SUMMARY

• Unix/Linux System Administrator with 7+ years of experience in Information Technology which includes 6+ years in System Administration and Server builds on Linux, AIX, and Windows. It includes Installing, Upgrading, Patching, Configuring and Performance tuning on UNIX/Linux system software and hardware.
• Involved in Administration tasks on Red Hat Linux/CentOS Linux, Windows, and AIX and prepared documentation for the projects executed.
• Tier III support for UNIX/LINUX Servers with over 800 servers in multiple platform (i.e. IBM, SUN, WINDOWS) environment
• Responsible for installation, configuration, support and troubleshooting of UNIX/LINUX and Windows servers including Red Hat, Suse, and CentOS Linux, and AIX
• Knowledge and experience with Apache, TomCat, JBOSS, PHP, MYSQL, PERL, Glassfish, Squid, JAVA, TCP/IP, DNS/BIND
• Worked as a team member for 24x7 on site team, provided L3 AIX/LINUX support for production, dealers, testing and development environment and application teams (SAP, FASTCAR, UDB/DB2, Oracle, etc.)
• Expert in installation and maintenance of AIX/Linux O/S and additional software and fixes.
• Administered IBM/RS6000 and RS6000/SP clusters; AIX 4.x/5.x/6.x & configured HACMP
• Experience includes installation, configuration & upgrade of HMC code 4.x/5.x/6.x/7.x.
• Experience with SMIT, LVM(Logical Volume Manager), Mirroring, User & System Resource management, Paging Space management, job scheduling.
• Experienced in Managing LPARs including configuration of virtual devices (Ethernet, scsi, serial), dynamic resources allocation using DLPAR, configure and manage LPARs using HMC web interface and HMC commands
• Worked extensively on frame migration project & successfully migrated LPARs from P5 570/595 frame to P7 770/795.
• Experienced in various OSI Model layer 7 applications such as ftp, telnet, ssh, rsh, rcp, sendmail, along with security management and system troubleshooting skills
• Worked using SMITTY, diag, ASMI, Command line, LVM (Logical Volume Manager) and other management tools.
• Expert in installation, configuration and troubleshooting of monitoring tools like EMC SMART’s, IBM ITM, CA Unicenter and HP - OpenView V7/V8 in UNIX client environment.
• Worked on multiple projects and with management to handle escalated issues as per need.
• Performed maintenance and provided day-to-day L2 support for Solaris 8,9, 10, and Windows 2000/2003/NT systems
• Experienced in different hardware management tools like: HMC, IVM, SC, T/S, ALOM, ILO/RIB and IBM Director for AIX, SUN, Linux and Windows platform..
• Excellent problem resolution and communication skills with ability to work under pressure in a highly visible role.
• Excellent team worker and ability to quickly adopt and work under minimal supervision.

PROFESSIONAL EXPERIENCE

Confidential, Jackson, MS

System Administrator

Responsibilities:

• Tier III support for UNIX/LINUX Servers with over 800 servers in multiple platform (i.e. IBM, SUN, WINDOWS and HP) environment
• Responsible for installation, configuration, support and troubleshooting of UNIX/Linux and Windows servers including Red Hat, Suse, and CentOS Linux, and AIX
• Responsible for installation, configuration, support and troubleshooting of various supporting software/tools (i.e. EMC ODM/PowerPath, HBA/Fiber Adapter firmware, Backup software, SSH/SSL/SUDO, ODM definitions etc.) and O/S on existing and new systems in AIX 5.x/6.x.
• Installed configured, upgraded and supported HMC code 4.x/5.x/6.x/7.x and upgraded system Firmware using WebSM.
• Administration of multiple IBM Frames/Systems (IBM Power 5/6/7 570/770/595/795 ) with large number of LPARs, VIO environment using HMC and IVM.
• Created new VIO Server and virtualized client partitions (LPARs) with NPIV, configured shared Ethernet adapter, Installed OS and performed network configuration.
• Duties also includes creation, implementation and follow standard processes (Change Management processes and procedures), plan effectively to complete tasks on schedule, and clearly documented results
• Worked with IBM, SUN, EMC and other third party vendors to resolve different issues related to AIX/Linux O/S.
• Worked using SMITTY, diag, ASMI, Command line, LVM (Logical Volume Manager) and other management tools.
• Supported Oracle, Cache, and MySQL database applications.
• Installed and supported Java, Perl, Glassfish, OpenSSL, OpenSSH, and other software
• Worked in the Active Directory (AD) environment
• Experienced in VMware vSphere and vCenter
• Upgraded multiple AIX servers, added extra hard-drive to the AIX Server and used the logical volume manager (LVM) to create a volume group, which was then partitioned into logical volumes
• Provided technical support for hardware diagnostics and troubleshooting on IBM/AIX platform Printers
• Provided production support in an on-call rotation environment

Confidential, Oakland, MD

System Admin

Responsibilities:

• Performing daily administration of Red Hat Linux 6.5, Suse Linux 10/11, and AIX 5.3/6.1 and troubleshooting server issues.
• Responsible for installation, configuration, support and troubleshooting of UNIX/Linux and Windows servers including Red Hat, Suse, and CentOS Linux, Windows, and AIX
• Excellent knowledge and experience of using VMware vSphere
• Performed day to day activities using Yast, smit and command line.
• Supporting and managing IBM pseries servers (P5/P6 and P7) using HMC version 6 and 7
• Upgrade of AIX TL and SP to latest level using NIM server, NFS mount and alt disk
• Upgrade and patching of Red Hat, CentOS, Suse Linux servers
• Supporting and troubleshooting issues related to Production, Dev and Test Environment.
• Upgrade of managed machine and devices’ firmware/microcode.
• Involved in supporting and configuring on Oracle and, MySQL database applications.
• Performing administrative tasks like creating and managing new users, groups, assigning permissions and managing quotas.
• Worked with SAN, EMC Symmetrix, CLARiiON disks, configuration,installation of EMC ODM and Power path.

Confidential, Milpitas, CA

Unix/Linux Admin

Responsibilities:

• Performed day-to-day support on AIX, Linux, Solaris and Window systems
• Software and Hardware upgrades of IBM AIX, Linux Red Hat, and Linux Suse
• Configure, monitor print queues and troubleshoot related issues on the AIX server
• Mounted file systems, directories and file creation and set the securities in AIX and Linux
• Monitor, diagnose and address UNIX and Windows alerts with 24x7 support using HP OpenView and CA Unicenter monitoring tools.
• Performed Mirroring, Disk management, File System Management, User & System Resource management, Paging Space management, job scheduling, SAN disk allocation and other duties as required.
• Performed disk wipe using different procedures for data security.
• Participated in problem identification/resolution process and performed root cause analysis on O/S related incidents.
• Support on critical issues, troubleshoot, log service request, take snap/emcgrab upload to vendor site for analysis and advanced support.

Confidential

System Administrator

Responsibilities:

• Installation, Configuration, Administration & Trouble Shooting of Solaris, Linux and AIX Operating system.
• System builds from the scratch for UNIX and Linux system using manual and automated installation.
• Supported mid range infrastructure specifically IBM AIX environment running on pseries
• Create standard LPAR, performing DLPAR operations to manage recourses between machines
• Installed AIX 5.3 and 6.1 using Media and mksysb using NIM servers.
• Back up of HMC critical console data, LPARs profiles, system backup of virtual I/O servers and clients.
• Installed LINUX on different platforms including 86 series and IBM p seriese
• Configure SAN storage on dual VIO servers, assigned to clieant partition, configured and created volume group and filesystems for application and database team.