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&PRODUCT; provides parameters that you can set to control many aspects of the cloud. When &PRODUCT; is first installed, and periodically thereafter, you might need to modify these settings. Log in to the UI as administrator. In the left navigation bar, click Global Settings. In Select View, choose one of the following: Global Settings. This displays a list of the parameters with brief descriptions and current values. Hypervisor Capabilities. This displays a list of hypervisor versions with the maximum number of guests supported for each. Use the search box to narrow down the list to those you are interested in. Click the Edit icon to modify a value. If you are viewing Hypervisor Capabilities, you must click the name of the hypervisor first to display the editing screen.

&PRODUCT; provides a variety of settings you can use to set limits, configure features, and enable or disable features in the cloud. Once your Management Server is running, you might need to set some of these global configuration parameters, depending on what optional features you are setting up. To modify global configuration parameters, use the steps in "Setting Global Configuration Parameters." The documentation for each &PRODUCT; feature should direct you to the names of the applicable parameters. Many of them are discussed in the &PRODUCT; Administration Guide. The following table shows a few of the more useful parameters. Field Value management.network.cidr A CIDR that describes the network that the management CIDRs reside on. This variable must be set for deployments that use vSphere. It is recommended to be set for other deployments as well. Example: 192.168.3.0/24. xen.setup.multipath For XenServer nodes, this is a true/false variable that instructs CloudStack to enable iSCSI multipath on the XenServer Hosts when they are added. This defaults to false. Set it to true if you would like CloudStack to enable multipath. If this is true for a NFS-based deployment multipath will still be enabled on the XenServer host. However, this does not impact NFS operation and is harmless. secstorage.allowed.internal.sites This is used to protect your internal network from rogue attempts to download arbitrary files using the template download feature. This is a comma-separated list of CIDRs. If a requested URL matches any of these CIDRs the Secondary Storage VM will use the private network interface to fetch the URL. Other URLs will go through the public interface. We suggest you set this to 1 or 2 hardened internal machines where you keep your templates. For example, set it to 192.168.1.66/32. use.local.storage Determines whether CloudStack will use storage that is local to the Host for data disks, templates, and snapshots. By default CloudStack will not use this storage. You should change this to true if you want to use local storage and you understand the reliability and feature drawbacks to choosing local storage. host This is the IP address of the Management Server. If you are using multiple Management Servers you should enter a load balanced IP address that is reachable via the private network. default.page.size Maximum number of items per page that can be returned by a CloudStack API command. The limit applies at the cloud level and can vary from cloud to cloud. You can override this with a lower value on a particular API call by using the page and pagesize API command parameters. For more information, see the Developer's Guide. Default: 500. ha.tag The label you want to use throughout the cloud to designate certain hosts as dedicated HA hosts. These hosts will be used only for HA-enabled VMs that are restarting due to the failure of another host. For example, you could set this to ha_host. Specify the ha.tag value as a host tag when you add a new host to the cloud.