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The healthcare industry is on the verge of an information breakthrough. Patient data and insights are more accessible than ever, bringing an end to compromised health and unnecessary risk resulting from a lack of coordination across providers and place.
Hp Data Center Care Pdf Free
Connecting care teams with the right data is a game changer. Relationships between acute and post-acute partners strengthen, care outcomes improve, case management is scalable, and operating in a high-performance preferred partner network becomes second nature.
A 5-stage IP fabric, which typically starts as a single3-stage IP fabric that grows into two 3-stage IP fabrics. These fabricsare segmented into separate points of delivery (PODs) within a datacenter. For this use case, we support the addition of a tier of superspine devices that enable communication between the spine and leafdevices in the two PODs. See Figure 2.
In this overlay model, Ethernet VLANs are extended between leafdevices across VXLAN tunnels. These leaf-to-leaf VXLAN tunnels supportdata center networks that require Ethernet connectivity between leafdevices but do not need routing between the VLANs. As a result, thespine devices provide only basic underlay and overlay connectivityfor the leaf devices, and do not perform routing or gateway servicesseen with other overlay methods.
Leaf devices originate VTEPs to connect to the other leaf devices.The tunnels enable the leaf devices to send VLAN traffic to otherleaf devices and Ethernet-connected end systems in the data center.The simplicity of this overlay service makes it attractive for operatorswho need an easy way to introduce EVPN/VXLAN into their existing Ethernet-baseddata center.
In a centrally routed bridging overlay routing occurs at a centralgateway of the data center network (the spine layer in this example)rather than at the VTEP device where the end systems are connected(the leaf layer in this example).
The VLAN-aware bridging overlay service model enables you toeasily aggregate a collection of VLANs into the same overlay virtualnetwork. The Juniper Networks EVPN design supports three VLAN-awareEthernet service model configurations in the data center, as follows:
This option also enables faster server-to-server, intra-datacenter traffic (also known as east-west traffic) where the end systemsare connected to the same leaf device VTEP. As a result, routing happensmuch closer to the end systems than with centrally routed bridgingoverlays.
The overlay network in a collapsed spine architecture is similarto an edge-routed bridging overlay. In a collapsedspine architecture, the leaf device functions are collapsed onto thespine devices. Because there is no leaf layer, you configure the VTEPSand IRB interfaces on the spine devices, which are at the edge ofthe overlay network like the leaf devices in an edge-routed bridgingmodel. The spine devices can also perform border gateway functionsto route north-south traffic, or extend Layer 2 traffic acrossdata center locations.
MAC-VRF routing instances enable you to configure multiple EVPNinstances with different Ethernet service types on a device actingas a VTEP in an EVPN-VXLAN fabric. Using MAC-VRF instances, you canmanage multiple tenants in the data center with customer-specificVRF tables to isolate or group tenant workloads.
For example, in the edge-routed bridging overlay shown in Figure 15, border spines S1 and S2 function aslean spine devices. They also provide connectivity to data centergateways for DCI, an sFlow collector, and a DHCP server.
The data center interconnect (DCI) building block provides thetechnology needed to send traffic between data centers. The validateddesign supports DCI using EVPN Type 5 routes, IPVPN routes, and Layer2 DCI with VXLAN stitching.
EVPN Type 5 or IPVPN routes are used in a DCI context to ensureinter-data center traffic between data centers using different IPaddress subnetting schemes can be exchanged. Routes are exchangedbetween spine devices in different data centers to allow for the passingof traffic between data centers.
Physical connectivity between the data centers is required beforeyou can configure DCI. The physical connectivity is provided by backbonedevices in a WAN cloud. A backbone device is connected to all spinedevices in a single data center (POD), as well as to the other backbonedevices that are connected to the other data centers.
A data center (American English)[1] or data centre (British English)[2][note 1] is a building, a dedicated space within a building, or a group of buildings[3] used to house computer systems and associated components, such as telecommunications and storage systems.[4][5]
Since IT operations are crucial for business continuity, it generally includes redundant or backup components and infrastructure for power supply, data communication connections, environmental controls (e.g., air conditioning, fire suppression), and various security devices. A large data center is an industrial-scale operation using as much electricity as a small town.[6]
During the boom of the microcomputer industry, and especially during the 1980s, users started to deploy computers everywhere, in many cases with little or no care about operating requirements. However, as information technology (IT) operations started to grow in complexity, organizations grew aware of the need to control IT resources. The availability of inexpensive networking equipment, coupled with new standards for the network structured cabling, made it possible to use a hierarchical design that put the servers in a specific room inside the company. The use of the term "data center", as applied to specially designed computer rooms, started to gain popular recognition about this time.[7][note 4]
The term cloud data centers (CDCs) has been used.[10] Data centers typically cost a lot to build and maintain.[8] Increasingly, the division of these terms has almost disappeared and they are being integrated into the term "data center".[11]
Information security is also a concern, and for this reason, a data center has to offer a secure environment that minimizes the chances of a security breach. A data center must, therefore, keep high standards for assuring the integrity and functionality of its hosted computer environment.
Industry research company International Data Corporation (IDC) puts the average age of a data center at nine years old.[12] Gartner, another research company, says data centers older than seven years are obsolete.[13] The growth in data (163 zettabytes by 2025[14]) is one factor driving the need for data centers to modernize.
Focus on modernization is not new: concern about obsolete equipment was decried in 2007,[15] and in 2011 Uptime Institute was concerned about the age of the equipment therein.[note 6] By 2018 concern had shifted once again, this time to the age of the staff: "data center staff are aging faster than the equipment."[16]
The Telecommunications Industry Association's Telecommunications Infrastructure Standard for Data Centers[17] specifies the minimum requirements for telecommunications infrastructure of data centers and computer rooms including single tenant enterprise data centers and multi-tenant Internet hosting data centers. The topology proposed in this document is intended to be applicable to any size data center.[18]
Telcordia GR-3160, NEBS Requirements for Telecommunications Data Center Equipment and Spaces,[19] provides guidelines for data center spaces within telecommunications networks, and environmental requirements for the equipment intended for installation in those spaces. These criteria were developed jointly by Telcordia and industry representatives. They may be applied to data center spaces housing data processing or Information Technology (IT) equipment. The equipment may be used to:
Data center transformation takes a step-by-step approach through integrated projects carried out over time. This differs from a traditional method of data center upgrades that takes a serial and siloed approach.[20] The typical projects within a data center transformation initiative include standardization/consolidation, virtualization, automation and security.
The "lights-out"[37] data center, also known as a darkened or a dark data center, is a data center that, ideally, has all but eliminated the need for direct access by personnel, except under extraordinary circumstances. Because of the lack of need for staff to enter the data center, it can be operated without lighting. All of the devices are accessed and managed by remote systems, with automation programs used to perform unattended operations. In addition to the energy savings, reduction in staffing costs and the ability to locate the site further from population centers, implementing a lights-out data center reduces the threat of malicious attacks upon the infrastructure.[38][39]
The field of data center design has been growing for decades in various directions, including new construction big and small along with the creative re-use of existing facilities, like abandoned retail space, old salt mines and war-era bunkers.
Various metrics exist for measuring the data-availability that results from data-center availability beyond 95% uptime, with the top of the scale counting how many "nines" can be placed after "99%".[50]
Modularity and flexibility are key elements in allowing for a data center to grow and change over time. Data center modules are pre-engineered, standardized building blocks that can be easily configured and moved as needed.[51]
A modular data center may consist of data center equipment contained within shipping containers or similar portable containers.[52] Components of the data center can be prefabricated and standardized wh