Sureshkumar Ramakrishnan

**** * ********* ****, *** 2048, Chandler, AZ 85226 Mobile: +1-480-***-**** Email ID: adbgsi@r.postjobfree.com

Summary

An accomplished Technical Lead and System Administrator with 9 years of experience supporting Unix Servers. Expert in Systems Management, Migrations, Virtualization, Mobility Management, Cluster and DR Support. Experience covers working in multisite corporate environments with structured practices (ITIL).

Technical Areas of Expertise

LINUX Administration– Installing, configuring, patching, automating time consuming jobs in RHEL and SUSE servers

AIX Administration - Work Includes creating configuring supporting AIX Lpars. User administration, performance tuning, OS upgrades, Interim Fixes, software installations, Lpar migrations, Hardware and software issues troubleshooting, scripting.

Virtualization - Plan and implement a virtualized environment on P-Series, ProLiant Blade systems. Patching Linux servers, Linux VMs, ESX, VMs. Creation configuration and upgrading of Dual VIO servers and clients, configuring SEAs, VSCSI, NPIV, VMR, SRR on VIOS. Performance Tuning.

VMotion/LPM/SRR – Move resources based on customer request to better manage system resources and perform system maintenance.

POWERHA/HACMP/vSphere clusters – Create, upgrade and manage HA clusters to support highly critical applications.

Disaster Recovery - Perform IT Continuity test annually and improving DR procedures.

Health Checks - Perform Regular Health checks on AIX, Linux servers, VIOS and HMC using CCS and Qualys tools to support internal and external audits. VM objects in vCenter.

HMC/Frames /ProLiant- Support and perform HMC/Frame/ProLiant SPP upgrades and troubleshooting as needed.

Work Experience

LINUX/AIX ADMINISTRATOR

Wipro Limited. Customer: Nestle - USA -March 2017 – to Present

Responsibilities

Responsible for USA Data Center Servers 100% Availability.

Support enhancements for Phoenix and Mesa Data centers.

Involved in the preparation of Project Plan, Project Road Map and Infrastructure Planning

On-call production support and troubleshooting Linux, AIX server’s issues.

Part of hardware consolidation, relocating, decommissioning and setting up new hardware in DC.

Expertise in creating shell scripts which would help in automation and simplification of jobs

Automation/Configuration management using puppet.

To maintain Floor space and to reduce power utilization by converting physical servers to virtual (VMs, VLPARs) from old Servers to new Servers.

Vendor co-ordination in H/W replacement/maintenance

Co-ordination with facilities/Network for switch/cable replacements.

Migration of Linux/AIX Systems from old hardware to new Hardware.

Administration of Redhat Linux (5.x, 6.x, 7.x), Suse Linux (10, 11, 12) and AIX (5.3, 6.1, 7.1).

Upgrading and maintenance of HMCs (7.9, 8.3, 8.6).

To maintain the standard performs Regular Firmware and microcode updates.

Converting Physical machines to Virtual machines (P2V).

Raising Change Request in SM tool for all activities and implement the Change

Co-ordinate with multiple teams and upgrade Operating system, software and tools in a single outage window

Providing level 3 support for incidents and changes.

Providing root cause analysis for the critical issues (in lean way).

Build and deliver the servers based on the business requirements.

Installation and configuration of RHEL 6.x,7.x SuSe 11,12

Migration of AIX OS from 5.3 to 6.1, 6.1 to 7.1, 7.1.3 to 7.1.4 on pSeries servers.

Management, patch management, regular system administration tasks.

Administered adding/removing/configuring LUNS, Vpaths using SDD/SDDPCM/HDS.

OFFSHORE UNIXTECH LEAD

Wipro Limited. Customer: Nestle - INDIA – Nov 2015 to March 2017

Primary contact for the technical activities for zones like USA, Europe and Singapore

First technical escalation point for the offshore team consist of 25 members

Primary implementer for any new process or new technology requested by Customer

Coordinates critical activities planned for offshore by explaining the details to the team and allocating necessary resources

Create change request based on project requirement or for incidents/request and implement it

Perform root cause analysis and providing permanent solutions

EUROPE ONSHORE CO-ORDINATOR

Wipro Limited. Customer: Nestle - SWITZERLAND – Nov 2013 to Nov 2015

Act as a technical liaison between the business clients and the technical team

Perform maintenance activities in a large environment composed of a mix of different UNIX/Linux, platforms and configurations. Trouble-shoot hardware, software and network related problems.

Involved in preparation of Servers Migration plan, project road map, resource utilization effort documents

O/S System upgrades, migrations, Installation Packages and patches

Consolidated and migrated all Development/Production servers to new Hardware.

Co-ordinated in the Preparation of Capability deck documents, User manuals and Training materials.

Installation, configuration and remediation of various Security software

Coordinate and manage issues and escalations to and from Off-Shore teams

Working with multiple teams in solving technical issues.

Trouble shooting of day-to-day system and user problems, Escalation Support, Providing support to customers via ticketing for Linux/UNIX servers. Completing all project requirements as requested in a timely manner.

Analyze the repeated tickets and issues, provide permanent solutions to reduce the Tickets counts

Coordinate within Wipro to produce SLA reporting as per defined format, timelines

Proactively collaborate to achieve continuous improvement initiatives of Services

Ensuring Team KPI's are green by taking proactive measures

EUR L3 SYSTEM ADMINISTRATOR

Wipro Limited. Customer: Nestle - GERMANY – Mar 2013 to May 2013

Involved in Mainz and Frankfurt Growth Project Plan and Infrastructure Planning.

Brought EUR Data Centers under 100% compliancy.

Hardening the Unix servers to meet the compliance and ISO standards.

Extended support to Bussigny and Vevey data centers.

SYSTEM ANALYST

Wipro Limited. Customer: Nestle -: INDIA - Jan 2010 to March 2012

Administering Datacenter with 24* 7 supports for 2000 + IBM pServers and ProLiant Systems.

Logical Volume Manager Administration. (Creating and Managing NFS, ext3, jfs and jfs2 file Systems, Volume groups, logical volumes on SAN (IBM and Hitachi Storage))

Configured and maintained NIS, NFS, FTP servers on Linux.

worked in Red Hat Package Management RPM, YUM and IBM Package management Smitty, Installp tools

Firmware upgradation, ML upgradation, Installations of packages, bundles on P5/P6

Servers’ thro NIM.

Installation and Configuration of LPARs, DLPARs for Linux and Aix Systems.

Installation, Configuration and administration of IBM HACMP/VIO Servers.

Performance monitoring using third party tools.

Restoration – mksysb, TSM (Backup will be performed by TSM team)

Implementation In- system replication for business critical servers.

NIC, Ether channel, bonding, teaming configuration.

Handled troubleshooting day-to-day problems via opening and closing tickets

Using Peregrine Service Centre and service Manager.

Decommission of RS6000, P5 Series and older Gen Series servers.

Performed IBM to Hitachi storage migration on standalone and Cluster servers.

Worked on new server builds for new projects including AIX servers and coordinating with different groups to achieve target date.

Problem management related with vpath and SCSI adapters.

Providing work around and permanent solutions.

Certifications

Certified AWS Solutions Architect Associate

Certified Redhat System Administrator

Certified IBM System Administrator

Education

·Bachelor of Engineering (Electrical and Electronics Engineering).

Diploma (Computer Technology).

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