped
OpenStack	Data disks only
Alibaba Cloud	Data disks only; the VM the disk is attached to must be running or stopped
AWS	No requirements
Azure	The VM the disk is attached to must not be running
Tencent Cloud	Data disks only
Huawei Cloud	The VM the disk is attached to must be running or stopped
UCloud	The VM the disk is attached to must be stopped

Note: BingoCloud and SangFor do not support resize.

Attach

Attach a disk that is waiting to be attached to a VM so the VM can use it.

On the Disks page, click “More” in the Actions column for the disk, then select “Attach”.
After selecting a VM, click “OK”.
After the disk is attached successfully, log in to the VM to partition and format the attached disk and mount the new partition.

Limits:

The disk status must be ready before attach.

An already attached disk cannot be attached again.

BingoCloud and SangFor do not support attach.

Detach

Remove the association between a data disk attached to a VM and the VM. A detached disk can be attached to another VM. Only data disks can be detached.

For Linux VMs, wait until the umount command completes successfully inside the VM before detaching the disk.

On the Disks page, click “More” in the Actions column for the disk, then select “Detach”.
Confirm the operation.

Limits:

System disks cannot be detached.

Unattached disks cannot be detached.

Disks attached to multiple VMs cannot be detached.

Non-portable disks (portable=false) cannot be detached.

Disks that are migrating cannot be detached.

BingoCloud and SangFor do not support detach.

Create snapshot

Back up disk data. After a failure, a disk with a snapshot can be restored to the state before the snapshot.

Disks on VMware and UCloud do not support creating snapshots.

Snapshots cannot be created when the status of the VM that owns the disk is abnormal or when the disk is not attached to a VM.

Disks that are migrating cannot create snapshots.

BingoCloud and SangFor do not support creating snapshots.

On the Disks page, click “More” in the Actions column for the disk, then select “Create snapshot”.
Set the snapshot name, then click “OK” to create the snapshot.

Set auto snapshot

Set an auto snapshot policy for a disk. After configuration, the disk periodically creates automatic snapshots at the times specified by the auto snapshot policy.

On the Disks page, click “More” in the Actions column for the disk, then select “Set auto snapshot”.
Enable auto snapshot:
1. Check enable auto snapshot and select an auto snapshot policy name. If no suitable policy exists, click the “Create custom snapshot policy” link on the right, configure parameters in the create policy dialog, then click “OK” to create an auto snapshot policy.
2. After selecting the auto snapshot policy, click “OK”.
Disable auto snapshot: Check disable auto snapshot, then click “OK”.

Limits:

Only disks on OneCloud, Alibaba Cloud, and Tencent Cloud support setting auto snapshots.

The disk status must be ready.

VMware and China Telecom Cloud do not support this operation.

On OpenStack, only local storage and iSCSI storage types are supported.

On UCloud and RockBase, only the CLOUD_NORMAL storage type is supported.

The disk must already be attached, and the VM status must be running or normal.

BingoCloud, SangFor, ZettaKit, UIS, and CAS do not support this operation.

Auto reset on shutdown

Set an auto reset on shutdown policy for a disk. Supported only on OneCloud (KVM) when the VM status is ready.

On the Disks page, click “More” in the Actions column for the disk, then select “Auto reset on shutdown”.
In the dialog, set the auto reset policy, then click “OK”.

Change driver

Change the disk driver. A VM restart is required for the change to take effect. Visible only in the admin console.

Limits:

Supported only on OneCloud (KVM).

The disk must already be attached to a VM.

The VM status must be ready.

On the Disks page, click “More” in the Actions column for the disk, then select “Change driver”.
Modify the following parameters:
- Cache mode: Set the disk cache mode, including none, writethrough, writeback, and others.
  - none: Access the host disk directly.
  - writethrough: Do not use any cache; write directly to disk. Success is returned only after data is written to disk. Data consistency is preserved, but write speed is slow because disk writes are slow, while read speed is relatively high. No flush is required.
  - writeback: Success is returned after data is written to the host page cache. The page cache then merges data and writes it to disk. The guest disk controller is aware of the back cache, so to keep data consistent (newer data on the guest side, older data on the disk side), the guest sends flush instructions when needed to force cached data to disk.
- Disk driver: Set the disk driver, including virtio, ide, scsi, and pvscsi.
Click “OK” to complete the operation.

Change project

Change the project of an unattached disk.

Limits:

Not supported in project mode.

Attached disks cannot change project; detach first and retry.

BingoCloud, SangFor, ZettaKit, UIS, and CAS do not support this operation.

On the Disks page, click “More” in the Actions column for the disk, then select “Change project”.
Select the domain and project, then click “OK”.

Sync status

Get the current status of a disk.

Sync a single disk

On the Disks page, click “More” in the Actions column for the disk, then select “Sync status” to sync the disk status.

Batch sync status

In the disk list, select one or more disks, click “Batch actions” above the list, then select “Sync status” to batch sync status.

Note: VMware and SangFor do not support sync status. During batch sync, if the selection includes a VMware disk, the entire operation is disabled.

Set tags

Batch set tags for disks.

In the disk list, select one or more disks, click “Batch actions” above the list, then select “Set tags”.
In the set tags dialog, configure tags, then click “OK”.

Note: BingoCloud does not support editing tags.

Delete

Single and batch delete of disks are supported. A disk can be deleted only when it is not attached.

On OpenStack, disks and Ceph disks that have snapshots cannot be deleted.

Subscription disks cannot be deleted.

Alibaba Cloud, Tencent Cloud, Huawei Cloud, AWS, Azure, Google, ZStack, ZettaKit Cloud, OpenStack, OneCloud, and other platforms support deleting snapshots together when deleting a disk.

On Huawei Cloud, deleting a disk also deletes its disk snapshots.

On OneCloud, deleting a Ceph disk also deletes its disk snapshots.

BingoCloud and SangFor do not support delete.

Delete a single disk

On the Disks page, click “More” in the Actions column for the disk, then select “Delete” to open the confirmation dialog.
Click “OK” to complete the operation.

Batch delete

In the disk list, select one or more disks, click “Batch actions” above the list, then select “Delete” to open the confirmation dialog.
Click “OK” to complete the operation.

View disk details

This feature shows detailed information about a disk.

On the Disks page, click the disk name to open the disk details page.
The top menu on the details page supports resize, attach, detach, create snapshot, set auto snapshot, change driver, change project, sync status, delete, and other operations on the disk.
The details page includes the following tabs.

Disk information

Shows basic attributes of the disk:

Field	Description
User tags	User tags of the disk; editable (not supported on BingoCloud)
External tags	External tags of the disk; editable (not supported on BingoCloud)
Platform	Cloud platform of the disk
Billing method	Billing type of the disk
Capacity	Disk capacity
Provisioning	Disk provisioning method
Max IOPS	Maximum IOPS of the disk
Throughput	Disk throughput
Disk type	System disk or data disk
Attached	Shows the number of unattached disks
Format	Disk format
Medium type	Storage medium type of the disk
VM	Name and status of the VM the disk is attached to; click to jump
Storage	Name of the storage that owns the disk; public clouds show `-`. Hidden in project mode
Snapshot policy	Name of the associated auto snapshot policy
Auto reset on shutdown	Whether auto reset on shutdown is enabled (Yes / No)

Encryption (shown when the disk is encrypted):

Field	Description
Encryption key	Disk encryption key ID; shows “Not encrypted” if unencrypted
Encryption algorithm	Encryption algorithm (such as AES-256); shows `-` if unencrypted
Encryption key user	User/domain that owns the key; shows `-` if unencrypted

Snapshots

View snapshot information on the disk and manage snapshots.

On the disk details page, click the “Snapshots” tab to open the snapshots page.
View the snapshot list for the disk. The following operations are supported:
- Roll back disk: Roll the disk back to the state when the snapshot was created. Before rollback, ensure the VM associated with the disk is stopped. Click “Roll back disk” in the Actions column for the snapshot to open the roll back disk dialog, then click “OK”.
- Sync status: Get the current status of the snapshot. Click “Sync status” in the Actions column for the snapshot.
- Delete: Delete a disk snapshot. Click “Delete” in the Actions column for the snapshot to open the confirmation dialog, then click “OK”.

Tasks

Shows related asynchronous tasks for the disk.

On the disk details page, click the “Tasks” tab to open the tasks page.
View the execution status of related tasks.

View operation logs

This feature shows operation log information related to the disk.

On the disk details page, click the “Operation Logs” tab to open the operation logs page.
- Load more: The list shows 20 operation logs by default. To view more, click “Load more”.
- View log details: Click “View” in the Actions column for an operation log to view log details; content can be copied.
- View logs in a time range: Set the start and end dates in the upper right of the list to query logs for a specified period.
- Export logs: Click the icon in the upper right, set the export columns in the export data dialog, then click “OK” to export the logs shown on the current page.

Docs: Storage Management

Mon, 01 Jan 0001 00:00:00 +0000

Disk management

Attach disk

Attach a data disk to a VM.

On the VMs page, click the VM name to open the VM details page.
Click the “Disks” tab to open the disks page.
Click the “Attach disk” button.
Select the disk to attach.
Click the “OK” button.

Detach disk

Detach a data disk from a VM.

On the VMs page, click the VM name to open the VM details page.
Click the “Disks” tab to open the disks page.
Click the “Detach” button in the Actions column of the disk.
Confirm the operation.

Snapshot management

Create snapshot

Create a snapshot for a VM.

Support for creating snapshots differs by platform. See Platform Compatibility.

On the VMs page, click the “More” button in the Actions column of the VM, then choose “Snapshot - Create snapshot”.
Set the snapshot name and notes.
Click the “OK” button.

View snapshots

View the snapshot list of a VM.

On the VMs page, click the VM name to open the VM details page.
Click the “Snapshots” tab to open the snapshots page.
View disk snapshots and host snapshots.

Backup management

Create backup

Create a backup for a VM.

Supported only on the OneCloud platform.

On the VMs page, click the “More” button in the Actions column of the VM, then choose “Backup - Create backup”.
Set the backup name and notes.
Click the “OK” button.

View backups

View the backup list of a VM.

On the VMs page, click the VM name to open the VM details page.
Click the “Backups” tab to open the backups page.
View the backup list.

ISO management

Mount ISO

Mount an ISO image to a VM.

Supported only on the OneCloud platform.

On the VMs page, click the “More” button in the Actions column of the VM, then choose “ISO - Mount ISO”.
Select an ISO image.
Click the “OK” button.

Unmount ISO

Unmount an ISO image from a VM.

On the VMs page, click the “More” button in the Actions column of the VM, then choose “ISO - Unmount ISO”.
Confirm the operation.

Save image

Save a VM as an image.

Support for saving images differs by platform. See Platform Compatibility.

On the VMs page, click the “More” button in the Actions column of the VM, then choose “Image - Save image”.
Set the image name and notes.
Click the “OK” button.

Cloudpods – Storage

Docs: Disks

List fields

Create disk

Create an on-premise disk

Create a private cloud disk

Create a public cloud disk

Resize disk

Attach

Detach

Create snapshot

Set auto snapshot

Auto reset on shutdown

Change driver

Change project

Sync status

Set tags

Delete

View disk details

Disk information

Snapshots

Tasks

View operation logs

Docs: Storage Management

Disk management

Attach disk

Detach disk

Snapshot management

Create snapshot

View snapshots

Backup management

Create backup

View backups

ISO management

Mount ISO

Unmount ISO

Save image