7.4

For a clustered deployment, in which the deployment created from a blueprint contains more than one
VM, scaling fails if the blueprint uses a hostname custom property but does not contain a machine prefix
value. To avoid this issue, you can use the machine prefix option in the blueprint definition. Otherwise, the
scaling function attempts to use the same hostname setting for each VM in the cluster. For more
information, see VMware Knowledge Base article 2148213 at http://kb.vmware.com/kb/2148213.
Scale Up or Scale Down By Using Reconfigure
After you provision a vSphere, vCloud Air, or vCloud Director virtual or cloud machine you can adjust to
changing workload demands by requesting a machine reconfigure to increase (scale up) or decrease
(scale down) machine resource specifications for CPU, memory, storage, or networks. You can also add,
edit, or remove custom properties and change descriptions. You can request to reconfigure machines for
scale up or scale down that are in the On or Off state.
When you reconfigure a virtual or cloud machine for scale up, vRealize Automation allocates the
requested resources on the current reservation before proceeding. If the resources are not available, the
machine reconfigure fails. If a machine reconfigure request fails, any resources allocated for scale up are
deallocated and available for new requests. When you reconfigure a virtual or cloud machine for scale
down, resources are not made available to new requests unless the reconfigure finishes successfully.
Table 10. Required Entitlements for Machine Reconfigure for Scaling Scenarios ( vSphere ,
vCloud Air , and vCloud Director only
Virtual or Cloud Machine Owner wants to... Required Entitlements
Run the reconfigure for scaling immediately after any required
approvals are given.
Reconfigure
Specify a date and time to run the reconfiguration for scaling. Reconfigure
Reschedule a reconfigure for scaling because the request was
not approved until after the scheduled time.
Reconfigure
Retry a failed reconfigure request. Execute reconfigure
Cancel a failed reconfigure request. Cancel reconfigure
Cancel a scheduled reconfigure request. Cancel reconfigure
XaaS Blueprints and Resource Actions
XaaS architects can use the XaaS options to create blueprints and publish them to the service catalog.
They can also create and publish post-provisioning operations that the consumers can perform on
provisioned items.
Creating XaaS Blueprints and Actions
By using the XaaS blueprints and resource actions, you define new provisioning, request, or action
offerings and publish them to the common catalog as catalog items.
Foundations and Concepts
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