Description
Summary: * Over 7+ years of specialized experience in Linux and UNIX Administration. Installing, configuring, administrating, troubleshooting, tuning, security, backup, recovery and upgrades of IBM AIX and Linux (Red Hat & SuSE) in a very large environment. * UNIX and Linux systems and networking technologies including VPN, IPsec, DNS, TCP/IP, SSL, DHCP and Load Balancing. * Partitioning and configuring with HMC. * Experienced in all aspects of AIX System Administration and support for all server's OS installation and upgrade, OS problem resolution, application of OS fixes, installation of application software, administration of user accounts, system configuration, troubleshooting, system monitoring, system tuning, security updates, hardware maintenance, disk usage maintenance, etc. * In depth knowledge in server buildouts and cloning. * Configured and migrated virtual machines on VMware and PowerVM from one host to other. Also worked on VMware virtualization platform. * Proficiency with configuration and maintenance of NFS, DNS, NIS/NIS+, DHCP, SMTP * Good knowledge in IBM AIX hardware components (RS/6000, pSeries), trouble-shooting and maintenance of PC's. And installation of WebSphere on AIX server. * Deployment, Scripting and Automation: Shell scripting, Python, Ruby, PHP PERL. * Installation and configuration of VIO Server and clients with AIX 5.3-7.1 on client PSeries hardware. * Managed and configured PowerHA/HACMP and High Availability clusters on AIX and Linux. * Experience in monitoring the availability & performance of AIX Servers through tools like vmstat, netstat, and iostat. * Experienced in installation, support, configuration, performance tuning, troubleshooting, maintenance of Red hat Linux and Solaris using Kick start, Custom Jumpstart Server and Interactive installation. And involved in installation, configuration, and administration of RHEL 5x/6.x/7.x servers and Migrating AIX OS from 5.1 to 5.2, 5.3, 6.1 and 7.1. * Expertise in migration from HACMP V4.4 to HACMP V4.5 and migrations of data center and experienced in Installation, configuration, maintenance and troubleshooting of HACMP 4.5 on AIX 5. Skilled at IBM-AIX kernel Tuning, Performance Analysis and Load Balancing. * Configuration management including the building of LPARs and configuring the client hardware devices. * Everyday Network administration tasks - adding and removing users file and share permissions, trust management, replication management, server backups, and server setups. * Proven ability to define System requirements, recommended solutions, analyze capacity and make appropriate modifications. * Providing onsite and remote support for Linux and AIX Server's. * Excellent team worker and ability to quickly adopt and work under minimal supervision, providing 24x7 on call server support. Experienced with Shared Ethernet adapter (SEA) technologies and break fix of issues related to SEA's. * Good working knowledge in GPFS Cluster (3.5V) administration and maintenance. * Migrated Power HA from 5.x to 6.1 using diff. methods to reduce the downtime to the application. * Configured IBM P-series 770, 750, 595, 570,550 and RS/6000 machines for production and test environments. * Planning the major patch releases by coordinating with the application team for the proper implementation of security patches within the environments. * Involved in hardware migration of servers from p5 to p6 to p7 and finally to Power 8. * Developed and implemented the shell scripting for taking Mksysb and push to the centralized NIM server. * Involved in migration of Physical to virtual servers (P2V) and virtual to virtual servers (V2V). * VIO Server operations, creating virtual adapters and configuring Ethernet or LUNs to LPAR's and performing other troubleshooting techniques. Creating ether channel with link aggregation etc. 2. DevOps/Linux Engineer
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