I'm running VMWare Fusion 2.0 (116369) and have noticed that anytime the virtual machine is running, there is constant disk activity going on, even though
Download Disk Activity Indicator 1.0 - softpedia.com Disk Activity Indicator is a simple software utility that can come to the rescue in this particular case. Software alternative to a missing HDD led This lightweight and portable application Hard Disk activity constantly at 100%, startup takes over Aug 18, 2015 SysGauge - System Monitor - Disk Activity Monitoring
Display the disk activity of any process in Windows
View disk activity in Activity Monitor on Mac - Apple Support To see disk activity, click Disk in the Activity Monitor window (or use the Touch Bar). Activity Monitor tracks the number of times your Mac accesses the disk to read and write data, and shows the amount of data that’s read or written to your disk. To see a graph of disk activity in the Dock, choose View > Dock Icon > Show Disk Activity.
Hard Disk activity constantly at 100%, startup takes over
What Is a Hard Drive Activity Light? (HDD LED)