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Hard drive HDD

Hard drive HDD


Several myths about the HDD

  • In the drive HDA is a vacuum. This is probably the most common misconception. It is unclear why people think so, but this cannot be, in principle, because magnetic heads float above the surface of the disk being created by the rotation of pancakes airflow. Accordingly, if there is no air, then drive to work under the laws of physics could not. In fact, inside the HDA HDD ordinary air, purified through air filters with the same pressure as outside the HDA.
  • If the hard drive crashed a block of magnetic heads and the drive is knocking, it is necessary to remove the data swap platters into another hard drive is defective. This is the second most common misconception. Why do people think they need to rearrange the plates, but broke down just a block of magnetic heads - is unclear? In practice, the rearrangement of the other plates in the HDA is a complex and navsegda doable task. Even professionals have resorted to this method only in case of jamming of the bearing. It is difficult because, after rearrangement of pancakes they need to be centered relative to the axis of the shaft with preservation mesh discovery phase (the angle of displacement relative to each other drives). In most cases, much easier to rearrange the block of magnetic heads with a serviceable HDD for faulty because BMG most HDD models firmly fixed on its axis, and its center is not necessary.
  • There are special stands, where you can just directly from the platter to deduct from a damaged disc. Yes, these stands are available, but ... they are at most abroad, the cost recovery for such a stand would be tens of thousands of dollars; it is possible only for certain models of HDD; data recovery is only partial. Therefore, correct to assume that such a universal understanding in the general stand simply does not exist. It is connected with a few moments. First of all, modern drives of different technological teams and have such a thing as a translator, and even if you consistently deduct all sectors of the disk, as it should be obtained from the physical sector logic data structure Secondly, the data density of modern HDD is that reading data from the surface of the HDD can be just regular heads, and will not become confused if the plate with a scratch, in this case the head immediately failed.
Hard drive HDD

  • Overwritten data can be recovered by the remanent magnetization. The method of recording data in a modern HDD requires a complete reversal of the surface area for recording information. Because of the remanent magnetization is not there.
  • Government intelligence agencies like the Federal Security Service have at their disposal a super equipment, which is not in commercial firms. In fact, the FSB is also not sitting magicians, miracle-devices for data recovery in all cases; they do not. Moreover, very often people from the intelligence agencies themselves turning to commercial companies for data recovery help.
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Hard drive failures

Hard drive failures


Types of failure drives HDD

Hardware failures

According to statistics, hard drives are the least reliable devices in the computer as they contain mechanical, software and electronic parts. In our laboratory, all work with the HDA HDD are made in a special "clean room," so the recovery is at a high level of quality!

Data's recovery from HDD consists of several stages:

  • Winchester temporarily repaired, to the point where he can read the information;
  • With hard drive using professional software is a copy of the Process all sectors on the other completely defective HDD;
  • Further, if necessary, to the proper disk is analyzed by the logical structure of data and in case of damage, it is adjusted;
  • Then the information is already in its pure form is written to the new drive the customer.

Cases in which the restoration of files is physically impossible to produce:

  • when the information is completely overwritten other information.
  • When the disk platters are physically damaged (bent or scratched heads)
  • when the plates are demagnetized by information destruction.
  • After the intense heat (e.g. a fire) when the temperature reaches the Curie point, and the ordering of magnetic domains is destroyed due to strong thermal vibrations of atoms in a ferromagnetic (material covering plate HDD).

Logical failures
Hard drive failures

Consider the reasons for an amount of interest attributable to the recovery of data after a failure of logic:
Accidental deletion of files or incorrect formatting of the disk by the user. This usually occurs as a result of erroneous or unskillful actions. The most common case is when a people format the hard drive, install it again the operating system and a bunch of programs, and then remembered that they had previously been on this disc archive of documents and photographs. File recovery, carried out with the help of special software usually allows you to recover most of the information.

Damage to the file system disk. This usually disappears in a conductor logical drive, or does not have access to it. The reason for this may be a number of factors: the operating system crashes, the impact of viruses, incorrect extraction of the drive (in the case of portable disks). Very often, this happens on Flash cards in cameras, in which case the card is formatted requests it, do it certainly is not worth it, and the percentage that falls on the recovery of information in such cases is typically 90-95%.

Failure to consolidate and move partitions using Partition Magic. Not only, that, the program itself is not always successfully completing similar transactions with the movement of large amounts of information, so also can turn off the lights in the apartment or office and then the entire contents of the disk partition on which the manipulations were carried out will be available. Data Recovery can recover only part of the information, as in the program Partition, Magic is not the log and therefore, there is no way to do a rollback.

Dynamic disks. Periodically, there are times when, after reinstalling Windows users have lost the sensible partitioning your hard drive. On these discs is the logical structure of binding to a specific operating system, and then reinstall it, this binding does not allow Windows to see the new logical drives from the aged. File recovery allows you to return the information to 100%, this requires using a special software to rewrite all the files and folders to another drive, recreate the partition on the old disk and write back to him all the information.

The so-called problem of LBA 48, it usually occurs because of lack of support for the operating system hard drives greater than 137GB capacity. The error lies in the fact that the operating system disk to a misunderstanding of 137GB does not continue to write on, and begins to write in the beginning of the disk, thus overwriting it. It supports hard drives larger than 137GB in Windows 2000 and Windows XP is installed only if the corresponding Service Pack. For Windows 2000 requires Service Pack3, for Windows XP - Service Pack1. Do not connect a labeled large-capacity drive for systems that do not support 48bitLBA, since it leads to disruption of the file system and loss of information.
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How to restore file

How to restore file


How do we restore the data?

Our clients often ask us about how we restore their disks. In this article, I will try to explain these processes in more detail, but without revealing trade secrets. Once again, I want to warn all users from trying to separate self; HDD is the technically complex device with precise mechanics; recovery is possible only in special laboratories.

Bad blocks - the most common problem in modern drives. Manifested in the form of the strong slowdown while the operating system, messages appear on the impossibility to write or read files, logical disk's failure (if there were a few), or in severe cases, after determining the disk in the BIOS the computer starts to boot the OS or boot the computer reboots cyclically.

The consequence of this type of failure is typically manifested in the form of file system corruption. Serious consequence for the information is not usually. We do not use if you copy and restore Data Extractor. Our modern design, allow to remove data from your hard drive, which has been several million bad-blocks with little or no damage.

The technology of data recovery in such cases is to use a specific software with which is process all sector's complete copy of the defective drive to another (cloning). With this special algorithms are used up when the hard drive is not "brake" on the bad-blocks, and in determining the bad sector it immediately skips and jumps to the next, avoiding the loss of readiness (freezing) of the disk. Sometimes the cause of plohochitaemyh sector is damaged head; in this case, you must replace the entire BMG.

When the malfunction of the disc cannot be repaired or is not appropriate due to the time-consuming this process.
How to restore file

Failure of the electronics hard disk - the most common cause is an electrical breakdown of food. Disk when such a failure is not spinning, and the controller board can often be seen burnt items. The reason for this may serve as a awful power supply or a bad connection the power connector on the HDD. For recovery of hard drive and remove the data necessary to replace the electronics with the alike HDD, first overwriting the new controller is a unique service from the old firmware. The times when a board drives the same model have been already been used interchangeably. Self as the electronics can be fraught with the final release of HDD failure. This failure is often accompanied by burning out the switch, in this case, a simple replacement of the electronics board can repeat it out of order. If the drive just burnt out the switch, you must replace the entire unit heads from the same HDD.

Wedge engine bearing - this problem is often caused by physical impacts on the disc, such as the fall of HDD. This disc is not spinning, but publishes the quiet whirring sounds - it is trying to unleash the engine shaft. Trouble is divided into two cases: the first is when the axis of the shaft of the engine went crazy butt of a lock washer bearing, in this case, we are using special equipment remove the lock washer thereby freeing up the axis of the motor in the second case; the axis of the shaft went crazy on the surface of the sleeve bearing, and In this case, it is necessary to rearrange the magnetic plate to another HDA been working with preservation bearing phase (the angle of displacement relative to each other pancakes).

It should be noted that the second case refers to the highly complex and very expensive. In the vast majority of firms, platters rearrange one that does not accurately preserve the original position of the plates comparative to each other to restore the information eventually fails. We, however, have the technology permutation plates "batch method," i.e. wheels rigidly fixed relative to each other with a special device, and immediately rearranged without moving a single package that allows you to recover information for a given fault at 100% of cases.

Damage to the official firmware - this problem is widely manifested themselves on these discs as Fujitsu MPG and thin models of Maxtor. On modern hard drive's micro code problems with service are extremely rare. When such a failure drive is usually no longer determined by the BIOS, or defined it incorrectly. The principle of the HDD is that the first legitimate firmware loads the disc, and only then gives access to user data area. Restoring a disk in such cases is performed using special software and hardware systems (such as PC3000), which at the command can work with official firmware in the hard drive.

Sticking on the surface of MHA plates - for symptoms of this problem is identical to the occasion with a wedge bearing motor, ie drive is not spinning, but the issue quiet whirring sounds. However, the problem occurs mostly at most on notebook drives, and rarely on 3.5 "IBM or Hitachi is only on those hard drives, where the heads are parked outside the pancakes on a special stand outside (the ramp). Quite often, after sticking, head out of the system and to restore the data they need to be replaced by moving to the same HDD. The figure shows an example of the hard drive to open the stuck head. To solve this problem by using special tools reduce head back to the valet and then made to replace them. Inexperienced users, self-revealing HDA HDD, often try to do outlet head, but due to lack of necessary knowledge, tools and technologies. they simply bend the magnetic heads (because they strongly adhere to the magnetic platters), and they also scratch the surface of the HDD, which later removal of the data makes it impossible even for professionals.
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Pricing Data Recovery

Pricing Data Recovery


Pricing Data Recovery (Economics)
For several years, I have noticed that many clients do not represent the level of prices for data recovery services, not to mention the fact to understand where these prices come from and why the work, occupying a greater amount of time are cheaper. First of all, It should not be confused DataRecovery computer company and an ambulance. Professionals who are really well versed in the hard drives in Moscow, only a few dozens. However, the boys at the beck and call of a computer emergency, which rearrange the same pirate Windu for $ 50 a few thousand. It does not seem strange man devoted to the price list of any DataRecovery firm as at first glance seems to be it would be easier to determine the final cost of the work hours of standard-wizard + cost of spare parts, but not DataRecovery car service and part of the work carried out here in the semi-automatic mode, when the continuing involvement is not necessarily the master, all make the program (or a sector-based recovery logic copying the disk), and a part in the manual mode (electronics or HDA), but in the price list indicates the specific amount or range. From this, many customers make a simple conclusion that the duration and complexity of data recovery are the same in different cases, which is a major misconception. The cost of work depends on many parameters: the model and type of storage, type of fault, the degree of damage (from the pounding drive Western Digital 750Gb information shot several problematic than from burning Seagate Barracuda 40Gb). However, suppose we set aside the extreme, and consider two specific cases: HDD Toshiba 2.5 "40Gb with a defective HDA and the same HDD Toshiba 2.5" 40Gb fully serviceable, but accidentally formatted and then install Windows. In both cases, the problem is the same - to remove the information. In the first case, the whole process will be divided into two stages: the replacement of the sector-based BMG, and copy the information to another good drive. In the second case, it is necessary to scan the drive the program of logical data recovery and save the information in two modes: normal (with the structure and folder names) and in mode RAW - no structure to the partition information on the types of file extensions. So get down ...
Pricing Data Recovery

The first case: the replacement of HSA on the notebook drive takes an average of 10-15 minutes (there probably many very surprised ...), subsequently a copy of the Process all sectors in the DMA mode will take about 45 minutes, if the disk is found a large number of Bad-blocks, then the copy will have to PIO mode it will take about two hours, ie the average obtained from two hours before. For two hours, the customer will pay an average of 8000r. For work + cost of disk-donor, disassembled for parts (usually not less than 2000P.).

Case Two: Scan logic as usual 40Gb disk takes about an hour, just about an hour and takes about the preservation of information in RAW mode as one +1 = 2 hours, ie in the sum. We get 4:00. This work will cost the customer about 3000r.

If we count, even without taking into account the parts, we find that in one case, two hours valued at 8000r. And in another four hours worth 3000r. After thinking a little man may think that this difference comes from the fact that in the second case, there is no manual work, and everything is done the program in a semi-automatic mode, but in practice this is not the case. In fact, the value here determines the complexity of the work, and the complexity, in turn, is determined not by the time a number of artists who can bring such a case. And as the second case can recover almost any student of computer emergency or regular administrator, in the case of the faulty units of magnetic heads, all depends on the few dozen people in Moscow that the dispute can do it with your eyes closed. There are cases, which are subject only to the Guru at all, of which in Russia can be counted on the fingers, while the cost of data recovery and can do any high level to a few thousand $.

And once again like to emphasize that absolutely every case recovery in DataRecovery unique.

Mac Maxim (aka FormatCeft) 2007.
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Best recovery services

Best recovery services


How to choose a Data Recovery company (Chemistry)

One day about a year ago, it was time once again to visit my dentist. However, having heard many times from the familiar stories of their misadventures in this area, find an experienced doctor was a big problem. Handle in a well-known and popular clinic ... so not the fact that there is a lot of money does not prove a trainee or a person who thinks only of his wallet and nothing more, and relies on your luck and go at random in dentistry in the nearest house would be like to play in Russian roulette, where the lack of a single cartridge. Ultimately, the recommendations of a few people competent doctor has been found.

In the field of Data Recovery to the person who lost the data, there is roughly the same choice problem. That's only in contrast to the dentist, usually very few friends, have ever sought help from a data recovery firm. Now in this area there are quite a lot of competitions. About two dozen, firms engaged merely in data recovery and nothing more, and even a myriad of offices style "computer ambulance." I must say that the choice should be made only from specialized firms, because when you have a toothache, you do not go to a therapist. In such firms tend to have more or less decent equipment, and wizards have more experience. To assess the level of any company on the Internet site is impossible, since the good site worth a little, and write on it can be anything. Virtually, every site can be found on the label that all work is carried out in a clean room (100 Class ClearRoom) and even provided pictures of what that futuristic vehicles often look like a refrigerator with a monitor and a satellite dish on top. That's one of those unidentified objects:

In this case, no one ever from the clients of these plants have not seen unknown, and all requests to show this miracle of technology, on the other end of the tube that meets their special entrance to the laboratory is available only for employees. Furthermore, for promotional purposes on sites sometimes post photos almost non-medical operational, the level of cleanliness which are generally to the field of data recovery has nothing to do. In practice, normally the so-called clean room is an ordinary room with absorbent as a sponge carpet dust on the floor. A desk, which is usually replaced BMG in three layers piled various parts and other junk. Of course, all this, the client does not see. It is worth saying that this class 100 clean room in Moscow, no. That is, there is, in principle, as well as on the streets of Moscow, there is no car in Formula 1. Our clean room just does not have a class 100. But then the same must be said that the advertised everywhere, and it is written on many sites is necessary for a successful recovery level of 100 Classes ClearRoom actually needed only for the conditions of production, but not for the needs of HDD repair and data recovery.

So how, then choose a company, if you cannot navigate to the sites? My opinion is that the main criterion for selecting the firm, is a phone call and the conditions under which the firm operates. First, a good indicator if you're on the phone to answer an experienced officer who knows all the details of the recovery process. In such a firm is usually always possible to obtain technically competent answers to questions and, in extreme cases, will be with whom to ask for details, but from the Secretary of nothing more than stock phrases: "We have the base drive is listed in the" you will not here. A good company must meet the following mandatory conditions:

Firm must be highly specialized, ie, only deal with data recovery, and anything else like computer repairs and installation of Windows.

Free diagnosis for the duration of not more than an hour / hour (for which it should be read below);
paid work only after their implementation, but the drive-donor usually prepaid for any outcome of the work - this is common; agreed medium term recovery in normal mode should not exceed a few days;
No appointment should not be, otherwise it is said that the firm will be very long-term recovery;
clarify whether the firm by bank transfer, as This can be cut off completely unofficial and left the office;
The site shall be the firm price list page in which specific price or range. However, if the price on this site is not at all, it has to reason to guard;

Drive-donor (if necessary) should provide a firm and not the customer. Even if it is not available, then the search must also deal with the company. It is best to specify in advance.

So, if you provide details on the model disk and symptoms of malfunction, the normal company will be able to master on the phone to call the probable cause of failure and the estimated cost of removing the data.
Best recovery services

Here is an example of a normal dialogue masters (M) and customer (W) at:

(B) - Good afternoon, I need to recover data from hard disk.
(M) - Hello, and what model you have and the amount of disk space and what are the symptoms of failure?
(B) - Seagate Barracuda 7200.7 drive, 80 Gigibayt when plugging it into your computer it starts to click.
(M) - most likely you have a defective block of magnetic heads.
(E) - and how much it will cost you a disk recovery and how long will it be?
(M) - value of the work of 8000r. + Cost of disk donor who would have to disassemble the parts for about 1500R. Such work is usually done during the day.
However, in any case, the exact amount can be determined only after the diagnosis, which we have been free.
(E) - and when you can drive up to?
(M) - at any time indicated on the site without an appointment.
(E) - and you are by bank transfer?
(M) - yes, of course.
(B) - thanks to you.

However, unfortunately all this cannot guarantee 100% that all work will be performed in a high-quality pre-specified amount and timing. Since the beginning of the March of democracy across the expanses of our great country in the '90s, the people greatly exacerbated the desire for two things: greed and freebies. It not spared a desire and the area Data Recovery, and it was as much as people want to get their data at virtually no cost, just as much and some repairers want to fill their pockets with not really steaming. And everywhere grow up like mushrooms are small (and not) with various forms (LLC, Inc., PI), but it officially, but in fact, most of the main offices of the legal form of a BSS (Society for Unrestricted irresponsibility). Therefore, the history of vandalism, followed by extortion drives with several times overpriced no, and float it on the forums on the Internet, the stories of repairmen. And recently they have come up so often that the risk of "running into" very high. And as vandalism to prove almost impossible to drive, then the consumer in this market segment is not absolutely protected from such deception. And on this bait across not only the fans of freebies, because firms practicing in the sabotage of the prices are very different. As it usually looks like, look at a specific phase-out example.

The customer calls the company, said conditions and agrees on arrival. The client brings the disc and leaves it on the diagnosis on the day. And it is usually his biggest mistake. One day is not very clear at the Master's hand can easily restore the hard drive, copy the data and completely disable the drive, so that nobody else will be able to remove the information from there, there are ways to do this big set., Although, in reality, in most cases, an experienced master rather half-hour that would connect the drive to your computer and symptoms to determine the fault, but for half an hour to restore the hard drive, copy data from it and then deliberately damage the disc will be just physically impossible. Of course, there are exceptions, such as various devices (mp3-Players, USB-boxes or laptops), of which sometimes an only drive takes over an hour. However, in such cases, the customer can first remove the disc (unless you can). Moreover, we even ask such clients to get themselves out of such hard-drives as the time it sometimes takes longer than the recovery of the drive. Another question of course is what prevents said after the diagnosis of the normal price, but after the client leaves the disk to restore, to say that everything is worse than originally anticipated and has instead called 8000r, let's say, 50,000 ...? Yes, in general, did not interfere. No, of course, such cases are, for example, when one head to the donor drive out of order and need to disassemble another drive, but then the amount will increase by only a few thousand, but not significantly. In the West, everything is easier, there is a hard contract in which the prescribed time, cost and a penalty in the case of late bookings. Of course, you can, and require to conclude a contract with you, which will be strictly spelled out the price, but we should not forget that all good value for money, and that's why companies in western DR cost include all possible costs. That is, exposed to the maximum price, and if needed to remove these 50 donor drives, they will be purchased and demolished, but what if you do not need, then the DR company even better, you're still paying for them. There are extremes, and on the other hand, when the customer wants, and contract and a confidentiality agreement and to be present during the work, but do not want to pay more than $ 100 and those by bank transfer. Therefore, clients should also understand that the steeper the firm, i.e. the further it has an office, the better equipment than qualified, the more she can give you the different pieces of paper for reporting the longer legs and shorter the skirt the secretary of the reception, the more expensive it will cost us in this service.

Let us return to our case, after the hands not clean the master in a relaxed atmosphere shot and killed a data disk, it calls the customer and says that the disk is bad, very serious damage and reconstruction costs will be high. After that, the customer gets a choice: pay the inflated amount or deliberately left without information.

This is a typical pattern of self-harm, there are more sophisticated, or vice versa more direct and Frank; it depends entirely on the particular firm and its level of arrogance. And if anyone thinks that such things do only a small basement office, they are mistaken. Many of the victims and the promoted brand. Here is an example of the practice. In one firm, where he works my friend broke a SCSI hard disk, and not thinking leadership decided to give the disk to restore to the branch of one of the "world leader in data recovery," as they called themselves. For obvious reasons, the company name I cannot reveal, but I can say that it is directly related to a very popular program for data recovery. So after the diagnosis of a fee, has been declared cost of the work - about $ 10,000. Naturally, the company refused to restore (it was a budgetary organization) and asked to report, which was written that they guarantee that no one but themselves to remove the data from this disk cannot, and later became clear, and the reason for this confidence - in the disk has no magnetic plate. In general, the story is over and nothing more, but I have heard that it was not the only case of its kind associated with this firm.

Of course, I must say that there are exceptions to the rule, and when the amount and terms may be increased by several times or when the costs of the works are hard to identify until they are completed, for example:
- In complex RAID arrays;
- With disk SCSI, Western Digital, Quantum AS, Maxtor 540, Maxtor 740, HDD 1.8 ", Microdrive, etc.;
- Damage during strong magnetic disk platters (Bede, gash);
- After the non-professional intervention;
- Wedge stem from a fall drive;
- Drives larger than 500Gb.

However, the experienced master will identify such cases in the diagnosis, and likely so just say that the recovery will not be cheap.

In general, Data Recovery, each case is unique, so the approach to each case must be individualized. However, in any case normally cost of data recovery from hard drive SATA or IDE interface is rarely more than 15000r. in normal cases and 30000r. in severe (e.g., a wedge Seagate Barracuda or failure of the BMG with Western Digital).

Unfortunately, the above pitfalls are not major in Data Recovery; they are just the tip of the iceberg The main danger is perhaps the company, and the master does not have sufficient experience and unable to restore the disk in the case of medium and high complexity. However, they had often easily taken for the execution of such orders. Frankly, I do not know on whom (or what) train and hone their skills dentists, but I can say that in the " recovery "inexperienced masters train is on the client hard drives brought them to recover. However, this is very bad because not only that they are his unprofessional actions can hurt so drive is not quite so still, if the data is removed from them does not work, they probably will tell the customer that it is impossible to do, in principle. Although in practice, if a classified hard drive to another firm, where a team of true professionals with years of experience, in most cases to recover the information will be possible. Very often, these "master lomastery" do this; you wonder just what their ingenuity, in fact, everything is done is usually much easier and faster (unless of course ... How to know).

Taken from one of the computer sites on the Internet, where the authors describe the change of the magnetic head on the notebook Samsung, accompanying all the explanations with photographs.

The authors have taken an ordinary box, covered it with Plexiglas, made slits for the hands and arms themselves dressed in medical gloves. That is, created a kind of clean room. On the part of the uninitiated in this area of ​​human, everything looks more or less correctly. However, from a professional is exactly a guide entitled "How not to have to rearrange the MHA." Make such manipulation in a confined space is very uncomfortable; it is better to do then is just on the table. Why gloves do not understand. In medicine, they need to protect against different microbes and bacteria, but not surgery Data Recovery, Hard Drive not afraid of tetanus. However, the inconvenience of gloves increases the risk of harm to the hard drive. One would assume that the gloves are needed that would not leave fingerprints on the disk platters, but worthless to the master, who lappage plate during manipulation of the mechanics. A professional repairman movement is so polished that it never touches the disk platters, of course except for rare cases associated with the rearrangement of the plates themselves in another HDA, but that's another story. However, to protect themselves from contact with such as Kulibin is more difficult because have a clean room or not, still in the premises you are unlikely to be allowed as open days, in contrast to McDonald's in the Data Recovery does not happen. But if the choice of eight firms to follow the rules described above by me, by such a master your disk will not fall, because such a disgrace, perhaps found only in the wide-computer companies that are "live" not by Data Recovery Services and hang their advertising on the doors of subway cars and porches of houses, where the same people restoring the data, and the order in the next went clean out clogged the toilet or have any, or other types of "male help." In such firms are usually nothing more than how to recover deleted files with Easy Recovery does not know how.

I still would like to say a few words separately about the courier delivery to Data Recovery. Although we have, and there is a service courier, but I personally do not advocate this. For all the seeming comfort here can come up a lot of nuances. Well first courier service itself has violated the principles of safety when choosing a Data Recovery company, because of the courier you do not specify, which will take away your hard drive, and that it will be there to do, because there is already a half-hour about any diagnosis we cannot go, Drive will remain firm with a much longer time. For Data, Recovery company is also creating a lot of additional problems. For example, how do you imagine the process of transferring the regained data, because the messenger in this case must be technically prepared, to be able to connect the drive with the data of the customer, to show the recovered data, explain what and where is written to bring the documents to the customer, get to his money? This is somewhat beyond the scope of duties of a courier. And the naive one who thinks that as a courier for him will come the master himself to restore the data, which to date with all the details. Professional data recovery engineer will never go to the customer, because paid for his time. Therefore, experts are working on the road only in unique cases where nothing is impossible, and such services are more than one thousand $. As a result, if a company offers data recovery services onsite at low prices, services, know that you will come to a student from the "Computer Emergency" and the maximum that he can do is to restore a deleted file using free software downloaded from the Internet. All other more complex cases require availability of spare parts, tools and other equipment often nonpaged pool. I'm not talking about when you need to open the HDA HDD. For example, we offer our customers a courier in one direction simply, as transfer the recovered data to the client must personally verify the completeness and integrity of recovered data (a must), and full it can be done only in the laboratory.
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Pricing Data Recovery

Pricing Data Recovery


Pricing Data Recovery (Economics)
For several years, I have noticed that many clients do not represent the level of prices for data recovery services, not to mention the fact to understand where these prices come from and why the work, occupying a greater amount of time are cheaper. First of all, It should not be confused DataRecovery computer company and an ambulance. Professionals who are really well versed in the hard drives in Moscow, only a few dozens. However, the boys at the beck and call of a computer emergency, which rearrange the same pirate Windu for $ 50 a few thousand. It does not seem strange man devoted to the price list of any DataRecovery firm as at first glance seems to be it would be easier to determine the final cost of the work hours of standard-wizard + cost of spare parts, but not DataRecovery car service and part of the work carried out here in the semi-automatic mode, when the continuing involvement is not necessarily the master, all make the program (or a sector-based recovery logic copying the disk), and a part in the manual mode (electronics or HDA), but in the price list indicates the specific amount or range. From this, many customers make a simple conclusion that the duration and complexity of data recovery are the same in different cases, which is a major misconception. The cost of work depends on many parameters: the model and type of storage, type of fault, the degree of damage (from the pounding drive Western Digital 750Gb information shot several problematic than from burning Seagate Barracuda 40Gb). However, suppose we set aside the extreme, and consider two specific cases: HDD Toshiba 2.5 "40Gb with a defective HDA and the same HDD Toshiba 2.5" 40Gb fully serviceable, but accidentally formatted and then install Windows. In both cases, the problem is the same - to remove the information. In the first case, the whole process will be divided into two stages: the replacement of the sector-based BMG, and copy the information to another good drive. In the second case, it is necessary to scan the drive the program of logical data recovery and save the information in two modes: normal (with the structure and folder names) and in mode RAW - no structure to the partition information on the types of file extensions. So get down ...
Pricing Data Recovery

The first case: the replacement of HSA on the notebook drive takes an average of 10-15 minutes (there probably many very surprised ...), subsequently a copy of the Process all sectors in the DMA mode will take about 45 minutes, if the disk is found a large number of Bad-blocks, then the copy will have to PIO mode it will take about two hours, ie the average obtained from two hours before. For two hours, the customer will pay an average of 8000r. For work + cost of disk-donor, disassembled for parts (usually not less than 2000P.).

Case Two: Scan logic as usual 40Gb disk takes about an hour, just about an hour and takes about the preservation of information in RAW mode as one +1 = 2 hours, ie in the sum. We get 4:00. This work will cost the customer about 3000r.

If we count, even without taking into account the parts, we find that in one case, two hours valued at 8000r. And in another four hours worth 3000r. After thinking a little man may think that this difference comes from the fact that in the second case, there is no manual work, and everything is done the program in a semi-automatic mode, but in practice this is not the case. In fact, the value here determines the complexity of the work, and the complexity, in turn, is determined not by the time a number of artists who can bring such a case. And as the second case can recover almost any student of computer emergency or regular administrator, in the case of the faulty units of magnetic heads, all depends on the few dozen people in Moscow that the dispute can do it with your eyes closed. There are cases, which are subject only to the Guru at all, of which in Russia can be counted on the fingers, while the cost of data recovery and can do any high level to a few thousand $.

And once again like to emphasize that absolutely every case recovery in DataRecovery unique.

Mac Maxim (aka FormatCeft) 2007.
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Frequently asked questions about computers Data recovery

Frequently asked questions about computers


FAQ (Frequently Asked Questions)

A. does you have an opinion of PC3000 that would remove the information directly with the pancakes?

To start one needs to understand what is meant by "stand PC3000." If someone thinks that PC3000 is, a device which can be inserted in the pancakes on the hard disk and read information from them, then it is not. PC3000 is a software-hardware complex for the repair of storage HDD. Moreover, the hardware part of which is the at most map of copy-protection software the main part and shall have no other function, the card is inserted into the PCI slot on the computer, and it has two IDE ports for connecting a faulty HDD and feed it special technological instructions that could be served, and through an IDE port motherboard, if it did not require the protection of software from piracy. The same thing as a "stand" as well as it does not actually exist Modern hard drives have a very high recording density, which allows you to read data from the drive plates' only full-time heads in normal HDA. Currently, some companies have attempted to create a universal "stand," but only managed to read the data with a deeply old and the now used by a small storage capacity with very low densities.

Two. I went down head on the disk; you will remove my pancakes and inserted into another drive?

The belief that the hard drive with a faulty mechanic's specialists to recover data permute "pancakes" with information in another good HDA is very common, but it is a mistake, and arises primarily because of not knowing the design HDA HDD. As it is usually the hard drive fails BMG (a block of magnetic heads) and is much easier and safer it is to rearrange it from the drive is the same model (the donor) to a faulty hard drive with data. Many users are trying to save themselves and take to rearrange the pancakes, and then bring the disc with the words of experts, "and I have, why it did not work ...". This is because the hard drive is a device with a precision of high-precision mechanics, and any interference in its original design entails a minimum of deterioration of its characteristics. BMG in all HDD is rigidly fixed on its axis and has only one position in the assembly. In magnetic disks on the same axis of the engine, there is a certain play and when they may need to permutation alignment relative to the axis. And if a few platters, in addition to the alignment you want to keep the so-called "phase," i.e. to keep the angles of rotation of the magnetic disk relative to each other until a millimeter. All this is much more complicated than a permutation of BMG, so manipulations of the magnetic disks are made only as a last resort when other methods cannot remove the data, for example, in cases of jamming of the bearing walls of the engine to the shaft axis.
Frequently asked questions about computers

Three. Why after replacing the burned electronics board on my hard disk - the information is not saved?

First of all, you need to understand that repairs the hard drive and restore data from it is a fundamentally different process. Data's recovery is a more complex and time-consuming process, which spent more time, and he has a high cost, respectively. When repairing the data storage in most cases are not stored as the drive is reduced to factory condition by low-level format of the surface. However, even if we replace the electronics board to test-drive the low-level tests the read / write, which in any case, affect the crucial information on the disk.

4. And you can come to us and to restore the data in our office?

Run quality of data recovery is possible only in specialized laboratories because it requires special unmovable equipment, tools and software. And if you, in any company offer a service "recovery from the customer," then most likely you are to come from the students 'computer assistance', which at best will run on your defective drive some free Recovery program and try to recover the data directly on the same faulty drive against all the rules. The consequences of this "recovery" is not always possible to correct even the professionals. So if you need high-quality data recovery services, please contact immediately directly to the professionals. In good companies, you provide a service courier delivery of your drive if you cannot drive themselves and, of course, you will be guaranteed full confidentiality of your information.

Five. Why Data Recovery in the presence of the customer is more expensive; I just sit around?

The process of recovery involves the use of "closed" secret technologies that will somehow have to disclose to the client in the recovery process data in it. In the second period of recovery is difficult to predict, sometimes in hard cases, it may take several days and, of course, the customer cannot be present in the lab all the time. In addition, there is a psychological aspect as a "standing behind," i.e. work in the presence of the customer master more difficult it is to aggregate all these reasons, the cost of data recovery in the presence of the customer specified in each case individually, and at least twice the cost of recovery in normal mode. It should be noted that in many Data Recovery firms generally do not have data recovery services in the presence of the customer.

6. And you can write my 100Gb of data on DVD-RW?

We produce the recovered information recorded on DVD discs, if it does not exceed the amount and speed of 10Gb discs with at least 16x. Write data to a larger volume of the CD drives are not as rational sometimes it turns to quickly retrieve information from a failed drive, then you burn it to a large number of CDs. That's why we ask customers to provide us to write the recovered data to another good drive or offer to buy a new hard drive from us.

7. Why do you say that on my disk is corrupt mechanics, even though I have not even dropped out of the case is not pulled?

What would the hard disk have failed his mechanics do not necessarily drop and kick their feet? Mechanical damages to the HDD are the result of defective or physical wear and tear, imperfections in manufacturing technology, etc. At the same time a drive can work a few days of purchase, and another from the same party can work for several years. And at the time of purchase of any tests sometimes cannot determine. How many will last drive?

Eight. And why, after recovering data from my disk will not work?

In many cases, damage to the user's data is due to damage to the mechanics of the drive on which they are stored. And this in turn is connected with its opening and replacing mechanical components for data recovery. And as the calibration of the drive and causing produced at the plant after the HDA the assembly, any interference with the mechanics of the disc leads to a strong deterioration of its characteristics. Besides just not deserving it, trust the data-storage disc, which is already out of the previous regime. Another aspect which speaks in favor of buying a new disk instead of repairing the aged one - it's worth. Because the cost of the fresh HDD is almost the same as the cost of repairing the old one.

9. Is it possible to repair my hard drive, which beats?

If your disk emits sounds of knocking, at the 95%, it went down a block of magnetic heads, what would it be to repair, buy and dismantle the parts exactly as a new HDD? There is in this sense?

10. And I myself buy at the store a block of magnetic heads for HDD, that would not have to disassemble the new drive and reduce thus the cost of data recovery?

Unfortunately, manufacturers do not provide repair and restore your hard drive by outside organizations. In this regard, no spare parts manufacturers do not sell, and the hard drive is a complete maintenance-free device.

11. And you can read data from my drive by the remanent magnetization, after I had it completely overwritten with other data?

Modern hard drives have a very high recording density, which does not allow any means to recover information on the HDD, which has been overwritten. And it cannot be done anywhere - in any commercial companies or in laboratories, special services, such as the FSB.

12. Which is better to buy a drive now that would have been the fastest and most reliable?

At the moment, the speed and reliability of nearly all brands of hard drives are the same. You can only select brand discs from which to remove the information in the event of his failure is more difficult and expensive. More information about this aspect you can read on our website under "Theory."

13. You do warranty repair or storage chargeable repair Flash-player?

Warranty repair does the organization in which you bought the disc. We produce only data recovery from faulty drive.

14. And you can read data from my drive, after I had it completely disassembled and moved the pancakes on a different drive, but it somehow did not work?

In most cases we can, if you do not scare the cost, because recover data after a disk is not analyzed the professional is much more difficult. And usually, if a person examines the disk itself, the information, he was not very expensive because chance of losing it all in such cases grow.

15. Why do you have such a range of prices for data recovery because all drives are almost the same?

First, although all drives HDD and have almost the same shape and characteristics, but many are very different internal structures, there are drives that are faster and easier to recover, there is, and vice versa. For example: there are wheels with full interchangeability of BMG, and there are models that are very difficult to find a suitable donor. However, the main aspects of the difference in cost recovery are usually the cause of failure and degree of damage. Each case output drive of the system is unique, and each case must be expended at different times to restore it.

16. If I have a failed hard drive with just one file, it will be cheaper?

No, the cost of data recovery does not depend on the number of files you need. When restoring data from disk, we always do a full sector-based image of a faulty HDD, ie we copy the files and the user, and operating system files and the empty space on the disk. This is necessary primarily to the fact that if there is a logical problem with the file system to work with data already on our good drive on which the copied image.

17. Why do you say that you have low prices, even though I promised elsewhere to recover data even cheaper?

Cost recovery in Moscow in different companies about the same, but there is a big difference in quality of services provided. You can try to call the different companies and compare the terms and price, whether you can recover your data somewhere else for a day without payment of maturity, if they have a "clean room" to work with HDA HDD, and if they can show it to you? In addition, unlike us, many companies in the price quoted on the website do not include taxes and cost of spare parts, and it will be at least another 50% to the cost of recovery. Moreover, in recent years in the field of data recovery, acts of sabotage when the first telephone call low price, then destroy the data on your disk and ask for them as early as 10 times as they have no one else will not be able to recover. At the cost of services to private masters will be even lower, because they do not pay for office rent and not buy an expensive professional equipment, but in this case, your drive will be most likely open in the kitchen on her knees. Are you willing to risk their data for the questionable economy?
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Data recovery services

Data's recovery from HDD, RAID arrays, flash drives and memory cards.

recovering data from 3000 rubles.
RAID recovery from 6000 rubles.
Restoration of the stick from 1,500 rubles.
Repair of hard drives from 600 rubles.
Repair motherboards from 500 rubles.

Fault Diagnosis free of charge.

In the section " Recovering data from hard drives / HDD / "
Describe in detail the most basic reasons that may lead to loss of good health or damage to the hard drive HDD. Furthermore, the main effective methods by which you must use to recover data. Provide a list of works to be performed to restore the data:

When you exit the building block of magnetic head's Hard disk.
With the destruction of the magnetic layer hdd (bad-sector)
Recovering HDD failure of the operating system running on a hard disk
Restore hard drives Seagate 7200.11, Seagate 7200.12, Western Digital / WD /.
In the " Data Recovery RAID arrays "

Describe the main reasons for which may be damaged RAID array. Please note that the recovery and RAID recovery efficiency of the server with software and hardware may vary. Data's recovery from RAID takes longer than retrieving information from the hard disk. Accordingly, such a procedure will cost more.

In the section " Recovering data from flash drives / flash / memory cards. . "
Present the basic model of memory cards and flash drives. I have also provided a comparison of reliability of data storage on USB flash drives, memory cards and hard drives. Indicate the main reasons for which can break your flash drive, and describe in detail all the possible fault current of your memory cards and flash drives.

Recovering data from flash memory chips
Working with the BGA chip, USB flash memory
Restoration of mechanical problems
In the " repair of motherboards. "
A list of services for the repair of the motherboard. Shown are typical motherboard failure and the possibility of eliminating them.

Replacement of the south bridge on the motherboard
Replacement of damaged interface connectors on the motherboard
Replacement of burned chips on the motherboard
Replacing the capacitors on the motherboard
Flashing the BIOS on the motherboard
Hope the information. here will help to save the data you need, as well as your time and nerves.

Note:
If you are not confident in their capabilities and are not patently identified the cause of the problem hard drive, why not running a raid array that does not open flash drive - do not attempt to perform data recovery on their own, unless you clearly do not represent the consequences of your actions. This can lead to complete loss of data, or seriously impede recovery.
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