An instance is another term used for a virtual machine. Virtual machines are software implementations of physical computers, and can execute computer programs. You can power on, power off, or suspend a virtual machine just like you would a physical computer.
Display Name: A unique name given to your VM by your service provider.
Group: The group to which the VM belongs. This is set when the VM is created.
Zone: A unique zone in which your VM is placed.
Template: The template from which your VM was created.
Compute Details: Details about the compute resources. CPU, RAM, and so on.
Account: The account this VM was created in.
Domain: The domain in which this VM resides.
Created: The date on which this VM was created.
HA enabled: HA stand for High Availability. If this is enabled for the selected VM, the downtime for the VM is minimal.
Attached ISO: If the value is Yes, it means that the VM container has an attached ISO.
The Filter menu shows a list by which you can order your VMs:
Move your cursor over the gear wheel icon. You see a list of actions that you can perform for the selected VM.
Edit VM: Click this option and change the Display Name. You can also change the Group to which this VM belongs.
Reboot VM: Click this option to reboot the selected VM.
Start VM: Click this option to start (power on) the selected VM. Only VMs in stopped state can be started.
Stop VM: Click this option to stop the selected VM. Only VMs that are running can be stopped.
Restore VM: Click this option to restore the VM to its original template.
Reset Password: Click this option to reset the password for this VM. The VM must be password enabled for you to be able to reset the password.
Attach/Detach ISO: An ISO image is an exact copy of an existing file system. You can attach an ISO to your VM with this option. Attached ISOs can be detached. The ISO that you select must be compatible with the VM hypervisor for the ISO to be attached successfully. Click the option to attach or detach an ISO.
Change service: This option is seen only for stopped VMs. Change service is always performed on stopped VM. Both scale up and scale down CPU and/or RAM can be performed.
Reset SSH Key: Click this option to reset the SSH Key for the selected VM.
Click the Volumes tab to view details of the volumes attached with the instance that is selected. In addition to viewing the details, you can also take snapshots by clicking the Take Snapshot option in the gear wheel menu. Click the View Snapshots option to view all the snapshots. This action will take you the Snapshots page.
Click the NICs tab to view details of the Network Interface Cards associated with the selected instance. The details shown are IP, Gateway, Netmask, Type (isolated or shared network), Network ID (system generated), and Network Name (that you provide).
Click the Snapshots tab to view details of the VM snapshots attached with the selected instance. In addition to viewing the details, you can revert the selected instance to the desired VM snapshot by clicking the Revert Snapshot option in the gear wheel menu. You can delete the selected VM snapshot by clicking the Delete Snapshot option in the gear wheel menu. Click the View Details option to view all the details of the selected snapshots. This action will take you the Snapshots page.
Click the Subscriptions tab to view the details of the subscription associated with the VM. The ID is the UUID of the subscription. The 'View Details' link displays the included entitlements. The name of the subscription links to the subscription in the Subscriptions page.