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Cisco Nexus Switches - Call PBM IT Solutions at (888) 233-6471A data center is a computer facility designed for continuous use by several users, and well equipped with hardware, software, peripherals, power conditioning and backup, communication equipment, security systems, etc. Approximately half of the power consumed by a data center is required for cooling. As heat load increases, more floor space must be reserved for cooling equipment. Without high ceilings (20 feet or more), the hot exhaust air of servers is likely to become in-take air for servers mounted in the upper portion of a cabinet. There is no single, standardized method to account for data center costs. Users need to define a chart of accounts that specifies all the cost elements that constitute the overall cost, and the key portfolios or categories (such as servers, software and networking) that are part of that cost. In-house data centers can be a business weak link if proper attention isn’t paid to power use, cooling capacity, disaster recovery preparedness, running IT to support compliance initiatives, and staffing flexibility to support utility computing initiatives. Storage virtualization is the pooling of physical storage from multiple network storage devices into what appears to be a single storage device that is managed from a central console. Storage virtualization is commonly used in storage area networks (SANs). While virtualization faded from the limelight for a while, it is now one of the hottest trends in the industry again, as organizations aim to increase the utilization, flexibility and cost-effectiveness in a distributed computing environment. VMWare, Citrix, Microsoft, IBM, RedHat and many other vendors offer virtualization solutions. While you might think that the chances of having a major loss of data on your computer or even having your entire computer crash are very small, disasters happen and it is always best to prepare for the worst, especially when it comes to something as irreplaceable as your files. The Cisco UCS uses three adapter types, with four specific models: the Cisco UCS 82598KR-CI 10 Gigabit Ethernet Adapter, UCS M71KR-Q QLogic Converged Network Adapter, UCS M71KR-E Emulex Converged Network Adapter, and UCS M81KR Virtual Interface Card. Each of these cards has a pair of 10 Gigabit Ethernet connections to the Cisco Unified Computing System backplane that support the IEEE 802.1 Data Center Bridging function (formerly called Cisco Data Center Ethernet) to facilitate I/O unification within these adapters. On each adapter type, one of these backplane ports is connected through 10GBASE-KR to the A-side I/O module; then that connection goes to the A-side fabric interconnect. 10GBASE-KR is a copper midplane technology for interfacing adapters and switching elements through these midplanes. The other connection is 10GBASE-KR to the B-side I/O module; that connection then goes to the B-side fabric interconnect. Figure 3 later in this document shows this connectivity. A green data center is a repository for the storage, management, and dissemination of data in which the mechanical, lighting, electrical and computer systems are designed for maximum energy efficiency and minimum environmental impact. High availability data systems optimize the reliability of data storage systems by providing redundancy only of critical components to eliminate single points of failure. A single point of failure occurs when the failure of a single component of a system causes the entire system to cease operating, resulting in the potential loss of data. Therefore, one goal in designing a high availability data storage system is to provide a satisfactory level of reliability while keeping the cost of the system in check. Nexus sets the stage for converged Fibre Channel and Ethernet networks. The Nexus products will allow companies to consolidate their separate server and storage networking infrastructures onto one unified network fabric. |
