Sun, 02/22/2009 - 09:06 — jorge
The problem of loss of data (and how to recover)
In these times of information age everyone - individuals, businesses, governments, businesses and universities use different daily data storage media available on the market such as hard drives, usb ports, cd's, dvd's , flash cards, tape drives, iPods, cell phones, blackberries, PDAs, memory cards, floppy disk, etc..
And that certainly is a huge advantage against what he had to make to humanity after approximately 70% or 75% when the majority of the twentieth century, personal information, government, business and school was stored on paper.
However, in those times there was a problem and is now suffering the terrible risk of losing information.
At that time, losing meant that information was lost a folder, document, book, archive, and retrieve it is to have photocopies or microfiche as an opportunity to mitigate that risk.
Today, the incredible advances in storage capacity puts us all at risk of losing in an instant a great volume of information generated perhaps for years, and the value of it can range from a simple sentimental value, even accounting a large company or vital information whose loss can break a company, or a costly investigation that has been developing for years, just to name a few.
How does the Data Loss?
You may think that data loss occurs by natural causes, electrical accidents, errors, or even causes premeditated, but not the major cause of data loss in all areas is the lack of foresight.
If all, people, government, businesses, universities, siguiésemos rule support the slogan of our information, then the problem of data loss would be minimal.
However, as it is not as it should, then the problem is, sooner or later and with a frequency that should be surprising.
If in doubt, refer to the Google search term in Spanish "Data Recovery" or in English "Data Recovery" and will find that there is a huge number of companies engaged in data recovery.
Large companies have the requirement to comply with support services.
Several businesses today, in Mexico, USA and the world at large, facing mandates and federal administrative agencies to maintain complete records to support all their business transactions electronically. The regulations of the industries to impose confidentiality, portability industry and preservation of financial records requiring organizations to implement processes to support the goals of recovery and data backup.
In Mexico, companies like Calasis, Inc. can help companies meet these new standards.
Indeed HIPAA (Health Insurance Portability and Accountability Act) requires the ability to establish and maintain preventive measures physical, technical and administrative reasonable and appropriate steps to ensure the integrity, confidentiality and availability of information.
Areas of compliance with HIPAA are:
Prevention of unauthorized access
Unauthorized access to personal records is strictly forbidden, therefore you must be careful in how they support the records, they are transported off site and how they have access to them to prevent unauthorized access.
Customer data must be encrypted and securely transmitted to a directory that is located in a data center-class which must be insured to provide services for data protection.
Access to directories and the data center is strictly controlled through administrative procedures, preventive measures of physical and technical security measures to prevent unauthorized use or disclosure of customer data.
The logical access to data is strictly controlled, with a secure user interface, which provides the ability to set password policies and gives users rights to manage the backup of specific servers. More importantly, access through the Web does not allow a user to view the contents of the data.
Health providers must retain health records (electronic, written and oral) for a minimum of 6 years under the final HIPAA privacy.
The same applies to SOX (Sarbanes.Oxley Act) which specifically says that electronic records must be kept at least five years to ensure that auditors and other regulators can easily obtain the requested documents.
The Sarbanes-Oxley (SOX) of 2002 legislates how long and the way that companies keep their financial records. Created largely in response to the WorldCom and Enron scandals, SOX is the law designed to protect against accounting errors and other illegal financial activities. By imposing a more rigorous requirement on financial reports the storing of the records becomes vitally important because the route of the transactions must be secure.
Types of Data Loss
The cost of data loss
The cost of data loss is important. Companies must be proactive in protecting this important resource.
All users are familiar with the problem of data loss. Occasionally, incidents of data loss is relatively inconsequential, representing only a few minutes of loss of employment or the removal of unnecessary files. But often, the nature of the data loss is critical, and the cost of data loss is important.
Dependence on information and data as economic engines of the business continues to grow and the owners and managers are subject to new risks. One study reports that a U.S. company that is experiencing a lasting disruption in the use of information from a computer for more than 10 days will never fully recover financially and that 50 percent of companies suffering such a situation will be out business within the next 5 years.
Event of data loss can be related to hardware or software. Therefore, consideration of both is necessary to estimate the magnitude of data loss. Estimates suggest that the most common cause of data loss is hardware failure, which represents 40 percent of data loss in these incidents.
These include losses from damaged hard drives and power failure. Human error accounts for 30 percent of all episodes of data loss, including accidental deletion of data as well as accidental damage by the hardware, such as damage caused by falling lap tops.
Software corrupt, which may include damage caused by a diagnostic software, representing 13 percent of data loss in the event of data loss. Viruses, including boot sector and file infecting viruses, representing 6 percent of all episodes of data loss. Theft of hardware, especially prevalent with laptops, representing 9 percent of data loss events. Finally, destruction of hardware, which includes damage caused by floods, lightning and fire, representing 3 percent of all episodes of data loss.
A serious incident of data loss will result in one of two outcomes: either the data are recoverable with the help of a specialist company like that you can find in www.speedrecuperación.com.mx or www.datarecop.com. mx or data are lost and must be constantly recreated, usually at a high cost.
An estimate of the average cost of each data loss incident must take into account both possibilities. The ability to recover data depends on the cause of data loss. The loss or theft of a laptop whose details have not backed up will result in permanent data loss. In addition, a fire or flood damage can also make the chances of data recovery very remote.
The first cost of data recovery to be considered is related to the recruitment of a team of specialist support in the recovery effort. If there is a team of specialists working in support of the company, the number of hours required to recover the data and the cost of employing this individual must be taken into account. The time needed to recover data may vary widely. If there is a data backup and easy access, the time needed to recover data can be very short. At the other end of the spectrum, if the data on the hard disk is damaged, may be required several days to recover the data.
During the time that the attempt to recover data is underway, the company or person unable to use your PC, which reduces productivity, which in turn affects sales and profitability. This opportunity cost and lost productivity due to inactivity of the computer hit with losses and declining profits, as well as other damages in common and explicit costs. The loss of productivity represents missed opportunities for income generation.
The final cost to be taken into account in an episode of data loss is the value of data loss if the data can not be recovered. As noted above, this outcome occurs in approximately 17 percent of data loss events. The value of lost data varies depending on the facts and, more importantly, the amount of missing data. In some cases the data can be recreated in a short period of time, a result that would lead to a relatively low cost of data loss. In other cases, the value of lost data can take hundreds of man-hours over several weeks to recover or rebuild. Such prolonged effort could cost thousands of pesos or dollars to a company, even potentially, millions of dollars. Although it is difficult to accurately measure the intrinsic value of the data, the value of different types of data varies. Some sources suggest that the value of 100 megabytes of data is valued at approximately $ 1 million, which translates to $ 10,000 for each MB of lost data.
According to conservative estimates the growth rate of the data of 80 percent per year. Not only the amount of data and increasing reliance on business data is also increasing.
Implications of this research are clear. Business managers should invest in technologies that can reduce the chance of data loss. A saying that preceded the advent of the computer is appropriate here: an ounce of prevention is worth a pound of cure.
Source: Journal of Contemporary Business Practice, University Pepperdinie
Types of Data Loss Events
Intentional action of deleting a file or program.
Accidental deletion of a file or program
Lost CD or floppy
Inability to read unknown file format
Power failure, so data in nonvolatile memory is stored in permanent memory.
Hardware failure, such as an accident or injury to the head on a hard drive.
Software corrupt or freezing, which prevents data being saved.
Software errors or misuse, such as not confirming a file delete command.
Corruption of data, such as corruption of files or data corruption.
Natural disasters, earthquakes, floods, tornadoes, etc..
Theft, piracy, sabotage, etc.
A malicious act as a worm, virus, hacker or theft of physical media.
Studies have shown that a hardware failure and human error are the two most common causes of data loss, accounting for about three-quarters of all incidents. Although the probability is small, the only way to recover from data loss due to a natural disaster is to back up and store data to a backup and saving it in a location physically separate.
How do I avoid this?
Preventing data loss
The following article is taken from the site http://www.recuperacióndedatos.com.es and provides some basic tips.
Here are several tips to help you optimize your hard disk to enhance the chances of success in the recovery process data in the event of any incident that would cause a loss of important files, or the usual corruptions data that prevent access to them.
- It is recommended not to store files in the root directory of your hard disk.
Entries or headers of the files that are typically stored on a hard disk, are stored in the root directory. Therefore, these files are more likely to be removed when we did a quick format on our computer.
It is advisable to store our files in sectors outside the root directory of the hard disk to prevent data loss in case of damage to the header of any of the files, because from that time those files are useless.
- It is recommended to defragment your hard drive with some regularity.
When a hard disk is empty, data is beginning to store in consecutive sectors, called clusters. The problem comes when, after the required processes of reading and writing every day routine, the data begin to be stored in areas free from alternate disk, or in clusters that can be used at the time of writing data because these sectors (empty) "mixed" with occupied areas. Thus, hard disks become slower due to the continuous movement which carried out the head read / write hard disk for data stored in different clusters alternate. If all data were taken together, would make their heads without much lateral movements that directly affect a slower all processes contributing to the work of reading / writing takes place in a more reliable and fast.
Then it is advisable to defragment the disk or disks regularly, to ensure that data are too scattered along the magnetic storage medium, medium, and that seems a bit spartan in current times compared with the advances in size and speed that are suffering the storage media "is not mechanical."
The defragmentation process is achieved by optimizing the data retrieval in case of a sudden failure of our system. For example, if the FAT is overwritten by a quick formatted disk, or because of a virus attack, a check is necessary to analyze how the data were released by the hard drive, allowing later recovery if data is present.
There are programs dedicated, specially designed for defragmenting hard disks, which are often more effective and faster than the profits that come with operating systems like Windows. This use is recommended in order to perform defragmentation in the most effective and shortest time possible. The better to defrag the drive, the greater the time spent defragmenting. With the use of these programs focused on making this work, the duration of the process is reduced.
In short, a hard disk fragment (without messy data into separate clusters) increases the percentage of recovered files because the complete data are stored at the beginning of the first cluster of each file.
- It is recommended not to store important files on hard disks of low capacity.
The smaller the storage capacity of a hard drive size, the greater the possibility that the data are disorders of the entire disc surface, breaking ground for our wishes to keep well defragmented the hard drive, with all this entails.
If you have important data to store, try to devote a sizeable hard drive for that need, and leave the unit in the tail for the OS installation, minor works and they have their own data.
- We recommend using a free unit for purposes of data recovery.
If you install some software designed to recover data, do so in a "cleaner" than that which hosts the data to retrieve. Otherwise, the risk of data overwritten when you install the software, rendering impossible the recovery of data that were in clusters rewritten in the new facility.
If you follow these tips will prevent most problems in the future if you have any problems with their storage units, as the data recovery can be carried out more successfully if it takes the light from the beginning.
So much for the article http://www.recuperacióndedatos.com.es
Many professional salvors say that data no matter the brand of the hard disk is used, it will always be only a matter of time that you, your family, your company, or whoever (government, university, institute) suffer a loss of data blige to recover in one way or another.
This can extend not only to hard disks, but to any other unit of information storage such as USB, CD's DVDs, data tapes, flash cards, RAID servers, or otherwise.
And the loss of data can not only be due to mechanical failure of devices, accidents, floods, fires, earthquakes, landslides, premeditated actions, crimes, terrorism, industrial espionage, but also may result from the attacks from the action of virus software, Trojans or corrupted software, software updates, etc, etc,
However, you can always have the opportunity to recover if through carelessness or negligence is not necessary with the support of the information.
You can retrieve information, data, images, files, programs etc.. but the quality of that recovery will depend heavily on the cause and what you have done or failed to do when he realized that he was suffering such a loss.
Add to the county landfill and above the following
1. Back up your critical files frequently, which could bring serious problems in the viability of its business or activity or emotional stability (photos, emails, etc.).
2. Always have protected your computer with anti-virus software and firewalls and all that is necessary. Andalusia every respect. And I do not mean just the protection that should be on your personal computer or laptop from your home or in their families (children and wife or husband), but in your company or business. And more so if a large company or a large government entity or agency, that may even be legally obliged to have provided such protection and ensure the recovery of your data and protect customer information or cause.
3. Protect yourself from falls from current or voltage changes with non-brake units and avoid the maximum (at home) failures caused by electrical causes.
4. The best thing is that, as noted by the disappearance of information, do nothing in the sense of using recovery software or any other action to those enumerated in some websites.
It is advisable to immediately contact an expert in the field and he is responsible. In Mexico you can communicate www.speedrecuperacion.com.mx and if your language is English can do it in www.datarecop.com.mx and do exactly what the expert indicated.
5. Always save your file and save it or burn properly. Do not turn off the computer improperly, follow the proper shutdown procedure. It's incredible, but at some point, years ago I met the director of a large bank systems of government in Mexico (Bancomext, to be specific), which shut down the computer on your desktop just so off with the power button and despite having lots of programs and files open. "Nothing," he said. Anyway, it was nothing more than a programmer to come over.
6. If you are not an expert, do not open a hard drive or other storage medium.
7. Keep copies of your most current information as possible in places other than the building where your business or home business. Make agreements with other companies.
8. Do not use data recovery software and less than that offered by some websites.
9. If you live in Mexico City or your company is in it or in areas susceptible to earthquakes or other natural disaster, take steps to protect their data due to landslides, floods, fires, thefts, hot, cold, excessive etc..
The content of this page will be updated frequently. Keep in touch.