1sockchuck writes: Data center providers are offering space with less power infrastructure than traditional mission-critical facilities, citing demand from customers looking to forego extra UPS and generators in return for more affordable pricing. The demand for "variable resiliency" space reflects a growing emphasis on controlling data center costs, along with a focus on application-level requirements like HPC and bitcoin mining. Data center experts differed on whether this trend toward flexible design was a niche, or a long-term trend. "In the next 12 months,data center operators will be challenged to deliver power to support both an HPC environment as well as traditional storage all under one roof," said Tate Cantrell, CTO at Iceland's Verne Global. "HPC will continue the trend to low resiliency options." But some requirements don't change. "Even when they say they're OK with lower reliability, they still want uptime," noted one executive.