SUMMARY

• Over 7 years of IT experience specializing in UNIX Administration and Production Support of various systems on AIX 4.3, 5L, 6.1 & 7.1 & Linux RedHat 4.x,5.x,6.x.
• Strong background noledge of Networking concepts and experience in Network Administration & Troubleshooting on AIX based systems
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX
• Experience in Installation and configuration of Power7/6/5 IBM System p780,p770,p750, p595, p590, p570, p550, p520 & RS6000 Servers
• Experience in installation and configuration of Virtual me/O Server (VIOS) (1.5, 2.1 & 2.2).
• Experienced in AIX Migration Installation, Preservation Installation and Complete Overwrite Installation using CDROM and configuring NIM Server.
• Setup NIM server and clients. Defined NIM resources like lppsource, spot, mksysb, image.data, bosinst.data. Installing AIX 5L/6L/7L images and upgrading AIX technology level using NIM server.
• Strong noledge and experience in Logical Volume Management (LVM), Storage and Disk Management
• Configured and Administered HACMP 4.5, 5.1, 5.2, 5.3, 5.4, 5.5, 6.1 & 7.1 IBM PowerHA System Mirror to monitor, disaster recovery, detect and react to failure events, allowing teh system to stay available during random, unexpected software problems and also configured to react to system events.
• Implemented NPIV on p - 590/750/770/780. Disk-mapping via vscsi onto teh desired client. SEA failover.
• Responsible for installation and configuration of VIO Server wif AIX 5L/6L/7L on p570 and p590.
• Installed and configured dual VIO servers wif SEA, lnk aggregation, and MPIO.
• Extended noledge of IBM virtualization including configuring VIO servers.
• Strong noledge and experience in Logical Volume Management (LVM), Storage, and Disk Management.
• Configured, deployed and maintained VIO servers, VIO clients, LPAR, NIM, and HMC.
• Extended noledge of IBM Power SystemMirror for AIX to implement High Availability for SAP Applications.
• Performed 72 hours DR exercise for Tier 1 servers environment.
• Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup/ recovery and upgrading IBM AIX, Linux (Red Hat & SuSE) and Sun Solaris in large environments.
• Expertise in designing/building/configuring documentation related to Red Hat Enterprise Linux 4,5,6 via Kick start/PXE and Red Hat Satellite Server
• Experienced in implementing virtualization technology using VMware and Xen.
• Develop and implement virtualization infrastructure utilizing teh VMware VI 3 Infrastructure environment, VMware ESX Server, Virtual center deployment, Consolidated Backups, P2V conversions & troubleshooting.
• Clustering Virtual Machines wifin teh VMware ESX/ESXi infrastructure.
• Build servers from teh scratch, loaded firm ware, setup disk RAID level, installed RED HAT linux 5.x & 6.x .
• Installed XEN and vert-manager on physical Red hat Servers, created new clusters and assigned consolidated file system on whole XEN cluster.
• Created virtuals on Red hat Hosts, assigned Memory, CPUs and static IPS to those virtuals and installed different software like java, centrify etc.
• Upgraded teh current version of REDHAT linux to Red Hat Linux 5.x & 6.x
• Installed and configured Heartbeat 2.1 on Redhat servers, assigned multicast IPs.
• Created Volume groups, File system and virtual IPS for cluster resources. Adding SAN disk to an existing XEN host and configuring teh cluster wif OCFS2.
• Performed all teh LVM tasks like creating Physical volumes, Voume groups, Logical Volumes, and file system.
• Setup Multi-Vlans on RedHat Xen server wif bonded interface.
• Worked on setting up Setting up a Linux 11.2.0.2 RAC environment and applied necessary patches.
• Configured PCI VLAN settings.
• Installed Oracle 10G R2 RAC on RedHat Linux RedHat Xen.
• Managed Paging space and performance related issues.
• Successfully installed and configured IBM Web Sphere, DB2, and Oracle9i.
• Successfully installed Open SSL and Open SSH on several servers.
• Linux performance analysis and optimization.
• Experience in SAN Volume Controller (SVC) and DS4000 series devices.
• Experience in VERITAS File System, Volume Manager, Cluster Server, Net backup and also IBM SVC and DVS 4000/4800.
• Developed customer specific storage migration procedures for every major operating system, either coming from or going to EMC storage hardware.
• Extensively used HP Quality Center 10 to create test cases, raise defects, analyzed/closed defects.
• Extended noledge of IBM Blade server’s technology.
• Successfully created and implemented teh change control for various different issues.
• Successfully configured several TSM clients and troubleshooting backup related issues.
• Implemented and maintained Tivoli storage management (TSM 5.4 and 5.3).
• Experience in configuring Database Mirroring in MS SQL Server 2005/2008.
• DNS, NFS, FTP, SFTP, SCP, networking of TCP/IP-related services, net masking, sub netting, patching OS and firmware.

TECHNICAL SKILLS

Operation Systems: IBM AIX (v4.2, 4.3, v5.2, v5.3, v6.1, v7.1), HP-UX (v10,v11.x), Redhat Linux(v6.2,7.2,Enterprise Linux),Windows 2000/2003 server, Windows 95,98/NT/ME/XPHardware IBM p520, p550, p560, p570, p575, p750, p770 IBM P670, IBM, P650, IBM RS/6000 F50, JS20 IBM Blade server, HMC

Application Server and Technologies: NIM, Apache, HACMP clustering, DNS, NIS, NFS, Websphere Application Server 6.x/5.x, Websphere Portal server, Windows 2000/2003 Active Directory, Microsoft IIS Server4/5, SSL, Distribution Server.

Backup: Tivoli Storage Manager (TSM), IBM ADSM and Veritas Netbackup

Storage Technologies: AIX Logical Volume Manager, IBM SAN, EMC powerpath, Cisco Router, Cisco Catalyst Switch, XIV, SVC, DS8100

Performance Tools: Topas, vmstat, iostat, netstat

PROFESSIONAL EXPERIENCE

Confidential, PA

UNIX System Administrator

Responsibilities:

• Actively involved and responsible for teh on-going implementation, support, and maintenance of teh business computing environment as well as future projects.
• Hands-on experience wif installation, configuration, and migration projects on IBM POWER5/6 servers and supporting AIX servers for availability and mission critical systems in a 24x7 environment.
• Performed 250 + AIX 6.1 & 7.1 installations and upgrades using NIM servers.
• Migrated 400 + servers from power 5/6(p550, p570) to power 7 (p750, p770, p780) servers and upgraded AIX 5.3 to AIX 6.1 & 7.1.
• Worked on RHEL 5.x, 6.x & SUSE Linux Enterprise Server 9.0
• Responsible for AIX administrative tasks like disk management, logical volume management.
• File system management like creating file systems and performing file system corruption checks in maintenance mode.
• Created and configured standard & Virtual LPAR’s using HMC and installed AIX 6.1 & 7.1 on p770 servers.
• Day to Day activities included handling Security issues like stale unix account Cleanups, 90 day password changes, setting max age and min age, creating a list of umask permission for various users.
• Wrote scripts to automate day to day activities,
• Used command line and advanced commands options in Redhat Linux. Teh work also included updating patches in all teh Linux servers and doing Performance Tuning. Also used various tools to monitor teh server’s health in a production environment.
• Responsible for installing patches and performing upgrades like maintenance level upgrades, firmware, kernel and memory upgrades.
• Used various AIX commands locking of invalid users using Smit in AIX. Worked on Vmware ESX Server on Intel Linux Servers.
• Configure HACMP for a clustering environment on AIX servers.
• Performing O/S upgrades and Maintenance level upgrades.
• Use ILO/HMC for remote access of servers on Linux and AIX respectively.
• Troubleshoot hardware, software and Operating system and network related errors on Linux and AIX.
• Install multipathing software such as EMC powerpath, HDLM.
• Configuring bonding in Linux and etherchannel in AIX.
• Performed system-monitoring wif teh halp of tools like TOPAS, SAR, VMSTAT, IOSTAT to report systems usage and performance
• Maintain & troubleshoot SAN and Fibre card related errors on AIX.
• Maintain & troubleshoot Storage Disks from IBM, HITACHI, and EMC Disk arrays.
• Troubleshooting networking issues on AIX boxes as well as switches.
• Responsible for creating user profiles, groups and assigning access permissions.
• Installed and configured dual VIO servers wif SEA, lnk aggregation, and MPIO.
• Responsible for LVM managment, creating VGs, LVs and mirroring and unmirroring of disks.
• Adding LUN’s, troubleshooting Fibercard adapters for Hitachi and HP SAN arrays.
• Monitored system activities, log maintenance, and disk space management
• Responsible for packaging, configuring and deploying WebSphere application server on AIX.
• Responsible for maintaining system backups using mksysb.
• Worked wif various teams and halped in creating policies and disaster recovery planning.
• Experience of configuring 4 nodes cluster wif multiple RG configuration.
• Upgrading and updating TL, APAR and patches on AIX 5.2/5.3/6.1 & 7.1.
• Perform User Account management, data backups, and users’ logon support.
• Experience of upgrading and updating p550 and p570 systems and devices firmware using HMC
• Configuration and administration of Fiber Adapter’s and handling AIX part of SAN
• Installation and configuration of VIO Server 2.x and AIX 5.3 on client LPAR’s using p520 and 570 boxes.
• Installed and configured Sudo for users to access teh root privileges.
• Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Provided support by 24x7 shift rotation basis and pager support.
• Setup new RedHat Enterprise Linux 5.x, 6.x boxes for TIBCO project and provide end user support for Development and QA Team
• Identify HP Blade Center Configuration Matrix, Identify resource allocation
• Installation & configuration of VMware ESX 3.5 Servers, VMware Virtual Infrastructure Server, VMware License Server and VCB Setup
• Create Guest OS RedHat Enterprise Linux and make readymade Golden Image/Template using VMware Virtual Infrastructure Client
• Clone new Guest OS from existing Golden Image/Template
• Create Snapshot and test Rollback, Configure VMotion, Cluster and Failover
• Write script to take Snapshot so that Veritas Netback Client can read VMDK files
• Integration wif HP’s Open Viewer and LDAP.

Confidential, Kansas City

UNIX/AIX System Administrator

Responsibilities:

• Installed and upgraded operating system AIX 5.1/5.2/5.3 to AIX 6.1
• Installed and upgraded service pack ML08/ML09 for AIX 5.3 and latest fixes
• Built VIO server and client LPARs using HMC and configured Shared Ethernet Adapters (SEA).
• For teh performance tuning used HMC to allocate and de-allocate teh CPU (micro partitioning) on teh LPARs under different VIO Servers.
• Installed several application software, handled trouble shooting, user management and hardware support, backup and restore patches, upgrades.
• Configured NIM server and clients to do teh AIX installations and upgrades
• Extensively used LVM, creating Volume Groups, Logical volumes, and disk mirroring.
• Involved wif making teh 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 TSM client, configure teh server and DB2 database backup to teh TSM server for different Servers and HACMP Clusters.
• Managed data backups, archives, restoration and recovery.
• Setup network printers and installed client/server applications. Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Performed day-to-day jobs such as monitoring log files, writing and running teh scripts to automatically watch teh resources, CPU, memory, me/O, and paging space.
• Wrote shell scripts for automated installations, to extract logs.
• Provide Virtual Solution to expand their existing Blade Server using VMware ESX Server
• Identify Blade Center Configuration Matrix, Identify resource allocation
• Installation & configuration of VMware ESX Servers, VMware Infrastructure Server and Client, License Server, LMTools, update manger, VMware converter and VCB Setup
• Create Guest OS RedHat Enterprise Linux and WinNT and Template
• Create Windows 2003 Enterprise Edition Guest OS and AD
• Migrate Guest OS from VMware ESX 3.0.0 to VMware ESX 3.5
• Migrate Clusters from VMware ESX 3.0.0 to VMware ESX 3.5
• Create Snapshot and test Rollback, Configure VMware VMotion, Cluster and Failover using VMware Virtual Infrastructure Client
• Troubleshoot LUN issues wif EMC Clariion SAN
• Ensured 24*7 System Support for teh mission critical data in production Environment.

Confidential, Bloomington, IL

AIX/Linux Administrator

Responsibilities:

• Worked wif 100+ IBM servers such as IBM RS/6000, p670, p5-570, p5-595 servers running AIX 4.3.3, 5.1, 5.2 and 5.3
• Setup and configured TCP/IP network on LINUX and AIX.
• Worked wif 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 teh migration team for migration from AIX 4.3.3, 5.1 to 5.2 and 5.3.
• 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. supported wif enterprise backups using Veritas Nebackup version 4.5
• Installed, configured and administered Websphere Application Server 4.x/5.0
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per teh client’s requirement.
• Performed extensive Logical Volume Management (LVM) tasks.
• Installed and configured Sudo for users to access teh root privileges.
• Installed application connectivity software to enable IBM print services. Configured and administered firewall rules, including teh use of SNORT, NMAP to TEMPeffectively monitor system files, port security, and network traffic activity coming through teh firewall.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Installing and setting up Oracle9i on Linux for teh development team.

Confidential

AIX/UNIX Administrator

Responsibilities:

• Installed and upgraded operating system AIX 4.3/5.1/5.2 to AIX 5.3
• Installed and upgraded service pack ML05/ML06 for AIX 5.3 and latest fixes
• For teh Performance Tuning used HMC to allocate and reallocate teh CPU (micro partitioning) on teh 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.
• Performed daily backups, restoration of data as per requests from developers.
• Configured SSH for secure telnet and FTP connections.
• Configured DNS, LDAP, me-planet, Apache HTTP servers.
• Configured Microsoft Active Directory domains.
• Provided support by 24x7 shift rotation basis and pager support.
• Performed User Account management, data backups, and users’ logon support.
• Diagnosed hardware and software problems and provided solution to them.
• Monitored trouble ticket queue to attend user and system calls.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Updated data in inventory management package for Software and Hardware products.
• Capacity Planning, Infrastructure design and ordering systems.
• Worked wif DBAs on installation of RDBMS database, restoration and log generation.