![]() ![]() The software is usually adapted to the distribution and then combined into software packages by the distribution's maintainers. Ī Linux distribution may also be described as a particular assortment of application and utility software (various GNU tools and libraries, for example), packaged with the Linux kernel in such a way that its capabilities meet many users' needs. Usually, Linux distributions optionally include some proprietary software that may not be available in source code form, such as binary blobs required for some device drivers. Most of the included software is free and open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. ![]() Linux users usually obtain their operating system by downloading one of the Linux distributions, which are available for a wide variety of systems ranging from embedded devices (for example, OpenWrt) and personal computers (for example, Linux Mint) to powerful supercomputers (for example, Rocks Cluster Distribution).Ī typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System, or, more recently, Wayland), a window manager, and a desktop environment. Once you have tried it out, let me know what you think of DiskLED and how it can be improved by commenting on this article.Ubuntu, one of the most popular desktop Linux distributionsĪ Linux distribution (often abbreviated as distro) is an operating system made from a software collection that includes the Linux kernel, and often a package management system. This value is considered as 100% utilization Path=Path=\PhysicalDisk(_Total)\Current Disk Queue Length In the case of disk queue length, this is typically 2 on single-disk systems: With this display mode, you have to tell DiskLED which numerical value corresponds to 100% utilization. The second sample configuration uses a bar-style display mode to display the disk queue length (\PhysicalDisk(_Total)\Current Disk Queue Length). The update interval of this counter in ms Path=\Physikalischer Datenträger(_Total)\Zeit (%) The localized (!) path to the performance counter used as a data source for the LED Configuration file for DiskLED by Helge Klein Here are two different configurations for reference purposes:ĭefault configuration, but for a German system: A sample INI file is included in the download. If there is anything you want to modify, create a text file, name it DiskLED.ini and put it in the same folder as the executable. ![]() So if you have an English version of Windows and just need a HDD activity LED, there is nothing you need to do except run DiskLED. Performance counter used as data source ( localized!): \PhysicalDisk(_Total)\% Disk Time If you run the executable all by itself, it uses the following built-in parameters:ĭisplay mode: flickering LED (first example shown above) UsageĭiskLED comes as a standalone EXE file. For that reason the frequency with which DiskLED updates its icon can be configured freely. When dealing with remoting protocols like RDP or ICA one generally tries to reduce screen updates to a minimum. It can be used to display the disk queue length, for example, and looks like this: Here you go: DiskLED has a second display mode, similar to how Task Manager shows CPU utilization. When dealing with many other counters, a different visualization method is needed. Obviously an LED type display is well-suited for activity data only. Using a simple INI file, DiskLED can be configured to display any counter’s data. The cool thing is it is not limited to hard disk activity data. Basically, what it does is periodically query a specific counter and display the current value graphically. FlexibilityĭiskLED queries performance counters for disk activity data. ![]() That could be all there is to say, but I decided to make the tool a little more flexible. This has been bugging me enough to write a software replacement: DiskLED.ĭiskLED is a little application that sits in the system tray and flickers whenever the hard disk is accessed. But what if you are using a protocol like RDP or ICA to connect to a remote computer or VM? No HDD LED, no quick and simple way to check for hard drive activity. Problem solved – if you are sitting right next to the machine. What do you do when your computer reacts sluggishly to even the simplest commands? You probably look at its hard disk LED to determine if the disk is busy, because if it is, the only thing that really helps is waiting (apart from buying a faster disk or SSD). ![]()
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