PROFILE:

• Over 6+ years of IT experience specializing in Aix/LINUX Administration and Production Support of various systems on AIX 4.3, 5L, 6.1, Linux (RedHat and SUSE) and Windows NT/2000/2003.
• Strong background knowledge 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 on IBM System P p690/p650, p5-570, p5-550,p5-55A and p6-570, RS-6000 Servers.
• Experience in installation and configuration of Virtual I/O Server (VIOS) (1.5 and 2.1).
• Experienced in AIX Migration Installation, Preservation Installation and Complete Overwrite Installation using CDROM and configuring NIM Server.
• Strong knowledge and experience in Logical Volume Management (LVM), Storage and Disk Management
• 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 system events.
• Experienced in doing capacity planning for new AIX environments.
• Implementation and Administration of DHCP, NFS and NIS on AIX.
• Good understanding of error logging subsystem and performance monitoring tools like vmstat, iostat, and netstat on AIX 5L.
• 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, adding network routes and debugging network related issues.
• Expertise in shell (korn) scripting and familiar with PERL.
• Excellent in troubleshooting and Maintaining AIX and Patching.
• Expertise in SMIT, LVM, Mirroring, Paging Space management, job scheduling, Performance monitoring, Error logging, Diagnostics, and Fine-tuning.
• Experience performing problem analysis along with recommending and implementing preventive techniques.
• Experience in writing Technical documentation.
• Provided 24X7 support to ensure round the clock availability.
• Team player with excellent communication and inter-personal skills.

CERTIFICATIONS:

• IBM Certified Specialist – Aix System Administration

EDUCATIONAL SUMMARY:

• B .S ( Computer Science )

PROFESSIONAL EXPERIENCE:

Confidential,Libertyville, IL Jan 11 –Till Date
AIX/Linux Administrator

• Working in 100+ IBM servers Environment 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.
• Working 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
• Installation and configuration of network services such as 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
• Configuring volume groups and logical volumes, extending logical volumes for file system growth using Logical Volume Manager (LVM) commands
• Working in the migration team for migration from AIX 4.3.3, 5.1 to 5.2 and 5.3.
• Configuring backup/archive policies using Tivoli Storage Manager
• Modifying Korn and Bourne shell scripts to automate administration tasks like customizing user environment and performance monitoring.
• Performing 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 with enterprise backups using Veritas Nebackup version 4.5
• Installing, configuring and administrating 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 the client’s requirement.
• Performing extensive Logical Volume Management (LVM) tasks.
• Installing and configuring SUDO for users to access the root privileges.
• Installing application connectivity software to enable IBM print services. Configuring and administrating firewall rules, including the use of SNORT, NMAP to effectively monitor system files, port security, and network traffic activity coming through the firewall.
• Developing Korn and Bash shell-scripts to automate routine activities.
• Installing and setting up Oracle9i on Linux for the development team.

Confidential,Benton Harbor, MI November 07 – November 2010
AIX/LINUX Administrator

• Performed Installation and upgrades of operating system AIX 4.3/5.1/5.2 to AIX 5.3
• Performed Installation and upgrade service pack ML05/ML06 for AIX 5.3 and latest fixes
• 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.

Performed daily backups, restoration of data as per requests from developers. Configuration of SSH for secure telnet and FTP connections. Configuration of DNS, LDAP, I-planet, Apache HTTP servers. Configuration of Microsoft Active Directory domains. Supported Client 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 with DBAs on installation of RDBMS database, restoration and log generation.

Confidential,Waltham, MA May 2005 to May 2007
AIX SYSTEM ADMINISTRATOR

• Worked as AIX Administrator in IT infrastructure environment providing server administration, application administration and automation solutions to support business objectives.
• Provided UNIX infrastructure, operations and support for IBM P4/P5 p (p590, p570, p550, p520, p55A, p650, p670, p690) servers running AIX 5x.
• Performed installation, periodic maintenance updates and applied APAR fixes.
• Responsible for performance monitoring of AIX systems, applying upgrades to AIX (current version 5.1 to upgrade 5.3).
• Configured Single and Dual Virtual I/O server with MPIO and Mapped virtual SCSI and Ethernet for LPAR client.
• Installed and configured HACMP 5.3 for two nodes cluster with multiple RG.
• Provided 24*7 support for two nodes HACMP cluster for keeping DB server highly available.
• Created/Installed/Configured four Dual Virtual I/O servers with SEA failover, MPIO and link aggregation on p5-570
• Responsible for installing third party software and upgrading and maintaining installed software.
• Performed testing on VIO servers to verify failover and fallback of on multiple adapters.
• Configured volume groups and logical volumes, extended logical volumes for file system growth need using LVM commands.
• Configured backup/archive policies using Commvault Backup utility to meet data archiving requirements and disaster recovery readiness.
• Create and terminate users Ids on daily basis and granting elevated privileges to users and groups via sudo.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware (Disks, CPU, memory, I/O board, power cooling unit, mother board etc) & firmware.
• Security, users, groups’ administration and daily backup and restore operations, networking service, performance, and resource monitoring.