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Virtual Machines - VM Changes Report
Large virtualized environments often consist of too many VMs hosted on the virtual server. Apart from monitoring these VMs, monitoring the addition, migration and removal of VMs from the virtual server poses a major problem for the administrators. Using the VM Changes report, you can easily identify the VMs that are currently added to and removed from the virtual server. In addition to this, administrators can figure out those VMs that were migrated within the resource pools of the virtual server or outside the virtual server.
Essential Pre-requisites for generating the VM Changes report:
To generate the VM Changes report, do the following:
Figure 1 will then appear. By default, the Report for list will display VMware vCenter as its selection.
Next, from the Components list, select the vCenter server(s) for which this report is to be generated. By default, all the managed vCenter servers in your environment will be listed here. This is because, the default selection from the Analyze by list is Component. You can however narrow your search by opting to view only those vCenter servers that are part of a service/segment/zone in the VMware vCenter list. For this, select the Zone, Service, or Segment, option from the Analyze By field:
Specify the report Timeline. You can either provide a fixed time line such as 1 hour, 2 days, etc., or select the Any option from the list to provide a From and To date/time for report generation.
For every user registered with the eG Enterprise system, the administrator can indicate the maximum timeline for which that user can generate a report. Once the maximum timeline is set for a user, then, whenever that user logs into eG Reporter and attempts to generate a report, the Timeline list box in the report page will display options according to the maximum timeline setting of that user. For instance, if a user can generate a report for a maximum period of 3 days only, then 3 days will be the highest option displayed in the Timeline list - i.e., 3 days will be the last option in the fixed Timeline list. Similarly, if the user chooses the Any option from the Timeline list and proceeds to provide a start date and end date for report generation using the From and To specifications, eG Enterprise will first check if the user's Timeline specification conforms to his/her maximum timeline setting. If not, report generation will fail. For instance, for a user who is allowed to generate reports spanning over a maximum period of 3 days only, the difference between the From and To dates should never be over 3 days. If it is, then, upon clicking the Run Report button a message box will appear, prompting the user to change the From and To specification.
In addition to the settings discussed above, this report comes with a set of default specifications. These settings are hidden by default. If you do not want to disturb these default settings, then you can proceed to generate the report by clicking the Run Report button soon after you pick an option from the Components list. However, if you want to view and then alter these settings (if required), click on the icon. The default settings will then appear in the MORE OPTIONS drop down window (see ). The steps below discuss each of these settings and how they can be customized.
If the timeline specified for the report needs to exclude the data collected during the Weekends, then set Exclude weekends to Yes. If not, select No.
By default, the weekend constitutes Saturday and Sunday. To override this default setting, do the following:
In large environments, reports generated using months of data can take a long time to complete. Administrators now have the option of generating reports on-line or in the background. When a report is scheduled for background generation, administrators can proceed with their other monitoring, diagnosis, and reporting tasks, while the eG manager is processing the report. This saves the administrator valuable time. To schedule background processing of a report, you can either select the Background Save - PDF option or the Background Save - CSV option from the Report Generation list. In this case, a Report Name text box will appear, where you would have to provide the name with which the report is to be saved in the background. To process reports in the foreground, select the Foreground Generation - HTML option from this list.
Finally, click the Run Report button. Figure 3 will now appear.
Figure 3 shows a tabular VM changes report for a chosen vCenter server. If All option is chosen from the Measures list and the Foreground Generation –HTML option is chosen from the Report Generation list, then the report consists of the following sections:
If Added VMs option is chosen from the Measures list and the Foreground Generation –HTML option is chosen from the Report Generation list, then the generated report will display only the Added VMs section. Likewise this report can be generated for the migrated VMs and the removed VMs by choosing the appropriate option from the Measures list.