Along with fast development of information in 21st century, computers have been applied to commercially and individually aspects with a remarkable growing speed. So it makes various electronic information, namely, the data – - become important and valuable property which cannot get lost both for enterprises or individuals. How to guarantee the integrity, usability and security of storage data has then become a crucial question day by day. As we know, data recovery can be category in to 3 levels Level 1 Logical Data Recovery. Applicable for Hard Drives manifest itself as following symptoms: Partition Loss, File corruption Virus Attack, Accidental Disk Format, File deletion… Of all the levels, this is the most widely performed. However, according to the relevant reports only 20-30% percent of all the data recovery cases can be addressed using software tools alone. On the other hand, if software tools are applied alone the risk of losing user data increases significantly, which undermines any professional data recovery level. Recovery Time = 1 Day Price = $375-$550 Level 2 Firmware and bad sector Restoration Disk manifest itself as follows 1. HDD is identified incorrectly. 2. HDD starts the motor and then hangs. 3. HDD capacity is identified incorrectly in the BIOS, usually less. 4. HDD can identify correctly in the BIOS, but all sectors are displayed as bad sectors, or disk partitioning is impossible. 5. HDD is very slow in reading/writing/formatting. Recovery Time = 1 – 2 Day Price = $650-$1100 Level 3. Hardware or mechanical data recovery This level handles with hardware component issues which can’t be repaired but the only solution is to have the components exchanged using donor parts. Strictly speaking, Level 3 is part of Level 2: Firmware and bad sector Restoration. Such as Head stack problems, Spindle motor problems and Platter Alignment & spacer problems Recovery Time= at least 2 day Price= at least USD1000 A lot of data recovery companies focus on Level 1 and Level 2 data recovery, but not Level 3. Why do not they want to dig gold form Level 3? The answer is very simple, they consider that Level 3 hardware or mechanical data recovery is too hard to deal with. Actually, it was a challenge problem for all the DR experts in a few years before. Except we have to invest hundreds of thousands money into this field for establishing a class 100 clean room, technique problems can not be overcome. For Head stack problems: how to dismount the head stack and then reinstall properly without damaging the sensitive heads is the key. Spindle motor problems: only a few top professionals with plenty of practical experience can handle spindle motor problems Platter alignment & spacer problems: so far they are still a headache for most of us without proper tools However, since a few professional data recovery tool providers researched and develop into this depth level, some easy to use and cost effective tools was launched successfully and have been gaining a popularity from DR experts, IT technicians and Forensics. The tool can assure you to operate on your HD on a relatively stable table, making your job easier and more reliable. Also, maintains the original cylinder status by removing and placing each platter of the multiple platters together, so that allows you to change multiple platters without moving the platters out of alignment with each other which otherwise will result in data corruption. Class 100 clean room can provide a good environment for drive disassembly and head/platter exchange. But it is not absolutely indispensible. This job also can be done successfully in a closed clean space. If you want to know more about data recovery hardware, please go to Google search.

The loss of important data is actually a great loss for any of the companies. Other than this, you might even lose some personal data which was very important to you. Previously people had no other ways than to lament for the loss of their valuable data.But now the data recovery companies are helping them to get back their lost data. It is very important for any of the business institutions to make sure that they know the system of getting their data back after the loss otherwise they have to suffer certain amount of financial repercussions.It is found that most of the time the data is lost because of some problem in the hardware of the system. One of the best ways to make sure you do not lose your data is by maintaining a good backup routine. Some people store their data inside the machine but this is not so safe.It is better if you store your data in something which is removable and can be used in other systems as well. So even if your computer is damaged you can get the data from other computer by putting the removable system.But what if you do not have such a system and all your data is already lost. You need not worry because there are certain data recovery services available these days. You just need to find out the right one for yourself.Other than the services you can even get proper help from the software packages that ensure that you get back the important data. If you are in favor of using the software package then you need to make sure that you are quite computer savvy and you have enough time to do the job yourself.This is because recovering the data is quite a daunting task when you do it yourself. If you do not fall in this category then you will surely have to find out the best data recovery company in town.There are different kinds of recoveries possible, hard drive recovery, computer files recovery and so on. Sometimes you need a hard drive repair and hence you lose all the data. While choosing the company firstly you need to check out the facilities.You need to check whether the company has the right kind of equipment. After this you need to check out whether the company will suit your needs or not. All the hard disk recovery might not be of the same type.Finally you need to look for the expertise. You must make sure that the engineers of the data recovery company are specialized or not. Do not take any kind of risk in this field.