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ERP Software Evaluation Reports
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Documents related to » pdu


Increasing Data Center Efficiency by Using Improved High-density Power Distribution
Increasing Data Center Efficiency by Using Improved High Density Power Distribution. Download current White Papers for Data Center Efficiency and High Density Power Distribution. North American server installations are uniquely inefficient because of multiple circuits, use of floor space and weight, and more. A new approach to power distribution for high-density server installations saves floor space, simplifies power cabling, saves capital cost, reduces weight, and increases electrical efficiency. Learn more about how this distribution architecture can provide you with numerous benefits.

PDU: line) Elimination of the PDU transformers A transformer that is used to change 277/480 V to 230/400 V at the output of the UPS. These items are explained in more detail in the following sections. Three-phase branch power distribution 230V (line to neutral) instead of 208V (line to line) While the proposed power distribution method sounds like a minor change, it actually creates a very large impact on the power distribution system. First, the typical North American three-phase branch power distribution i
6/25/2008 5:36:00 PM

An Improved Architecture for High-efficiency, High-density Data Centers
An Improved Architecture for High-Efficiency, High-Density Data Centers. Documents and Other Computer Software to Use In Your High-Efficiency, High-Density Data Centers. Globally, data center power and cooling infrastructure wastes more than 60 million megawatt-hours per year that do not contribute usefully to powering IT equipment. This is an enormous financial burden on industry, and is a significant public policy environmental issue. Find out about the principles of a new data center architecture that can be implemented today to dramatically improve the electrical efficiency of your data center.

PDU: the effect of removing PDU transformers. For more about the use of high-efficiency 415/240 V AC distribution in North American data centers, see APC White Paper 128, Increasing Data Center Efficiency by Using Improved High-Density Power Distribution. Variable-speed drives on pumps and chillers Improves cooling efficiency Pumps and chillers in the data center cooling plant traditionally operate with fixed speed motors. The motors in such arrangements must be configured for maximum expected load and worst c
6/25/2008 5:08:00 PM

Emerging Services for Wireless Carrier Networks--Design Abstract
Emerging Services for Wireless Carrier Networks--Design Abstract. Analysis for Emerging Services for Wireless Carrier Networks The transition to IP A wireless carrier s national or regional next generation core network will be an all-IP network in the sense that IP will be the network layer (L3) protocol. MPLS (Multiprotocol Label Switching) will be the transport protocol for all IP-based services, applications, and control and management traffic in the network. Learn more in this white paper.

PDU: Ipv4 | PDA | Pdu | PPP | PPP | PSTN | Personal Digital Assistant | Personal Digital Assistant PDA | Point-to-Point Protocol | Point-to-Point Protocol PPP | Protocol Data Unit | Protocol Data Unit Pdu | Public Switched Telephone Network | Public Switched Telephone Network PSTN | Qos | Quality of Service | Quality of Service Qos | Sigtran | SS7 | SS7 Over IP | SS7 Over IP Ss7oip | Ss7oip | Signaling System 7 | Signaling System 7 SS7 | Signaling Transport Working Group | Signaling Transport Working Group Sig
11/8/2005 12:54:00 PM

Deploying High-density Zones in a Low-density Data Center
Deploying High-Density Zones in a Low-Density Data Center. Documents and Other Software Package to Use In Your Low-Density Data Center. New power and cooling technology allows for a simple and rapid deployment of self-contained high-density zones within an existing or new low-density data center. The independence of these high-density zones allows for reliable high-density equipment operation without a negative impact on existing power and cooling infrastructure—and with more electrical efficiency than conventional designs. Learn more now.

PDU: of zone-specific UPS and PDU configurations in cases where the existing data center UPS is at capacity or is being phased out due to endof- life. These systems are rack-based and designed to be modular and scalable. Configurable with any level of redundancy Redundancy levels vary depending upon the criticality of the IT assets. Traditional data center design is such that the entire physical infrastructure is built to satisfy the redundancy requirements of the most critical set of assets. This type of desi
6/25/2008 5:31:00 PM

Strategies for Deploying Blade Servers in Existing Data Centers
Strategies for Deploying Blade Servers in Existing Data Centers. Documents and Other Software System to Use In Your Data Center System Linked To the Blade Servers Blade servers have a major advantage over traditional ones—improving processing ability while using less power per server. But, with their smaller footprint, blades can be much more densely packed, resulting in racks that use up to 20 times the electrical power and generate up to 20 times the heat. This can stress power and cooling system capability. Learn how to create a power and cooling strategy with these guidelines.

PDU: nearby Power Distribution Unit (PDU) capacity, and 3) Insufficient quantity of breaker positions. Any of these problems can prevent the ability to deliver high density electrical power. Note that of the two key problems described, the cooling distribution problem is the main constraint. For this reason, the primary focus of this paper is on selecting a cooling architecture. The power architecture will follow from the selected cooling architecture and is dependent on the specific brand of blade server. For
3/9/2009 3:57:00 PM

Guidelines for Specification of Data Center Power Density
Guidelines for Specification of Data Center Power Density. Find Free Platform and Other Solutions to Define Your Project In Relation To Data Center Power Density. Conventional methods for specifying data center density don’t provide the guidance to assure predictable power and cooling performance for the latest IT equipment. Discover an improved method that can help assure compatibility with anticipated high-density loads, provide unambiguous instruction for design and installation of power and cooling equipment, prevent oversizing, and maximize electrical efficiency.

PDU: but supplied by a PDU or UPS that is rated for the average rack density multiplied by the number of IT racks. This is simple to implement. However from a cooling perspective, each rack does not have a well defined air distribution system that is rated at twice the average rack density. Racks operating at a density above the average must borrow underutilized capacity from neighboring racks that operate at below the average rack density. In the case of the raised floor which has limited airflow capacity,
12/8/2008 2:10:00 PM

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