You add to the data disk of vRealize Operations Manager Linux or Windows nodes when space for storing the collected data runs low.

The following example is for a Linux system. The Windows process is similar, but with Windows characteristics such as backward slashes instead of forward slashes.

Note the disk size of the analytics cluster nodes. When adding disk, you must maintain uniform size across analytics cluster nodes.


Add a new disk to the system, and partition and format the disk as needed.


Use the vRealize Operations Manager administration interface to take the cluster offline.


Stop the vmware-casa service.


Move the contents of /storage/db into a directory on the new disk.


Create a symbolic link from the new directory back to /storage/db, so that /storage/db now references the new disk.


Start the vmware-casa service.


Bring the cluster online.