SUMMARY:

• Over 6 years of cognitive experience in technical support and maintenance of UNIX Systems.
• Experience in Administration of AIX 5.1, 5.3, 6.1 7.1
• Experience in installing, configuring, managing, maintaining and developing AIX Systems
• Experience in Installing, upgrading and configuring HP-UX,RedHat Linux 3.x, 4.x, 5.x and 6.x using Kickstart Servers, puppet, cfengine, and Interactive Installation centOS.
• System administration and operational support on Red Hat Enterprise Linux, VMware ESX/ESXi/RHEL KVM .
• Experience in Red Hat Cluster HA ,Logical Volume Management LVM and RAID in Linux.
• Experience in Installing, upgrading and configuring SUN Solaris 2.6, 7, 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
• Installed SEA, SGA and Fusion
• Installed IBM system director
• Expertise in creating scripts with Korn, Perl which would help in automation and simplification of jobs.
• Installation and configuration of NIM master server and clients
• Migration of AIX OS from 5.3 to 6.1 6.1 to 7.1 on pSeries servers.
• Migration of AIX Systems from p5 to p6 and p6 to p7 hardware.
• Experience working on P550 P595, P570, P575 P720, P740 750 and 770.
• Experience in working with Live Partition Mobility to perform migration from one frame to another.
• Configuring I/O drivers for Power 720 and Power 740 servers.
• Racking and Stacking of PSeries and Blade Servers.
• Installing PowerVm on P520, P720 and P740 boxes.
• Setting up Dual Vio on Power 740 Boxes.
• Installing Aix and Linux Servers on PowerVM Envoirnment.
• Experience of installing and upgrading HACMP and configuring cluster with different RG
• Configuration of HACMP 5.1,5.2, 5.4,5.5,6.1 as well as performing failover and failback of HACMP Clusters on a regular basis as per the application requirement.
• Experience in Migration of HACMP 4.3/4.5 to 5.1 and 5.1 to 5.2, 5.3,5.4 using Node-by-Node migration without changing the cluster setup.
• Installation, administration and configuration of VIO Server and VIO client LPAR'S through HMC.
• Experience in performing DLPAR on servers.
• Experience in working with Shared Ethernet Adapter, Link Aggregation and NPIV concepts associated with VIO server technology.
• Experience with LVM, NIM, User System Resource Management, Job Scheduling and Paging Space Management.
• Experience in creating CRON jobs to automate various system administration tasks using Crontab Utility
• Experienced and familiar with tools like SMIT, configured public network with mktcpip and backup network with smitty chinet
• Installing new software on AIX 5.1/5.3/6.1 Boxes, Upgrading the Maintenance Levels as per application requirement
• Experienced in monitoring system performance and check the status of the system using utilities such as TOPAS, NMON, VMSTAT, IOSTAT, etc.
• Peripheral Experience in EMC Storage Arrays, ADIC tape libraries, Veritas Netbackup.
• Experienced in configuring SSH, DNS, NIS, NFS, LDAP, sendmail, ftp.
• Performance and fine-tuning, Applying patches and fixes.
• Debugging of the application problems in deployment time, runtime and in load test.
• Installed, configured and supported Web Sphere Application Server, IBM HTTP/ Apache Web Servers in AIX and Linux environments.
• Strong scripting knowledge Perl, ksh, bash to perform administration and automation tasks
• Worked 24X7 and on-call in production support and trouble shooting on AIX pSeries servers.
• Strong desire to learn and work with multiple applications, tools and technologies.
• Good communication skills well versed with group work
• Excellent analytical and troubleshooting skills flexibility ability to plan and organize responsiveness and creativity.

TECHNICAL EXPERTISE:

WORK EXPERIENCE

Confidential

Unix/Aix Administrator

Responsibilities:

• Responsible for Installation, Configuration, Support and troubleshooting existing systems in AIX/LINUX operating environment.
• Implemented, administrated, and troubleshooting both Physical and Virtual VMware and Aix
• Migrating Windows Servers from DMX SAN to Linux Redhat
• Installing application software on AIX 5.3 / 6.1/7.1 Boxes, Upgrading the Maintenance Levels as per application requirement
• Installed and debug Operating Systems software and software patches
• Supported all areas of AIX operating system including installing, LVM, Virtualization, configuring TCPIP, rebuilding the system, restoring from backup tape, monitoring the performance of the AIX machine, reading system dumps, PerfPMR and Snap Data.
• Upgrade Hardware Management Console HMC firmware and software
• Implemented and managed resources in VIO server for client Lpar's

Confidential

AIX Administrator

Responsibilities:

• Experience in installation,configuration, maintenance, design, development, implementation, and support on IBM AIX 5.1/5.2/5.3/6.1./7.1
• Performed migration of AIX 6.1 to 7.1 using alt disk migration method
• Worked in the migration team for migration from AIX 5.3 to 6.1 or 5.3 to 7.1
• Experience in designing/building/configuring documentation related to Red Hat Enterprise Linux via Kick start/PXE
• Proficient in providing support on the deployed Red Hat Enterprise Linux servers from both Operating system level and Application level.
• Installing of software packages using RPMs YUM
• Experience in Upgrading Firmware, downloading Patches and installing to keep system in current maintenance level
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager LVM commands.
• Experience in the building LPAR and making them VIO Servers and VIO clients as per requirement and Mapping of the VIO servers and VIO clients for the virtualization of adapters, memory etc.
• Creating LPARS and configuration of DLPAR scripts for load sharing
• Implementation of HACMP/Power HA, failover fallback testing of the resource groups.
• Installation, Planning and resource group creation for HACMP 5.3/5.4/6.1
• Quality Check QA for the newly built servers for the performance, consistency, connectivity with the master server Tivoli automated backups.
• Worked with storage team regarding LUN allocations and Backup Planning.
• Working closely with the Operations, Applications and Infrastructure Teams to maintain a stable environment and developed project plans and updating project statuses.
• Managing problem ticket service request queues, responding to Tivoli monitoring alerts, executed change controls, routine preventative maintenance, performance tuning, emergency troubleshooting incident support.
• Expertise in Disaster Recovery procedures, troubleshooting any problems with infrastructure, systems, servers, peripheral hardware and operating systems
• Hands on experience in Configuration of multiple logical subsystems utilizing IBM HMC with LPAR configuration, NIM to install and manage LPAR, Virtualization on IBM P5 systems.
• Remotely access of the File Systems on the NFS Client through NFS Server
• Worked on TCP/IP configuration, IP address assigning, network interface configuration, static route creation, assigning gateway for two different networks, host name resolution, changing IP address.
• Maintenance and trouble shooting of NFS Network File System
• Troubleshooting of the system boot errors, installation errors and related to the TCP/IP problems.
• Experience in studying the kernel performance issues using various utilities like topas, vmstat, svmon and iostat.
• Disk Replacement Strategy on AIX
• Responsible for backing up the system image mksysb and restoring them during the system recovery process.
• Software installation and maintenance includes SAP, Oracle DB2
• Extensively worked with EMC to run GRAB scripts and worked on the Remediation reports posted by EMC and the configuring SAN on the servers after the EMC allocates the SAN.
• Expert in using Maximo Remedy Change management Systems
• Experience in installing, configuring and administering UNIX utilities such as Samba and SUDO.
• Quick learner and team player with strong analytical, trouble-shooting and communication skills.
• Provided 24X7 supports on call rotation basis.

Environment:AIX OS 5.1, 5.2, 5.3,6.1,7.1 running on IBM pSeries p570, 575,595,720,740,795 , Advance Power Virtualization, set up dual VIO servers, SEA failover network, MPIO in the client with SAN in VIOS,NIM, HACMP,SAN EMC Symmetrix or CLARiiON disks ,Databases Oracle10g, DB2 ,WebSphere Tivoli Storage Manager Apache web server Samba SSH,Networking TCP/IP Networking, 10/100/1000BaseT, Cisco router cabling and testing ,Linux Red Hat, SuSE

Confidential

AIX System Administrator

Responsibilities

• AIX 5x and 6x installation, upgrading, migration and troubleshooting.
• Upgrading firmware of managed machines, devices and HMC.
• Lead datacenter migration in large midrange environment.
• Coordinated application team to Upgrade AIX 5.1 to 5.3 and AIX 5.3 to 6.1
• Extensive experience in micro Partitioning and LPAR, DLPAR .
• Built VIO SERVER and VIO clients on P7 750, 770 server
• Extensively used LVM - created VGs, LVs disk mirroring for IBM p-series servers
• Coordinating with application teams to schedule AIX maintenance on QA/DEV
• Participating in weekly change control meeting QRB to present AIX production change.
• Experience with SAN storage migration from IBM DS8300 to DS8800.
• Installation and configuration of VIO Server with AIX 5.3 and Aix 6.1 on VIO client LPAR's on pseries 520, 550, 570 and p595 models uing HMC
• Configuration management including the building of LPARs using HMC, LVM and configuring the hardware devices that support them.
• Built power HA 5.5 and 6.1 clusters running critical SAP applications.
• Assigned the storage to servers using NPIVs Virtual Fiber Channel
• Expertise in creating and managing Dual Virtual I/O servers with SEA, MPIO and LNK aggregation
• Upgrade of AIX TL and SP to latest level using NFS mount and alt disk
• Created and configured dynamic VIO LPARs on p5/P6 520, p5/P6-550, p5/P6-570 and p5/P6-595.
• Configured the HACMP clusters to keep the high availability applications running on IBM pSeries.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
• Responsible for NIM installation, setting up NIM servers, clients, define the resources, Alternate Disk Migration with NIM
• Provided support for other UNIX based applications and servers on an as needed basis.
• Active involvement in monitoring server performance, network traffic to reduce performance bottleneck
• Performed capacity analysis, monitored and controlled disk space usage on systems
• Involved in implementation of EMC Power path for load balancing and redundancy in data path.
• Configured NIM, NFS and NIS and standardization of all the systems.
• Activities include user administration startup and shutdown scripts crontabs, filesystem maintenance and backup scripting and automation.
• Administration responsibilities include user, group, disk, printer and security management, File sharing Permissions.
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• System Backup management using IBM TSM Backup Server and using Tape libraries.
• Installed and configured IBM Tivoli Network Storage Manager TSM client Server software backup and recovery solutions
• Performance Management Tuning of AIX /UNIX Kernel.
• Configuration and Administration of DNS, NFS, DHCP, FTP, Samba Servers and clients. Security layers like SSL, SSH, HTTPS, SFTP.
• Responsible for migrating and decommissioning of the system Creating Disk groups and volumes, plexes using VERITAS Volume Manager 5.0, Managing disks and file systems using VERITAS Volume Manager 5.0
• Creating UNIX file system, VERITAS File System and configuring VG's and LV's using LVM.
• Worked extensively on HA/ Disk Volume Management with VERITAS Volume Manager/ SVM VCS
• Updated documentation of all the Servers and the installed applications and patches.
• Assisted other Unix administrators when help was needed i.e., creating UNIX accounts, writing scripts to perform system administrator functions, responding to trouble tickets, etc .

Environment : IBM AIX v5.1, v5.2, v5.3, v6.1 , p6-570 and p5-570, p5-561, p5-560, p5-55A, p5-505, p-650, p-630, p-620, p-610 servers, LPAR, DLPAR, Virtual I/O, Multiple HMC WebSM, , NIM, KORN Shells, Storix 6.1, TSM, SAP, NetApp, Shark and Orcale, DB2Tivoli Workload Scheduler TWS , Tivoli Enterprise Console TEC , Tivoli Storage Manager TSM , Lotus Notes, Oracle/DB2, and SAP

Confidential

UNIX/AIX/Linux Systems Administrator

Responsibilities:

• Responsible for Installation, Configuration Management, Maintenance and Systems Development of AIX Systems.
• Installation, Administration and troubleshooting of AIX 5.3/5.2 running on IBM pSeries 570, 590, 595 and Standalone RS6000 Servers.
• Extensively worked and involved in capacity planning discussions.
• Used NMON tool for presenting all the important performance tuning information on one screen and dynamically updating it.
• Installed and Configured IBM WebSphere Application Server 7.0.X on AIX 5.3 and windows servers.
• Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment.
• Configured and supported Logical Partitions/Micro Partitions LPAR/DLPAR , via HMC Hardware Management Console .
• Installation configuration and testing of VIO Server with AIX 5.3 on client LPAR's on 550 and 570 models.
• Assembled and deployed EAR, JAR WAR files on Websphere Application Server and did performance monitoring.
• Assigned Data Collection Levels for the started and stopped resources such as JVM, EJB's, WLM, and Deployment Manager.
• Installed, configured, administered and supported Web Sphere Application Server 7.0/6.0/5.0.
• Maintenance of the WebSphere Application Servers on different UNIX AIX and SOLARIS and LINUX platforms and setting up the development and testing and staging environment for the ongoing application development.
• Debugging of the application problems in deployment time, runtime and in load test.
• Installed and maintained Energy IP, NMS, ORS applications on AIX 5.3 Smart Connect Project .
• Coordinated with Tivoli Access Manager and Tivoli Identity Manager team IDM and implemented Single Sign On MDMS application.
• Provided support to 1600 Aix servers.
• Installed VIO server Advanced POWER Virtualization on IBM P5 System. Assigned resources by making LPAR client of VIO server.
• Lead from the front in implementations including preparing implementation and back-out plans, organizing application owner meetings, educating them about the downtimes and implementation plans.
• Responsible for NIM installation, setting up NIM servers, clients, define the resources, Alternate Disk Migration with NIM.
• Installed AIX 5.3 on each client LPAR VIOC on the disks which were virtually assigned to Client LPARs.
• Upgraded server memory from 24GB to 48GB and allocated to all the LPARS as per client requirement.
• Worked with HDS, EMC and IBM SAN Storage.
• Responsible for testing application and fixing bugs in Linux VMware, including setting up/installing the backend Debian and SUSE Linux servers and performing the configuration.
• Advised on best practices and spearheaded an upgrade project from older linux distributions to CentOS/RHEL 5.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage. And VERITAS Cluster.
• Responsible for setting up the development, system test, performance test and pre-production environments for the ongoing application development.
• Worked on troubleshooting Java applications using logs, traces.
• Administering Novell SuSE Linux super computer cluster and storage.
• Installed fixpacks and interfixes by configuring properties file and running update Silent wizard.
• Performance tuning by configuring JVM arguments, JDBC connection pooling caching.
• Performance tuning by pointing the applications to the different available servers.
• Coordinated with Oracle DBA's for performance tuning of DB/Sys.
• Coordinated with Oracle DBA for problem resolution and recommendations.
• Worked closely with DBAs to install raid, disk areas for Oracle database instance installations, created Bourne shell database startup and shutdown scripts for UNIX servers. Wrote shell scripts for automated installations, to extract logs.

Environment: AIX, VIO, LPAR, Solaris, Linux, Windows 2000, Oracle 10G, TSM, IBM HTTP Server, IBM BladeCenter, Apache Web Server, WebSphere Application Server, Korn Script, SAN ESS Shark storage, NMON, Siebel.