It is known to all that backing
up mission critical data is the key to success of an organisation. However,
many companies still decide to back up data locally in order to save money. There
is nothing wrong with this decision, if you look at it from a financial point
of view. A few boxes of dual-layer DVDs or even an external hard drive or two
will cost much less than opting for the services of a rather expensive backup
service provider. However, from the point of view of technicality and security,
everything is wrong with this strategy.
External backup media, such as
external hard disks, or optical discs, can easily get corrupted on prolonged
storage. It does not matter if you keep DVDs locked up in a safe. Prolonged
exposure to moist air is enough to harm the layer of dye inside the optical
discs, leading to data corruption. External hard disks are not completely safe,
either. No matter how safely you store these, one single accidental impact or
static electric discharge is enough to make the data irretrievable.
The best way to avoid such a disaster
is to opt for an online backup service. Online backup can be of two types, one
that you can set up locally, and another, where your files are stored online at
some secured server hosted and maintained by the service provider.
Local online backup servers are
powerful, high end PCs with terabyte after terabyte of storage space. These PCs
are not used for any other purpose except data storage. Some backup software is
installed in all the PCs, which keeps backing up files as the users work. The
backup is absolutely transparent to the users; they do not have to do anything
about it.
The only drawback is that these
servers are often very expensive to set up. You will need to enlist the help of
a sufficiently qualified system administrator to make sure that the server is
maintained properly. Also, in case of a natural calamity or an accident at your
workplace, the server will be affected along with all the other systems. If you
wish to avoid this inconvenience and expense, it is best to opt for a third
party backup service provider.
Backup service providers usually
have secure servers for keeping backups of user data. The service may be
provided either free of cost, or for an annual fee. The provider takes care of
everything – be it providing security for the stored data, or taking backups
periodically. There are several good providers who offer backup services at
reasonable rates. If you are not confident about maintaining backups of your
data internally, it is best to employ a specialist company.