Data Recovery

Data stored on computers can get lost in several methods. To recover from such a scenario the primary option would be to restore from backed up data.Alternatively calling on the services of a specialist data recovery firm. Reconstructing all the lost data manually is typically not a viable alternative.

Reconstruction will involve:

Locating the original documents or specifications,
Large amounts of data entry, and
Serious disruption to the business during the reconstruction period

The cost of such an exercise can seem really high-priced, but with out it’s being performed a company’s viability can be put at risk.

This is the context in which data recovery becomes a substantial concern. Prior to we look at data recovery, let us take a brief look at how data gets lost.

How Does Data Get Lost?

Data stored on computer media can get lost in distinct ways, such as:

User actions such as deleting data unintentionally, carelessly, or even deliberately for malicious or financial gain
Loss of removable media such as CD/DVD on which useful data had been stored (see UK Revenue and Customs, DVLA, Banks and Building Societies etc ) /li>
Administration and other human errors leading to loss of beneficial data (e.g leaving primary data on a laptop not backed up which can be at risk of theft.)
Power supply problems leading to system malfunctions that trigger data damage
System crashes leading to incomplete sessions and loss of data
Hardware issues causing incorrect or incomplete write operations
Corrupted media or databases making recorded data unreadable
Natural disasters like fire, flood or earthquake destroying the pc facilities
Data loss caused by malicious external agents like viruses and hackers
Pilferage of physical media or equipment such as laptop computers

Studies indicate that practically 3 quarters of data loss is caused by hardware failure and human errors. It is in these cases that data recovery becomes a viable choice.

Data recovery is not achievable where the media storing the data has been lost and there are no backups readily available.

Preventing Data Loss

USER EDUCATION: Training your staff in numerous aspects of laptop or computer operations can minimize data losses, especially losses caused through human errors, which are a key trigger of data loss. Staff can be trained to take the essential precautions, such as backing up, antivirus checking, working by means of firewalls, but there should always be an individual in charge the security of data.

BACKUP: The impact of data loss can be minimized through well-implemented data backup procedures. The qualification “well-implemented” is crucial. Often, data backup is carried out in a routine manner with out checking whether a full data recovery is possible in case original data is lost.

Data backup may not be up to date. Data in backup media can prove irrecoverable owing to improper backing up or media corruption. It is crucial to make typical reviews and tests of both back up procedures and backed up data to make certain that the data is indeed recoverable if it becomes required.

Storing backed up data in a location away from the primary data location can support in such cases as a fire / flood or other natural disaster.

ANTI VIRUS & FIREWALL SOFTWARE: Anti virus software, if kept up to date, can help guard against virus attacks. Firewalls can stop most hackers from hacking into your systems.

REDUNDANT MEDIA AND WRITE OPERATIONS: Data is written to far more than one media device or location so that if one of them fails, the other can be employed to repair the damage.

Data Recovery

Where a correct backup system is in place, lost data can be recovered to a higher or lesser extent using the backups. The speed of such recovery will depend on the type of backup media employed. Where the backup media is on the web, such as in RAID systems, or Web-based third party facilities, data recovery can be fast.

At the other extreme, where data is stored on magnetic tapes at locations away from the primary site, data recovery could be a time-consuming exercise and may well want to be shipped or couriered to the primary location.

Where backups are not available or unsatisfactory, you have to depend on data recovery software or data recovery specialists. Data recovery software may be able to recover deleted files and repair corrupted directories. However, much more serious data losses are likely to require the services of data recovery organizations with expertise and specialized facilities, like Class 100 (Iso 5) Clean Rooms.

Data recovery firms extract the raw image from the disk and could try diverse tactics such as file system recovery, replacing damaged hardware components with compatible healthy ones, and reprogramming the firmware. These are technically involved and often delicate procedures requiring considerations to dust and electrostatic discharge (esd) in order to recover as significantly of the data as achievable.

Conclusion

Data loss can happen owing to several factors and is some thing that has to be planned against. Training your computer personnel, proper back up procedures and use of anti-virus and firewall software are some of the measures you can take to guard against data loss.

If these measures are absent or prove inadequate, you may possibly have to approach external data recovery specialists, with the expertise and facilities to recover lost data.