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Measuring PUE with Shared Resources, Part 1 of 2
Measuring PUE with Shared Resources Last week I wrote a little about measuring the total power in a data center, when all facility infrastructure are dedicated to supporting the data center. Another common situation is a data center in a mixed environment, such as a corporate campus or an office tower, at which the facility resources are shared. The most common shared resource is the chilled-water system, often referred to as the “mechanical yard.” As difficult as it sometimes can be to set up continuous power monitoring for a stand-alone data center, it is considerably trickier when the mechanical yard is shared. Again, simple in principle, but often surprisingly painful […]
Measuring PUE with Shared Resources, Part 2 of 2
PUE in an Imperfect World Last week I started discussing the instrumentation and measurement of PUE when the data center shares resources with other facilities. The most common shared resource is chilled water, such as from a common campus or building mechanical yard. We looked at the simple way to allocate a portion of the power consumed by the mechanical equipment to the overall power consumed by the data center. The approach there assumed perfect sub-metering of both the power and chilled water, for both the data center and the mechanical yard. Lovely situation if you have it or can afford to quickly achieve it, but not terribly common out […]
The Power of DCIM is Power State Normalization – Part 1
Power Management is the root of DCIM and the foundation of managing a data center infrastructure. Other management tasks are irrelevant if the primary and backup power is offline. Power management can be a complex process of monitoring and managing not just a set of devices but an array of states and paths that collectively define the state of power in your data center. This data ultimately provides the information needed to ensure resilience against power outages that affect the core of your operations and help you lower your PUE. Dependability is the cornerstone of DCIM – but beyond that, what defines an exemplary power management approach for a data […]
Power Normalization – Part 2
A powerful DCIM solution uses normalization to present a unified view of the power state of your assets, removing the need to process or interpret state and enabling you to focus on your job – managing your power distribution.
Fill the DCIM Power Gaps
Data Gaps – The hidden pitfall of Data Center monitoring. When your DCIM solution is deployed, and when every device that can be monitored IS monitored – there is a perception that monitoring has been maximized and that everything that can be done has been done – to avoid unexpected failures and downtime. That assumption is wrong. Despite great strides in the industry, not all gear supports monitoring. Using legacy gear is a significant part of the issue, but also a choice. Rack PDUs are a good example. The cost difference between an in-rack PDU with monitoring and a glorified power strip can be significant. This is particularly true if […]
