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How do You Regulate Power on Your Integrity NonStop BladeSystem?

In an earlier blog (Power Monitoring and Regulation for NonStop: Going Green BIG TIME), I discussed many areas related to power management on Integrity NonStop systems, including power monitoring, thermal monitoring, data center power control, CPU utilization monitoring, and Power Regulator. In this blog, I will discuss how to use Power Regulator on Integrity NonStop BladeSystems.


First, what is Power Regulator? Power Regulator is a mechanism so that the blades in a NonStop BladeSystem can be run in different power efficiency modes based on customer-specific workloads, and thus, reduce data center power and cooling costs.


Power Regulator on NonStop BladeSystems


The Power Regulator feature is only available for Integrity NonStop BladeSystems NB54000c and NB54000c-cg running RVU J06.14 or later, and OSM SPR T0682ACZ or later. There are three supported Power Regulator settings:

  • HP Static High Performance Mode: In this mode, all CPUs run at the maximum performance/power consumption that is supported by your NonStop configuration. This mode ensures maximum performance, but does not provide any power savings. This is the default mode for all systems, including all systems that had already been shipped when Power Regulator was introduced.
  • HP Dynamic Power Savings Mode: In this mode, all IPUs run at maximum power/performance until an IPU idles. Once the IPU idles (and as long as it does not need to off-load work from other IPUs), it moves to the Itanium power saving state until a task needs to run on it, at which time the IPU executes instructions at maximum power/performance again.
  • HP Static Low Power Mode: In this mode, the CPU is set to a lower power state. This state saves
    power by having the CPU operate at a lower frequency, with resulting lower performance capacity. The performance impact is workload-dependent.


The first time you enable Power Regulator for a CPU, its default Power Regulator setting changes from HP Static High Performance mode to HP Dynamic Power Savings mode. You need to then issue a command in HP Insight Control Power Management (delivered on HP Insight Control for NonStop) to alter the Power Regulator setting, if desired. iLO stores the new Power regulator setting in iLO flash memory, and that new Power Regulator setting becomes the default.


OSM support of Power Regulator

The tool to enable/disable blade Power Regulator is OSM Service Connection. It provides the action Enable/Disable Blade Power Regulator Management on the System object. In addition, the following two attributes under the System Object relate to Power Regulator.

  • Power Regulator Management Supported: It has the value True on a NonStop BladeSystem NB54000c or NB54000c-cg running an RVU supporting power management. Otherwise, this attribute is not displayed.
  • Power Regulator Management Status: It is only reported on NonStop BladeSystems if Power Regulator Management Supported is displayed (and has a value True). It can have one of the following values:
    • Disabled, when OSM action Enable/Disable Blade Power Regulator Management has attempted to disable power management on all blades or if the RVU does not support Power Regulator.
    • Enabled, when OSM action Enable/Disable Blade Power Regulator Management has successfully enabled Power Regulator on all blades.


How to enable Power Regulator

  • If the desired Power Regulator setting is HP Static High Performance Mode (which is the default), you have to do nothing.
  • If the desired Power Regulator setting is HP Dynamic Power Savings Mode or HP Static Low Power Mode, use the OSM Service Connection action Enable/Disable Blade Power Regulator Management to enable Power Regulator.
    • If the desired Power Regulator setting is HP Dynamic Power Savings Mode, you are done at this point.
    • If the desired Power Regulator setting is HP Static Low Power Mode, immediately after enabling Power Regulator, use HP Insight Control Power Management to alter the Power Regulator setting for all blades in this NonStop BladeSystem.


If Power Regulator is enabled, ensure that all blades in the NonStop BladeSystem are set to the same Power Regulator setting. OSM creates a non-dial-out alarm if it detects that all blades in the system are not set to the same Power Regulator setting.


Happy regulating power on NonStop BladeSystems….

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About the Author
Vinay Gupta is an HP Distinguished Technologist and the NonStop Manageability Architect. He joined Tandem in 1994 after graduating from Indi...
About the Author(s)
  • I work as a Master Architect in HP Servers R & D group. I work with teams spread across the lab and outside to build solutions which are highly available on HP-UX, OpenVMS and Mission Critical Linux platforms. In particular I contribute to develop HP Serviceguard clusters, HP-UX Security and Middleware products. I have been with HP for last 17 years and have exposure to HA/DR field from both R & D and customer perspectives.
  • Kirk Bresniker is the Vice President/Chief Technologist for HP Business Critical Systems where he has technical responsibility for all things Mission Critical, including HP-UX, NonStop and scalable x86 platforms. He joined HP in 1989 after graduating from Santa Clara University and has been an HP Fellow since 2008.
  • I’m the worldwide marketing manager for HP NonStop. I’ll be blogging and tweeting out news as it relates to NonStop solutions – you can find me here and on twitter at @CarolynatHP
  • Cynthia is part of the HP ExpertOne team. ExpertOne offers professional IT training and certifications from infrastructure refresh to areas that span across the datacenter like Cloud and Converged Infrastructure.
  • Hi, I work on the HP Servers team as HP-UX worldwide product marketing manager. I´m interested in how customers use our technology and will be blogging about their stories and on how our products evolve to help their businesses be always on.
  • I have worked with NonStop systems since 1982. I am a Master Technologist for HP and am part of the IT SWAT organization, the Cloud SWAT and work with HP Labs. I report into the Enterprise Solutions and Architecture organization.
  • Joe Androlowicz is a Technical Communications and Marketing manager in HP’s NonStop Product Division. Joe is a 25 year journeyman in information systems design, instructional technologies and multimedia development. He left Apple Computer for Tandem Computers to help launch G03 and hasn’t looked back yet. He previously managed the program management team for the NonStop Education and Training Center and drove the development and growth of the NonStop Certification programs.
  • Hello! I am a social media manager for servers, so my posts will be geared towards HP server-related news & info.
  • HP Servers, Converged Infrastructure, Converged Systems and ExpertOne
  • Luke Oda is a member of the HP's BCS Marketing team. With a primary focus on marketing programs that support HP's BCS portfolio. His interests include all things mission-critical and the continuing innovation that HP demonstrates across the globe.
  • I am the Superdome 2 Product Manager. My interest is to learn how mission critical platform helps customers and would also like to share my thoughts on how Superdome has been helping customers and will continue to do so.
  • I work in the HP Servers marketing group, managing a marketing team responsible for marketing solutions for enterprise customers who run mission-critical workloads and depend on HP to keep their business continuously running.
  • Mohan Parthasarathy is a Technical Architect in the HP-UX lab. His primary focus currently is in the core kernel, platform enablement and virtualization areas of HP-UX. Mohan has worked on various modules of HP-UX, including networking protocol stacks, drivers, core kernel and virtualization
  • I’m the Worldwide Product Marketing Manager for HP Serviceguard Solutions for Linux in BCS. I’ll be blogging about the latest news and enhancements as it relates to this product.
  • Greetings! I am on the HP Enterprise Group marketing team. Topics I am interested in include Converged Infrastructure, Converged Systems and Management, and HP BladeSystem.
  • As a Managing Consultant for HP’s Enterprise Solution & Architecture group, I collaborate with client business and IT senior management to understand, prioritize and architect advanced use of data and information, drawing insights required to make informed business decisions. My current focus leverages event-driven business intelligence design techniques and technologies to identify patterns, anticipate outcomes and proactively optimize business response creating a differentiated position in the marketplace for the client.
  • Wendy Bartlett is a Distinguished Technologist in HP’s NonStop Enterprise Division, and focuses on dependability – security and availability - for the NonStop server line. She joined Tandem in 1978. Her other main area of interest is system architecture evolution. She has an M.S. degree in computer science from Stanford University.
  • I am part of the integrated marketing team focused on HP Moonshot System and HP Scale-up x86 and Mission-critical solutions.

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