SUMMARY

• Over 10+ years of experience in technical support and maintenance of networks.
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of Confidential AIX, Linux (RedHat & SuSE),Windows 2003 server
• Expertise in Administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1, 7.1.
• Installation/Administration of AIX on RISC servers running on a LAN with full setup of network services and protocols, ensuring the proper implementation of the TCP/IP Stack, and ARP/RARP routing, and network functionality
• Configured and Administrated HACMP 4.5,5.1,5.2
• Migrated from HACMP 4.3 to 5.1 and from HACMP 5.1 to 5.2
• Configuring and administration of weekly mksysb backup on AIX servers.
• Installation of patches, Security fixes, packages on AIX, Linux and Windows NT/2000 Servers
• Installation, Configuration and administration of LPAR’s.
• Installation, administration of VIO Server and VIO client LPAR’S.
• Configuring and administration of NFS server and NFS client.
• Configuration and administration of Fiber Adapter’s and handling AIX part of SAN.
• Installed and Configured Web Sphere Application Servers on Linux and AIX.
• Installed and configured Confidential Web Sphere Application Server 3.5/4.0/5.0 on AIX and Linux.
• Performed NT and UNIX Network System Administration, including adding NT and NIS domains, creating new users and groups with multi - levels of security, creating assign file attributes & permissions, defining network protocols, insuring TCP/IP and router connectivity
• Installed and Configured DB2 on AIX OS Server
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environment.
• Migrating AIX OS from AIX 4.3 to 5.1, 5.2 and 5.3 on 520, 550, 610, RS/6000 Servers
• Administering and troubleshooting of AIX HACMP Clusters
• Installation, configuration and administration of Confidential Web Sphere Application Server V4.0, on AIX along with DB2 UDB & Confidential HTTP server with SSL for secure communication & providing technical support to users
• Experienced and familiar with tools like SMIT and SMITTY
• Installation and support of Apache Web Server, Confidential HTTP Web Server, Oracle 8i/9i, SQL Server on Windows and UNIX
• Experienced in implementing the workload Management (WLM) using cloning and clustering
• Experienced in writing scripts such as Korn Shell (ksh) and perl
• Experienced in DNS, NIS, NFS, LDAP, sendmail, ftp, remote access, security management, and system troubleshooting skills
• Excellent client relation skills and the drive to complete tasks effectively and efficiently where customer services and technical skills are demanded as well as the ability to communicate effectively with all levels of management and the client community

TECHNICAL SKILLS

Operating Systems: Confidential AIX 5L, 5, 1, 5.2,5,3, Linux (Redhat, SUSE 10), Windows 2000/NT4.0, Sun Solaris. MAC8.1/9/10 and OS2.

Hardware: Confidential RS/6000, pSeries 630, 650, 660, 670, 9118, SUN Enterprise 450,N3300,N3700,N5200 and DS3200

Web/Application Servers: WebSphere Application Server 3.5/4.0, Netscape/iPlanet Server, MQSeries,WebLogic Server, Confidential HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, LAN.

RDBMS: Confidential UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95

Programming Languages: C, C++, Java, Servlets, JSP, EJB,VB, JavaScript, HTML, Perl and Shell programming.

Applications: HACMP, Tivoli (TSM), Veritas NetBackup,HMC

PROFESSIONAL EXPERIENCE

Confidential, Dubuque, IA

AIX/Unix Administrator

Responsibilities:

• Administrator of Unix, AIX, Sun Solaris, SAN, Linux, Confidential -UX and Windows Server systems.
• Worked with Confidential pSeries p520, p550, 590, p750 & Confidential X series and Blade Servers.
• Performed migrations with the TL upgrade as part of data center optimization
• Created and Managed LPAR's, Dynamic LPAR on different Confidential servers like p550, p570, p590, p595, p630, p650, p670, p690 and p770.
• Responsible for NIM installation, setting up NIM servers, clients, define the resources, Alternate Disk Migration with NIM.
• Installed, upgraded and configured Solaris 10/9/8, RHEL 5.x/4.x/3.x, AIX and Suse Linux. This included JumpStart Installation, Kick-start Installation, NIM and CD media.
• Capably handled UNIX administration experience using operating systems like Red Hat Linux Versions 5& 6
• Actively supervised & provided resolutions of breached jobs with 1nd & 2rd line support groups
• Worked on critical project for core banking and New servers built and decommissioned of server project
• Provided 24/7 on call support on Linux/AIX Production Servers. Responsible for maintaining UNIX security on Solaris and Linux.
• Worked in Server migration/Data Center move projects in various stages for all Linux & Aix Servers.
• Installed RHEL 4 and RHEL 5 and updated the versions within the release.
• Migrated
• Installed Patches/Packages on and Solaris Servers and RPM packages on Linux Servers.
• Management of UNIX user accounts, groups, directories and file permissions.
• Administration of RHEL 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installation, configuration, administration of Solaris 9, 10 on SPARC based servers using Jumpstart.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 4.1 and migrating servers between ESX hosts.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Installation of Solaris 9, 10 on Sun Fire and Enterprise server using Jumpstart, custom configuration like installing packages, configuring services.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Installed and configuration of VxVM, VxFS and VCS on various Servers.
• Installed Patches/Packages on and Solaris Servers and RPM packages on Linux Servers.
• Management of UNIX user accounts, groups, directories and file permissions.
• Administration of DHCP Server to get the IP Addresses Dynamically.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS+, Sendmail and Weblogic in Solaris and Linux.

Confidential, Troy, MI

AIX Engineer

Responsibilities:

• Built and Created Several LPARs on P750s using VIO Server and HMC.
• Decommissioned many LPARs on Power 5 590s and reclaimed lots of storage in an effort of Unix to Linux project
• Performed System Firmware upgrades and Device Firmware upgrades on my Power 6 and Power 7 Servers
• Configuration management including the building of LPARs and configuring the hardware devices that support them.
• Firmware upgrade on AIX 5.2 and 5.3 servers and 4 port and 6 port Elmo and Zoi Nortel switches
• Involved in daily support of AIX/Linux blade servers.
• Used the LVM extensively, Created/Modified/Deleted Volume Groups, Logical Volumes and File systems; Added/Removed physical disks; Mirrored Volume Groups and Logical Volumes.
• Worked on upgrading Maintenance level on AIX blade servers.
• Maintained and edited the Maintenance level script as per the customer requirements
• Generated system dump to determine the reason for system crash.
• Ran file system corruption checks on files of Root and storage volume groups
• Upgraded the NIM Servers and its resources
• Performed Alt disk Migrations from 5.3 to 6.1
• Wrote new Korn (ksh) and Perl scripts and updated the existing scripts for day-to-day maintenance.
• Worked on various projects for adding raw spaces and increasing the file systems size using scripts.
• Implemented Crontabs, Shell Scripts for automatic back -up.
• Design and implemented SMIT configuration screens
• Worked with the Confidential technician to configure the Management Module and updating the firmware.
• Involved in projects to install and validate new AIX and windows blades.
• Worked on various networking issues involving Nortel and Cisco switches
• Performed switch retrofit procedures on the Nortel switches and the blades.
• Worked with Network engineering on resolving communications issues on the blades, switches and Cisco switches.

Confidential, TX

AIX System Admin

Responsibilities:

• Responsible for creating LPARs//VIOs.
• Worked on conversion of blade servers from Confidential to SUSE Linux and Confidential blade JS20 to JS12
• Installation, configuration, support and administration of Unix (Solaris, Confidential -UX, AIX) and Linux Servers.
• Worked on upgrading system board, Nic and SAS daughter card firmware for Confidential blade servers.
• Worked on configuring the 4 and 6 port Nortel switches and upgrading the firmware.
• Supporting DBA team in maintaining database instances with Informix database.
• Administration of INFORMIX on UNIX.
• Uploading and Down loading files between Remote & Local servers using secure shell.
• Troubleshooting issues concerning storage and backups.
• Backing up AIX servers using mksysb and ADSM/TSM using Confidential 3494 automatic tape libraries and recovering.
• Support the day to day operations of a TSM environment to include tape library management.
• Worked on TSM server/client management, perform restores per customer requirements.
• Monitor nightly backups, monitor problem ticket queue, and monitor TSM server health.
• Performed disaster recovery to restore AIX/Linux servers in the TSM environment.
• Installed clusters on Windows 32 bit TSM client
• Troubleshooting various issues related to windows blades.
• Updated dataontap OS level on controllers, trouble shooting iscsi communication between AIX machines and storage
• Upgraded the firmware level on AT-FCX modules.
• Performed data migration tasks from source box to storage device, by running scripts provided by storage team, trouble shooting any issues encountered during migration process.
• Trouble shooting various issues for Windows and pics blades
• Configured the RAID array for windows and pics blades.
• Monitored the problem ticket queue and resolving the issues
• Trouble shooting overtemp errors on the filers.
• Troubleshooting communication issues with the filers
• Supported hardware management console (HMC version 6 and version 7)
• Created LPAR’s profiles using HMC version 7
• Upgraded HMC from version 6 to version 7
• On call support on rotation basis.

Confidential - Tulsa, OK

AIX/UNIX Administrator

Responsibilities:

• Installed and upgraded operating system AIX 5.1/5.3 to AIX 5.3.
• AIX Systems Admin for over 100 LPARS which include AIX 5.2 / 5.3 / 6.1 / 7.1.
• 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
• 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.

Confidential - Bloomington, IL

AIX/Unix Sys Administrator

Responsibilities:

• Configured Confidential RS 6000,550,520,610 machines for production, staging and test environments.
• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on AIX Servers.
• Configured and administrated LPARS
• Configured and administrated VIO server and LPAR clients.
• Administration Tasks included User administration, Performance, Sendmail. Weekly mksysb.
• Daily roles included dealing with LVM extensively. Strong hold of LVM.
• Migrated AIX 5.3 with HACMP 5.1 to HACMP 5.2 (online).
• Daily tasks included dealing with AIX side of SAN. Like troubleshooting Fiber card adapter, replacing Fiber card adapters. Configuring LUN’s back.
• Setup of full networking services and protocols on AIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Dealing with user id deletion with removing entries from CRONTAB.
• Performing Failovers in HACMP / cluster environment, monitoring servers
• Installed and configured AIX 4.3, 5.0, 5.1, 5.2, 5.3 on RS-6000's, creating the root volume group application/backup volume groups, logical volumes, and filesystems (JFS) on RAID Level 5 with appropriate data stripping for protection, and for the optimal performance of the RS-6000 Servers within a High Availability system using DASD, DCE and DFS services.
• Upgrading AIX 5.2, 5.3 from various TL are to AIX 6.1 TL4, TL5, TL6 and AIX 7.1 TL 0.
• Setup of full networking services and protocols on UNIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Backing up AIX servers using mksysb and ADSM/TSM using Confidential 3494 automatic tape libraries and recovering
• Installed and configured Sudo for users to access the root privileges.
• Installed application connectivity software to enable Confidential print services. Configured and administered firewall rules, including the use of SNORT, NMAP to effectively monitor system files, port security, and network traffic activity coming through the firewall.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Migrated database applications from Windows 2000 Server to Linux server.
• Installing and setting up Oracle9i on Linux for the development team.
• Wrote shell scripts for automated installations, to extract logs.

Confidential, Mooresville, NC 

AIX Administrator

Responsibilities:

• Configured Confidential RS 6000,550,520,610 machines for production, staging and test environments
• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on AIX Servers
• Configured and administrated LPAR.
• Configured and administrated VIO server and LPAR clients.
• Administration Task’s included User administration, Performance, Send mail. weekly mksysb
• Daily roles included dealing with LVM extensively. Strong hold of LVM.
• Migrated AIX 5.3 with HACMP 5.1 to HACMP 5.2 (online).
• Daily tasks included dealing with AIX side of SAN. Like troubleshooting Fiber card adapter, replacing Fiber card adapters and LUN’s Configuration.
• Setup of full networking services and protocols on AIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Dealing with user id deletion with removing entries from CRONTAB.
• Installation, configuration and administration of Confidential Web Sphere Application Server V4.0, on AIX along with DB2 UDB & Confidential HTTP server with SSL for secure communication & providing technical support to users
• Installed and configured Confidential Web Sphere Application Server 3.5/4.0/5.0 on AIX and Linux
• Installed and migrated Websphere MQ server for AIX version 6.0.
• Performing Failovers in HACMP / cluster environment, monitoring servers
• Installed and configured AIX 4.3, 5.0, 5.1,5.3 on RS-6000's, creating the root volume group application/backup volume groups, logical volumes, and file systems (JFS) on RAID Level 5 with appropriate data stripping for protection, and for the optimal performance of the RS-6000 Servers within a High Availability system using DASD, DCE and DFS services.
• Designed and configured Ethernet VLAN’s with RS/6000 Confidential Servers, Cisco Routers (2500/2600 series) and Cisco Switches (Catalyst 2912) utilizing RJ45 CAT5 cables for the internal LAN, and a T1 fiber uplink across a Cisco backbone for connection on the WAN.
• Configured Work Load Management (WLM) for Confidential Web sphere Application Server.
• Setup of full networking services and protocols on UNIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Backing up AIX servers using mksysb and ADSM/TSM using Confidential 3494 automatic tape libraries and recovering
• Installed and configured Sudo for users to access the root privileges.
• Installed application connectivity software to enable Confidential print services. Configured and administered firewall rules, including the use of SNORT, NMAP to effectively monitor system files, port security, and network traffic activity coming through the firewall.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Migrated database applications from Windows 2000 Server to Linux server.
• Installing and setting up Oracle9i on Linux for the development team.
• Wrote shell scripts for automated installations, to extract logs.