SCADA Systems - Utility 101 Session with Rusty Wiliiams.




Operating Systems: Crash Course Computer Science #18

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Application operation means that there are data utilities in the system situation are
How to check the maintainability and performance of the hard drive Unexpectedly terminate or stop a single process. There may be many reasons for this non-standard behavior of the machine, one of which is a problem with the hard drive. Other signs that can identify problems include characteristic clicks, strange squeaks, and operations that are too noisy even under low loads. Naturally, in this situation, you should consider the health of the carrier. For those who want to check the speed or errors of the drive, we have prepared a separate article.
It is impossible, but there are programs for checking the hard disk. This means that users can skip the steps of logging in to the basic system and immediately start working in a convenient and friendly manner. There are enough applications to identify the problem and sometimes even solve it-below we will consider the most popular options. Before starting work, all running processes (except background processes) must be completed, which will allow you to more accurately assess the state of the hard drive. In addition, you should protect yourself as much as possible from possible power outages: Unexpected power outages can only interrupt the test at best, and in the most tragic case-damage an already suspicious drive. Maybe it's their turn, but you should always start with simple things. In this case,it is also a utility that cannot be used on all generations of operating systems. Maybe she will prove that everything is ok on the hard drive. In addition, with this program, it is very possible to restore the performance of the drive. Here, you need to find the hard drive that needs to be evaluated and then right-click its name.
Find a section in the window that appears on the screen-even if a non-original version is installed, the section will definitely be included in the list.
After the user confirms, the drive test will start. This process may take several minutes to several hours; if errors are detected, you will be prompted to correct them. Although the utility is not very reliable and may miss serious problems, it should not be ignored. If you do not find any difficulties at the end of the work, and the computer still freezes, you need to switch to another software-the best product is listed below. The first online utility that allows you to quickly but not accurately find out if your hard drive needs emergency help. As in the previous case, there is no hope for a 101% result-however, it is absolutely necessary (at least out of interest) to check the hard drive for errors. The calculations performed not only help to discover whether there are obvious defects, but also to check performance-this is especially important when comparing machines or assembling new machines.

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No need to switch from one window to another. Everything is very simple: By default, users use a clear toolbar to operate in a space. Run the application on a regular basis without the need for administrator rights and other permissions.
The main panel is used to display data blocks, drop-down lists and other elements. Pay special attention to the left panel-it contains the main buttons. And select the appropriate design option by clicking the mouse-maybe it won't hurt your eyes or troubles. the
If the default interface is not Russian, please open the adjacent section under the "Language" name. In the second list, users who want to know how to check the performance of their computer's hard drive will find their own version-the language change will happen without restarting the application or the entire system. Set in the first row on the left in the list, and set the number of passes to evaluate the state of the hard drive. As you might guess, the greater the number, the more reliable the output will be. On the other hand, unnecessary increase will lead to excessive inspection time. In order not to delay the process, nor to obtain obvious controversial information, it is best to use 4 to 7 times. other
Set the size of the virtual storage unit that will be forced to be written to the drive. Do not choose too large or too small; therefore, for flash memory, a value of 101 is appropriate; for hard disk drives, a value of 1-2 is appropriate. In the last list, the right-most list on the screen indicates the media that should be checked. This can be done by simply bringing up the disk list and clicking on the desired disk list, or, if the disk is not visible for some reason, you can open the media in it. All you need to do is click "Select Folder". Select one of the options for writing and reading. The mark indicates a random pattern entering the surface-it can better simulate the actual situation; it is a sequential process. Users who use the program to check the hard drive for the first time will not need any other details. In addition, it is recommended to start the mixed mode by clicking the "All" button.
This is not an unallocated area, but a blank area: if there is not enough memory, just delete unnecessary files.
The higher the number, the better the performance of the hard drive, and vice versa; damaged media will never get the exact same result. When using recording only, you need to monitor the speed-sudden changes indicate hidden or obvious problems. At the end of the evaluation, you can export the information to a text file-or just copy them. Both options are available in the menu-also, remember that after closing the window, the data will be cleared.

You will not be able to view the full scale of the checked sectors. This means that testing the speed of a hard drive is only the first step in the process of evaluating a hard drive. The second third-party utility in the list is also very user-friendly, free and easy to manage. It allows you to perform a more thorough inspection of the surface of the bay-it will almost certainly provide complete information about the hard drive. maintainability
Indeed, there is no doubt that you will not be able to fix it with a great app-you will only receive the information, and you will decide how to proceed. On the other hand, this means that you can guarantee that you will not damage the system-which is a plus for novice users. Using this application, you can evaluate not only the performance of any type of hard drive, but also the performance of flash drives and, if necessary, the performance of drive arrays. Just click "Start" and wait for the media of your choice to undergo a complete and thorough inspection. Another program with a similar name to the above, but with more functions. Using this utility, it will be very easy to check for errors in the hard drive 11, some people might even say-an exciting experience. Among them, the application displays the score and draws a graph of speed changes. In short, if you suspect a hard drive, you must install this utility.

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You can rescan the data at any time-just select the option of the same name in the section. Similar results can be obtained by pressing the keys shown in the figure above. It must be remembered that all information is estimated-inspections performed in the service salon may bring slightly different results.
evaluate
To switch from one media to another, just select the desired item in the list. In addition, you can do this by clicking the up icon or the side arrow pointing to the right. For more information on drive ratings, please refer to the bottom pivot table. Like any other files, they can be freely copied into any document.

Just go to the corresponding menu and select an available interface from the list. Check this box to achieve the same effect. As you can see, so far, there is no difficulty in managing the utility. If the hard disk is unstable for any reason, the program will notify you. The error code is 6; depending on the version of, the name of the command may be different. Although the application will try to simplify operations through data migration, it is not worth relaxing. If you find any problems, please copy the data as soon as possible. Keep it confidential first-especially important, then you need to replace the drive with a new drive. Don't delay the process: checking the hard drive is a fairly accurate indication of its remaining resources. Unlike most similar apps, this allows you to start using Russian immediately without setup steps. With the help of this utility, you can not only understand what is currently happening on the hard drive, but also temporarily solve the problem. However, as in the previous situation, you cannot delay changing the media-otherwise, you may completely lose important information on the disk. You can download the program in the,, link.

If you don't want to perform too complicated operations and want to evaluate the disk status from the running bottom, the first one is appropriate. Second-if you have the time and intention to make a complete bootable disk; as the name implies, it must be used before starting the operating system. The second option provides more accurate results, and also avoids possible failures and errors that cannot be eliminated under the running operating system. Perhaps, this program is one of the best solutions for users who are considering how to test the operability of hard drives for the first time. The app allows you to choose the hard drive to use, copy data (of course, when it comes to operating system version), and a nice help desk. In this section, you can find answers to most of the questions that arise during the review process.
This is a good application, fully suitable for professional and amateur discs. Many really useful functions are collected here, and the method used by developers to repair damaged areas can significantly extend the life of the drive. However, as before, you should not really rely on the utility: once you find a problem, try to fix it by replacing the media immediately. It is worth noting that when booting, the shell will start. To use it, the product must be written to flash memory. The application can be used with almost any generation of operating system, can be started quickly, and is distributed for free like those applications mentioned above. There is a small disadvantage: the utility for checking the hard drive is completely in English, and the interface cannot be changed.

Most likely, you will receive an archive on your hard drive instead of a ready image. Therefore, before considering writing to a flash drive, make sure to unzip the data-otherwise it will not be available in the program shell. In addition, you can download any assembly that contains the specified program from. The result will be exactly the same. If it is already installed, you do not need to perform this operation again), please use this application to open the file you just unzipped. It is much easier to do this by pre-establishing associations for each data type. Without this step, you will not be able to use the program to check the hard drive. The required items are in the subsections. When the recording window appears, click the drive letter of the connected flash drive in the first drop-down list to indicate it-otherwise, you may be forgotten about not recording important data on other media. Determine the recording method-you can keep the default settings or choose one of the ones shown in the picture. Take a moment-double check the correctness of the request again and click on the plate. Now, once the recording is successfully completed, it is Ranee enough to reboot from the prepared flash drive-for this you may need to check first-and start working. In, if you need other settings, please mark the removable memory as the first medium in turn. When the typical black utility window appears on the screen, just press the 2 key on the keyboard and use any available key to confirm the selection. Please take a minute to think-after this period, the program will start in the first mode, which is not very convenient for work. According to the capacity of the drive, select the hard drive to be checked in the new window. As in the previous step, in order to start checking for bad sectors on the hard drive, you must enter a number and confirm the request. If the drive is incorrectly selected, the easiest way to resolve the error is to reboot from the flash memory. To start scanning simply, without unnecessary hesitation and doubt, use requests. Instead, you can use the 4 button-there will be no difference in the results of these two operations. To try to eliminate the bad surface area at least temporarily, use the query. This method gives good results, but remember: absolutely all information will eventually be deleted-immediately and irrevocably. Users who are interested in how to check the status of the hard disk will find it helpful to see how the above commands are implemented in practice. After the introduction of the first request listed, the process parameters will be displayed-initial, final sector, blocks to be transferred, time to process each sector, the need to stop the hard drive after the end of the work, periodic inspections and the last complete wipe In addition to disk requests. Depending on the nature of the request, you may need to use numeric values ​​or response-on/off respectively. Do not touch the computer until the end of the work. No matter how long the process takes, you need to make sure that the power connection is secure and do not restart. As a result, a detailed sector map will be displayed on the screen-as you might guess, the defective sectors are highlighted in red.
On its own, this is not a problem, but a large amount of accumulation at a certain moment will greatly slow down the work of the hard drive. Therefore, knowing how to check for bad sectors in the hard drive will help you prevent malfunctions even at the stage where the response speed drops. They also cannot be considered problematic, but if you see too many dots of this color on the screen, be prepared to replace the drive. All of this indicates that it is completely impossible to receive a response from the block, or that the mark is missing-partial or complete. In this case, only one option is appropriate-erase delay, and then, if the state of the drive does not improve, simply erase.
Department, the situation is no longer complicated, you can use the operation at any time-unlike the previous operation, it will not destroy the information on the medium. By the way, it will not give a 100% result-all data will be completely erased, first of all pay attention to creating a backup copy. Checking and restoring the hard drive may take a while-first boot in normal mode and save important files to any flash drive in good condition. Therefore, after the evaluation, if you find a program segment that does not meet the specified parameters, please start the machine as usual and copy all valuable content immediately. Then, reconnect the flash drive and continue operating the hard drive-from simple reallocation of sectors to complete cleaning.
In addition, the reports presented in the previously selected way are not boards for advanced users or beginners. The above describes how to call the command. The number of errors caused by data cable problems. Ideally, they shouldn't exist at all. Unlike the previously described problem, this problem is solved by hardware rather than software: to reduce the indicator to zero, simply replace it with an available or cable. You have successfully figured out how to check the health of your hard drive using a universal application. In order to impress people, there are more options to consider-maybe you seem more willing to accept. In addition, the application can be written to a bootable removable drive as mentioned above-in this case, it should be started when the computer is turned on.

In addition to the standard options required for high-quality inspection of the hard drive surface, the utility can also display data and completely delete information-before performing the last operation, don't forget to backup! Select the program to check the hard disk, please stop following this product. Just download and install it, then launch it in the usual way. Among other things, since the app is launching, you can call it from the tray at any time-both methods are equivalent, you can use any method you want. The second option involves using the "Open Shell" item. After launching the utility, the general list of options displayed on the screen can be confusing-especially when you consider that the developer does not provide a Russian interface. If necessary, the next step you cannot skip is to select the carrier status to be evaluated. Just click on the desired item-there may be more than one, depending on your device. As always, you need to pay attention to capacity and assigned letters. If there are multiple letters, it means the drive is divided into logical partitions. After selection, the specified drive will appear in the "Processing" window. Now you can use various commands-with their help, you can check the hard disk for errors. Now, to use the functions of the application, select the desired option, enter a number-do not turn off the computer before the end of the work!

As with all previous examples, to use this program, you must first download and install it. The main menu is clear, it not only allows you to perform a quick assessment, but also to start erasing files and displaying complete information on the monitor. The only obvious inconvenience we managed to notice during our work was that some information was only in the window. However, you will be able to view basic, very important data-up to the block size and the number of revolutions per minute. It is easy to find because it is the first one on the list.
Now, to finally test the speed of the hard drive, set the mode (available in the right panel) and click "Start" to begin the process. The measurement data is displayed in real-time in convenient and beautiful graphics. Each data block has its own color mark: speed-light blue, and the time required to receive a response from the sector-yellow. Here you can observe the workload of the car-expressed as a percentage. There is no problem with performing such an evaluation after a long period of use and immediately after purchasing the equipment-at least in this way, you can evaluate the honesty of the seller.

At the end of the process, you can study the data in a convenient pivot table on the tabs. If the status of all check parameters is highlighted, don't worry: you will not have to replace the hard drive in the next few days. However, when changing the state to another state, it is necessary to look up the error code on and take measures to correct it if possible. Especially in the example below, the error is related to a poor quality connection or the condition of the data transmission cable-so you only need to replace or reconnect the contacts with a new cable.

Users who have a general understanding of how to check hard drives can start the extended scan process. It makes sense to forgo quick checks-of course, it takes less time, but it does not give such accurate results. The operating time depends on the capacity of the drive and the quality of data access. As a result, if the entire graph is covered by green dots-don't worry, everything is fine. If there is red, it is time to consider replacing the hard drive.
In fact, you can correct yourself for a period of time, or you can correct it with the help of a service center. However, all these measures are imperfect and cannot completely solve the problem. Therefore, do not overtighten-make a backup and buy a new hard drive as soon as possible! All the above software tools are good to some extent; they can be used for immediate or full analysis. However, you need a general solution-a solution suitable for both novice users and users who have managed to understand the complexity of evaluating hard drives. This is a hard disk checker that meets all the requirements listed here. You can use it under the operating system, or you can write it to flash memory and connect the drive during startup. provide
The first option is very simple and very suitable for initial verification-that is, an option that does not require labor and immediate error correction. In addition, even beginners can run the application in a production environment-it can be done in just a few clicks. Experienced users can directly use the utility during startup without any operation. This evaluation method can provide more reliable results, and other options can be used at the end of the process.
The result of the correct application is that you can not only identify potential problems and existing problems, but also speed up the operation of the machine, temporarily replace damaged blocks with backup blocks, which means you can prevent unexpected system failures and completely lose all storage The data. the
, Maintainability and errors. Of course, there are some simpler options-in particular, you can use the utility in to replace the hard disk that checks for bad sectors in Victoria with the same operation. Limited operating modes, no pivot table at all, from which you can find out the exact situation of the drive, and, equally sad, the lack of options for interacting with the department. Only the default option is available to you-you can select it or reject the scan altogether. Therefore, like many other standard procedures, it makes sense to replace this standard procedure with an improved procedure. You don't have to give it up completely-but to avoid disaster, don't be too lazy to install! Although the original application was published in English, it is not difficult to find the Russian version on the global network. In terms of functionality, it is no different from the original version, and it is easier to use-you don't have to be confused by complicated technical terms. In addition, only the latest version of this utility should be downloaded. The explanation is simple: there are at least some errors in every release-not serious, but not satisfactory either. Once determined, the developer will fix it-this means that each subsequent version is slightly better than the previous version. To launch the application for checking the status of the hard drive, simply unzip the archive and click on the title of the executable file-the number in its name changes with the version. Don't you want to refer to the downloaded catalog every time? Then it's easier-put the shortcut on the desktop or any other convenient place! Although the correct operation can be performed in standard mode, it is strongly recommended that you run the utility with administrator privileges-this will help avoid the need for subsequent restarts and re-evaluation of surface conditions. However, you can use the usual method-on some computers, it gives exactly the same results. Maybe before starting to work, the program will display several windows-about unknown errors, driver not found, management errors. You don't need to worry about them-just close each window and wait for the main window to appear. It is the first in the order, and it is likely to be automatically switched to it.

Now, click on the name of the hard drive you want to scan. The list may contain one or more drives-in any case, you will need to make a choice.

You can get a detailed form to inform the railway status. Before checking for errors on the hard disk, click Get-the data will be displayed on the monitor immediately. In the "Health" column, you can view the assessment based on the scale adopted by the developer: from the green circle (everything is ok) to yellow and red (to be vigilant). The number of bad sectors is displayed slightly to the left in the "raw" column.

And watch the results appear on the screen. Same as the previous example. Gray-no problem at all. Green-the reading speed is slightly slower. Yellow-potentially dangerous. The red hard drive is clearly problematic: if you find a red hard drive, you should quickly replace an available hard drive. Blocks marked with are not readable: they need to be remarked. On the other hand, if you plan to install a new railway in the near future, you can ignore this danger. Now, it is worth mentioning what the utility might take when determining the problem. Despite many facts, try to understand each mode-this will allow the drive to lose important data for a while. If you don't want to restore anything but just overwrite the block, the option is ideal. During this process, all data will be deleted. The second option "Restore" for checking the hard drive allows you to restore the area. How effective is still a question, but it is worth a try. The third is remapping, which involves replacing blocks with remaining new blocks. Finally, the fourth item, ignored, is a simple check without any further action. It is strongly recommended to use these modes in order, from "restore" to "erase"-otherwise, although you can simply restore them, you may be in a hurry to erase these blocks. Approximately 8% of the surface is reserved for reserves in hard drives-this is sufficient for temporary railways. All data that can still be read will be transferred to these areas-the areas will become inactive, that is, they cannot be used for subsequent write operations. This method will allow you to avoid accidentally creating very important documents in a known area. Great, so you can start scanning and post-processing. I have already introduced how to start it. Double check that the disk is selected on the first tab-otherwise, you will not be able to evaluate its status even if the other steps are completed correctly. Depending on the version of the utility program used, the hard disk speed check can be displayed as a sector table-this method is common in earlier versions.
It is convenient, easy to read, and does not overload an already busy processor. The curve gradually builds up-a few seconds after the start of the test, more or less processing results can be seen. To refuse rendering, simply uncheck the "Grid" box-click it.

Depending on the conditions listed above, this process will take from one hour to several hours. You can interrupt it by clicking "Stop", but it is not recommended unless absolutely necessary-it is best to let the scan and subsequent corrections end. In addition, you can use the "Pause/Continue" button to temporarily stop the evaluation-the evaluation button is located next to the evaluation button and it is not difficult to find the inscription you need. Through all the above operations, the performance of the hard drive can be restored within a certain period of time-if the number of blocks does not exceed 7-8%. Wait until "Done" appears next to each task you are performing.
As mentioned earlier, applications running in a production environment may provide incorrect information. To avoid incorrect work, please use the version-or choose one of the previously provided utilities. Good luck and good health! Unfortunately, it happened that data disappeared from the defective hard drive. However, if the system detects the disk, you can try to recover the lost information. If you have any questions about the inspection, or if you do not know the results in any procedure, please ask a question and we will try to answer it.
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