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Unix System Administrator Resume

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SUMMARY

  • Over 15 years of IT experience.
  • Over 7 years of experience in UNIX Administration in AIX, HPUX, SOLARIS and LINUX.
  • Specialized in IBM Power4/Power5/Power6, Virtualization, HMC and NIM .
  • 5 years of experience in HP PA-RISC/ITANIUM, SUN SPARC/INTEL/AMD Processors.
  • 3 years of experience with Hitachi Storage Devices.
  • Strong knowledge of TCP/IP, Networking, Ethernet, LAN, WAN.
  • Strong hands on experience on UNIX Shell scripting, C/C++, UNIX IPCs, and Client-server
  • Strong hands on experience with planning, design, configuration implementation & maintenance of AIX, HP & SUN and LINUX Servers.
  • Strong Knowledge in Windows XP and NT Administration.
  • Working knowledge in Oracle Database Administration and Performance tuning.
  • Good Inter personal communication skills and ability to work in a team are my assets.

EDUCATION

  • B.S. Computer Science
  • IBM Certified Specialist - System p Administration
  • Microsoft Certified Systems Engineer (MCSE) certification
  • Microsoft Certified Professional (MCP)

SKILLS

Operating Systems:AIX 4.3.x/5.1/5.2/5.3, SUN Solaris 8/9/10 (Sparc and X86),
HPUX 10.20/11.0/11i/11.23, Tru64 UNIX 5.1,
RedHat3, RedHat4 and Windows NT/2000/XP

Hardware:
IBM pSeries p630/p650/p660/p670 and p690 and p520/p550/p570/p595
servers. D10 and D20 I/O Draws.
HP-Superdome PA-8800/PA-8700 HP-RX2620/rp5470/rp7410/rp7420/rp8400
HP-rp2600, HP-N4000, HP-L1000/L2000,K580/K570 & D350, HP-UX 11.x in Clustered HA & SAN env with HP MC/Serviceguard and Hitachi Storage.
HP AlphaServer GS1280/GS320/GS160/GS80 HP AlphaServer ES80/ES47
SUNSunFire V880R/480R, SUN E450/420R/280R, SunStoredge 3500 Disk
Arrays, EMC Symmetrix, SunStoredge L1000 Tape Library.

Tools:
HMC , NIM, Smitty, HACMP, WebSM, VIO, LPAR, OpenView OVO 8.x, Performance Agent and Glance 4.7x, Autosys, CA eTrust Access Control, Vintela Authentication Service (VAS), Veritas Volume Manager, Veritas Cluster Server 3.5 HA, Solaris SVM, Solaris JumpStart VeritasNetBackup 4.x, RAID Management, Web Sphere Application Server, Apache servers, Clearcase, Remedy, HP-Service Center and infloblox.

Protocols:
TCP, UDP, IP, Ethernet, LAN, WAN, NIS, NIS+, DNS, NFS, PC-NFS, automount, cachefs, Ipv6, IPSec, FTP.

Databases:
Oracle /8.x/9i/10g, SQL*Net, PL/SQL, Oracle DBA, MS Access and SQL Server

Languages/ Scripts:
Korn and ‘C’ Shells, Sed, AWK, Perl, C, C++ and HTML

EXPERIENCE

Client: Confidential
March 2010-Current
Role: UNIX Administrator

Part of IS-UNIX Infrastructure TEAM, Disney Infrastructure consists of 1000+ physical and 1500+ virtual Servers. Responsible for 24X7 support for AIX, HPUX, Solaris and LINUX operating systems in Development, Test, Stage and Production environments. Day to day activities include new server builds, upgrades, patching, server upgrade, software maintenance, storage management, user administration, troubleshooting, performance monitoring and performance tuning.

Responsibilities:

  • Responsible for installing, configuring and maintaining over 1500 AIX 5.1/5.2/5.3,6.2 on AIX pSeries. /LINUX Systems.
  • Configured IBM RS/6000, pSeries p550, and p520, p610 machines for production, staging and test environments.
  • Migrated HACMP 5.1 to HACMP 5.2.
  • Migrated applications and software modifications from the development environment to production.
  • Installed, configured and applied periodic technology level, fixes and microcode updates on AIX 5.3 on pSeries p550, p570, p590, p650.
  • Responsible for event processing, change management and problem determination.
  • Responsible for Creating, installing and maintaining over 100 LPAR on P 570, 590.
  • Installed and configured VIO server’s v1.5 and carved LPAR’s by assigning appropriate resources on
  • IBM p570 and p590 machines and installed AIX 5.3 with NIM server.
  • Strong experience on AIX specializing in high availability, disaster recovery, business continuity and virtualization.
  • Configured backup/archive policies using Tivoli Storage Manager (TSM) Backup utility and mksysb
  • images of root volume group to meet data archiving requirements and disaster recovery readiness.
  • Responsible for User/Group Account Management.
  • Responsible for performing tasks such as System Startup/shutdown, Backup strategy, Printing,
  • Documentation, User Management, Security, Network management.
  • Worked withIBM SANDS4500, DS4700, DS6000 and DS8000.
  • Administered and monitored processes using topas, vmstat, ps –ef. Iostat, nmon.
  • Analyzed System Dump Generation and sent System Dump to AIX System Support Center.
  • Installed and configured new hardware and software on AIX systems. and Diagnosed hardware and software problems and provided solution to them.
  • Extensive experience using Remedy.
  • Provided production support in an on-call rotation in a 24x7 environment Installed NIMserver and clients using mksysb.
  • Created and updated SPOT resources through lpp_source resources.
  • Installed OS on NIM clients using NIM Server.
  • Installed, configured and maintained LDAP.
  • Performed Failovers in HACMP cluster environment and monitored servers.
  • Performed installation, periodic maintenance updates and applied APAR fixes.
  • Implemented, installed and supported high availability cluster on IBM RS6000 and pSeries platform.
  • Setup and configured networkTCP/IPonAIX.
  • Created and Managed Volume Groups and Logical Volumes.
  • Provided users with special limited admin privileges by assigning them to certain groups such as security group.
  • Installed, configured and applied periodic technology level, fixes and microcode updates on AIX 5.3 on pSeries p550, p570, p590, p650.
  • Responsible for disk management, user management, network management and performance management.
  • Performed migration from older Solaris machines to Aix P series.
  • Created and monitored paging space.
  • Install and managed DB2 servers on AIX.
  • Installed and Configured WebSphere Application Servers on Linux and AIX.
  • Installed and configured HACMP v5.2 and v5.4.
  • Built dual VIO v1.5 servers for redundancy purposes.
  • Upgraded and maintained HMC v6 to v7
  • Responsible for firmware upgrade on IBM p550, p570 and p590 machines.
  • Carved 100 LPAR’s on P595 Machines.
  • Performed CRON, AT and BATCH job scheduling.
  • Responsible for installing and upgrading LPP and maintained them in accordance with established
  • policies, procedures and service level agreements.
  • Extensive Shell programming for application management, performance and security monitoring
  • including their maintenance.
  • Great Documentation Skills.

Client: Confidential, Milwaukee, WI
May 2006– May 2010
Role: UNIX Administrator

Part of IS-UNIX Infrastructure TEAM, Northwestern Mutual Infrastructure consists of 300+ physical and 500+ virtual Servers. Responsible for 24X7 support for AIX, HPUX, Solaris and LINUX operating systems in Development, Test, Stage and Production environments. Day to day activities include new server builds, upgrades, patching, software maintenance, storage management, user administration, troubleshooting, performance monitoring and performance tuning.

Responsibilities:

AIX Environment:

  • Evaluated products from potential vendor partners. Advised senior managements in Application, Database, Capacity and Security teams regarding technical merits of new products and conducting POC for tools and server procurement. Provided solution architecture, project management, and capacity planning services, design and administration
  • Installed and configured IBM p520/p550/p570/p590/p595 and IBM p630/p650/p660/p670 for WebSphere, MQ-Series, Tivoli, TNC, UDB/DB2 and Sybase Teams.
  • Upgraded latest firmware, Maintenance Levels(ML) and Fix Packs across the AIX environment.
  • Successfully implemented IBM power Virtualization and consolidated LPAR’s to VIO on p5-570. Built two redundant VIO servers on each p570 frame and successfully migrated existing LPAR’s to VIO clients.
  • Heavily involved in Resource Management efforts like Dynamic Logical Partitioning, Capacity on demand, Dynamic LUN resize, Time-of-day Workload Management, Micro Partitioning, Virtual Ethernet, Ethernet sharing, Virtual SCSI disks etc.
  • Setup HMC and WebSM console for the AIX Administration. Maintained and upgraded HMC’s to the latest levels.
  • Configured redundant NIM servers in each campus for installs, ML upgrades and software upgrades. Automated nightly backups to kick off every day on the individual servers and store the mksysb images on the NIM servers
  • Installed and configured Netbackup Clients for system backups.
  • Application and Database support for WebSphere, MQ-Series, UDB, Oracle and Sybase including upgrading MQ 6, JAVA and C Compilers. Fine tuned and added capacity on demand to the LPAR’s for WebSphere, MQ Series Applications and Database servers.
  • Provided Tier-3 support for the business clients. Heavily involved in resolving Incidents and Problem tickets. Troubleshooting and finding the root cause to the problem are my assets.
  • Worked extensively on Vintela Authentication Service for user authentications. Managed eTrust a CA’s Access Control product. Created policies, rules and procedures as per user/group requirement.
  • Documented several Server Design, Server Build, Best Practices, BCP Disaster Recovery, NIM installs and Performance documents for references.
  • Cross trained team members, conduct technical team meeting twice a week. Created Project charters, Project Management Plan, Project work Breakdown Structure, Status Reports, Update Work Plans and Project Reviews.
  • Performed Proof of Concept (POC) for High Availability Cluster Multiprocessing (HACMP) on p570

HPUX/Tru64 Environment:

  • Provided 24X7 Support for Alpha Servers with Tru64 UNIX (aka: Digital UNIX, OSF/1). specialized in DEC Tru64 UNIX-based Alpha 64-bit RISC servers, high performance SCSI and FibreChannel SAN storage subsystems and networking products.
  • Day to day activities includes Server Installations, installing patches, backup and restores, loading and unloading the software subsets. Licensing software, Managing disk(hwmgr, dsfmgr), disk Utilities(scu, devswmgr), Managing AdvFS with LSM, Setting up filesystems for new applications/databases, Managed the User environment using VAS and AccessControl, Building new kernel, Configuring the system Dynamically and modifying the system attributes.
  • Used Monitoring tools like Event Manager/Insight manager/HP Analyze. Familiar with sys_check, Performance Manager and Class Scheduler.
  • Worked extensively in Troubleshooting hardware failures, system crashes, CPU/swap/Memory/Filesystems issues.
  • Supported and performed System Administration tasks HP-Superdome PA-8800/PA-8700 HP-RX2620/rp5470/rp7410/rp7420/rp8400 running HPUX 11.0(32bit)/HPUX 11.0(64bit)/HPUX 11i/HPUX 11.23/HPUX 11.31 in Clustered HA & SAN environment with HP MC/Serviceguard
  • Installing HP-UX 10.x and 11.x operating systems, upgrading from 10.x to 11.x, installing new software for these machines, configuration management and troubleshooting, scripting on shells, HP-UX accounting, usage of time for users, NFS, DNS, FTP, TCP/IP, HP Openview, CDE, installing printers and plotters, writing cron jobs for backups daily, weekly and monthly., restoring of data and applications files. Network Security.
  • Cutover HP-UX Hardware platforms from K class model to SuperDome’s and RP’s.
  • Backup data with Veritas Netbackup. Installed and configured HP OpenView tools, including Measure Ware, Perf View, GlancePlus, OVO, and NNM. Participated in network monitoring and enterprise event/fault management with these tools as well as BMC Patrol
  • Day-to-day job responsibilities also included programming in UNIX SHELL and PERL for text processing, to automate and monitor huge file transfers between LPARs and Mid-range Servers (UNIX )

Solaris Environment:

  • Installed and configured Solaris8/Solaris9 servers for monitoring network appliances, Web Applications and Security Solutions.
  • Configured Solaris 10 x86 on HP DL385 G2 for Directory Services 6.2(LDAP).
  • Applied latest Solaris Recommended Security Patches twice a year in the Solaris Environment. Application patch management, software installs, filesystem management and system management are the part of daily activities.
  • Built a Solaris JumpStart/Flar environment. Configured a customized JumpStart setup along with infoblox a DNS Module which provides DHCP services for pxe-boot.
  • Hardware management includes replacing BAD disks, Ethernet/SAN cards.
  • Used SVM on Solaris10 and Veritas VxVM on Solaris 8/9 for Volume Management and filesystem Management.

Client: Confidential, Sunnyvale, CA
October 2004 – April 2006
Role: UNIX Administrator

Part of System Administration/Operations Group. NewWorldIQ provides Online Marketing Solutions created by Marketers for Marketers. NewWorldIQ builds online relationships and brand awareness while demonstrating your marketing brilliance at the same time.

Responsibilities:

  • Provided 24x7, production support which involved giving production support to AIX , HPUX and SUN servers at hosting site (Quest Data Center), upgrade hardware, add memory & CPU'S, increase swap space and backups both at important filesystem level and system level.
  • AIX Systems Administration. Worked with different teams on multiple projects regarding network performance and setting system standards. Daily activities included resolving issues with NFS, NIS, DNS, Sendmail, and installing software and licenses. Did Adds, Moves and Changes for Systems, Users, Printers and Modems.
  • Upgraded and installed new versions of AIX 4.1.5, 4.2.0 , 4.3.2, and 4.3.3. Installed and maintained latest level firmware upgrades and the Maintenance levels.
  • Worked with nmon performance tool to analyze AIX servers on CPU, Memory usage, Kernel Statistics, Disk I/O rates, filesystem monitoring, Network I/O rates, paging space and paging rates, CPU specifications, Top processors, Asynchronous I/O etc.
  • Monitored system performances and upgrades on the HP 9000, HP rp5470 and HP rp2470 Enterprise Servers. Created HP Software depot for installing quarterly patches to HPUX environment. Also set up DD disks for a quick recovery of the servers.
  • Installed SSH and Remote access to all the SUN Servers at the Data Center.
  • Patch Administrator: Kept current with Kernel and Security Patches at sunsolve.com to keep machines safe and running.
  • Worked with iPlanet 4.1 and Apache webservers. Oversaw the installations and configurations of webservers and LDAP 4.11
  • Expertise with EMC Symmetrix, Timefinder, BCV, EDM. Scheduling Disk to Tape Backup using EMC’s Enterprise Data Manager EDM.
  • Worked extensively on installed and configured Veritas NetBackup 4.5 to perform backups in Development environments.
  • Provided daily database and system reports to the Development and Operation teams.
  • Installed Oracle 8.1.6.3 Enterprise software on SUN E250 and SUN E4500 servers
  • Provided production database copies to the development and Quality Assurance teams as per the request.

Environment:
C++, Java 2.0, Visual C++, HTML, Oracle 8.1.6.3, SQL*Loader, SQL*8 and Apache Server, AIX 4.1.5, 4.2.0 , 4.3.2, and 4.3.3, HPUX 10.x and HPUX 11.0 Solaris 2.7/2.8, RS/6000, IBM p620, Sun E450/4500, StorEdge 3500 Disk Arrays, HP rp5470, HP rp2470, HP SureStore Tape Array 5300

Client: Confidential, Lowell, Massachusetts
January 2004-September 2004
Role: UNIX Administrator

Part of Unix Administrator’s team responsible for the maintaining UNIX Environment. Order Trust provides order management and payment processing services. OrderTrust's order and payment services provide merchants with a scalable, reliable, and secure resource for all of their back-end processing needs with detailed activity reports about vendor performance.

  • Providing 7x24 support and maintenance and troubleshooting and solving the problems appeared in the system.
  • Installation and configuration of SUN servers.
  • Configuration and Performance Tuning of System Resources as per client’s requirement.
  • Memory management, Disk layout, Network configuration.
  • Jumpstarting Sun servers and proprietary applications.
  • Expertise in Logical Volume Management with Veritas.
  • Logical Volume Management including creating volume groups, logical Volumes and extending logical volumes.
  • Creating a bootable Disk and Disk Mirroring.
  • File system Management and maintenance.
  • Administering backups and automated backup schedules.
  • Configured storage devices (EMC symmetrix Series, Sun D1000 Arrays)
  • Solved problems related to NIS, NIS+, NFS, mailboxes, and Network related.
  • Monitoring critical systems and taking preventive actions.
  • Network Printer configuration.
  • Process monitoring and performing preventive maintenance.
  • Involved in setting up Lab Network of 200 Nodes.
  • Providing good System administration support to the Development team.
  • Ensuring high reliability and uptime of critical systems.
  • Installing and Upgrading the ORACLE Instance and the application tools.
  • Installation and configuration of Net 8.
  • Manage and Tune Oracle Database Instances for maximum availability and performance.
  • Used Clearcase for Release Management and Remedy for Defect tracking.
  • Worked very closely with the Developers and Oracle DBA group.
  • Contacted Sun support for technical assistance.

Environment:
SUN Solaris 7/6/2.5, IBM AIX 4.3/4.2, RS/6000, SUN Ultra 5/2, SUN Enterprise servers: 4800/4500/450, SPARC station-5, Remedy, CISCO Routers (2500, 7200), EMC symmetrix with time finder and VERITAS Volume Manager

TECHNICAL SUPPORT ANALYST/QA TECHICIAN,
January 2003 - December 2003
Confidential, ODChicago, Illinois

  • Performed diagnostic services on Microsoft Windows systems to determine action regarding hardware/software maintenance.
  • Responsibilities included installation and maintenance of networked computer workstations.
  • Assisted in providing technical assistance to users regarding network/desktop problems;
  • maintained, analyzed, performed troubleshooting and repairing computer systems, and hardware and computer peripherals.
  • Purchased, installed, maintained: motherboards, CPU’s, Memory, CD Rom, Writers, keyboards, CRT/LCD monitors, laser printers, scanners, and power switches.
  • Installed software: Maxim Eyes, Office 2000, Office XP, MCAfee, Norton, Netscape, etc.
  • Scanned software, and multiple programs specific to each client’s business requirements.
  • Installed networks using switches, routers, hubs, cables, and set up printers on networks.
  • Maintained excellent professionalism and communication with clients.
  • Conducted testing on existing programs and new programs written specifically for client.
  • Ensured applications met client expectations, requirement definitions, company standards, and end-user friendliness.
  • Designed, composed, and updated test scripts for in-house and client acceptance testing based on requirement documentation and experience.
  • Composed detailed product documentation to include user guides and training materials.
  • Utilized and maintained a close-looped discrepancy reporting system.
  • Provided technical assistance in support of field reported issues: analyzing software and operational procedures to debug defects, train users, or devise corrections and/or alternative work methods to solve issues.
  • Maintained software and configuration management controls for products.
  • Effectively met project deadlines with high quality.

COMPUTER FIELD ENGINEER (Nationwide)
June 2001- December 2002
Confidential, Chicago, Illinois

  • Worked with a team on a special project for STATEFARM Insurance company , building and installing new networks and servers for State Farm Insurance Company’s nationwide.
  • Worked on a special team project installing new networks and servers for HFBC Bank.
  • Identified system requirements by interviewing customers, analyzing applications, programming, and operations.
  • Evaluated existing and proposed systems, and recommending solutions to infrastructure.
  • Established and upgraded systems by planning and implementing desktop rollout projects; installed hardware and software.
  • Maintained installation records by documenting procedures used.
  • Contributed to team effort by accomplishing related results of project objectives.
  • Effectively met project deadlines with high quality.

COMPUTER FIELD ENGINEER,
January 2000-May 2001
Confidential, Chicago, Illinois

  • Provided second-level tier2 technical support on Hardware and Software operational or maintenance of Desktops/Notebooks and/or peripherals using documented procedures and available tools.
  • Used troubleshooting techniques and tools to identify products that are defective and followed guidelines in issuing service calls.
  • Advised/educated customers within procedural guidelines to ensure a complete solution to their technical or service questions in a professional manner while maintaining self-proficiency.
  • Acted independently to field support calls that are technically and interpersonally complex in nature.
  • Identified and provided input on unique or recurring customer problems.
  • Responsible for customer satisfaction by handling customer problems and performing assigned functions according to standardized policies and procedures.
  • Tracked and logged problem calls in the technical support system.
  • Worked in a special 6 month project building and installing new networks for Illinois Department of Motor Vehicles.
  • Effectively met project deadlines with high quality.

SOFTWARE PROGRAMMER/TESTING TECHNICIAN,
1998 August - December 1999 Assistive Technology Exchange Network (ATEN)
Confidential, Illinois

  • Directly responsible for the software upgrades and hardware maintenance of the systems.
  • Used testing and trouble shooting to identify products defective.
  • Rebuilt and installed computer software programs
  • Designed testing instructions for new software.
  • Directly responsible for testing and troubleshooting software programs and assisted programmers with modifications.
  • Effectively met with project managers to collaborate and ideas and changes
  • Effectively met project deadlines with high quality.

Professional Trainings

IBM Advance Power Virtualization Training, Milwaukee.
HP-UX Virtualization, Onsite training, US Bank, Milwaukee.

References upon request

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