This article describes how to create a "Snapshot Preview" Cloud Server from Local Snapshot. A "Snapshot Preview" server is a new Cloud Server that is configured exactly like a historical snapshot. Instructions for doing this on a Replicated Snapshot are at How to Create a Snapshot Preview Server from a Replicated Snapshot.
For more information on the Cloud Server Snapshots and the difference between Local and Replicated Snapshots, see Introduction to Cloud Server Snapshots.
To view a list of your snapshots, see How to View and Manage Snapshots for a Cloud Server.
- Only the Primary Administrator or a Sub-Administrator with the Server role can create a Cloud Server from a Snapshot.
- Snapshot Service and Hypervisor cannot be in Maintenance.
- The server must be enabled for Snapshots and the Snapshot State must be NORMAL.
- For Replicated Snapshot Server Preview Servers, the Snapshot State can be either Normal or Pending Change.
- Historical Snapshot Server configuration must be valid for the target Data Center (or Cluster for Multiple Cluster environments).
- The Snapshot's historical "private" IPv4 and IPv6 addresses for each Server NIC cannot be "exclusively reserved" on the Network Domain.
- You are limited to a maximum of 10 Servers in "Snapshot Preview" mode in a given location at a time.
- You can delete a Server that is in Snapshot Preview mode. See How to Delete a Cloud Server
- If Snapshot has Advanced Virtualization Settings:
- If the Source Image has Nested Hardware Virtualization set to true, then the Target Cluster must be enabled to support Advanced Virtualization Settings. See How do I Identify Hardware Specifications and Capabilities Available in a Data Center Location
- If the Source Image has CPU Latency Sensitivity set to HIGH, then the Target Cluster must be enabled to support Advanced Virtualization Settings. See How do I Identify Hardware Specifications and Capabilities Available in a Data Center Location
- If Source Image has Numa Autosize numaAutosize set to true, then the Target Cluster must be enabled to support Advanced Virtualization Settings. See How do I Identify Hardware Specifications and Capabilities Available in a Data Center Location
- If Source Image has Enable Host Info to VM Tools set to true, then the Target Cluster must be enabled to support Advanced Virtualization Settings. See How do I Identify Hardware Specifications and Capabilities Available in a Data Center Location
- For more information on Advanced Virtualization Settings, see Introduction to Advanced Virtualization Settings
Content / Solution:
From the Home page, select the Data Center where the Cloud Server Snapshot you want to use to create a Snapshot Preview Cloud Server is located:
The Data Center Dashboard will be displayed. Select the Network Domain where the Cloud Server Snapshot you want to use is located:
The Network Domain dashboard will be displayed. Click on the Server where the Cloud Server Snapshot you want to use is located:
The Server dashboard will be displayed. Click on the Snapshots tab, then click on the Manage gear for the Snapshot you want to use, and select Deploy Server from Snapshot:
Note: Hovering your mouse over the icon will display the regional time in a pop-up:
The Deploy Server from Snapshot dialog will be displayed:Note: If the Snapshot from which you are attempting to create a Snapshot Preview Server is currently on Archival Storage, the process will take much longer to finish. Please see Introduction to Cloud Server Snapshots
The Deploy Server from Snapshot dialog displays various data about the Snapshot, including:
- Data Center - The Data Center where the Snapshot is located
- Network Domain - The Network Domain of the Historical Snapshot
- Snapshot ID - The ID of the Snapshot
- Parent Server - The Name of the Parent Server
- Note: You can click the Add Server button to create multiple servers from the same Snapshot.
Fill out the form with the desired information:
- Server Name - Enter a name for the Server.
- Note: VLAN, IPv4 Address, and IPv6 Address are inherited from the Historical Snapshot, and will be pre-populated in the dialog. These fields cannot be changed
- Connect NIC - Select if you want the NIC(s) to be connected or not. For more information on NIC Connectivity, see Introduction to Cloud Server NICs in MCP 2.0
- Note: Because the Snapshot Preview server is from a historical snapshot of the original server and is provisioned to the same VLANs as the original server, there is a high likelihood of IP conflict if the original server is running. We recommend creating Snapshot Preview Servers with the NICs in a disconnected state and connecting them only after you are sure it will not cause a problem.
- Preserve MAC Address(es) - By default, the NIC MAC Addresses of the new "Snapshot Preview" server will differ from those that were assigned to the server from which the Historical Snapshot was taken. If either your Guest OS or your application is sensitive to the MAC address settings, select this option to keep the MAC addresses the same as the server from which Snapshot originated. However, by preserving MAC addresses, you may create a MAC address conflict. For more details, see:
- Description - Enter an optional Description
- Cluster - If the Data Center has Multiple Clusters, you can select the Cluster.
- If the Server has Advanced Virtualization Settings, then the Cluster must be enabled to support Advanced Virtualization Settings. See:
- If a Cluster does NOT support Advanced Virtualization Settings, the Cluster will be greyed out in the drop-down menu and will have a popup indicating that it does not support Advanced Virtualization Settings.
- Add/Update Tag to List - Add Tags to the Server. See Introduction to Tagging, Tag Keys and Tag Values
- Server Name - Enter a name for the Server.
Once you have filled out the form, click the Review button to review the Server before it is deployed to Snapshot Preview mode:
Once you have reviewed the details, click Deploy Server:
Note: You can select to start the Server upon deployment by checking the Start server(s) on deploy box
Note: You can 'drill down' into the storage section to review the allocated storage:
Any disk speeds that are listed on a Snapshot Preview Server are indicative of the Disk Speed that the Disk will have once the Snapshot Preview Server has been migrated to a normal Cloud Server. Until the Snapshot Preview Server is migrated to a Normal Server, all Disks will run at a modified Disk Speed, which does not have the same I/O.
The Server will be added to the Network Domain Server pool and the system will indicate that the Server deployment is in progress:
Click on the Server to open the Server Dashboard for the Snapshot Server. You'll notice that the Server is being added in the Snapshot Preview State:
Assuming the Server is successfully deployed, The system will indicate that the Snapshot Preview Server is either Running or Stopped, based on your selection in Step 9:
Migrate to Normal Server
For instructions on how to Migrate the Snapshot Preview Server to a normal Server, See How to Migrate a "Snapshot Preview" Server to a Normal Cloud Server
Specific configurations may need additional configuration changes to work after creation from a Snapshot. Specifically:
- When a new "Snapshot Preview" server is created without preserving the MAC addresses, the Guest OS may need configuration changes because new "Snapshot Preview" server's virtual hardware has new MAC addresses on the NICs and the underlying OS does not automatically recognize them. For instructions on how to mitigate this issue, see Enabling Network Connectivity to a Snapshot Preview Server using RHEL, CentOS, or Oracle if MAC Addresses Have Changed
- When a new Snapshot Preview server is created from a Snapshot and the Historical Snapshot from which it was created has a Disk on an IDE controller, which is not an OS Disk, the server will not boot into the OS. For instructions on how to mitigate this issue, see Addressing Boot Order Issues with a Snapshot Preview Server with an IDE Disk
Snapshot Preview Servers from Archived Snapshots
If you request a Snapshot Preview Server from a Snapshot which is on Archival Storage, and there is not enough space on the local storage to bring the Snapshot back, the Snapshot Preview Server will fail, and the failure will be noted in the Administrator Log. See How to View an Administrator Logs Report