If your hard drive began to behave strangely and there is any suspicion that there are problems with it, it makes sense to check it for errors. One of the easiest programs for a novice user to do is HDDScan. (See also: Programs for checking the hard disk , How to check the hard disk through the Windows command line ).
In this instruction, we briefly consider the capabilities of HDDScan, a free utility for diagnosing a hard disk, what exactly and how to use it to check and what conclusions about the state of the disk can be made. I think the information will be useful for novice users.
HDD verification options
The program supports:
- HDD IDE, SATA, SCSI
- USB external hard drives
- Checking USB flash drives
- Verification and SMART for SSD SSDs.
All functions in the program are implemented clearly and simply, and if an unprepared user can get confused with Victoria HDD, this will not happen here.
After launching the program, you will see a simple interface: a list for selecting the disk to be tested, a button with a hard disk image, by clicking on which access to all available program functions is opened, and at the bottom there is a list of running and executed tests.
View SMART Information
Right below the selected drive there is a button with the inscription SMART, which opens a report of the results of the self-diagnosis of your hard drive or SSD. In the report, everything is quite clearly explained in English. In general, green marks are good.
I note that for some SSDs with a SandForce controller, one red Soft ECC Correction Rate item will always be displayed - this is normal and due to the fact that the program incorrectly interprets one of the self-diagnosis values for this controller.
What is SMART http://ru.wikipedia.org/wiki/SMART .
Checking the surface of the hard drive
To start the HDD surface test, open the menu and select “Surface Test”. You can choose one of four test options:
- Verify - reads to the internal buffer of the hard disk without transferring via SATA, IDE or another interface. The operation time is measured.
- Read - reads, transfers, checks data and measures the time of the operation.
- Erase - the program writes successively blocks of data to disk, measuring the operation time (data in the indicated blocks will be lost).
- Butterfly Read - similar to the Read test, except for the order in which blocks are read: reading starts at the beginning and end of the range at the same time, block 0 and last are tested, then 1 and the penultimate one.
For the usual check of the hard disk for errors, use the Read option (selected by default) and click the Add Test button. The test will be launched and added to the “Test manager” window. By double-clicking on the test, you can view detailed information about it in the form of a graph or a map of the blocks being checked.
In short, any blocks that require more than 20 ms to access are bad. And if you see a significant number of such blocks, this may indicate problems with the hard drive (which is better solved not by remapping, but by saving the necessary data and replacing the HDD).
If you select the Identity Info item in the program menu, you will get full information about the selected drive: disk size, supported operating modes, cache size, disk type and other data.
You can download HDDScan from the official website of the program http://hddscan.com/ (the program does not require installation).
To summarize, I can say that for an ordinary user, the HDDScan program can be a simple tool in order to check a hard disk for errors and draw certain conclusions about its condition without resorting to complex diagnostic tools.