SUMMARY

• Over 7 years of IT industry experience in System Administration and Production Support of various systems on AIX 4.3/5.1/5.2/5.3/6.1/7.1, and Windows environment.
• Thorough understanding of fundamentals of AIX UNIX kernel and file system concepts.
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX.
• Experience in Installed and configured IBM System P p690/p650, p5 - 570, p5-550, p5-55A, p6-570, p 7-740/770/795, RS-6000 Servers.
• Supported hardware including IBM Blade Center hardware HS20, HS40, and JS20s, JS21s & JS41s (PowerPC) and older IBM RS6000 (models F50 and 43P).
• Experience in managing hardware from HMC, AMM/IVM.
• Experience in installation and configuration of Virtual I/O Server (VIOS) 1.1, 1.3, 1.5, 2.1, 2.2.
• Experienced in AIX Migration Installation, Preservation Installation and Complete Overwrite Installation using CDROM and configuring NIM Server.
• Experience in installation of AIX in an LPAR environment pSeries.
• Experienced in Administration Concepts such as Virtualization and logical partitioning (LPAR) of CPU, HMC usage, Workload Manager, MPIO, Service Update Management Assistant (SUMA), Live partition mobility (LPM).
• Hands on experience with Live Partition Mobility (LPM) from one server to another.
• Expertise in SMIT, LVM, Mirroring, User & System Resource management, Paging Space management, job scheduling.
• Configured HACMP 4.x/5.x to monitor, Disaster recovery, detect and react to failure events, allowing the system to stay available during random, unexpected software problems and also configured to react to hundreds of system events.
• Experienced in Process administration (i.e. monitoring processes using PS utility, signaling a running process using KILL and KILLALL command, monitoring processes and system load using topas, vmstat, iostat, netstat, tprof, svmon, lvmstat, sar, nmon and uptime utilities, monitoring logs, scheduling processes using Cron utility).
• Automation of Jobs through Crontab.
• Experience in DHCP, DNS, NIS, NFS, Send mail, ftp, remote access, security management, and system troubleshooting skills.
• Expert in setting up ssh, scp, sftp connectivity between UNIX hosts.
• Good understanding of error logging subsystem and Performance Monitoring tools like vmstat, iostat, netstat on AIX 5L.
• Experience working in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment.
• Experience in connecting to an EMC disk subsystem with PowerPath and MPIO.
• Familiar with Tivoli Storage Manager (TSM) for backup automation with policies configuration for Web based databases, setup consisted of server and client backup with progressive backup methodology
• Expert in configuring a TCP/IP network on AIX, creating mount points for Server directories and mount these directories on AIX servers.
• Resolved many Application Startup problems, PATH problems, and Name conflicts, TCP/IP, LAN /WAN, BIND, Sys logging and Networking Problems.
• Strong in LVM (Storage Methodology), Performance monitoring, Error logging, Diagnostics, and Fine-tuning.
• Excellent in troubleshooting and Maintaining AIX and Patching.
• Team player with excellent communication and inter-personal skills.
• Experience with working in Production, Development and Testing environment

TECHNICAL SKILLS

Operation Systems: IBM AIX 4.3.3, 5.1, 5.2, 5.3 & 6.1, L5 AS/400 OS/2, IBM AIX p-Series servers (p590, p550, p520, p670, p630,p770,p795), VERITAS Net Backup server, Windows 2000/2003 server.

Hardware: IBM P520, IBM P550, P560, P570, P575, IBM P670, IBM, P650, p770,p795 IBM RS/6000 F50, JS20 IBM Blade server,, HMC - Hardware Management Console.

Application Server and Technologies: NIM, HACMP 4.3.1 & 4.4, HACMP/ES 4.5, HACMP 5.1 - 5.5, Tivoli storage Manager. Apache Server, Samba server. HACMP (4.5, 5.2), Linux, UNIX, LVM.

Databases/scripting: MSSQL 2000, DB2, Oracle, Shell and PERL scripting.

Languages: Java, C, C++, UNIX Shell Programming, XHTML, JSP, ASP.

Storage Technologies & Networking Technologies: AIX Logical Volume Manager, IBM SAN, EMC powerpath, Naviagent, NAVICLI, Cisco Router, Cisco Catalyst Switch, TCP/IP, NIM, NFS, NIS, DNS.

Backup/Monitoring Tools: TSM v5.3, v5.4, cpio, tar, mksysb, SMIT, WSM, SAR, topas, tcpdump, snoop, Windows NTBackup/restore.

PROFESSIONAL EXPERIENCE

Confidential, Dallas TX

UNIX/AIX Administrator

Responsibilities:

• Unix System administrator for First Data Corporation on various Unix and Linux platforms including AIX, RHEL and SUSE.
• Installation, migration, Configuration and Administration of AIX 5.3, 6.1 & 7.1.
• Install / Configure VIO servers as well as configuring virtual Ethernet, shared Ethernet (SEA), virtual SCSI and NPIV on IBM Power 6 and 7 systems
• Perform O/S, firmware and required infrastructure software upgrades
• Perform DR Failovers and disk replication failovers using Jackson’s custom HA solutions.
• Responsible for maintaining and administering IBM p570, p740 & p750 AIX servers.
• Responsible for both AIX and VIO server upgrades.
• Responsible for UNIX part of storage migration from one storage array to another storage array and SVC migration.
• Installed and configured Tivoli Work Load Scheduler.
• Responsible for TSM backups of the systems.
• Work with various support tools including Nagios, BMC Remedy, BMC Patrol, Blade Logic and ITIM.
• Worked on DB2 pureScale and GPFS clusters.
• Hands On experience in Creating GPFS File System and Trouble Shooting on GPFS File System.
• Hands On experience in Performing the Disk Migrations on RHEL 5.X and RHEL 6.X KVM Hypervisors.
• Installing required patches and packages using standard RHEL utility’s (YUM & RPM) on RHEL 4,5,6.
• Effective use of LVM disk Management tool to Create, extend Shrink the Logical volumes, File Systems on RHEL and AIX.
• On -call Duties to Troubleshoot; Resolve the Hung up Servers, resource groups, File System Issues, Third party Tools Errors.

Environment: IBM p570, p740, p750, AIX 5.3/6.1/7.1, IBM DB2 pureScale, GPFS, InfiniBand, Red hat Linux (RHEL 5.X and RHEL 6.X), IBM DS8000, IBM SVC, KVM, RHEL Enterprise, File Net, ITIM, BMC BLADE LOGIC, NAGIOS.

Confidential, Beaverton OR

AIX Administrator

Responsibilities:

• Responsible for maintaining and administering production IBM p520, p570, p590, p595, p770 & p795 AIX & UNIX based servers.
• Responsible for software (migrating from older version of AIX to newer version) and hardware refreshes (responsible for migrating the old hardware to new hardware)
• Installation, migration, Configuration and Administration of AIX 5.1, 5.2, 5.3 & 6.1.
• Experienced in migrating AIX5.3 to AIX6.1.
• Responsible for Blade center configuration JS20/JS21/JS22/JS23 for development, test, production and DR environment and AMM/IVM.
• Installation, administration of VIO Server and VIO client LPAR’s using NPIV.
• Upgrading VIO version on pSeries & blade center VIOs from 1.4 to 1.5 and 1.4.1.2-FP-9.2 to 2.1 & 2.2.0.11-FP-24 SP-01
• Upgrading AIX TL from AIX 5.3 to AIX 6.1TL6 SP3
• Upgrading HMC version from 6.x to 7.3.4 and 7.3.4 to V7R7 SP 1(7.7.1.0), HMC V7R7.2.0 and applying efix.
• Firmware upgrade on Blade IVM and pSeries servers.
• Adding new managed systems to the HMC and upgrade the firmware of the HMC’s as required.
• Managed and used NIM server to install, migrate and creating backups
• Experience on Service manager Ticketing tool(hp-SM7) and solving P1/P2/P3/P4 tickets
• Installing and configuring LPARs and VIO Server in pSeries servers through HMC and on Blade center through AMM/IVM.
• Troubleshooting BOS installations, Boot Failures, monitoring systems performance using nagios, sar, vmstat, netstat, iostat, perfpmr and systems tuning.
• Performed Installation and Configuration of NIM. Installed BOS, upgrades, migrations of AIX on each node using NIM.
• Included upgrading NIM master, alternate NIM master, creating the SPOT, lppsource & mksysb NIM clients.
• Applying the security fixes, PTF’s, updating PMR’s.
• Developed and modified Unix shell scripts as per the Customer requirements.
• Fault finding and fixing the hardware related software calls.
• Provided support day to day system administration tasks like system user accounts, disk usage, paging space.
• Creating and restoring the backups in AIX using mksysb.
• Automated the Virtual I/O Server and HMC backups.
• Placing the hardware call and Follow up with IBM Hardware Support to fix hardware problems.
• Involved in Migration installation from AIX 5.3 to 6.1 using various methods.
• Performed System Administration tasks and ensuring 24*7 System Support for the mission Critical Data in production Environment and Provided On call support for Production support.
• Ensured the Systems and Data online, offline, archived Backups on Daily and weekly basis.
• Co-ordinate with IBM CE’s to replace failed Hardware or add new hardware including but not limited to fiber channel adapters, Ethernet controllers, disks, memory dimm’s etc.
• Configuration of EMC Symmetrix and CLARiiON Products in AIX Environment including HBA.

Environment: IBM p520, p570, p590, p595, p770, p795, EMC SAN, AIX 5.1,5.2,5.3/6.1,, UNIX, HP-UX 11i, Red hat Linux.

Confidential, Austin, TX

AIX Administrator

Responsibilities:

• Responsible for installation, troubleshooting and maintenance of 45 AIX 5.1/5.2/5.3/6.1 servers.
• Configuration and administration of HACMP cluster resources, cascading, rotating and concurrent resource groups, event handler testing using clstat, clverify.
• Verify and Synchronize the HACMP cluster, configured HACMP to monitor, detect and react to failure events, making systems available during random and unexpected events.
• Adding, increasing the file system space in HACMP environment.
• Administration of p5-570, p5-550, p4-640 and IBM RS/6000 servers running on AIX 5L for support of SAP Environment on Oracle 10g, DNS, FTP and TSM tape backup.
• System & Backup management using IBM ADSM Backup Server.
• Installing and configuring HMC, LPAR, VIO Server in pSeries servers (p590, p550, p520, p670, p630).
• VIO server Planning and Configuration.
• Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment
• BM RS/6000 SP System Software Maintenance, AIX System Dump Generation and sending System Dump to AIX System Support Center.
• AIX System Administration using SMIT.
• Setup and configured network TCP/IP on LINUX and AIX servers including RPC.
• Experienced in installation and configuration of HACMP.
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.
• Logical Volume Management (LVM) of AIX.
• Installed, configured and administered Websphere Application Server 4.x/5.0
• Predefined and Customized Volume Group management on AIX.
• Disk Management on AIX using SMIT.
• Installation and Administration of Tivoli Directory Server.
• Disk Replacement Strategy on AIX.
• Performance Management & Tuning of AIX /UNIX Kernel.
• Managing Cron jobs, batch processing and job scheduling.
• Wrote CGI/PERL scripts for various kinds of reports needed by the users and developed common modules in PERL.
• Software installation and maintenance.
• Security, Disaster Recovery, users and groups administration.
• Supported Oracle financials and Retail application servers for patches, e-fixes and compatibility issues.
• Responsible for configuring VLANs on IBM p Series, Nortel Switches, CISCO switches.
• Networking service, performance, and resource monitoring.
• Familiar with IBM Enterprise Storage Server (ESS).
• Supported web services (Apache) and J2EE application server software (JBoss, Tomcat, WebLogic) and messaging applications Websphere (WMQ), WebSphere message broker (WMB), and WebSphere Transformation Extender(WTX).

Environment: IBM AIX 4.3, 5.1, 5.2, 5.3, IBM P-Series Servers, Solaris 9, TSM, P5-590, 570, 690, 670, 630, P7-750, 770, Korn Shell, NIS, NFS, HACMP Software.

Confidential, Sunnyvale CA

AIX/UNIX Administrator

Responsibilities:

• Installed and upgraded operating system AIX 5.1/5.3 to AIX 5.3.
• Installed and upgraded service pack ML05/ML06 for AIX 5.3 and latest fixes
• Built and Created Several LPARs using VIO Server and HMC
• For the Performance Tuning used HMC to allocate and reallocate the CPU (micro partitioning) on the LPARs under different VIO Servers.
• Installed several application software, handled trouble shooting, user management and hardware support, backup and restore patches, upgrades.
• Handled NIM, User & System Resource management, job scheduling, and Paging Space management.
• Extensively used LVM, creating Volume Groups, Logical volumes, and disk mirroring.
• Added new storage on the LPARs by using HMC/VIO server
• Involved with making the documents of HACMP upgrade from HACMP v5.2 to HACMP v5.4
• Installed and configured HACMP 5.4 cluster for upgrade testing purpose
• Installed and Upgraded HACMP v5.2 to HACMP v5.4
• Installed DB2 database, Opsware client on different Servers and HACMP clusters
• Installed TSM client, configure the server and DB2 database backup to the TSM server for different Servers and HACMP Clusters.
• Managed data backups, archives, restoration and recovery.
• Upgrade the Network Interface speed from 100 MBPS to 1000 MBPS on different servers/clusters for the adsm backup and network performance
• Performed day-to-day jobs such as monitoring log files, writing and running the scripts to automatically watch the resources, CPU, memory, I/O, and paging space.
• Ensured 24*7 System Support for the mission critical data in production Environment.

Environment: AIX 5.1/4.3.3, P5Series,RS/6000 Server S80, S7A, H80, H70, H50, p670, p590, p550, E4500/E6500,EMC Clarion, DMX, ESS/Shark F20, SDD 1.2.0.4, Clients 4.1, ATL7100 tape library, A5000 storage, Oracle 8i, UDB 6.1, Perl 5.6, KSH

Confidential, Conway, AR

AIX/Linux Administrator

Responsibilities:

• Worked with 20+ IBM servers such as IBM RS/6000, P570, P590, P595 servers running AIX 4.3.3, 5.1, 5.2
• 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
• Installed and configured network services such NFS, NIS and DNS Server
• 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
• Worked in the migration team for migration from AIX 4.3.3 to 5.2.
• Configured backup/archive policies using Tivoli Storage Manager
• Modified Korn and Bourne shell scripts in order to automate administration tasks like customizing user environment and performance monitoring.
• Performed routine checks on nodes by monitoring syslogs and errorlogs for system and hardware errors.
• Setup cron jobs schedules for various backup and monitoring tasks and supported with enterprise backups using Veritas Netbackup version 4.5
• Setup and configured network TCP/IP on LINUX and AIX servers including RPC.
• Experienced in installation and configuration of HACMP.
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.
• Logical Volume Management (LVM) of AIX
• Predefined and Customized Volume Group management on AIX.
• Disk Management on AIX using SMIT.
• Installation and Administration of Tivoli Directory Server.
• Disk Replacement Strategy on AIX.
• Performance Management & Tuning of AIX /UNIX Kernel.
• Managing cron jobs, batch processing and job scheduling.
• Software installation and maintenance.
• Security, Disaster Recovery, users and groups administration.
• Networking service, performance, and resource monitoring.
• Familiar with IBM Enterprise Storage Server (ESS).

Environment: Hardware: IBM AIX 5.1,5.2, (RS/6000) SP frames, HP-UX 11i, Solaris 2.6, Tivoli Storage Manager, pSeries servers ( p595, p650, p670, p690), EMC Celerra File Server, EMC Symmetrix, Perl, Korn.