A zone’s hosts must be organized into host groups before they can be used to run Novell Cloud Manager business services. As you organize hosts into groups, consider the following:
A host can belong to only one group.
All hosts in a group must reside in the same zone.
All hosts in a group must be identical in terms of hypervisor technology and version, operating system version, network configuration, storage repository configuration, and hardware capabilities. This enables a workload to run on any of the group’s hosts.
All hosts that share the same repository must belong to the same host group. In other words, two different host groups cannot include hosts that share the same repository. You can view a host’s details in the Cloud Manager console to see its repositories.
If the host group is using the VMware hypervisor, the host group can contain hosts from one vCenter server only. Including hosts from multiple vCenter servers in the same host group is not supported.
Both a cluster and its member hosts can be added to the same group. We recommend that you either add the cluster or its hosts, but not both.
For example, you might have a Business Critical host group that consists of high-performance hosts intended for mission critical applications and services. At the same time, you might have a Lab host group that consists of standard-performance hosts intended for software testing.
To create a host group:
In the Cloud Manager console, click , then click the tab.
Click to display the Select Zone dialog box.
Select the zone that contains the hosts you want to add to the group, then click .
In the fields, provide the following information for the host group:
Name: Specify a name for the group. The name should be different than any other host group name. This name is seen by Novell Cloud Manager administrators only.
Zone: Displays the zone whose hosts you can add to the group. You cannot change this setting.
Hypervisor: Select the hypervisor technology for the group’s hosts. You will be able to add only those hosts that meet the hypervisor criteria.
Description: Provide any additional information for the host group.
In the fields, define the monthly cost associated with the host group resources:
vCPU: Specify the cost per virtual CPU.
Memory: Specify the cost per megabyte (MB) of memory.
Disk: Specify the cost per gigabyte (GB) of disk space.
Network: Specify the cost per network interface card.
In the field, select the maximum number of virtual CPUs allowed for each host.
For example, if you select 32, the total vCPUs for all business service workloads running on a host cannot exceed 32.
Add hosts to the group:
In the list, click to display the Add Hosts dialog box.
The list displays all available hosts in the zone that meet the selected hypervisor criteria. Hosts that are already assigned to another host group are not displayed.
Select the hosts.
You can Shift-click and Ctrl-click to select multiple hosts.
Click to add the selected hosts to the list.
Click .