Scroll Lock HDD LED

More often than not, if the hard disk is experiencing a serious physical issue, it starts manifesting signs you cannot miss out, such as regular clicking or whirring sounds during boot up. If you want to prevent data loss and ensure you can access your hard disk in the future, it is recommended that you monitor its health regularly.
Scroll Lock HDD LED is an application that enables you to monitor all the volumes of the hard disk and detect activity that could potentially lead to failures.

Does not come with an interface per se

Upon a straightforward setup, you can access the application from the System Tray. After you have selected the LED refresh rate, you can press down the scroll lock key on the keyboard and emulate the physical hard disk drive LED.
The idea behind the program is to make things as smooth and as non-intrusive as possible, similarly to how the LED would react on your computer. Consequentially, the app addresses users who do not have the LED in a visible location or drives that do not integrate one at all.

Could use a reporting tool and history

You will be happy to learn that the application can keep an eye out for all types of drives you connect to your computer, including USB, IDE and SATA. Even though the app does not need to have a better GUI for monitoring purposes, it would be helpful if it allowed you to record activities in a log.
This way, you could perform various tests, such as stressing the hard disk, for instance, using third-party application even when you are not at the computer. As soon as you get home, you could just read the logs and figure out if a certain utility puts too much pressure on your HDD.

A simple utility that can help you avoid a disk failure

All in all, if your notebook or PC does not include an LED light that indicates the activity of the hard disk, but you want to keep a close eye on it, then perhaps Scroll Lock HDD LED could come in handy.