Data recovery: list of recommendations and prohibitions for IT teams
What to keep in mind when preparing for unpredictable random events, such as flood or data center fire? How to protect yourself against data loss? Below is a list of recommendations and prohibitions for IT teams, which should always be remembered in order to minimize the effects of failures, restore data in the shortest possible time and maintain continuity of services.
YOU WILL LEARN FROM THIS ARTICLE:
- HOW TO TAKE CARE OF SECURITY AND HOW TO ENSURE DATA RECOVERY?
- WHAT SHOULD BE TAKEN INTO ACCOUNT WHEN PREPARING DISASTER RECOVERY PLANS (DR)?
- WHAT ROLE DO DATA RECOVERY TOOLS AND DATA CENTER MANAGERS PLAY IN THE PLANS?
- HOW TO PREPARE FOR DIFFERENT DISASTER SCENARIOS AND HOW TO PLAN THE RECOVERY OF DATA FROM THE DRIVE?
- HOW DOES VIRTUALIZATION HELP PREVENT THE CONSEQUENCES OF FAILURES?
How important is disaster protection and an effective rescue plan? We do not have statistics on Poland, but on a global scale the task of estimating the costs of downtime and data loss was undertaken by a research company Gartner1 . Analysts, based on surveys, estimated the average cost of downtime at over $300,000 per hour. These are, of course, averaged data, and actual losses in a specific case depend on the profile of the company and the revenues it generates.
Prepare a Disaster Recovery Plan
In developing a disaster plan, particular emphasis should be placed on anticipating and eliminating surprises. What we are talking about here is putting it into practice. This means that it is necessary to regularly test the correctness of data recovery from backups. The last thing you would like to find out about during a disaster are the gaps in the plan that you did not take into account, as a result of which some of the data is not recoverable.
Eliminate single points of failure
Each infrastructure element should be replaced in case of failure. Design the architecture of your IT system in such a way that one defective element (hardware or software) does not cause the whole system to fail. Resource virtualization, redundancy, load balancing and clustering are solutions to avoid a single point of failure.
Not only a major disaster, such as a server room fire, can lead to data loss or significant service interruptions. Often serious problems can be made up for even a short power outage resulting in a failure and requiring recovery of data from the drive. Solutions involving cloud computing or co-location with data recovery tools eliminate most of the negative effects and protect against the worst-case scenario.
Virtualization and cloud solutions have become the primary mechanism for ensuring constant availability of data. With servers, applications and other IT resources securely stored in a backup, independent data center, you gain peace of mind that your data is always archived and always available.
Take advantage of proactive monitoring
An optimized and regularly updated disaster recovery plan is a good way to protect against data loss, but proactive monitoring of servers will help avoid disaster before it happens. Services that proactively monitor your servers will ensure that your data is protected permanently.
The 3-2-1 backup principle says to make three different copies of important data stored on two different media, one of which is located outside the processing site (primary data centre).
It is often believed that an external copy with disaster recovery tools should be at least several kilometres from the primary data centre. However, in the case of natural disasters in large areas, such as hurricanes or floods, these several kilometres may not suffice.
Distance is practically irrelevant if we are talking about a backup stored in the cloud, which ensures proper performance and security. Security can also be provided by a dedicated disaster recovery service – Disaster Recovery as a Service (DRaaS) from an external service provider.
Take care of the safety of people in the first place
An emergency plan, including a natural disaster, should be designed so that IT staff can focus on personal safety at the time of a disaster (fire, flood). In a critical moment, they should not perform such activities as, for example, saving additional backups, because no data is worth the risk of loss of health and life of a human being.
How do they protect themselves in the world?
In a survey conducted in 2017, Disaster Recovery Journal2 notes that compared to 2014, more and more organizations wanting to maintain business continuity are opting for solutions hosted for disaster recovery.
Of those surveyed, 22.5% now use the public cloud, an increase of 9.5 percentage points, while today 9% of respondents use DRaaS, an increase of 55%. On the other hand, only 35 percent of the surveyed companies still use tape technologies as a data recovery tool, which represents a decrease of about 10 percentage points.
42.5% of respondents use backup servers and devices in their main data center. Moreover, only 16.5% of organizations use the services of MSP (Managed Service Providers). The increase in the share of SME is insignificant as compared to 15
Let’s remind you of the most important recommendations related to disaster recovery:
- A good Disaster Recovery Plan should effectively ensure data recovery in a short period of time, allowing you to quickly restart the service.
- The 3-2-1 rule says to make 3 different copies of important data stored on 2 different media, 1 of which is located outside the primary data center. This will ensure a high probability of data recovery.
- Virtualization and cloud solutions increase the efficiency of data recovery tools and data availability.
- A well-designed disaster recovery plan not only ensures the security of IT services, but also properly protects employees.
WHAT DISTINGUISHES BACK UP?
You use a backup environment located in a professional data center where your data is extremely secure. You get an online portal through which you manage the service in real time. We can also do it for you, on your behalf.