Monday 15 September 2014

Data Recovery Solutions – How Frequently Should You Back Up?

At Server Sentry, we’re often asked this question.

In practice, there is n’t any one answer.  It depends a lot upon the nature of your business operations and how frequently your data and systems are updated.
To understand why, it’s necessary to think a little bit about the fundamentals of what are sometimes called data recovery solutions.


Let’s assume that your system has had some sort of problem resulting in a catastrophic loss of your data.  The basic principle of data recovery solutions means that you may need to ask yourself just how much of your work and other information you could afford to lose or how much time you could afford to spend in recreating it.

Take, for example, a situation where your catastrophic problem arose at 11:30AM.  If you are unable to resolve the problem, you may need to restore your data files as they were at the last point the backup was taken before you had your disaster.

If you only take a backup of everything at the end of a working day, that means that any work done between (e.g.) 6.30 PM that day previously and when your problem happened at 11.30 AM the following morning, could potentially be irretrievably lost.

You could only restore your system to as it had existed the night before at 6.30pm.

Would that be a problem for you? It’s impossible to say in isolation. At the very least you may have lost several hours’ work. In worst-case scenarios, it might not only be lost but also impossible to replicate – something that might be a disaster.

If the thought of losing several hours’ work is too terrible to contemplate, you might need to take much more frequent backups as part of your strategic data recovery solutions. In some cases, companies actually run what’s called ‘hot standby’ whereby their data is replicated off-site in real-time meaning that in the event of a problem, they could instantly cut over to a virtually mirrored environment where all their data is fully up to date.

What you need by way of data recovery solutions will be driven by many different factors – and we can help you discover what they are.


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