One of the most unreliable component of any modern PC - a hard drive, also known as "hard drive, HDD, screw, hard, hard."According to statistics, most of the service call was caused by problems with these devices.It seems to be: given the current level of development of computer technology, the user does not need to know how to check the hard drive.Still, since its inception was not one decade, and "childhood diseases" must be overcome.In fact it is not, and the owner of the computer often have to deal than to check the hard drive.The reason is simple: no fundamental changes in the principle of the "screws" have not been made: all the same disks coated with magnetizable material;flying over them frame with heads;stepper motor mechanism and a rotating spindle.Of course, the rotation speed was increased by raising the recording density, some other characteristics are improved.But all these improvements - evolutionary, so any changes in terms of reliability can be expected.Exception - hard drives based on solid-state memory (SSD), in which there are no moving parts.Accordingly, the question for them, than to check the hard drive, it is not relevant.At least in the usual meaning of it.
owners also more affordable classic "hard" just need to know how to check the hard drive.Improper shutdown of the operating system, shake or overheating - all of which can result in unreadable areas of a magnetic surface, the so-called bad-blocks (BUD, bedov).Recording on a data sector is impossible, however, as the reading.The information in them, manage to restore not always.The "new" hard drive, the surface of which contains similar problems, do not buy.A basic, which has carried out the restoration of broken sectors to better prepare for replacement.
How do you know the state of the surface?Nothing complicated about it.Enough to run a specialized program, specify the desired drive and see the information about it.It is also possible to perform the test, which gives more accurate results.
most simple check of the hard drive is based on the study data table SMART.Each modern HDD built-in firmware, which continuously records any changes in the monitored parameters: temperature rises above acceptable - the counter is fixed;there was unreadable sector - this fact is recorded.
Windows users need to download, install and run the program HDDScan.Specify the correct hard drive (it must be connected to a PC) and click SMART.For broken sectors responsible option RSC: here red sign indicating the presence of problem areas.The greater number under Value, the worse the condition.
more accurately determine the wear and tear, you can use the test.You must select Verify and click Start.The more dolgochitaemyh areas - the worse.Map shows the surface here - in the largest window.This test is the most informative of all.It can also find application in Victoria.
