Depending on the company's budget and data center physical infrastructure, mission-critical applications require N+1 redundancy at a minimum. For example, if a server handles transactional data, it should have multiple, redundant power supplies to keep the server running in the event of a power outage. When deploying mission-critical software, information technology (IT) administrators must determine exactly what support is necessary to ensure an application's ability to function under sub-optimal circumstances. For example, an automatic vehicle locator ( AVL) app might be mission-critical for an ambulance company but if a plumbing business uses the same software, it may be characterized as being important, but not essential. Examples of mission-critical applications vary from industry to industry. In addition to lost productivity, a mission-critical app's failure to function may also damage the business' reputation. If a mission-critical application experiences even brief downtime, the negative consequences are likely to be financial. Gillis, Technical Writer and EditorĪ mission-critical application is a software program or suite of related programs that must function continuously in order for a business or segment of a business to be successful.
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