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System Administrator Resume

SUMMARY

  • Working since over 12+ years in the field of technological industry as System Administrator and 8+ years’ experience in Virtualization System Design and automated tools like Chef with Linux and Software Configuration/Build/Release Management/Continuous Integration and expertise on version control tools like Subversion, Clear case administration, Managing build and multiple releases.
  • Experience in Chef Automation tool such as bootstrapping, adding chef client configurations (Run list, cookbooks, etc.).
  • Private cloud experience such as PCF, OpenStack and IBM Pure and supporting various system administration activities.
  • Extensive expert level experience in IBM AIX 4.x/5.x/6.x, HACMP 4.x/5.x, VIO Server 1.x, 2.x Hardware Management Console and HP - UX and its associated tools.
  • Administration of 24/7 support of IBM pSeries servers including p4/p5/p6p570/p590/p595/p630/p650/p690 Blade Center pSeries servers.
  • Experience in Virtual I/O (VIO) Shared Ethernet Adapter (SEA), VLAN, NPIV (N port ID virtualization) configuration, virtual SCSI services to multiple VIO client partitions.
  • Installation & Configuration VIO server on Blades, IVM configuration, VLAN tagging configuration, VIO Client profile creating using IVM, BOFM (Open Fabric Manager) configuration .
  • Experience in LPAR/DLPAR Micro Partitioning technology for installing partitions through NIM and Managing partitions through HMC Console.
  • Experience in HACMP 5.X, Power HA/XD environment including planning, installation of clustered environment, creating Resource group, configuration and support.
  • Extensive expertise in Disk storage systems, SAN, IBM SVC & McData Switches Logical Volume Manger and management tools (SDD, MPIO). pSeries System Firmware, SDD/SDDPCM, Fiber adapter Microcode upgrade
  • Extensive experience in network management TCP/IP, NIS, DNS, NFS and VLAN.
  • Extensive experience in Backup Management and Disaster Recovery using Tivoli Storage Manger 4.x/5.x, TSM Sysback & mksysb.
  • GPFS installation and configuration
  • Extensive expertise in Web Sphere Application Server 5.x, 6.x, WebSphere Voice Response Server.
  • Extensive expertise of IBM HTTP and Apache Web server.
  • Experience in TSM includes client installation configuration and verification of incremental/full backup, setup LAN Free backup.
  • Problem solving, Troubleshooting and Performance tuning skills.
  • Experience with SAN devices connectivity and configuration on servers.
  • Experience with Disaster Recovery.
  • Administration of NIS or LDAP environment
  • Experience with automated server provisioning such as Vagrant, Forman and Terra form
  • Experience with Agile/Scrum methodology and continuous integration for quality improvement and cycle time reduction. Duties include Configure new Jenkins jobs, administer and automate nightly builds.
  • Experience in providing support/troubleshooting for Java based applications
  • Experience in build pipeline process and deploying Java applications using CI/ CD Tools Jenkins, Git, Git hub
  • Experience with container based deployments using Docker, working with Docker images, Docker Hub and Docker registries and kubernetes.
  • Hands-on Experience in Jenkins Administration like set-up Security, create Jobs, configure Notifications, Distributed Builds, Install Plugins, Backup, and CLI and Maintained Jenkins masters for different applications supported several quarterly and project releases in parallel.
  • Hands on experience in K Shell and AWK scripting.
  • Experience with log management systems such as Splunk and ELK for various metrics.
  • Experienced in Installing, Configured and management in Ansible Centralized Server and creating the playbooks to support various middleware application servers, and involved in configuring the Ansible tower as a configuration management tool to automate repetitive tasks
  • Expertise in Installed Chef Server Enterprise on the workstation and bootstrapped the nodes using Knife, and involved in writing Chef Cookbooks and recipes to automate the deployment process.
  • Involved in integrating chef cookbooks into Jenkins jobs for CD framework, and worked with various custom resources, created roles & environments and using chef handlers for different auto kickoff requirement jobs.
  • User Interaction, Team player, Project implementation and Excellent Communication.

PROFESSIONAL EXPERIENCE

Confidential

System Administrator

Environment: Jenkins, Chef, Ansible, Gitlab, RHEL, AIX, Solaris, VMware / ESXI, GPFS, PowerHA, HMC, IBM PureApp, SRDF, Zerto, Oracle CRS, Blade logic, Splunk, Storix, HPSM, Serena Business Manager (SBM), Heat, HP Sitecope, IBM ITM and IBM TWS.

Responsibilities:

  • Experience with private cloud such as PCF, OpenStack and IBMPure and supporting various system administration activities.
  • Experience with CHEF automation tool and responsible for managing the workstation, chef server, client nodes and creating cookbooks, recipes using the Gitlab as version control to automate various UNIX tasks.
  • Working knowledge and experience in Ansible which includes Ansible server, playbooks, inventory and Ansible tower to automate repetitive tasks, quickly deploys critical applications, and proactively manage the system changes.
  • Strong experience automating CI/CD pipelines and using technologies like Jenkins, Code Deploy.
  • Strong experience setting up proper infrastructure monitoring & alerting tools such as ELK, Dynatrace and Splunk.
  • Familiar and working with source control management Github / Gitlab.
  • Infrastructure integration including configuration of new and existing systems on multiple platforms, security, operating system administration, software installation, and maintenance and upgrades.
  • Create and maintain policies and technical documentation to ensure efficient planning and execution.
  • Recommend and implement changes to existing hardware and operating system infrastructure including patches, users, file systems and kernel parameters.
  • Diagnose and resolve hardware related server problems (failed disks, network cards, CPU, memory, etc.) and act as escalation point to troubleshoot hardware and operating system problems and suggest possible performance tuning.
  • Work with database and application teams to gather requirements for new projects and expansion to existing applications.
  • Work closely with other technical team members and departments to recommend solutions and resolve priority issues in timely manner.
  • Extensive and end-end experience with RHEL (5/6/7) & AIX (5/6/7) such as installation, administration and support which includes patching, LVM, backup / restore, troubleshooting, performance and other day to day tasks for both virtual and physical servers.
  • PowerVM (VIO) tasks such as Installation, Configuration, support, upgrade and the troubleshooting various issues. Configuring and supporting the NPIV, AMS and LPM for power systems.
  • Installation, configuration and maintaining various admin servers such as NIM, Kickstart and jump servers. OS system upgrade, patching and client system recovery using the admin servers.
  • Hands-on experience with various Cluster technologies such as PowerHA HACMP (5.5/6.1/7.1), GPFS (3.2/3.4/3.5/4.1/4.2 ) and Oracle Clusterware (CRS).
  • Experience in VMware ESXI / Vcenter for various VMs activities such as disk management, vmotion, resource allocation / deallocation, network, vmtool upgrade, troubleshooting and other VM related tasks.
  • Administration and support experience with Storix backup / restore and Zerto replication for Linux VMs.
  • Maintaining and pro-actively remediating the vulnerabilities using the Blade logic (BMC) automation tool for various system patching and for valorous UNIX tasks.
  • Installing, configuring, maintaining enterprise class 7x24 mission critical servers and enhancing infrastructure operation including optimization of operating system and system support software.
  • Developing architecture designs and implement IBM's Advanced POWER Virtualization providing Logical Partitioning (LPAR), Dynamic LPAR (DLPAR), Automated DLPAR using Partition Load Manager (PLM), Micro-partitioning, and Virtual I/O (VIO) enabling on-demand computing and server consolidation.
  • Design, Implement, and maintain multiple p595, p570, p550, p690, p650, p630 servers using HMC (Hardware Management Console).
  • Production Chassis Configuration: IBM Blade Center, Cisco Nexus 4001 Switch, Advance Management Modules for IBM Blade Center, Blade Center Open Fabric Manager configuration.
  • Design and configure Virtual I/O servers with multitier Networks (T1, T2, T3) and multitier SAN.
  • Design and Implement of SEA (Shared Ethernet Adapter) failover on VIO servers.
  • Design and Implement Backup and restore strategy for VIO server and LPAR.
  • Install and configure NIM Master servers and NIM client for remote installation.
  • Diagnosing and resolving systems related tasks in accordance with priorities setup in dealing with trouble tickets.
  • Manage firmware upgrades (Microcode) for p5 and p4 System, Service Processor, Fiber Channel, NIC, SCSI adapters and HMC.
  • Install, configure, and maintain HMC and apply latest fixes or upgrade HMC code.
  • Developing Shell utilities for proactive monitoring, system error handling, and management of SSH user accounts and keys.
  • Installing configuring and managing HACMP V5.2 and V5.3 cluster and PowerHA.
  • Providing AIX, HACMP, PowerHA, HMC, Web Sphere, Web Server, z Linux, Linux, Sun on-call support.
  • Migrating OS from AIX 5.1 to 5.2 & 5.2 to 5.3.
  • Capacity planning & performance tuning.
  • SDD/SDDPCM installation & upgrade.
  • Installing application software like TSM, WebSphere, DB2, MQ Series, HTTP server, Oracle server, Oracle application.
  • On-Call off-shift and weekend coverage and writing procedures for weekend changes
  • Providing Technical Solutions to meet customer's various requirements.
  • Install, configure Oracle 9i 10g and DB2 Database Servers and apply security patches file set and upgrade.

Confidential

Sr. AIX Administrator

Responsibilities:

  • Support of 90+ IBM RS6000s, 24/7 support, Hardware setup and configuration,
  • AIX OS installation/ Migration, System support and Administration of IBM RS/6000/pSeries.
  • Performance monitoring/tuning.
  • NIM server/client setup and Installation.
  • System Backup, restore, Daily security checks, system health check.
  • Problem determination, Troubleshooting and resolution.
  • Strong in AIX Logical Volume Manager, Veritas Volume Manager.
  • Hand-on experience on Clustering (HACMP) environment, LPAR.
  • Third party software installation and upgrades.
  • Supporting Oracle/DB2 Databases Configuration and Performance Tuning on Aix Server.
  • Security management (assigning file/directory permissions).
  • User management (creating users, assigning permissions).
  • File system management (creating JFS file systems, extending file systems).
  • Managing corn jobs, at jobs and batch jobs.
  • File transfer across systems using rcp, scp and ftp.
  • Assigning volumes on ESS for AIX servers for external Volume Groups.
  • Creating V paths, Volume groups, Logical Volumes and File systems on AIX servers, Extending File systems and space management.
  • Monitoring AIX error logs, troubleshooting AIX related problems, Performance monitoring.
  • Monitoring Error Logs of HACMP, Troubleshooting cluster related problem.
  • Customized pre - Events and post-Events scripts as per requirement.
  • Monitoring cluster health by checking logs files.
  • Installation and building TSM Servers. Sizing of TSM database and Recovery Log.
  • Installing and upgrading Atape device drivers and configuring tape drives.

Confidential

Sr system administrator

Responsibilities:

  • 24/7 support, Hardware setup and configuration,
  • AIX OS installation/Migration, System support and Administration of IBM RS/6000/pSeries.
  • Performance monitoring/tuning.
  • NIM server/client setup and Installation.
  • System Backup, restore, Daily security checks, system health check.
  • Problem determination, Troubleshooting and resolution.
  • Strong in AIX Logical Volume Manager, Veritas Volume Manager.
  • Hand-on experience on Clustering (HACMP) environment, LPAR.
  • Third party software installation and upgrades.
  • Supporting Oracle/DB2 Databases Configuration and Performance Tuning on Aix Server.
  • Security management (assigning file/directory permissions).
  • User management (creating users, assigning permissions).
  • File system management (creating JFS file systems, extending file systems).
  • Managing corn jobs, at jobs and batch jobs.
  • Monitoring AIX error logs, troubleshooting AIX related problems, Performance monitoring.
  • Monitoring Error Logs of HACMP, Troubleshooting cluster related problem.
  • Customized pre - Events and post-Events scripts as per requirement.
  • Monitoring cluster health by checking logs files.
  • Installation and building TSM Servers. Sizing of TSM database and Recovery Log.
  • Installing and upgrading Atape device drivers and configuring tape drives.
  • Monitoring Event log and Act log, Trouble shooting TSM client problems using logs. Updating schedules as per the requirement.

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