Chapter 8 Quality attributes and sizing of the dXp ͻ^LJƐƚĞŵƐƚƵĚLJ ͻƵƐŝŶĞƐƐŝŵƉĂĐƚĂŶĂůLJƐŝƐ ͻDĞƚƌŝĐƐĚĞĨŝŶŝƚŝŽŶ ZWůĂŶŶŝŶŐ ͻZWƌŽĐĞƐƐĚĞĨŝŶŝƚŝŽŶ ͻZĐŽŵŵƵŶŝĐĂƚŝŽŶƉůĂŶŶŝŶŐ ͻZƐŝƚĞƐĞƚƵƉ ͻZƉƌŽĐĞƐƐŝŵƉůĞŵĞŶƚĂƚŝŽŶ Z ͻZƚĞƐƚŝŶŐ /ŵƉůĞŵĞŶƚĂƚŝŽŶ ͻZƐŝƚĞŵŽŶŝƚŽƌŝŶŐ ͻDĞƚƌŝĐƐŵŽŶŝƚŽƌŝŶŐ ZDĂŝŶƚĞŶĂŶĐĞ ͻ&ŝŶĞͲƚƵŶŝŶŐZƉƌŽĐĞƐƐ Figure 8-2. Sample DR strategy A DR strategy includes three main steps, as depicted in Figure 8-2: DR planning, DR implementation, and DR maintenance. DR Planning Disaster recovery planning involves identifying all DR data and DR processes to implement a robust DR strategy. We start by studying the as-is system through stakeholder interviews and questionnaires to understand the code, content, and data that needs to be synchronized on a frequent basis. During system study, we identify the system dependencies, understand system and network architecture, and study 229