AIX ADMIN

Professional Summary

A Certified AIX System Administrator with more than 10 years of Professional experience in IBM AIX, HP UNIX, LINUX and SOLARIS environments.

Experienced in heterogeneous server environments including IBM P6-MMA, P520, P550, P561, P575, P590, P630, P650, P670, P S822, PS824IBM RS/6000 F50, IBM Blade server JS20, Sun Enterprise Servers, HP 9000 PA-RISC System, SAN/NAS technology.

Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX

Experience in Installation and Administration of IBM VIO servers, HMC, LPAR

Knowledge of Active Memory Sharing, Active Memory Expansion, Shared Processor partition

Experience working with COMMVAUL backup (simpana)

Experience working with NPIV and VLAN

Installed & configured HACMP4.x/5.x and POWER HA in both Active/Active (Oracle RAC) & Active/Passive modes.

Extensive experience in Linux / UNIX System Administration of Red Hat Linux 4.0, 5.0, 6.0.

Experienced with the installation, configuration and volume/File system management using Logical Volume Manager (LVM).

Experience in creating physical volume, logical volume, volume groups using LVM's in Red Hat Enterprise Linux

Experience in writing scripts in SHELL and PERL

Solid understanding of RPM, building, maintaining, and installing packages.

Experience in providing day-to-day user administration like adding and deleting users and managing users queries

Extensively worked on configuring & administering YUM, RPM’s, NIS, NIS+, NFS, DNS, DHCP, Mail servers.

Expertise in VERITAS Volume Manager, VERITAS Netbackup, RAID, Sun-Cluster, VERITAS Cluster and Shell/Perl scripting

Experience in creating physical volume, logical volume, volume groups using LVM's in Red Hat Enterprise Linux

Experience in Disaster recovery (DR)

Expert in setting up SSH, SCP, FTP, SFTP connectivity between UNIX hosts.

Strong in LVM, Performance monitoring, Error logging, Diagnostics, and Fine-tuning.

Knowledge of network topologies and protocols and problem solving.

Experience in Scheduling tasks using CRON jobs.

Experience with working in Production, Development and Testing environment

Strong change management and documentation skills

Configured the storage disk into multipath and create file system

Install and upgrade new kernel

Enable and set the ACL permission

Perform performance monitoring and related troubleshooting

Enable IP forwarding

Configure SMTP mail server and mail aliases

Decommission the file system Linux servers

Troubleshoot all issues in Linux servers

Skills

Operating systems

IBM AIX 5.1, 5.2, 5.3 and 6.1, 7.1

RedHat/SuSE Linux 4.x, 5.x 6.x, 7.0

MS Windows/NT/XP

Hardware

IBM RS/6000, SP2, p670/680/690(Regatta) series, P7, P8, S85, S80, H80 EMC Symmetrix, Clariion, EMC Celerra, DS4300, F50/40, 3494/3584 ATL Tape Library, IBM 3494, 3583 Automated Tape Library

Languages

C, C++, Shell Scripting, Perl, SQL, PL/SQL, HTML, XML

Database

Oracle 9i/8i,IBM DB2, MS-SQL Server, MS-Access

Tools

HMC, TSM and Veritas Net Backups. VERITAS Volume Manager 3.x/4.x/5.x, VERITAS File System 3.x/4.x/5.x, Solaris Volume Manager / RAID, Solstice Disk suite 4.x

Backup tools

Commvault (Simpana), TSM

Work Experience

Capital One, Plano, TX Apr 2014 – Present

AIX/Linux Administrator

Built VIO servers and client lpars

Working with AIX/Oracle bulk build team

Working with AGILE methodology and SCRUM process

Installed and configured dual VIO servers, Shared Ethernet Adapter SEA and NPIV.

Install and upgrade operating system AIX 6.1 to AIX 7.1

Install and upgraded Hitachi and symmetric disk drivers

Written automatic script (shell script) for server post provisioned

Built more than 400 VIO lpars on P822 and P824 in 4 data centers

Configured and schedule Backups using by simpana

Audit compliance using Nezumi scan

Migrated AIX operating system from 5.3 TL9 to 5.3 TL11 through clone

RPM and YUM package installations, patch and other server management.

Setting up server NIC's (Nic Bonding, IPMP, Link Aggregation).

Configured multiple Resource groups in Power HA environment

Worked with IBM in opening PMR’s and gathered snaps to troubleshoot production issues.

Actively involved in Disaster Recovery testing

Managing cron jobs, batch processing and job scheduling.

Installed and maintained the issues for all Oracle boxes installed on the new servers

Installed Servers using kickstart, jumpstart and network based

Perform user management, group management and device management in Linux

RPM and YUM package installations, patch and other server management

Software and hardware upgrades and routine systems maintenance by installing current Patches and Packages

BNY Mellon, Pittsburgh, PA Dec 2010 – Apr 2014

AIX/Linux Administrator

Installed and upgraded operating system AIX 5.3 to AIX 6.1

Migrated AIX operating system from 5.3 to 6.1 through nim server.

Migrated AIX operating system from 5.3 TL9 to 5.3 TL11 through clone.

Installed and configured dual HMC 7.3, and 7.7

Installed and configured dual VIO servers, Shared Ethernet Adapter SEA and NPIV.

Upgraded the VIO servers to version 2.1.0.

Installed & configured Power HA and VCS cluster

Configured multiple Resource groups in HACMP/VCS environment.

Dynamically allocated and de-allocated CPU, memory, I/O through DLPAR.

Involved in migrating disks from EMC Symmetrix to VMAX.

Installed Configured and upgraded EMC ODM and Power path

Upgraded firmware micro-code level in fibre channel adapters.

Involved in tuning the parameters of Web servers to improve the performance.

Installed NIS, DNS, and mail setup environment as per the client requirement.

Perform BMC install/upgrade in Linux servers

Configured NFS, DHCP, FTP, LDAP and Web servers

Converted EXT3 filesystems into EXT4

Addition and configuration of SAN disks for LVM on Linux, and Veritas Volume Manager and ZFS on Solaris LDOMs.

Scheduled jobs and automating processes using CRON and AT

Package management using RPM, YUM and UP2DATE in Red Hat Linux

Perform eTrust install in Linux servers

Perform HPOV install in Linux servers

Add, modify and delete Master script and RC script on Linux servers

Involve TSM client install/upgrade

Analyzed network behavior, performance and application issues using standard tools like TCPDUMP, NMON, SVMON, and TOPAS.

Installed Servers using kickstart, jumpstart and network based.

Have knowledge of implementing live partition on Power 6 servers.

Experience with working in Production, Development and Testing environment

Worked with IBM in opening PMR’s and gathered snaps to troubleshoot production issues.

Actively involved in Disaster Recovery testing.

Performed day-to-day jobs such as monitoring log files, writing and running the scripts to automatically watch the resources like CPU, memory, I/O, and paging space

Administration of RHEL versions 5, 6 that includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.

Experience with TCP/IP, DNS, DHCP, and networking fundamentals, banners and Nagios monitoring tool.

Experience using VMware/Vsphere virtualization technology

Update Linux Centos server and Ubuntu Linux Desktops, software and settings.

Experience in installation and configuration of VERITAS Cluster Server

Configuration and administration of Fiber card Adapter's and handling of SAN (SAN arrays, HITACHI, EMC) in IBM AIX servers.

Working with Logical Volume Manager and creating of volume groups/logical performed Red Hat Linux Kernel Tuning.

Configured and maintained FTP, DNS, NFS and DHCP servers

Performed automated installations of Operating System using Jumpstart for Solaris and Kickstart for Linux.

Managing systems routine updates, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.

PepsiCo, Plano, TX Aug 2009 – Dec 2010

AIX Administrator

Installed and upgraded AIX operating systems for AIX 4.3.3-5.1/ 5.2, 5.3.

Migrated AIX operating systems from 5.2 to 5.3.

Migrated AIX operating system through clone and NIM server.

Upgraded the Maintenance levels through NIM servers.

Involved with making the documents of HACMP upgrade from HACMP v5.2 to HACMP v5.3

Installed and Configured NIS, NFS and DNS Environments.

Configuration of Logical volume Management LVM and disk management in AIX 5.1, 5.2 and 5.3 versions.

Installation, Configuration & Upgrade of AIX operating systems running oracle Database.

Installation Packages and patches.

Worked with database administrator, Storage Administrator and application team for maintaining /monitoring daily activities.

Provide 24/7 production support.

Managed Physical volumes, Volume Groups, and Logical volumes using Logical Volume Manager

Good Knowledge of NAS and SAN concepts and technology.

Implemented SUDO, SSH and other security tools

Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring

Cadbury Schweppes, Plano, TX Jun 2008 – Aug 2009

AIX Administrator

Installed and managed several p6-series (550, 560, 570, 575) systems which include disk management, core products installation, mirroring rootvg, adding the mirrored disk in the bootlist, installing core products on Test, QA and Production Servers running AIX 5.2 and 5.3.

Activated installed Memory and Processors of the Frame by entering CoD (Capacity On Demand) code.

Adding the disk in the rootvg, mirroring the rootvg and adding the mirrored disk in the bootlist.

Expertise in using performance tuning related tools such as topas, netstat, vmstat and sar.

Configuration and management of print queues and mail systems.

Coordinate with DBAs, end users, developers and vendors.

Document installation procedures, changes required in present environment.

Defined NIM Clients and upgraded OS on them using NIM

Restored servers using Mksysb, lppsource through NIM master

Install and maintained over 500 servers for production and non-prod environments

Extensive experience with LVM,VG, PV,FS creations

Wells Fargo Bank, Minneapolis, MN Feb 2007 – May 2008

AIX Administrator

System Administration of AIX UNIX on P 570 & P 590 on AIX 5.1, 5.2 & 5.3

Migrated AIX operating system through NIM server.

Installation of AIX UNIX BOS 5.1, 5.2 & 5.3

Installing Maintenance Levels and updates

Monitoring of Disk& Memory Utilization on AIX UNIX.

Troubleshooting in AIX Environment 5.1, 5.2 & 5.3 System Performance monitoring.

Creating File systems, mirroring

User management, security planning and implementation.

Backup maintenance through TSM using Tape Libraries and robot with Bar-coded tapes.

Performed configuration and periodic updates on pSeries machines, through applying technology level, fixes and microcode update

Setup and changed hscroot password on HMC

Performed TSM v5.5.1.0 management on client's side

Coordinate with App owners, DBAs, users, developers and vendors to resolve issues.

Performing Failovers in HACMP cluster environment, monitoring servers

Perform User Account management, data backups, and users' logon support

Day-to-Day trouble shooting for the end users on AIX 5.2/5.3 based applications

Creation of groups, adding User ID to a group as a primary or secondary group, removing User ID from a group

Zen Infotech, Hyderabad, India Jun 2005 - Jan 2007

System Admin

Responsible for installation, troubleshooting and maintenance of 45 AIX 4.x/5.1/5.2 servers.

Installing OS AIX 5.3,AIX 5.2 on each Node using NIM

Installed and configured Logical Partitions technology (LPARS).

Responsible in Migrating AIX operating servers.

Administration of IBM RS/6000, RS/6000 SP servers running on AIX5L for support of PeopleSoft Financials and HRMS Environment on Oracle 7.3.x., DNS, FTP and Legato tape backup.

IBM RS/6000 SP System Software Maintenance, AIX System Dump Generation and sending System Dump to AIX System Support Center.

AIX System Administration using SMIT.

Installed, configured, maintained over 150 UNIX servers (AIX-P5-P6 Linux, Redhat and SUSE).

Proactively monitored system performance and recommended solutions.

Worked closely with developers/programmers and Oracle DBA's.

Work with L1/L2 team and provide solutions and process for migration and refresh of old hardware/software in Data Centers

Provided Hardware & Software Maintenance of AIX P690 & P595 servers

Created and maintained documentation for administrators and users

Education

Master of Computer Applications 2004, India

Osmania University, India

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