Weak current College】 【traditional UPS expansion costs detailed analysis.

<br> <br> APC's 6 white paper: "determine data center and network room infrastructure TCO", uninterruptible power supply (UPS) system design can expand sex can greatly reduce the total cost of ownership. This is because the data center is installed .on more devices, which can expand with flexibility to adjust the size of the infrastructure to meet the critical load requirements. <br> <br> Although here referring to the total cost of ownership of the financial model did not mention can expand the economic benefits .brought about by the USP system, but if you can not stop and directly in operation extended USP system to meet the load growth, then no doubt you can implement the strategy of the company directly to create profits. This article on using the traditional type of .UPS UPS capacity expansion of the actual costs, and can expand the UPS system cost. <br> <br> Case study: two extension methods <br> <br> Some it managers face the following problems: as a 4800 square feet of data .center design a N + 1UPS system, and eventually extended capacity of 50W per square foot. This means that the total load on the UPS power will eventually reach 240kW, and should have sufficient redundancy so that you can remove one power supply module for maintenance, .or in the maintenance process still guarantee the normal power supply. <br> <br> Now there are two options to choose from: traditional or based on the rack of can expand the system. The traditional system, you can add a parallel bus traditional .UPS power module to provide a degree of can expand, but must be in original power on the acquisition of a parallel dongle, and new power supply module should have sufficient power handling capacity to enable end UPS system configuration to meet the full load power handling capacity .requirements. But based on the rack of can expand the system, not just the same as load increases extended power capacity, but also to avoid buying large parallel system cabinet and makes the cost increase. <br> <br> Traditional solutions <br> .<br> In order to minimize the project's upfront costs, IT managers plan through a phased purchase system to realize traditional system can expand. In order to compare the two methods of cost, it is assumed that the load each time increment 80kW. The start .takes two to 80kW traditional UPS modules, in accordance with the N + 1 configuration, use either the module to load for the initial 80kW. When the load growth to exceed the capacity of 80kW redundant system, management plans to install a module, 80kW to .meet to 160kW load capacity requirements while maintaining redundant UPS capacity. As the load increases, the last one will be installed at last an 80kW ups module, total capacity reaches 240kW, including redundant module 80kW. Thus, traditional UPS system for final configuration into four .parallel module. It fully embodies the traditional UPS system can expand to a certain extent. In the traditional system of ultimate power configurations, required all parallel device costs are included in the initial acquisition costs. <br> <br> Another programme <br> .<br> For business decision making, made another similar methods, which use the expandable based on Rackmount UPS systems. To meet the load requirements initially 80kW, a start will need to purchase a device with a capacity of 80kW, but based on the rack .of can expand the system in the device has a capacity of up to 10kW redundant power supply modules, thus eliminating the need to purchase another device to provide 80kW N + 1 configuration. Because you can expand the system does not require large-scale parallel distributed .electronic equipment, so this part of the cost can be saved. When the load exceeds 80kW, then buy a device whose output is used for the additional load. The device also has a built-in N + 1 redundant module. When data center load .grow to maximum capacity, install the third 80kW device, the device also has a built-in N + 1 redundant module. <br> <br> Whether using Rackmount UPS system that can expand or traditional UPS system, two approaches result looks the same .. It is true that if traditional UPS system component costs cannot be less than N + 1 is based on the rack of a component can expand system cost, continue to use the traditional system of business decisions. However, the policy there is a big problem .. <br> <br> Scale of costs <br> <br> IT managers are faced with two design options, you must consider the expansion of the system capacity and its influence on it operations. <br> <br> A traditional UPS .installed in your system so that the desired module (for expansion and redundancy) parallel connection of devices with a common connection point for the module output through this connection points to connect to the load distribution electrical cabinet. This is the "total electric cabinet", .used to connect the UPS module provides power. In the system the initial pilot phase the modules in parallel, load sharing and redundant capabilities. If you want to add in the traditional system modules, you must always switch off the power to securely connect to the .new module, and you must run the test again to reexamine the entire new system functionality. In order to implement the described on the traditional system expansion plans, the need to shut down critical bus power at least twice. If no unexpected events occur, typically .connection and testing the traditional UPS expansion module required downtime for 24 hours. <br> <br> Therefore, to use traditional UPS device expansion, IT managers must consider breaking it operations at least two 24 hours this cost. Costs include: <br> .Loss of processing time. <br> <br> Shut down the server / processor power and technical personnel costs. <br> <br> The operating system to minimize the impact the cost of application experts. <br> <br> Customer management .meeting time. <br> <br> Management planning meeting time. <br> <br> Unexpected thingsThe planning time. <br> <br> Open the server / processor power and technical personnel costs. <br> <br> Verify that .the operating system will recover the cost of application experts. <br> <br> Large-scale rollout costs (required to inspect the expansion after the UPS system, and therefore all output also need to load configuration cable, instrumentation, professional and technical personnel ., etc.). <br> <br> This is the extension of traditional UPS system has had to pay the price "of". <br> <br> Cost estimation <br> <br> Extending the traditional system downtime of two .24-hour, their cost can be estimated as follows: <br> Assumptions: <br> <br> 1. only the low-level application causing economic loss to a minimum, a conservative estimate downtime costs $ 10,000 / hour. (In .certain critical application downtime costs estimated at $ 500,000 / hour, for certain financial institutions is higher.) <br> 2.IT managers are familiar with this process. <br> 3. in the system design stage already took into account the technical details ., only with changes in the management process and coordinate resource, management time can be reduced to a minimum. <br> 4. technical staff is outsourcing personnel, and IT equipment providers signed a service agreement. <br> 5. as the only company .numerous accidents planned downtime, so an accident can simplify the planning process. <br> 6. application experts is run on the device for IT business applications provide software support outsourcing personnel. <br> <br> After the downtime cost analysis, you can .learn that traditional expansion solution must be on the basis of the initial investment of at least $ 51,200 additional costs. The cost to complete the required two complete outages provide basic technical services. <br> <br> <br>.