Why the need for diagnostics hard drive

Timely diagnosis of the hard drive allows you to save not only money, but also nerve cells, which are known to be extremely reluctant to recover. It's hard to say which is more important. Today we will talk about what is hard disk diagnostics, for what it is and how it can be done without having to visit service centers.

Hard disk is one of the least reliable component of any computer system. The reason for this is very easy to understand if you remember that Winchester contains rotating parts (disappearing drives and fans and cooling systems do not take into account). Inside it is three-phase AC motor, with high speed spins the spindle with some "pancakes". Consequently, mechanical wear and exposure to such devices is quite natural.

Despite the introduction of various technologies designed to solve the most common problems, reliability is still insufficient. Moreover, modern diagnostics of the hard drive suggests that with each new generation it becomes lower. So, you can still see the fully functional hard drives 40 GB, and the warranty period they were calculated.

The Modern model when the average load is unlikely to live 5-6 years. It charges for high recording density and humane pricing. Fortunately, all is not so sad as it may seem at first glance, especially if you know what is hard drive diagnostics and how to implement it.

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In 1992, IBM introduced their hard drives are special technology that allows with a certain probability to predict future breakage. Special firmware in the firmware of the hard drive constantly was to map the average changes of key (observable) parameters, when approaching the maximum allowable value warned users to backup data to the new drive. Subsequently, the idea received support from giants such as Quantum and Seagate, and has been introduced in all new models. The logic of surveillance has also been revised: now controlled much more parameters, and the accuracy became higher. The mechanism is called SMART (this acronym, but not “smart” as you think).

For Example, for some reason, the Winchester arises unreadable plot. Automatically his reappointment of the reserve zone, with the appropriate parameter changes at the SMART unit. When the number of reassignments reaches a certain limit, the firmware will recommend its replacement.

To evaluate the SMART status, you need a program to diagnose the HDD. We recommend you to use Hard Disc Sentinel – the Russian-speaking interface, visibility, continuous monitoring of disk status. To install, select the hard disk (if several), click on the SMART tab. Here the exclamation points in yellow squares – an occasion to reflect on time of the disc, and his future replacement. You can not delve into such details, but just read the recommendation on the tab “Review”.

Sometimes you can find the instructions that the operating system is possible to diagnose the hard drive. Windows 7 and all other, unfortunately, to work directly with SMART can't. In this case, the ambiguity of the term “diagnosis”. Sometimes it checks for errors using the utility ScanDisk, although rightfully it is also possible to include the SMART view.