DriveGleam is a free app that installs a handful of activity indicators as icons in your system...
Atlas Hard Drive LED Status Details
Atlas Hard Drive LED Alternatives
SaaSHub's Down Detector checks the status of services automatically and regularly. However, we cannot promise 100% accuracy. That is why we depend on user reported issues as well. The Atlas Hard Drive LED status here can help you determine if there is a global outage and Atlas Hard Drive LED is down for everyone or it is just you that is experiencing problems. Please always report any issues to help others know the current status.