7. A server provisioning operation is set off by the euisap.ClusterAddServer 

workflow, which selects a server from the resource pool and allocates to the 

Cluster. The selected server status changes to 

in transition

.

Figure 9   Allocated server in transition state

8. The provisioning operation proceeds by performing a software stack 

installation on the selected server. This is executed by the 

zvm.bootServerInstallImage workflow.

9. The zvm.bootServerInstallImage workflow issues a series of workflows 

performing calls to the managed through server of our scenario using the 

VMAPI. These calls are used to:

  Connect and authenticate to our zVM system.

  Perform queries on the available VM user IDs to host our predefined 

z/Linux software stack.

  Create an entry on the zVM directory for the new user ID.

  Allocate a series of minidisks to host the software stack image.

  Install the software stack image.

  Activate a new user ID. This action activates the zLinux image.

Figure 10   VMAPI workflows

56 

Dynamic Provisioning of SAP Environments using IBM DI for mySAP and Tivoli Provisioning