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Current Trends in Biotechnology and Pharmacy Vol. 5 (3) 1353-1361 July 2011, ISSN 0973-8916 (Print), 2230-7303 (Online) 1357 create virtual machines. A virtual network is created between VMs hosted on the same physical system with no virtual network traffic consuming bandwidth on the physical network. The solution that has been implemented at the CRO under study has the virtual infrastructure containing VMware VMotion, VMware® Distributed Resource Scheduler (DRS) and VMware® High Availability (HA). VMotion allows VMs to be seamlessly relocated to different systems while keeping their MAC addresses (1). There is no downtime required to move VMs within compatible pools of servers. The CRO has deployed 90% of Windows and Linux servers running inside of VMware ESX server as virtual machines and the complex applications like Lotus Notes and HP Trim (Content Management Software) have been implemented inside virtual machines and found to be running very smoothly. Server virtualization helps : DC-DR NETWORK ARCHITECTURE Remote Users DNS Server at ISP Cisco 3845 Router Router DMZ Nokia Checkpoint Firewall VAX App Users Cisco 6513 with a) Firewall Module b) IDS Module CRO Intranet WAN DR Server Farm Satillite Users DR Switch Cisco Pxi Firewall FCIP Gateway DC : Dual Core Switches FCIP Gateway Data Replication using CA Arbitration Server Information Technology Consolidation with Virtualization
Current Trends in Biotechnology and Pharmacy Vol. 5 (3) 1353-1361 July 2011, ISSN 0973-8916 (Print), 2230-7303 (Online) 1358 Fig. 2. Data center with virtualization 1. To increase hardware utilization and reduces hardware requirements with server consolidation (also known as Physical-to- Virtual or P2V transformation). 2. To reduce required data-center rack space, power cooling, cabling, storage and network components by reducing the sheer number of physical machines. 3. To improve application availability and business continuity independent of hardware and operating systems. 4. To improve responsiveness to business needs with instant provisioning and dynamic optimization of application environment. Virtualization has brought an advantage to make data center more dynamic and providing performance, flexibility and capacity at a much lower cost, enabled the automatic and dynamic allocation of resources depending on workloads and business requirements. VMware technology has helped to replicate data from primary to secondary with Site Recovery Manager (SRM) thereby creating resiliency from a disaster recovery perspective as well as creating the snapshot of these virtual machines to replicate them to other sites (2). Data center applications: The CRO under study has a variety of applications deployed at its data center. Some of the key systems deployed have been described below. Enterprise management system: As the virtual IT infrastructure becomes more dynamic in order to meet on-demand application delivery, the Enterprise Management Software (EMS) tools given below are used to control and manage the infrastructure at the CRO. SiteScope: At CRO, SiteScope (3) has been implemented that helps to monitor the availability of hardware along with operating system as well as the status of all applications deployed at DC and DR SiteScope is a Webbased agent-less monitoring solution designed to ensure the availability and performance of distributed IT infrastructure. The real time data collected from SiteScope by monitoring the total infrastructure would be used for trend analysis Chavali et al
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Page 175: (December 7-9, 2011) Venue: Karunya
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