1. CM administration

CM administration panel is available by logging on to the https://<www_interface_address>/cm_admin where <www_interface_address> is the IP address of the WI interface. Panel administration module is shown in Figure CM administration panel. The list of available actions is broad. The following key points will be discussed for the different menu bar item.

CM administration panel

CM administration panel

1.1. Virtual machines

Actions in this group allow you to display the list of all virtual machines running on a cluster including filering by individual user. Clicking on the VM description line opens the VM control panel. A detailed description of this panel is given in the CC1 User guide. An additional element is the action Erase to remove the user’s virtual machine with a fail status. This situation signals a serious problem with the worker node or with the operation of the whole system. This requires a thorough examination by the system administrator, therefore this option is not given to the user. A special locking mechanism is introduced to deactivate the problematic node automatically. This way one can avoid starting another VM on the faulty node. When the problem is solved, the node can be enabled according to the instructions in Sec. Hardware.

1.2. Users

This item displays a list of all users. The CM administrator assigns the resources to every user. Modification of resource allocation is done using the action Change account quota and the Edit account quota button. You can set a maximum value for the number of cores, RAM, size of hard drive space (total size of private and virtual disk size), the number of allocated IP addresses used and the maximum number of points in a given month. The second action set admin is used to assign CM admin rights to the user.

1.3. Images

As images are:
  • virtual machines images,
  • virtual disk images,
  • ISO files.
Actions available for each of those include:
  • deleting,
  • editing,
  • copying.

1.3.1. VM images

VM images keep VM’s operating system state.

Additional actions are possible for VM images via the panel Images-> VM images:

Move to public images:
 action changes the image category from private the public.
Register:allowes one to upload new private VM image from a given http location.

1.4. Networks

Menu item Networks consists of three sections:

Users networks:allows you to view the existing networks.
Available pools:
 can be used to add new address pool (the Add pool button) and to block or remove the existing pool.
Public IPs:

1.5. Hardware

The main purpose of this item is to display the menu for the management of working nodes and disk arrays. In both cases, there are buttons for adding new elements. In the case of operations on the nodes we have a number of important items in the Actions menu. These actions are also available from the panel Show details:

Create virtual machine:
 allows you to run a new machine on a given node. This function is useful for testing the operation of the node after removing the previously observed problem. This operation can also be performed on the blocked node.
Edit:allows you to modify the parameters of the node. Typical parameters for the libvirt/KVM virtualization environment are shown in Figure Node edit form. The same form is used for the Add node action.
Mount storage:manual installation of all or selected storages. Used exceptionally in cases where the automatic mechanism fails.
Remove:to remove the node from the CM database. Node is not modified.
Lock / Unlock:Lock or unlock the node, depending on its condition. In the case of problems (virtual machine in state fail) node is automatically locked. One has to solve the problem, check for correct operation using action Create new machine and then unlock the node.
Node edit form

Node edit form

1.6. Templates

Templates define the most important parameters of the virtual machine, such as the number of cores and RAM available.

This section allows you to add virtual machine templates, edit them and delete. The administrator defines the cost of a VM created from a template - the number of points, which the user is charged per hour of use.

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