CIOL: What are the main challenges for business continuity? SA: The important challenges that organizations encounter while drawing up a BC plans are: Lowest possible recovery time objective (RTO),
The two most critical parameters are RTO and RPO. Where RTO is NIL, the redundancy should be a fully-clustered architecture, where fail over is immediate. Where RTO is set at few hours, one does not need clustering, but will need to replicate data to the DR site periodically. Where RPO is access to the latest version of data, just before the disaster, then synchronous replication is recommended; where RPO is few hours or even days, asynchronous replication will do.
From the perspective of type of DR, organizations need to decide among the following options:
In addition, the examples could be bill processing/printing for a utility company, vehicle dispatch and scheduling system for a logistics services company, etc. The BCP must take care - at a minimum -- of continuous operation of the critical processes.
As organization's business grows and evolves, the need for BCP will also change in terms of SLA expectations from users, cost of downtime, RTO/RPO, etc. It will be useful to periodically update the BCP of an organization.
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