Marimuthu Narayanasamy Email & Phone Number

Singapore

Primary Duties/Responsibilities• Monitor backlog of open tickets for assigned customers and provide periodic status reports on them.• Responsible for the day to day administration and availability of DC systems and applications.• Monitor performance, disk space, and usage for all servers that support the business.• Work collaboratively within own team and across teams to contribute to team and assigned project deliverables.• Follow the company change control process to… Show more Primary Duties/Responsibilities• Monitor backlog of open tickets for assigned customers and provide periodic status reports on them.• Responsible for the day to day administration and availability of DC systems and applications.• Monitor performance, disk space, and usage for all servers that support the business.• Work collaboratively within own team and across teams to contribute to team and assigned project deliverables.• Follow the company change control process to implement system and applications changes.• Perform and coordinate troubleshooting efforts for open incidents.• Perform duties associated with build of environments for PROD, DR, DEV and QA.• Meet with the business users to review system and data problems when necessary.• Perform monthly outage weekend and quarterly disaster recovery tests.• Coordinate with system vendors to resolve systems issues in a timely manner.• Ensure 24/7 availability and manage critical incidents; troubleshoot issues to full resolution.• Ensure the environment is current on service packs and security fixes.• Support projects and enhancements.• Partner with peers to gather requirements and deliver technical solutions.• Set up proof of concept environments to stay current on the newest technologies• Analyze requirements and review detailed design docs and functional specifications• Contribute to the evaluation and selection of hardware and software technology and product standards, as well as the design of standard coHardware and/or Software Installations; Testing; Troubleshooting; IT Systems Management; Performance Measurement and Tuning; Business Continuity; Physical and Logical Security; Systems Lifecycle • Knowledge of Citrix products (. XenDesktop, XenApp, XenServer, PVS, MCS, WI)• Solid understanding of networking, Windows operating systems, Virtualization , XenServer ,Hyper-V , and in-depth troubleshooting• ITIL v3 Foundation certified and solid experience that follow ITIL processes Show less

Singapore

I am part of the global wintel operations team which is responsible for the daily support of the IT infrastructure consisting of over 1500 servers residing in 4 large datacentres and hundreds of smaller sites worldwide. This team is managed as a global team.Activities related to MS Active Directory, Group Policy IIS, DHCP, DNS Administration of IIS. Messaging, Virtualization….Vmware :- Vsphere 4.X , Vcenter 4.X ,ESX 3.5 ,Vmware ServerCitrix :- XenApp 5.5 ,Provisioning… Show more I am part of the global wintel operations team which is responsible for the daily support of the IT infrastructure consisting of over 1500 servers residing in 4 large datacentres and hundreds of smaller sites worldwide. This team is managed as a global team.Activities related to MS Active Directory, Group Policy IIS, DHCP, DNS Administration of IIS. Messaging, Virtualization….Vmware :- Vsphere 4.X , Vcenter 4.X ,ESX 3.5 ,Vmware ServerCitrix :- XenApp 5.5 ,Provisioning Server desktop imaging, system patching, and software delivery to all Microsoft and VMware based systemsResponsibilities:Daily management & 3rd line support of Windows environment: incident & problem handling, maintenance tasks, Incident, Daily checks, work order execution ( HP openview)Assessment and approval of change requestsCreation and maintenance of technical documentation and procedures Participate in technical project related activities Participate in on-call/watch duty (manage a 24x7x365 global server environment)Communicate or escalate with direct colleagues and other teams as requiredDatacenter hardware setup & support when required Projects Involved:DC refresh - Worldwide Server Virtualization.Migrated - Physical to Virtual (P2V) ,Migrated - Physical to Physical (P2P Blade) – Rebuilt on a small form factor, low power consumption serverblade.Consolidated (Physical Server) – Functionality from similar, underutilized servers aggregated on a single physical server for better utilization.Moved – Existing server remains intact and is physically moved into space vacated by one of the above methods.Implemented Virtual Datacenters – planned and designed VMware Center in all the region & manage globally (linked mode )Implement App-V / XenApp5/6 Technology Migrating more than 10k users from Presentation Server 4, Metaframe XP to Citrix XenApp5/6 Citrix servers virtualized using VMware Provisioning Services standardized server image Show less

Singapore

Responsibilities • A Member of the “SoEasy Facility management Team” • Managed (SLA 99.95) and Supported 3 Ministry’s Projects.• More than 60 wintel Servers (windows 2003, 2008, • VMware ESX 3.5, V sphere 4 Server’s• EMC SAN Storage & SUN Servers • Breack fix, threshold• 2nd level Technical Support to 200 Servers• Troubleshooted• Resolved performance issues ( CPU, memory usage etc )• Configured & Deployed VMware ESX Server, Windows -… Show more Responsibilities • A Member of the “SoEasy Facility management Team” • Managed (SLA 99.95) and Supported 3 Ministry’s Projects.• More than 60 wintel Servers (windows 2003, 2008, • VMware ESX 3.5, V sphere 4 Server’s• EMC SAN Storage & SUN Servers • Breack fix, threshold• 2nd level Technical Support to 200 Servers• Troubleshooted• Resolved performance issues ( CPU, memory usage etc )• Configured & Deployed VMware ESX Server, Windows - 2000/2003/2008 Servers (Physical & Virtual)• OS installation, server hardened, Mounted in the Rack and cabling.• Configured, Deployed & Troubleshooted Active Directory, Group Policy IIS, DHCP, DNS Administration of IIS, Weblogin , MSSQL database• Performed Disaster Recovery• Recovery of Failed serversAdditional Responsibilities• Regular ( every Morning ) check of all the servers• Ensure the backup• Monitored the Server health states using (HP OpenView)• Performed application team customer service request, & follow-up the remedy Tickets • Organized monthly meeting with customer • Review and performance meeting• Handled critical issues & hardware and software problems. • Analyzed and resolved the monthly user’s feedback.• Worked with a team to maintain, troubleshoot, and repair 24x7 Enterprise Datacenter environments.• Provided backup support by install and configure Backup Exec. Show less

Singapore

• Support and Maintenance of Windows Server Environments & also Support to users. Designed and administrated server consolidation program through use of VMware ESX server and VMware VirtualCenter. The environment has grown to over 10 ESX hosts and 90 Virtual machines production environment. • Designed the performance monitoring processes and improved disaster recovery processes to utilize virtualization benefits.• Providing an Overall 2nd level Technical Support to 200 Servers… Show more • Support and Maintenance of Windows Server Environments & also Support to users. Designed and administrated server consolidation program through use of VMware ESX server and VMware VirtualCenter. The environment has grown to over 10 ESX hosts and 90 Virtual machines production environment. • Designed the performance monitoring processes and improved disaster recovery processes to utilize virtualization benefits.• Providing an Overall 2nd level Technical Support to 200 Servers, Windows/Wintel 2003 Active Directory Environment• Configured & administered Citrix Metaframe Server 4.x, Microsoft Terminal Services• Single point of contact for the Wintel Server support Team.• Configured & Deployed SQL Server 2000 & Oracle 8i,• Installed & configured servers, tape libraries, routers, switches, hardware encryption, IP KVMs, network testers/analyzers, product related management/monitoring software• Troubleshooted performance related issues such as CPU usage, Memory usage.• Configured & Deployed Windows/WinTel - 2000/2003 Servers (Physical & Virtual)• Configured, Deployed & Troubleshooted Active Directory, IIS, DHCP, DNS Mail Enable, Smart Mail ) • Microsoft Exchange Server 2003 (Troubleshooting, performance tuning, user related issues)• Installed Software, Updated patches & firewall polices and Troubleshooted hardware.• Monitored servers globally using Microsoft Operations Manager (MOM)• Performed Disaster Recovery on servers that have failed.• Performed Disaster Recovery Testing and planning in case of major failure or disaster.• Troubleshooted and resolved remote as well as local software and hardware failures.• Configured, Deployed & troubleshooted CISCO Routers, Firewall PIX 515,• Racked and Cabled servers in enterprise datacenters• Configured hardware, OS, Applications, Databases and all associated hardware based on architected specification.• Worked with a team to maintain, troubleshoot, and repair 24x7 Enterprise Datacenter environments. Show less