Summary
Overview
Work History
Education
Skills
Certification
Affiliations
Timeline
Generic

Suresh K

Infra Devops And Application Support

Summary

CAREER SUMMARY: Over 11+ Years
of experience in UNIX System Administration along with VIO experience.
Extensive experience in support of UNIX OS (RHEL, Solaris & AIX), Problem Determination and solving and experience on GPFS, VCS cluster, PowerHA System Mirror and VIO Extensive experience in the design and implementation of Continuous Integration, Continuous Delivery, Hands on experience in Amazon Web Services AWS provisioning and good knowledge of AWS services like EC2, S3, VPC. TECHNICAL EXPERTISE Roles & Responsibilities:
LINUX: Brief knowledge in network configuration in Linux OS environment and Tuning NIC Parameter for better performance Linux OS/kernel upgrade planning and implementation through satellite and yum server Rebuilding GRUB, initrd/iniramfs. Experience in working with rescue mode and single user mode to troubleshoot issues related to kernel panic, filesystems or kernel parameter misconfigurations, recover root password etc. Assist project teams with creation of filesystems, install & configure application software, OS hardening etc. for newly provisioned servers Has experience in Network Bonding in Linux Good exposure in Linux LVM(File system Creation, Deletion, Rename, Increase and Decrease) Good knowledge in OS level kernel Tuning(Changing kernel parameter value as per application and database team requirement) Patch management in Linux server with YUM utility and working with satellite servers to perform patches and Iscsi configuration Installing and administering different versions Red hat Linux and other flavour’s Have good experience and understanding in Linux hardware and Operating System Have detailed knowledge and experience in installing Linux OS in VMware ESX host and taking snapshot and increasing and decreasing server resources (HDD,CPU,MEMORY) Good experience in Configuring new LUN and adding new disk from SAN side and VMware host as well RAW disk allocation for ASM configuration in database side Having good knowledge in Redhat package manager(RPM) for managing OS packages Good experience in RSYNC tool for transferring data one place to another place Good troubleshoot and demonstrate knowledge on Linux OS and HP and sun blade Hardware Brief knowledge in network configuration in Linux OS environment and Tuning NIC Parameter for better performance Having good coordination skill between ITIS team(SAN,backup,network,firewall) Patch management in Linux server with YUM utility

Overview

13
13
years of professional experience
2
2
Certifications

Work History

UNIX System Administrator

Infinite Technology Solutions Pte Ltd
  • (AIX,Linux & HP-UX)

IBM
  • AIX
  • Using alternate disk installation method when upgrading or installing TL or ML on AIX Operating system and APAR, fix installation
  • Configuring NIM master, NIM resources, installing OS on NIM clients
  • Creating file systems, checking for error report on servers
  • Running DIAG against hardware of the server to diagnose any issues
  • Designing and managing disk space using AIX Logical Volume management
  • Strong technical skills on AIX LVM and troubleshooting
  • Checking error reports and health check of the servers, running snap on AIX Server to analyze system issues
  • HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing file system in cluster file system, synchronizing cluster resources and cluster verification
  • Hands on Experience in 6.1 and 7.1 OS migrations using NIMADM
  • NFS Administration, exporting file system, mounting exported file system, working nfs daemons and fixing any mounting issues
  • Troubleshooting booting related issues, creating boot records, working with system maintenance mode, accessing rootvg in system maintenance mode, recovering root password, fixing booting related issues, working with boot list
  • Performance problems determination using vmstat, topas, iostat and finding resolution by analysing the performance reports
  • Adding the Virtual SCSI and virtual Ethernet adapters to the VIO & LPAR Partitions Configuring Shared Ethernet Adapter (SEA)
  • Configuring & Testing MPIO in LPARS AND configuration of NPIV and assigning disks through NPIV adapters
  • LPAR operations including: scheduling operations, troubleshooting activation errors, configuring and using system profiles, and activating and shutting down partitions, Power on/off partitions
  • Hands-on with root password recovery
  • Updating GPFS version from GPFS 3.5 to IBM Spectrum Scale 4.2.1 & from GPFS4.1.1.7 to GPFS4.1.1.14
  • Performed VIOS migration from VIOS2.2.6.32 to VIOS3.1.1.21
  • Working different backups(mksysb, savevg, backup) and restore.

Infra Devops and Application Support Lead

UOB
08.2021 - Current
  • Performed software application and disaster recovery testing to guarantee business readiness following fail-overs.
  • Collaborated with developers, analysts and project managers to expedite incident resolutions.
  • Demonstrated advanced knowledge of software delivery lifecycle and varied delivery methodology.
  • Analyzed and troubleshot integration issues related to system configuration, data, maps and workflows.
  • Infra setup and application deployment's by using jenkins,Aldon pipe lines

UNIX System Administrator

LTA, Infinite Technology Solutions Pte Ltd
02.2021 - Current
  • AIX,Linux & Solaris)

DBS Bank, Microland Limited
11.2014 - 01.2021

Designation System Administrator

GE Home Electric Products
08.2010 - 10.2014

Education

Clusters VCS6.2, VCS 7.1, VCS7.2, GPFS3.5, 4.1 and IBM Power HA 5.5, 6.1, 7.1, 7.2 - undefined

Providers

AWS - undefined

B.com computers - undefined

SV University

Skills

HARDWARE & OS SKILLSundefined

Certification

IBM Certified System p Administrator

Affiliations

ADMINISTRATOR

Timeline

Infra Devops and Application Support Lead

UOB
08.2021 - Current

UNIX System Administrator

LTA, Infinite Technology Solutions Pte Ltd
02.2021 - Current

DBS Bank, Microland Limited
11.2014 - 01.2021

Designation System Administrator

GE Home Electric Products
08.2010 - 10.2014

UNIX System Administrator

Infinite Technology Solutions Pte Ltd

IBM

Clusters VCS6.2, VCS 7.1, VCS7.2, GPFS3.5, 4.1 and IBM Power HA 5.5, 6.1, 7.1, 7.2 - undefined

Providers

AWS - undefined

B.com computers - undefined

SV University
Suresh KInfra Devops And Application Support