Relocating NBU Catalog to different Windows volume

Hi

I'm in the process of building a new Windows 2012 master server for a new NetBackup environment. Prior to putting the Master server into production I want to move the catalogs to a larger volume. eg NetBackup is installed on the d:\ and I want to put the catalogs onto the e:\ as this is a new drive that has more capacity. 

I think I will only need to move the \images folder and the following technote suggests using mklink to create a symbolic link. But I'm not quite following the syntax and hoping someone can help me.

https://www.veritas.com/support/en_US/article.TECH144969

So currently the path to the images foolder is d:\program files\veritas\netbackup\db\images and has just a single file in it called db_marker.txt

I want to create a symbolic link to e:\nbu_catalogs\images

the mklink command is mklink /d <link> <target>

I need to know if the e:\nbu_catalogs\images will be my link or my target? and do I need to manually copy the db_marker.txt file to the new location and should it be left alone?

Is there perhaps an easier way to do this bearing in mind that this is a fresh build with no existing backup image data yet?

many thanks in advance