Release Notes › Known Issues › Miscellaneous › Max Disk Space for Virtual CA User Activity Reporting Module Is Too Small

Max Disk Space for Virtual CA User Activity Reporting Module Is Too Small

Symptom:

Not able to create a virtual machine with an allocated disk space of 512 GB in VMware ESX Server v3.5. My virtual CA User Activity Reporting Module server needs more than the 256 GB maximum to handle event volume.

Solution:

VMWare ESX Server uses a default Block Size of 1 MB, and calculates the maximum disk space using this value. When the block size is set to 1 MB, the maximum disk space defaults to 256 GB. If you want to configure more than 256 GB of virtual disk space, you can increase the default block size.

To create a larger virtual disk

1. Access the service console on the VMware ESX Server.
2. Increase the Block Size to 2 MB with the following command:

   vmkfstools --createfs vmfs3 --blocksize 2M vmhba0:0:0:3
   

   In this command, the value 2M means 512 GB (2 x 256).

3. Restart the VMware ESX Server.
4. Create a new virtual machine with disk space set to 512 GB.

More information about this command and other commands is available in the VMware ESX Server documentation.