Manager Management

Santosh

************@*****.***

Professional Summary

•Over 7 years of IT industry experience as AIX/Linux System Administrator and Production Support of various applications on IBM AIX, Red Hat Enterprise Linux, UNIX, Solaris, Cent OS and HP-UX.

•Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of IBM AIX, Linux (RedHat & SuSE), Solaris 2.x, 8, 9, 10, HP-UX 10.x, 11.x, Win NT/2000 Server.

•Worked on Linux server virtualization by creating Linux VMs for server consolidations.

•Experience in Linux LVM (Logical Volume Manager) for extending Linux partitions on demand.

•Experience in Installing, upgrading and configuring Red Hat Linux 5.x, 6.x and 7.x using Kickstart Servers.

•Experience with IBM Power4, 5, 6, 7 virtualization

•Experience in Planning and Implementation of Virtualization on Power 770

•Expertise to server utilization and sharing I/O resources to reduce total cost of ownership and make better use of IT assets using Power VM (Advanced Power Virtualization).

•Experience in MICRO-PARTITIONING on P series servers.

•Experience in Installation, administration and configuration of VIO Server and VIO client LPAR'S through HMC.

•Experience in performing DLPAR on VIO servers.

•Performed a rolling migration from Power HA System Mirror 6.1 to Power HA System Mirror 7.1

•Power HA System Mirror cluster maintenance and installation-time cluster settings.

•Troubleshoot and Trouble Analysis of system issues

•Determine issues and resolutions for Systems and Servers installed.

•Experience in Migration of HACMP 4.3.1/4.5/5.1 to HACMP 5.4 using Node-by-Node migration without changing the cluster setup.

•Experienced in configuring and supporting Logical Partitions/Micro Partitions (LPAR/DLPAR), via HMC (Hardware Management Console).

•Worked on Data-Center operation and maintenance across UNIX and LINUX platforms.

•Experience in creating and managing user accounts, security, disk space and process monitoring in Red Hat Linux.

•Experience in writing shell scripts to automate the administrative tasks and management using cron and daemons.

•Configured Linux servers to use Linux cloud for databases.

•Developed customer required applications using shell scripts for easy monitoring of Linux servers.

•Experience in creating CRON jobs to automate various system administration tasks using Crontab Utility

•Strong scripting knowledge (Perl, ksh, bash) to perform administration and automation tasks.

•Experienced in increasing the file system, create Mirroring, striping and parity using VERITAS volume manager (VxVM).

•Skilled at IBM-AIX kernel Tuning, Performance Analysis and Load Balancing.

•Installation of web sphere on AIX server.

•Installed VERITAS Cluster Server on Solaris, with Oracle agent.

•Backup and restoration process in Solaris.

•Experienced in implementing the workload Management (WLM) using cloning and clustering.

•Experience in monitoring the availability & performance of AIX Servers through tools like vmstat, netstat, vmstat and iostat.

•Experience in client /server based ERP solutions.

•Migrating AIX OS from 5.1 to 5.2, 5.3 on 520, 550, 610,RS/6000

•Expertise in migration from HACMP V4.4 to HACMP V4.5 and migrations of data center

•Experienced in Installation, configuration, maintenance and troubleshooting of HACMP 4.5 on AIX 5

•Peripheral Experience in EMC Storage Arrays, ADIC tape libraries, VERITAS Net backup.

•Experience in connecting to an EMC disk subsystem with Power Path and MPIO.

•Well Versed in Installing, Configuring and Trouble-Shooting Application Servers like IBM Web sphere 3.5/4.0/5.0, BEA Web logic and Web Servers like IBM HTTP Web Server, iPlanet Web Server, Apache Web Server on, AIX and Windows 9X/200X.

•Configuration management including the building of LPARs and configuring the hardware devices that support them.

•Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, FTP, remote access, security management and Security trouble shooting skills.

•Experienced in configuring SSH, DNS, NIS, NFS, LDAP, send mail, ftp.

•Excellent presentation, analytical, documentation and interpersonal communication skills.

•Worked 24X7 and on-call in production support and trouble shooting on AIX pSeries servers.

•Everyday Network administration tasks - adding and removing users file and share permissions, trust management, replication management, server backups, and server setups.

•Performed user tasks including submitting and managing parallel, serial and interactive jobs.

•Proven ability to define System requirements, recommended solutions, analyze capacity and make appropriate modifications

•Excellent team worker and ability to quickly adopt and work under minimal supervision.

Education

Bachelor in Computer Science from Jawaharlal Nehru Technological University.

Technical Skills

Platforms

AIX 5, 6.1 & & 7.1, Red Hat Enterprise Linux 4/5/6/7, CentOS 5/6/7, Ubuntu, X86/X64 platforms, Windows 2003, 2008, Server, Win 7, Oracle Enterprise Linux.

Languages

BASH, PYTHON, Perl and Shell

Hardware

IBM p-series p870, p770, p750, p620, p630, p650, p690, p5-series p570, p575, p590 RS600043p, 44p servers/workstations. EMC SAN Clarion Symmetrix, VMAX, FAST R820, R520, R620, HP Blade Servers, Sun Fire 4500, V480, Backup Devices such as tape library and tape drives.

Databases

Microsoft SQL server 2008/2012, MySQL server, Oracle 9i/10g/11g.

Web & Application Servers

DNS, Weblogic, JBOSS, WebSphere.

Virtualization

VMware, Virtual Box, XEN, KVM, VSphere Client.

Protocols

TCP/UDP, IPv4, IPv6, SSH, DHCP, DNS, NFS, CISCO Switches/Routers/Access Points.

Cluster

Red hat Cluster, VERITAS Cluster.

Professional Experience

AIX/Linux System Administrator Jan 2015 to Present

First Data Corp – Omaha, NE

Responsibilities:

•Responsible for installation, configuration, upgrade, troubleshooting and maintenance of RHEL 5/6, AIX 5.3/6.1/7.1, VIOS on pSeries systems OS Security Patches and Additional Setup and configured TCP/IP network on LINUX and AIX.

•Worked with implementation team of high availability cluster on IBM RS/6000 platform (HACMP for AIX)

•Creating LPARS and configuration of DLPAR scripts for load sharing

•Handling the day-to-day Operations, install software, apply patches, manage file systems, monitoring performance and troubleshoot alerts.

•Adding physical volumes, creation Volume groups, File systems, Storage allocation, cron jobs, maintenance levels upgrades and applied Fixes for AIX 5.x

•Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands

•Managed Solaris platform equipment installation and maintenance. Installed LC dual port HBA's, memory, quad interface cards, 10 Gig fiber NIC cards, SCSI adapter and to include upgrades of server firmware and Emulex drivers.

•Worked in the migration team for migration from AIX p5 to p6 & p7.

•Troubleshooting the POWER HA and increasing the file system in HACMP/POWER HA cluster.

•Hardware replacement of cluster nodes without any downtime.

•Configured IBM P-series 770, 750, 595, 570,550 and RS/6000 machines for production and test environments.

•Blade server’s Virtualization-Manage, build and configure the VIOS and LPAR’s on Blade servers and p-series. Creation and installation of new VIOS and LPAR’s using HMC.

•Planning the major patch releases by coordinating with the application team for the proper implementation of security patches within the environments.

•Used configuration management tools such as Puppet and satellite.

•Worked on customer SLAs to meet the required expectations on Linux servers.

•Managing Red Hat Cluster, HPC environment etc.

•Served as NSD consultant assigned to National Service Delivery Data Implementation Team (NSDDI). Assigned 2 projects and implemented the build of Solaris 9 OS platform servers based on design and engineering documentation.

•Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.

•Allocating and Managing disk space for Development Servers depend on their requirement.

•Handling LVM related tasks, Creating, resizing LVM, VERITAS Volume manager and also managing Cluster environment using VERITAS Cluster suite.

•Installing and configuring Red Hat Linux locally or over network.

•Individual contributor to team's quota (HPE FY14 101%, FY15 116%, FY16 full year attainment, 82% (1st half under SYMC/2nd half under VERITAS (219% attainment post quota adjustment)

•Coordinated support efforts between Symantec and VERITAS ensuring resolution of security/storage related issue for USAA, establishing improved organizational cross communication while gaining client loyalty.

•Working as a Cloud Storage SME for Hitachi Data Systems along with additional requirements such on Architecture, Technical Consulting and Operational Support for Storage Performance as it relates to the OS.

•Troubleshooting OS / Hardware related issues and monitor server health on a day-to-day basis. Maintained maximum uptime and high performance for Enterprise Production, Development, and QA environment servers.

•Configured network infrastructure using VLAN and load balancers.

•User Administration (setup and maintaining accounts).

•Monitoring system performance, Server load and bandwidth issues using Nagios.

•Monitoring Hadoop Servers services like HDFS, Job tracker, Impala, HIVE through Nagios Monitoring tool.

•Work with DBAs on installation of DB, restoration and performance tuning and coordinating with Database team in order to provide the necessary requirement.

Environment: IBM P-series 770, 750, 595, 570,550 and RS 6000, VIO, VMware, HACMP, Centos 5.7/6, Red Hat Linux 5/6/7, Amazon Web Services (AWS), Oracle 10g/11g, Oracle Enterprise Linux, SAN, SAP, SVC.

AIX/LINUX Administrator Aug 2013 to Dec 2014

Northwestern Mutual, Milwaukee, WI

Responsibilities:

•Working and supporting the environment which consists of AIX, Linux servers.

•Experience with installation, configuration, upgrade and administration of IBM PSeries and power5/power6/power7 servers on various levels of operating system utilizing environment.

•Worked on reliability, manage liability and performance improvements for Linux enterprises.

•Installed and configured AIX on p5, p6 and p7 550,570,630,640, 520,610,590,595, 770, 795 Blade center JS20/JS21/JS22/JS23 for development, test, production and DR environment.

•Installation, administration of VIO Server and VIO client LPAR's.

•Installation and configuration of LPAR's with AIX 7.1, 6.1, AIX 5.3 on p5 and p6 frames.

•Installation of Linux OS by using kickstart on DL G5 385 boxes.

•Installation of Red Hat Enterprise Linux 6.3 and 5.8, ESXI 5.0 servers through manual and auto build process.

•Installation of Solaris 10 operating system using Jumpstart method and configuring the boxes with respective Tier 2 & Tier 3 as per company Standards.

•Initial post installation procedures for UNIX through internal script.

•Installation, administration of VIO Server and VIO client LPAR's.

•Upgrading VIO version from 1.4 to 1.5 and 1.4.1.2-FP-9.2 to 2.1.

•Experience in installation and configuration of VERITAS Cluster Server.

•Experience working Red Hat GFS and VERITAS Cluster File systems.

•Good Experience on troubleshooting GPFS File system Clusters

•Clustering solutions for High Availability using tools such as VERITAS Cluster Server (VCS), MSCS, RHCS.

•Designed, installed and configured HACMP cluster environment, with cascading and mutual takeover.

•Responsible in Paining building and testing of servers

•Responsible in documenting procedures to be followed by help desk and other system administrators.

•Configuring and implementing DHCP, DNS, SAMBA installation and configuration on different Platforms in heterogeneous Network environment.

•Proficient in Networking and configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.

•User, Group management for all the UNIX servers and also used on Linux.

• Configuring SUDO and granting root permission to Backup Admins/DBAs to perform root related activities.

•Create / Change passwords for users needing access to servers for specific uses.

•Creating and modifying Standing Operating procedures for the team.

•Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration.

•Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell scripts.

•Installed and configured JBoss application server.

•Configured Linux Kickstart on multiple servers for network installation.

•Modify kernel parameters and system settings prior handing it over to appropriate teams.

•Troubleshoot and work with appropriate teams for HP / DELL hardware for network/storage issues.

•Prepared technical documentation for all set up and configuration steps.

Environment: AIX 5.3, Redhat Linux 5x,6x, VMware ESX5x, Oracle 11gR2 RAC, Oracle 9i/10g, IBM Tivoli Access Manager for e-business 5.1, IBM Http Server 1.3.28.1/2.0.47.1/6.0, Java J2EE.

AIX/UNIX Administrator Aug 2011 to Feb 2013

Adept Solutions, India

Responsibilities:

•Experience with installation, configuration, upgrade and administration of IBM PSeries and power5/power6/power7 servers on various levels of operating system utilizing environment.

•Worked on reliability, manage liability and performance improvements for Linux enterprises.

•Responsible for NIM installation, setting up NIM servers, clients, define the resources, mksysb with NIM.

•Performing AIX 5.3 / 6.1/7.1 installation using NIM server.

•Configured network infrastructure using VLAN and load balancers.

•Responsible for OS Migration from AIX 6.1to AIX 7.1.

•Used configuration management tools such as Puppet and satellite.

•Responsible for migrating VIOS 2.1.0 to 2.2.1.

•Built over 80+ LPARS in virtualized environment.

•Upgrade of managed machine and device's firmware/microcode.

•Supporting and managing IBM PSeries servers (P5/P6) using HMC version 6 and 7.

•Migrated and supported file systems from VMAX to VNX storage.

•Application supporting ftp ids creation on regular basis.

•Work experience on WAS servers.

•Work experience with Informatica and ETL application servers.

•Installing and upgrading and configuring Red Hat Linux.

•Experience in Installation, Configuration and Troubleshooting of Tivoli Storage Manager (TSM).

•Working on GPFS file systems of Linux servers and HACMP cluster servers.

•Assisted in the design of the test lab, developing test plans, assisting with the technology side of OS remediation planning.

•Installation and configuration of dual Virtual I/O servers (VIOS) and clients.

•Hands on experience with Advance virtualization and power 7 partition mobility feature.

•Coordinating with application teams to schedule Linux maintenance.

•Participating in weekly change control meeting to present AIX production change.

•Utilized IBM online to work on Change Request, Service Request, Problem Management and problem tickets.

•Performing key role in disaster recovery exercises by new LPARS creations, mksysb setup, adapters configuration, failover testing of HACMP.

•Maintaining and creating Scripts Using Shell for automating Various System Processes Supported AIX servers which hosted Informatica and ETL applications.

•Interactively working with all cross-functional groups including Engineering, QA and Services Teams.

Environment: IBM RS/6000 –p5-550, p5-590, p5-595.M4000, M5000, T5220, T5240, O/S: IBM AIX 5.2 / 5.3.

AIX System Administrator Apr 2009 to Jul 2011

Sun Vision Technologies, INDIA

Responsibilities:

•Installed and managed several IBM RS/6000 AIX systems which include disk management, user management, network management, performance management, test and development projects running on AIX 4.x.

•Design, implement, and maintain AIX solutions for Tier I applications, including multiple udb database servers

•Involvement in all major projects to recommend, design, and implement backup solution Involvement in all major projects to recommend, design, and implement storage solution

•Software and Hardware upgrades of AIX systems installed and worked on various Volume managers.

•Maintenance of the WebSphere servers on different UNIX platforms and setting up the development and testing and staging environment for the ongoing application development.

•Installed and configured Oracle 7.3.2 DB server on AIX 3.2 and implemented support for Forms 3.0 from an earlier release of Oracle.

•Implemented corporate E-mail network using Send mail on AIX

•Installed and Configured McAfee Anti Virus on all NT / Exchange servers.

•Installation of the computer systems (Servers and supporting systems) and related Operating systems AIX/Red Hat Linux/Windows 98, NT.

•Administered, supported and monitored the company’s Web applications using Apache Web server.

•Scheduling Backup and Restoration using ‘ufsdump’, ‘tar’, ‘ufsrestore’ and VERITAS Net Backup.

•Network trouble-shooting using 'ndd', 'traceroute', 'netstat', 'ping', 'ifconfig' and 'snoop' etc.

•Configuration of DNS, APACHE, MAIL, DHCP, FTP servers in Linux.

•Installing Microsoft SQL server as database, Configuration of Logon Authentication server and Proxy server.

•System & backup management using IBM ADSM Backup Server

•Troubleshooting of 33kpbs and 56kbps Modems, Logon Authentication Problems and Customer problems, coordinating the Customer Support.

Environment: IBM RS/6000 –p5-550, p5-590, p5-595.M4000, M5000, T5220, T5240, O/S: IBM AIX 5.2 / 5.3.

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