The CA Nimsoft Monitor Server 6.5 Cluster requires shared disks between the two Virtual Machines that are the nodes of the cluster.
- Right-click the OSS-NMS1 virtual machine, and select Edit Settings.
The OSS-NMS1-Virtual Machine Properties page opens.

- Select SCSI controller 1, from the Hardware list.
- Select Virtual, from Set SCSI Bus Sharing section.
- Repeat steps 2 through 3 for SCSI controller 2.

- Select Hard Disk 2 and 3 from the device list and write down the Disk File name.
Example: [datastore] MaaS-NMS1/MaaS-NMS1_1.vmdk
Note: Make sure that the names are readily available for the further steps.
- Click OK.
- Repeat steps 1 through 4 of this procedure for the OSS-NMS2 virtual machine.
Note: If you could not select Thick EagerZero, when deploying the OVF, you must add the disks for OSS-NMS2.

Note: If you do not see Hard disk 2 and Hard disk 3, skip step 7 and 8.
- In the OSS-NMS2 virtual machine, select Hard disk 2 and click Remove.
- Select Remove from virtual machine and delete files from disk, in the Removal Options.
- Repeat step 7 for Hard Disk 3.
- Click Add.
The Add Hardware wizard opens.
Note: Adding the hard disk also adds the SCSI Controller.

- Select Hard Disk, and click Next.
- Select Use an existing virtual disk, and click Next.

- Click Browse to navigate to the Disk File location you noted in step 5 and then click Next.
Note: Ensure that you navigate to the location for Disk 2.

- Set the Virtual Device Node to SCSI (1:0), and click Next.

- Review the options, and click Finish on the Ready to Complete page.
- Repeat steps 9 to14 using the Disk File location noted earlier for Disk 3 and set the Virtual Device Node to SCSI (2:0).
The New SCSI controller is added.

- Select the new SCSI controllers and ensure that the SCSI bus sharing is set to Virtual.
- Click OK.
The virtual disk configuration is complete.
- Right-click the CA Nimsoft Monitor Server 6.5 vApp and select Power On.
Note: Ignore the warning about starting from the vApp, and click OK.