Losing data on a PC always causes an upset because the information stored there is often important to us. After all, w
hy else would you want to keep it stored there in the first place? Data is often stored on individual hard drives, on RAIDs and now days it is stored in something called a data cloud.
Hard drives and RAID’s are physical devices that store information on platters or discs that are combined on top of one another, where as a cloud is a virtual drive that basically exists in cyberspace. A cloud, says Intratec, is an effective way to store all of your data because there is no way for you to lose it, even if you delete the copies on your local computer, you can still go back to the cloud to retrieve the data.
Even though cloud storage is a new technology and an effective measure against data loss, it is still expensive to implement on your own or for your company. The other alternative is to try and access the service via the internet and through big companies like Google, but you have to be careful with what you put in there because the people that are hosting your data will always have access to it.
Why Data Loss Occurs So Often
A regular hard drive on the other hand is limited to its physical operation as well as the operations that are performed on it by the user. In other words, the data that is stored on the drive can be lost whenever the drive get corrupted or it simply stops working, and it the data itself can be lost by the user, either by deleting the data or accidently loading a virus on to the machine.
The web is full of viruses that can get onto your computer from just about anywhere. The moment they have been copied onto your hard drive somewhere, they begin their dirty work of corrupting your files, changing and even deleting your data. The same thing happens to a RAID when it gets infected with a virus, with the only difference is that there is usually a lot more data to lose.
Possible Solutions That Can Help Prevent Unwanted Data
A RAID basically functions like a group of individual hard drives working together. Sometimes it only consists of a single drive and sometimes many, and it also offers a fair amount of data security because the drives can be mirrored and exact duplicates of the data you require can be stored on another part of the RAID. That way you can prevent data loss by having duplicate information stored in the same place.
If you are an individual user and your computer only has a single hard drive, then things get a little more difficult. The only way to prevent any data loss on your computer is to make a back-up of all your data and try to store off the hard drive somewhere. That way you can revert back to it if something does happen to your computer. Unfortunately, if you have already lost your data, regardless of whether you are using a single drive or a RAID, the process for data recovery gets a little tough.
Recovering the Data You Have Already Lost
In most cases the data deleted by a user or lost from a virus is usually still on the drive until it gets written over by other data. The process of recovery in that instance is very much the same as taking the deleted files out of your recycle bin, all that needs to happen is the data needs to be extracted, and the minor change that is made to the bits and bytes of data is restored so that it is readable again.
When your drives physically crash the recovery process is a lot more complicated. Thankfully the process of recovering your lost data is still a possibility because the drives can be taken apart and rebuilt in a clean room, where they individual platters are read and the data extracted and stored in a readable place. The whole process can be quite costly, and only worth your while if the data is critical and you cannot afford to lose it.
So make sure you keep your drives clean and virus free, and always remember that even though the data is lost, it can always be recovered in one way or another.