The data recovery planning after a failure has become a battle cry for many organizations as a result of significant natural disasters and accidents occurred because of the human factor. In addition, there are as well more stringent rules and regulations prescribing to protect and preserve data as the most invaluable asset of the company.
This article from a practical point of view will present a comprehensive description of the components for a data recovery plan. For those who have not previously worked on the project planning, this material will help dispel the myths and focus on what needs to be done to develop effective recovery options.
The methodologies for data recovery planning are often considered to be “brand” of various consulting companies and represent a kind of complex and tortuous processes known only to a few privileged practices. However, in fact, the methodology of data recovery planning is a simple application of common sense, which is followed by a pragmatic project plan, similar to the methodology of the development life cycle of systems.
First, the initial draft recovery plan includes 10 tasks that can be divided into three subsets or stages.
The first planning stage: Analysis
This stage includes the following tasks:
- the beginning of the project;
- data collection
- preparation of a preliminary risk analysis.
The second planning stage: Setting targets
Most of the tasks of this phase include the development of strategies and logistics, infrastructure failure recovery, and data necessary for mission-critical applications. Each task requires a consideration of numerous alternatives, helping to build the most effective strategy in the framework of budget constraints. If the strategy involves significant costs, probably you will have to justify the cost to the senior management.
There are many characteristics of software products designed to reduce the time to back up, they include support for incremental backup, “hot” backup, inode snapshots, and backup tool disk drive simulating a tape. However, there are other technologies designed to reduce the cost of mirroring data from disk to disk. As an example, duplication of disk-to-disk, factoring from Avamar: multi-purpose caching and network-based hardware and software.
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Third planning stage: Phase project planning
This stage includes:
- Create commands to restore and their training;
- Testing the plan;
- The implementation of the change management process.
Currently, the lion’s share of work on the definition of requirements and strategies for data recovery is complete. There are a lot of ways to restore the data without any restrictions. And, more importantly, the company’s essential data can be duplicated and verified.