Customer Service System Administrator
Resume:
Suman
******@***************.***
Professional Summary:
Seasoned Linux System Administrator 7+ years successfully managing diverse distros and multi-site remote servers with SAP as a client.
Proficient at streamlining all scales of system architecture, from single terminals to 14000+ networked servers.
Expert at maintaining smooth operation of Linux-based servers and managing with dynamic performance in environments relying upon diverse operating systems.
Extensive experience in Unix performance tuning configuration and capacity planning.
Used and troubleshot Network Protocols (such as ARP, DNS, SMTP, HTTP, NTP, TCP/IP, SSH and FTP).
Installed firmware upgrades, kernel patches and systems configuration on Unix/Linux systems.
Knowledge of Linux internals and utilities (kernel, Memory, Swap, CPU).
Worked with a variety of specialists including, a VMware administrators, Windows administrators, Developers, DBAs, and Network specialists. Self-starter, team player and result oriented.
Technical Skills:
MS Office Suite, Red Hat Linux, Bash Shell Scripting, Apache Tomcat, SSH (secure shell), VMware, NAGIOS monitoring tool, vSphere Client, vCenter Server, VMware Workstation, Virtual Box, Deploy OVF templates, VMotion Putty, WinSCP, Chef, Puppet, Ansible, Jenkins, AWS, MYSQL, Windows/Unix, Solarwinds, Splunk.
Good Knowledge of LVM, which include creating PVs, VGs, LVs and filesystems and
troubleshooting.
Strong knowledge of large-scale Linux deployment methodologies, kernel
configuration, performance monitoring, and tuning.
Work History:
United health Group, Plymouth, MN Dec 2022 - Present
Linux System Administrator IV
• Responsible for configuring Volume Group using LVM, Logical and Physical Partitions and Importing New Physical Volumes.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Migrated physical Linux servers to Virtual Servers with all set of service configured.
• Implemented day-to-day tasks in Red Hat Linux that include upgrading kernel, HBA driver, configuring SAN Disks, Multipathing, NAS Mount and Unmounts.
• Experienced on migration of VMGuest from one ESX Host to another ESX Host as well as performed storage VMotion.
• Provided support by 24x7 shift rotation basis by on calls.
• Responsible for monitoring Linux server’s performance ensuring security and stability with the help of available UNIX utilities.
• Responsible building and supporting Red hat Linux 5 and 6.
• Configuration and deployment of Nagios Monitoring system for managing all the Linux warehouse systems.
• Worked in HPSM to perform different responsibilities like debugging, troubleshooting issues, error analysis, recovery, documentation, and procedures required for reference.
• Worked with Red Hat Packet Manager (RPM) and YUM.
• Performed User and Group administration.
Environment: Red Hat Enterprise Linux 4.x, 5.x, 6.x, 7.x, Sun Solaris 8, 9, 10, VERITAS Volume Manager, Oracle 11G, Samba, Oracle RAC/ASM, EMC Power path, DELL PowerEdge 6650, HP ProLiant DL 385, 585, 580, Sun Fire v440, Windows 2000/NT, HP, IBM, Solaris, Oracle 8, SSH Gate, Cisco routers/switches, Dell 6400, 1250, Sun E450, E250.
Tata Consultancy Services Limited Oct 2017 – oct 2022
SYSTEM ENGINEER
Karnataka, India
Responsibilities:
SAP HEC (HANA Enterprise Cloud) / MCD (Managed Cloud Delivery project) Level 2 working knowledge on Configuration, Administration of Linux servers
Linux (LVM) Filesystem management
Performed installations and configurations of several applications.
Monitored Client's Environments using EM7.
Built Amazon EC2 Instances using AWS.
Managed Application servers and Web servers for Customers.
Installed and configured SAMBA for clients.
Configured network on new Linux devices.
Troubleshot network issues on various Linux devices using Netstat, tcpdump, Traceroute and Ping.
Applying security patches and OS upgrades
Strong Knowledge on OS security hardening and performance tuning.
Hands on experience on Any of Linux clusters
Experience in Disaster Recovery and planning
Handling NFS and CIFS filesystem issues and fixes.
LINUX OS hands-on experience with configuration experience
Monitor System Performance Parameters using top, netstat, free –g, SAR utilities
File-system management and LVM
Monitoring Disk space Issues, High CPU and Memory usage Issues, using commands du & df.
Backup & Restoration by using tar/rsync/scp commands
Stopping & Starting of application & DB by using automation tools / manually. Package management using rpm and zypper tools
Generating and monitoring SAR reports Configuring SFTP, and creating SFTP users, password and password less authentication
Providing permission, changing ownership for groups, users
Performing activities on production/Non-production servers,Configuring DNS forwarding & reversing
Deployment & Decommission of VMs and physical servers, Configuring and managing NFS, FTP, SFTP & Samba
Creating and managing volumes (NFS volumes from storage server)
Working on customer service requests, Service request and change requests
Migration / Resize / Storage Migration for VMs, IP switching for Failover activities (Primary to HA & DR)
Backup and restore for IAAS VMs
Resolved issues and escalated problems with knowledgeable support and quality service.
Scheduling jobs with help of cronjob schedulers . Start, Stop and check status of Network services and kill the process.
Backup: Perform full & incremental backup of all Linux servers using native tools such as tar, rsync. Configuring and managing the NFS servers.
Scape Solutions, India Feb 2016 – May 2017
Linux Administrator
Performed system Firmware updates, Linux kernel, memory upgrades and along with red hats Linux Kickstart Installation
Involved in Linux backup/restore with tar including formatting and disk partitioning.
Wrote UNIX shell scripts for automated installations, to extract logs using C, Bash, Perl.
Developed automated processes that run daily to check disk usage and perform cleanup of file systems on LINUX environments using shell scripting.
Perform new builds and decommissions of both physical and VMware servers.
Deployed the Java applications into web application servers like Web logic. Responsible for configuring real time backup of web servers.
Deployed Enterprise Application Archive (EAR), Web Application Archive (WAR), and Staging production environments.
Environment: Red Hat Linux (RHEL 4/5), UNIX, Logical Volume Manager, Red Hat Cluster Servers, Oracle, MySQL, Shell scripts, Apache Tomcat, SAN, SUSE.
Education:
Dr. M S Sheshgiri College of Engineering And Tech Karnataka, India. Bachelor of Science: Electrical Engineering
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