Features:

This section instructs tenants to create VM snapshots, with the snapshot types of disk based snapshots and storage based snapshots.

In SCP 6.10.0 and higher, Disk Based Snapshot of Snapshot Type is changed to External Disk Based Snapshot with support for configuring Merging Speed for External Snapshot Deletion. As compared to internal disk based snapshots, external disk based snapshots release space after being deleted, which eliminates the impact of snapshots on the VM performance.

Precautions:

Snapshots are often used in scenarios where original data needs to be protected before virtual machine patches or upgrades, software updates, and other high-risk operations. If data backup is required, it is recommended to use the backup function.

Supports tenant users to create VM snapshots and recover VMs from snapshots.

A VM cannot have an external snapshot and an internal snapshot at the same time, nor a storage based snapshot and a disk based snapshot at the same time.

Snapshots created for VMs with internal snapshots on SCP 6.10.0 upgraded from a lower version are internal snapshots by default.

Disk based snapshots created for newly created VMs or VMs without snapshots are external snapshots by default.

It is not supported to delete snapshots outside fork points. Each snapshot contains incremental changes to the basic disk, and if snapshots outside the fork points are deleted, multiple snapshot chains and a large amount of data will be merged, which has a negative impact on system performance.

External snapshot deletion takes more time than internal snapshot deletion. External snapshots contain incremental changes to basic disks as well as related index information, and when deleting an external snapshot, these incremental changes are merged into the basic disks to recover the VM to the state when the snapshot was deleted, which can be very time-consuming.

Prerequisite

N/A.

Steps:

Step 1.In the virtual machine summary, select Snapshots, and click the Take Snapshot button to create a snapshot of the current virtual machine.

Step 2.After creating a snapshot, you can use the snapshot to recover the virtual machine or clone a new virtual machine.

Select All disks or Some disks to recover the VM from the snapshot.