Читать книгу Maintaining Mission Critical Systems in a 24/7 Environment - Peter M. Curtis - Страница 16
1.2.1 Levels of Risk
ОглавлениеRisk can be described as the worst possible scenario that might occur while performing a task within the facility. Risk assesses how much we know or predict about unforeseen circumstances. As we review risk, management is essential to the facility/IT team as having the proper change management process in place for planned events, and event response procedures in place can ultimately reduce downtime. Reducing the frequency and understanding impact is the key to proper Critical Environment Management. Table 1.1 shows the three typical levels of impact, high, medium, and low, as a result of an event occurrence.
Table 1.1 Levels of Risk Impact to Facilities
| Risk Impact | Effects of System Failure |
|---|---|
| High | It will cause an immediate interruption to the clients’ critical operations such as:Activity requiring a planned major utility service outage, or temporary elimination in system redundancy of the critical environment.Activity that would disrupt critical production operations.Activity that would likely result in an unplanned outage or disruption of operations, if unsuccessful. |
| Medium | There is time to recover without impacting the clients' critical operations including any:Activity requiring a planned service outage that does not affect systems, but may impact non‐critical operations.Activity that involves a significant reduction in system redundancy.Activity that is not likely to result in an unplanned outage to the critical environment or disruption of operations, if unsuccessful. |
| Low | It will not interrupt operations and will have minimum potential of affecting the clients' critical operations including:Activity involving systems directly supporting operations but the execution of which will be transparent to operations.Activity that cannot result in an unplanned outage of the critical environment or impact operations, if unsuccessful. |
| None | Activity not associated with the critical environment. |
