6.11 Test scenarios for Example 2 (with On/Off CoD) 6.11.1 Bringing two resource groups online Based on the configuration in 6.10, “Example 2: Setting up one ROHA cluster (with On/Off  CoD)” on page 236, this section introduces two testing scenarios: When PowerHA SystemMirror starts cluster services on the primary node (ITSO_S1Node1),  the two RGs go online. The procedure that is related to ROHA is shown in Figure 6-42. Section 6.6, “Introduction to resource acquisition” on page 198 introduces four steps for  PowerHA SystemMirror to acquire the resources. In this case, the following sections are the  detailed descriptions of the four steps. PowerHA SystemMirror queries the server, EPCoD, the On/Off CoD, the LPARs, and the  current RG information. The data is shown in the yellow tables in Figure 6-42. Query step Chapter 6. Resource Optimized High Availability  241 Figure 6-42 Acquire resource process of example 2 GLYPH<SM590000> Bringing two resource groups online GLYPH<SM590000> Bringing one resource group offline