Uptime is provided in specified blocks and associated with support tiers. Downtime is mandatory for SLA compliance, whether or not maintenance is performed during the outage. Customer does NOT specify desired uptime, they select an SLA for their business function which comes with a specific amount of uptime.
May require additional infrastructure. May require additional system resources. May require additional personnel resources. May require additional vendor support availability. Cost increases exponentially with uptime. Uptime is valuable and costly. It is not given away just because there is no pending maintenance to perform.
Slide ID:MXSLA-17