Snapshot policies
A snapshot is a replica of a VM as it was when you take the snapshot. If the image file of a VM is damaged or deleted, the snapshot data will be lost.
Snapshots can be used for VM recovery when application software and VM OS incompatibility occurs because of new application software installation, VM OS upgrade, or application software upgrade.
You can create a snapshot for one VM (see "Manage VM snapshots"), or create a snapshot policy. When the time for executing the snapshot policy is reached, the system takes a snapshot for a VM, and generates a snapshot file.
Restrictions and guidelines
You can create a snapshot only for a VM that uses an intelligent disk.
Taking a snapshot for a VM does not replicate the GPU configuration. When you restore a VM from a snapshot, GPU configuration is not restored.
Add a snapshot policy
From the left navigation pane, select Resources.
Click More, and then select Snapshot Policy.
Click Add.
Configure the parameters as described in "Parameters."
Click Finish.
Modify a snapshot policy
From the left navigation pane, select Resources.
Click More, and then select Snapshot Policy.
Click the Modify icon
for a snapshot policy.
Configure the parameters as described in "Parameters."
Click Finish.
Delete a snapshot policy
From the left navigation pane, select Resources.
Click More, and then select Snapshot Policy.
Click the Delete icon
for a snapshot policy.
In the dialog box that opens, click OK.
Enable a snapshot policy
From the left navigation pane, select Resources.
Click More and select Snapshot Policy.
Click the Enable icon
for a snapshot policy.
In the dialog box that opens, click OK.
Disable a snapshot policy
From the left navigation pane, select Resources.
Click More and select Snapshot Policy.
Click the Enable icon
for a snapshot policy.
In the dialog box that opens, click OK.
Remove a VM from a snapshot policy
From the left navigation pane, select Resources.
Click More and select Snapshot Policy.
Click a snapshot policy.
Click the Delete icon
for a VM in the VMs Using the Snapshot Policy area.
In the dialog box that opens, click OK.
Parameters
Max Snapshots: Set the maximum number of VM snapshots. If this parameter is set to 0, the number of VM snapshots is not limited.
Snapshot Memory: Select whether to include memory state in the snapshot. Enabling this feature might cause service interruption of a VM when the VM has a high memory usage.
Take Effect Now: Select whether to enable the snapshot policy after creation.
Execution Time
Frequency: Select the execution frequency of the snapshot policy. Options include Monthly, Weekly, and Daily.