Instances and Clusters

Instances and Clusters

Q. How to create an instance?

In order to create an instance or a cluster please follow the steps on the Create an instance.

Q. How to enable/disable/delete of an image template that exists locally or has been downloaded from a remote repository?

In case the user would like to create a VM instance using one of these available local image templates, the desired template status of this instance should be enabled, by clicking on the action button for the corresponding template, and then select the Enable option. The user is also able to deactivate an already enabled template from the local repo by selecting the disable option. In addition, users are also able to delete either 'enabled' or 'disabled' local templates, as shown in the image below. For more information please read Template management.

Q. How to download an image template?

The user can download a remote template from the sunlight repo, in order to be used for an instance creation. Consequently, the user can select 'sunlight' tab repo and click on the 'Download' option. For more details please read Template management.

Q. What is the image type?

The user can distinguish the type (HVM or PV) of the template. Para-virtualization (PV)  gave you better performance (with a much closer integration to the virtualization host, through patched specialized kernels/drivers on both the host and the guest). Hardware-assisted virtualization (HVM) uses the benefits provided in modern hardware, and it doesn't require any kind of custom kernel or patches. 

Q. Can the instance be resized?

Yes, the platform provides the capability of changing the size of an instance by changing its flavor. This process rebuilds the instance and therefore concludes with a restart.

Q. How can the instance be resized?

 An instance can be resized according to the steps on the following link Instance resize

Q. Can the instance be renamed?

 Yes, the platform provides the capability of changing the name of an instance.

Q. How can the instance be renamed?

 An instance can be resized according to the steps on the following link Instance rename.

Q. How a CD/ISO can be attached/detach to an instance?

The platform provides the functionality available to users of attaching and booting an instance VM from a CD/ISO image that exists locally or has been downloaded from a remote repository. Please read the steps on the following link Attach/Detach CD/ISO

Q. How to access a windows instance?

To access a windows instance you can connect to VNC console. The following link describe the procedure required in order to access Windows instances Windows Configurations.

Q. How to set a password to windows?

For Windows 2012 the following is enabled: 
    Username: administrator
    Password: pass123
Please change this to a secure password. For Windows 2016 the password for user administrator must be reset as soon as you connect via the VNC console.
In order to set or change administrator's password please follow the instructions Windows Configurations.

Q. Why windows instance has not internet access?

If the physical interface is configured as static, some additional Windows Network configurations have to be performed manually, as described on the following link Windows Configurations.

Q. How to connect remotely to a windows instance?
In order to connect to a windows instance remotely you must accept the firewall rules as described on the link Windows Configurations .

Q. Why ephemeral disks are not appear on a windows instance?

Once a new ephemeral disk has been assigned, following the creation or the resize of a Windows Instance, the user is able to login via the console and add this additional disk volume through the Windows Disk Management.  In order to achieve this, please follow the steps on the following link Windows Configurations.

Q. Can i manually migrate instances from one node to another? If yes, how?

Yes, you cane manually migrate instances. The following link (Instance Migration) refers to the manual migration process of an existing instance from one NexVisor Node to another.

Q. How can i shutdown/startup/reboot an instance?

Instances can be shutdown (terminated) and started up again or they can be restarted through the instance's "actions" menu, as described on the following link Instance Actions.

Q. How can i add/remove a virtual network interface (VIF) from an instance?

Add/Remove instance refers to the functionality of attaching or deleting a virtual network interface (VIF) to an existing VM instance. A VIF can be attached to an existing VM instance through the list of available VIFs.

Q. Can i update Virtual Network Interface IP address? If yes, how?

Update VIF IP refers to the functionality of manually updating the IP address of a virtual network interface (VIF) which is attached to an existing instance, according to the provided IP range.



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