Data recovery from disk drives is a fairly complex process that goes down to the mechanical, electrical and electronic component levels of the devices. Nature and extent of damages, type of hardware tools used, effectiveness of software applications, size of data and other parameters play critical roles in completing the recovery process successfully. Technical expertise of the person who performs the recovery operation and the methods deployed during the process holds the key factor for completeness of data recovery. There are many risks involved with the process of data recovery which can eventually defeat the primary purpose of the efforts. It is with reference to these risks that you are suggested to opt for technically qualified data recovery expert, rather than depending on DIY procedures being advised all over the internet world. Here are the 10 possible risk factors which have been filtered and presented to you, based on the experience of our data recovery experts with clients. We recommend that you read through all the risk factors and try to find the similarities with the problems you are facing right now. Once you are clear you just need to give us a call and we will be there for you with our sophisticated infrastructure and trained technical team.
- Software version and compatibility
- Size of data
- Overwritten files and formatted partitions
- Serious physical damages
- Compatibility of PCB and firmware
- Technical expertise of data recovery person
- Device and drive characteristics
- Type of hardware tool used
- Native functions supported by recovery tools
- Algorithms used in the recovery process
Software version and compatibility
Data recovery from drives and devices is performed only when they become inaccessible to normal methods. So the software that you use should be compatible not only with the OS, but also the type of drive (SATA, PATA, IDE, SAS, SD etc.) and the nature of PCB & firmware. Simple tasks of recovering a few deleted files and restoring a formatted partition can be done by freely available open source software applications. But when you are faced with critical data recovery needed for your business or corporate needs, you should opt for OEM or enterprise level software which is available only with data recovery professionals.
Size of Data
If you are trying to salvage a few SMS, mail messages, photos or videos, the limited version of downloaded software applications work for you. Free versions have a limitation on the type of files recovered and their size. If you wish to go for deep scanning of all the logical partitions and sub folders in them, you need professional or enterprise versions of data recovery software. It is not just recovery of files, but linking them with the appropriate application and proper naming of recovered files are two other important parameters you need to consider. If you are given a set of 2000 files with random alphanumeric combination of names, you are lost again after data recovery. Enterprise level software tools available with the data recovery expert can solve this problem.
Overwritten files and formatted partitions
Once a file gets deleted from a partition or the partition gets accidentally formatted, you need to avoid writing anything onto that portion of disk. This may overwrite the previously deleted files with new ones and make the process of data recovery impossible. But the chances of accidental overwriting are more when you are using your mobile, smart phone or tablet. Even in such cases, a professional data recovery expert will be able to perform deep scanning with his hardware kit and recover the most critical data needed for you.
Serious physical damages
Dealing with bad sectors is considered to be biggest practical problem during data recovery from disk drives, flash drives, SD cards and every other type of storage device. The nature of bad sectors is that once they are initiated within a drive, they have a tendency to grow rapidly and disturb the equilibrium of data recovery to critical extents. DIY approach has been proved to fall short drastically in such cases. It is only with the help of professional hardware experts that you will be able to recover data to a considerable extent. Other types of physical damages like spindle breakdown, read-write head failure, and platter damages need to be fixed with the help of branded data recovery hardware tools alone, before any attempt can be made to salvage data from such drives.
Compatibility of PCB and firmware
When electronic failures in the PCB or short circuited firm ware ROM affect the accessibility of disk drive, fixing such issues is literally beyond DIY approach. It requires a professional expert and high end PCB exchange tools along with compatible donor boards and drives to set right the basic issues. In case you try to recover the data without rectifying these problems it may further damage the drive and make the data permanently inaccessible.
Technical expertise of data recovery person
The person taking care of mission critical data recovery operations needs to be technically qualified with sound experience. Mishandling of any delicate hardware component in the failed drive can result in wasting the drive and dumping the data without any practical possibility of salvaging. Making a wrong choice with software tool based recovery can also cause the data to be lost from the recoverable zone.
Device and drive characteristics
Hardware architecture of every drive varies based on the manufacturer. Scanning process plays a critical role in determining the exact nature of damage. If the scanner is not compatible to support native SATA characteristics of the drive and detect the PHY-States of PCB error messages, it may not be possible to get even the basic accessibility to the drive and the data. Only certified scanning software and hardware tools will be able to diagnose and detect the flaws precisely.
Type of hardware tool used
Any hardware tool which does not conform to the OEM and enterprise standards cannot guarantee hardware restoration and data recovery. Bits and pieces of salvaged files will be of no use for you.
Native functions supported by recovery tools
Apart from supporting the native Serial ATA characteristics, the recovery tools must provide complete compatibility for legacy files systems like FAT-16 and older types of drives with parallel ATA, earlier versions of IDE and native versions of SAS and SD drives.
Algorithms used in the recovery process
Algorithms are built into the software coding part. They depend on the core hardware architecture of the drive and work for specific devices only. For example a data recovery algorithm best suited for Seagate drive may not be applicable for Western Digital or Samsung drive. Type of drive also makes a significant difference (FDD, SD-Flash drive, USB drive and memory cards). Only OEM software tools with the professional hardware experts have the native algorithm built specifically for the drive from which you are trying to recover data.