Disaster Recovery Planning (DRP) begins with a discussion of the major systems staff. It is important to ensure their support for disaster recovery initiative. Explain how disaster recovery is and why it is necessary for business continuity, lower costs, generate revenue and increase productivity. Disaster scenarios, such as fire, floods, earthquakes, cold and sabotage workers should also be discussed. Alternative supplier should be discussed as a potential problem with business continuity.
Risk Assessment
Risk assessment is a "what-if analysis", in which the level of risk associated with the current state of the network. The following are some things to consider before a disaster recovery strategy.
• Average cost per minute that your network is not available
• The cost for the replacement of servers, applications, devices and circuits
• What happens if a disaster recovery plan and how far is it
• Have you identified alternative suppliers primary suppliers have their own disaster recovery problems
Disaster Recovery Strategy
The disaster recovery strategy describes the operating changes, design changes and failover strategies for business continuity. An action plan describes that all these strategies and a detailed escalation procedure, the network is unavailable. The document must be employees, responsibilities, dates, event sequence, suppliers and processes.
The following are recommended operational changes:
1. Network Documentation
Automate your network documentation. It is difficult to conceive of a network without current documentation of the network, before he was unavailable. Running imaps (Evaluation Network), all the information you need, but the application and device configurations are. Find a tool that automatically!
Document these articles:
• Current Topology
• Infrastructure
• Security Policies
• Management Strategy
• Application configurations, versions and patches
• Device configurations, IOS and firmware versions
2. Regular backups rotated off-site test of the integrity of data
The following list describes the recommended design changes:
Review and revision of the design, infrastructure, configuration, security and network management for better resilience and availability. It is my contention that the imaps is an effective strategy for determining what changes should be made to your network. The argument is that the evaluation of all the groups have no impact on network availability and stability. The assessment is the most essential information, but safety should be the problems with society, your network attacks. If your network is attacked, it is not available!
Management strategy and valuations are important because the lack of effective management and policy applications, a weak situation. For example, without changing the policy, you have people change application and device configurations (assuming that the safety permit) without prior approval and at any time of day. The changes in the configuration does not work as expected, and it is 10 hours, while the employees begin their day. Guess what the day only. Pro-Active Fault and Performance monitoring strategies indicate when a device or server is not operational or near capacity. This situation has some impact on the network. The performance will describe how the network performance and capacity, and some offices are affected. The infrastructure assessment will focus on topics such as media misalignments, switch port capacity problems IOS, routers, memory deficits, application software versions and protocols. As an assessment of availability and the emphasis is on the rack, temperature control, increased performance and availability levels.
Select the failover strategies
1. On-line data synchronization between the production of a remote data center and data center facility. The cutover of the convergence time, transparent to all staff and current data were available. This assumes that the cost of an external supply of routers, switches and matching-server applications to synchronize and offices. Cisco distributed director technology can be used to configure data centers for simultaneous operation if required.
2. Configure the distributed redirect Director meetings of the Deputy Data Center, if a certain percentage of the TCP sessions were on the primary data center. It's still a good idea, standby sites as described below, since the two-line data center was not available.
3. Configure a 48-hour standby site for the company that a remote, yet not all the equipment needed to create a certain quality of service within 48 hours. This is a temporary strategy for the network service for a short time before the problems are solved or cutover to a 10-day website. This can be done by their own employees or outside vendors DRP.
4. Configure a 10-day standby site for the company that a remote, yet not all the equipment necessary for the restoration of all specified services within 10 days. This would be in a situation where the recovery of data center services would require months. This can be done by their own employees or outside vendors DRP.
Contingency Testing
Test your disaster recovery (business continuity) strategy through the action plan document of the strategy phase. There should be a special meeting with employees and suppliers to complete tasks, appointments, test event sequence and processes. The company's strategy and action plan must be changed if problems are caused by tests or business requirements change. Plan for periodic inspection of the Disaster Recovery Plan 3-4 times per year.
Recommendations
The results of the contingency test used to make solid recommendations to improve disaster recovery strategy and test process. The complexity of the organization, how difficult it is to create a workable disaster recovery plan. The recommendations are that your DRP and work than necessary. The on-demand circuit is due to the remote DR facility homed router converges to the businesses and workers can make use of the mainframe applications. The mainframe-DR must be synchronized with the company for the mainframe transactions in the period before the service is restored.
Network Planning and Design Guide is available on amazon.com
0 comments:
Post a Comment