Intelligent Rack PDUs for Server Racks, Computer Rooms & Data Centers
A recent paper estimates "in typical deployments, server utilization is below 30%, but idle servers still consume 60% of their peak power draw" (Meisner, Gold, & Wenisch, 2009). The industry's push for efficiency has certain end users and industry professionals looking for a precise measurement of IT load-a key ingredient in Power Usage Effectiveness (PUE).
This level of detail requires measurement at each IT device-a process facilitated through outlet-level power monitoring.
What is Outlet-Level Power Monitoring?
Outlet level power monitoring, through rack-based PDUs, provides unprecedented visibility into power consumption. Instead of aggregate current draw across an entire PDU, for instance, users can drill-down to individual outlets and the specific power draw of the devices connected to them.
There are two types of outlet level power monitoring:
- Remote Outlet Monitoring measures power consumption at individual outlets.
- Switched Outlet Monitoring measures power consumption at individual outlets and allows for remote reboot or power cycling of connected servers.
The Benefits of Outlet Level monitoring
- Granularity: Typically, IT loads are measured via a UPS or a floormount PDU. Due to inefficiencies inherent in power distribution, measuring power consumption at the UPS or main Power Distribution Unit can artificially increase IT power draw measurements. With intelligent outlet-level monitoring PDUs, users can achieve a quick, accurate picture of the real power consumption of individual IT components.
- Efficiency Metrics: Combined with outlet-monitoring PDUs, Power Management applications can aggregate power metrics across all PDUs and outlets. Total IT power consumption and efficiency metrics can be quickly viewed in a single power monitoring dashboard.
- Electricity Chargebacks: Intelligent outlet monitoring PDUs can streamline the electricity chargeback process by providing accurate power consumption metrics based on actual IT equipment usage. Individual departments (HR or Finance for example), or colocated / shared rackspace users can be assigned individual outlets without having to have multiple standard monitoring PDUs. Through outlet level monitoring, data center managers can accurately assign power consumption to specific departments and provide itemized electrical usage bills based on actual consumption.
- Equipment Consolidation/Retirement: If a servers power consumption does not change, the equipment may be severely underutilized. Static power consumption indicates an ideal candidate for consolidation, virtualization, or retirement. Intelligent outlet-level monitoring PDUs take some of the guess work out of server consolidation decisions.
Software Packages
The manufacturer's power management software can automatically archive and export power readings into reports. The ability to graph, log and trend this information provides users with actionable data to improve efficiency.
Outlet monitoring Rack PDU - 120V input
| Intelligent Rack PDU (Input Plug Type) | Amps | Nominal Power | Outputs | Form Factor | PDU Image | View Online Pricing  Online pricing is provided by |
| 120 Volt Input - 15 Amp (Derated to 12A) | ||||||
| Raritan DPXR8-15 (5-15P) | 15A | 1.4kW | (8) 5-15R | 1U |  |  |
| 120 Volt Input - 20 Amp (Derated to 16A) | ||||||
| Raritan DPXR20-20 (5-20P) | 20A | 1.9kW | (20) 5-20P | 2U |  | |
| Raritan DPXR20-20L (L5-20P) | 20A | 1.9kW | (20) 5-15R | 2U |  | |
| Raritan DPXS12-20 (5-20P) | 20A | 1.9kW | (12) 5-15R | 0U |  | |
| Raritan DPXS12-20L (L5-20P) | 20A | 1.9kW | (12) 5-15R | 0U |  | |
| Raritan DPXS20-20 (5-20P) | 20A | 1.9kW | (20) 5-15R | 0U |  | |
| Raritan DPXS20-20L (L5-20P) | 20A | 1.9kW | (20) 5-15R | 0U |  | |
| Raritan PX-5802T (5-20P) | 20A | 1.9kW | (24) 5-20R | 0U |  | |
| Raritan PX-5812 (5-20P) | 20A | 1.9kW | (8) 5-20R | 1U |  | |
| 120 Volt Input - 30 Amp (Derated to 24A) | ||||||
| Raritan DPXR20-30L (L5-30P) | 30A | 2.9kW | (20) 5-15R | 2U |  | |
| Raritan DPXS20-30L (L5-30P) | 30A | 2.9kW | (20) 5-15R | 0U |  | |
Outlet Monitoring Rack PDU - Single Phase 208v INPUT
| Intelligent Rack PDU (Input Plug Type) | Amps | Nominal Power | Outputs | Form Factor | PDU Image | View Online Pricing Online pricing is provided by |
| 208 Volt Input - 20 Amp (Derated to 16A) | ||||||
| Raritan DPXR8A-20L6 (L6-20P) | 20A | 3.3kW | (8) C13 | 1U |  | |
| Raritan DPXS20A-20L6 (L6-20P) | 20A | 3.3kW | (20) C13 | 0U |  | |
| Server Tech CWG-16V2A313A1 (C20) | 20A | 3.3kW | (12) C13, (4) C19 | 0U |  | Call 800-638-2638 for Best Pricing |
| 208 Volt Input - 30 Amp (Derated to 24A) | ||||||
| Avocent PM2001H-401 (L6-30P) | 30A | 5kW | (3) C19 | 1U |  | |
| Avocent PM2001V-401 (L6-30P) | 30A | 5kW | (21) C13, (3) C19 | 0U |  | |
| Avocent PM3001V-401 (L6-30P) | 30A | 5kW | (21) C13, (3) C19 | 0U |  | |
| Raritan DPXR20A-30L6 (L6-20P) | 30A | 5kW | (20) C13 | 2U |  | |
| Raritan DPXS20A-30L6 (L6-30P) | 30A | 5kW | (20) C13 | 0U |  | |
| Raritan PX-5198 (L6-30P) | 30A | 5kW | (6) C13, (2) C19 | 1U |  | |
| Raritan PX-5384 (L6-30P) | 30A | 5kW | (12) C13, (4) C19 | 0U |  | |
| Raritan PX-5464T (L6-30P) | 30A | 5kW | (16) C13, (4) C19 | 0U |  | |
| Raritan PX-5810 (L6-30P) | 30A | 5kW | (6) L6-20R | 2U |  | |
| Server Tech CWG-16V2C313A1 (L6-30P) | 30A | 5kW | (12) C13, (4) C19 | 0U |  | Call 800-638-2638 for Best Pricing |
Outlet Monitoring Rack PDU - 3-Phase Delta 208v INPUT
| Intelligent Rack PDU (Input Plug Type) | Amps | Nominal Power | Outputs | Form Factor | PDU Image | View Online Pricing Online pricing is provided by |
| 208V 3-Phase Delta Input - 20 Amp (Derated to 16A) | ||||||
| Raritan PX-5508 (L21-20P) | 20A | 5.8kW | (24) C13 | 0U |  | |
| Server Tech CWG-24VDD311A1 (L15-20P) | 20A | 5.8kW | (18) C13, (6) C19 | 0U |  | Call 800-638-2638 for Best Pricing |
| 208V 3-Phase Delta Input - 30 Amp (Derated to 24A) | ||||||
| Avocent PM2002H-401 (L15-30P) | 30A | 8.6kW | (6) C19 | 1U |  | |
| Avocent PM2002V-401 (L15-30P) | 30A | 8.6kW | (21) C13, (3) C19 | 0U |  | |
| Avocent PM2006H-401 (L21-30P) | 30A | 8.6kW | (6) C19 | 1U |  | |
| Avocent PM2006V-401 (L21-30P) | 30A | 8.6kW | (21) C13, (3) C19 | 0U |  | |
| Avocent PM3002H-401 (L15-30P) | 30A | 8.6kW | (6) c19 | 1U |  | |
| Avocent PM3002V-401 (L15-30P) | 30A | 8.6kW | (21) C13, (3) C19 | 0U |  | |
| Avocent PM3006H-401 (L21-30P) | 30A | 8.6kW | (6) C19 | 1U |  | |
| Avocent PM3006V-401 (L21-30P) | 30A | 8.6kW | (21) C13, (3) C19 | 0U |  | |
| Raritan PX-5520 (L21-30P) | 30A | 8.6kW | (24) C13 | 0U |  | |
| Raritan PX-5522 (L21-30P) | 30A | 8.6kW | (21) C13, (3) C19 | 0U |  | |
| Raritan PX-5524 (L21-30P) | 30A | 8.6kW | (18) C13, (6) C19 | 0U |  | |
| Raritan PX-5902T (L21-30P) | 30A | 8.6kW | (12) C13, (6) C19 | 0U |  | |
| Server Tech CWG-24VDE311A1 (L15-30P) | 30A | 8.6kW | (18) C13, (6) C19 | 0U |  | Call 800-638-2638 for Best Pricing |
| 208V 3-Phase Delta Input - 50 Amp (Derated to 40A) | ||||||
| Avocent PM2005H-403 (CS8365C) | 50A | 12.5kW | (6) C19 | 1U |  | |
| Avocent PM2005V-403 (CS8365C) | 50A | 12.5kW | (21) C13, (3) C19 | 0U |  | |
| Avocent PM3005H-403 (CS8365C) | 50A | 12.5kW | (6) C19 | 1U |  | |
| Avocent PM3005V-403 (CS8365C) | 50A | 12.5kW | (21) C13, (3) C19 | 0U |  | |
| Raritan PX-4532 (CS8365C) | 50A | 12.5kW | (24) C13 | 0U |  | |
| Raritan PX-4534 (CS8365C) | 50A | 12.5kW | (21) C13, (3) C19 | 0U |  | |
| Raritan PX-5532 (CS8365C) | 50A | 12.5kW | (24) C13 | 0U |  | |
| Raritan PX-5534 (CS8365C) | 50A | 12.5kW | (21) C13, (3) C19 | 0U |  | |
| Raritan PX-5535 (CS8365C) | 50A | 12.5kW | (18) C13, (6) C19 | 0U |  | |
| 208V 3-Phase Delta Input - 60 Amp (Derated to 48A) | ||||||
| Avocent PM2005H-404 (IEC309) | 60A | 17.3kW | (6) c19 | 1U |  | |
| Avocent PM2005V-404 (IEC309) | 60A | 17.3kW | (21) C13, (3) C19 | 0U |  | |
| Avocent PM3005H-404 (IEC309) | 60A | 17.3kW | (6) C19 | 1U |  | |
| Avocent PM3005V-404 (IEC309) | 60A | 17.3kW | (21) C13, (3) C19 | 0U |  | |
Outlet Monitoring Rack PDU - 3-Phase Wye 208v INPUT
| Intelligent Rack PDU (Input Plug Type) | Amps | Nominal Power | Outputs | Form Factor | PDU Image | View Online Pricing Online pricing is provided by |
| 208V 3-Phase Wye Input - 15 Amp (Derated to 12A) | ||||||
| Raritan PX-5314 (IEC309) | 15A | 4.3kW | (12) C19 | 0U |  | |
| 208V 3-Phase Wye Input - 20 Amp (Derated to 16A) | ||||||
| Server Tech CWG-24VYL311A1 (L21-20P) | 20A | 5.8kW | (18) C13, (6) C19 | 0U |  | Call 800-638-2638 for Best Pricing |
| 208V 3-Phase Wye Input - 30 Amp (Derated to 24A) | ||||||
| Raritan PX-5652 (L21-30P) | 30A | 8.6kW | (18) C13, (6) C19 | 0U |  | |
| Server Tech CWG-24VYM311A1 (L21-30P) | 30A | 8.6kW | (18) C13, (6) C19 | 0U |  | Call 800-638-2638 for Best Pricing |
Bibliography
Meisner, D., Gold, B. T., & Wenisch, T. F. (2009, March). PowerNap: Eliminating Server Idle Power. Retrieved March 12, 2009, from The University of Michigan: http://www.eecs.umich.edu/~twenisch/papers/asplos09.pdf
The 42U Advantage
Power is a critical resource and an expensive reality. Let 42U show you how to optimize your power backup, distribution, and measurement for a more efficient server room. With over 17 years of data center infrastructure experience, 42U is a leader in providing outlet monitoring power distribution and a trusted source for manufacturer independent advice.
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