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Aix Administrator Resume

Columbus, OH

TECHNICAL SKILLS

Languages: C, C++, Java, Servlets, Jsp, EJB, VB, JavaScript, HTML, Perl and Shell programming.OS Confidential AIX (5.0), Linux (Redhat, SUSE), Windows 2000/NT4.0, Sun Solaris. MAC8.1/9/10 and OS2.

IDE: VisualAge3.5/4.0, WebSphere Application Studio4. JBuilder, Code Warrior, ClearCase, ClearQuest and RationalRose.

Web Technologies: HTML, DHTML, XML, Java Script, JSP, Servlets, EJB.

Web/Application Servers: WebSphere Application Server 3.5/4.0, Netscape/iPlanet ServerMQSeries, WebLogic Server, Confidential HTTP Server.

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.

Other Skills: HACMP, Samba, Tivoli (TSM), Veritas NetBackup

PROFESSIONAL EXPERIENCE

AIX Administrator

Confidential - Columbus, OH

Responsibilities:

  • Responsible for maintaining 950 AIX Servers and 800 Solaris servers.
  • Building servers depending on the requirement of the application.
  • Building of VIOs and VIO LPAR's on p-series 770, 795, 595, 590, and 505 servers.
  • Upgrading Technology level (TL) and upgrading and installing db2 fix pack.
  • Installed Security Fixes and APAR's.
  • Installing Tivoli on AIX Lpars.
  • Installing MQ Client on lpars.
  • Strong understanding of networking concepts and implementation of linux-based infrastructure solution.
  • Possess excellent knowledge of linux
  • Worked on ESM (Enterprise Security Manager) and remediate different kind of security violations.
  • Evaluate and install new software-related problems as well as perform system backup and recovery on linux servers.
  • Used Peregrine and Service Now ticketing tool for Steady state issues.
  • Used ESM (Enterprise change management) for change management.
  • Running Production readiness check list on the Lpars to see if it is ready for Release.
  • Worked on P1S3 issues very closely with customer to solve performance issues like paging space, CPU, memory. Used Nmon analyzer, TOPAS, vmstat for analyzing performance of the machine.
  • I supported Oracle/db2/DBA database/application.
  • Depending on the requirement of the application I create prime request (SAN request) and attach disk to the lpars.
  • Helped db2 team to upgrade dblevel.
  • Worked on HACMP System Administration problem determination, planning and implementation.
  • Created LVM (Logical volume management) i.e. Volume groups, Logical volume and File system then giving wnership and permissions to the filesystems.
  • Changed and modified entitlement and memory on the lpar through HMC (Hardware management console),
  • Upgraded HMC from 7.0 to 7.3.
  • Upgraded the HMC V6 to HMC V7 (GUI)
  • Building of new VIO Servers and clients from p-series p550, p590, p795 using HMC.
  • Setup and configure TCP/IP.
  • Worked on SAN storage.
  • Creating SEA "shared Ethernet adapter" to bridge between Ether Channel and Virtual Ethernet Adapters.
  • Restoring the mksysb (operating system) from NIM server (Network Boot).
  • Installed ESM (Enterprise security management) Tivoli on Aix, Linux and Solaris servers.
  • Worked on creation of users and group i.e. worked as User administrator.
  • Installed and configured Tivoli monitoring (ITM5 & 6) on AIX.
  • Worked on TSM backup related issues.
  • Used Brews for checking netbackup status of file systems on tapes.

AIX Administrator

Confidential - San Jose, CA

Responsibilities:

  • Responsible for Steady State Team With more than 800 servers.
  • Provided 24x7 supports on shift rotation basis.
  • Configured Confidential p5, B80, RS6000, 520, 550, 570, 590, 595, 610, 690, 695 for production, staging and test environments.
  • Installation and configuration of LPAR's with AIX 5.3, 6.1 on p5 servers.
  • Installation and configuration of VIO Server with AIX 5.3 on client LPAR's on 520 and 570 models.
  • Created linux menu system for both installation options end restores options.
  • Installed, configured and maintained two test lab environments.
  • Responsible for evaluating, defining, gathering, testing and delivering Linux platform solutions.
  • Implements and managing resources in VIO server for client Lpar's
  • Managed Red hat linux and VMware ESX servers.
  • Extensively used LVM, created VGs, LVs, and disk mirroring.
  • TL upgrades from TL03 to TL05, TL07
  • Server migrations, tsm upgrades, SDD upgrades from AIX 5.2 to 5.3
  • Responsible for Installing Security fixes and APAR's in Servers.
  • Installation and upgrade of OpenSSH 4.3p1 on AIX 5.2 and 5.3, OpenSSH 4.1p1 on AIX 5.1, 5.2, 5.3 servers.
  • I used to support Oracle team and build servers depending on there specification.
  • Migrations of AIX BOS from 4.3 to 5.1, 5.1 to 5.2 and 5.3
  • Migration of HACMP (Online and Offline) from 4.5 to 5.1, 5.1 to 5.3
  • Sound Knowledge of HACMP troubleshooting and dealing with day to day problems.
  • HACMP Install, troubleshooting and admin.
  • Installation and configuration of NIM master server and clients.
  • Creating lppsource and SPOT for client on NIM server.
  • Installing OS on NIM clients using NIM Server.
  • Worked with the SAN team to increase disk on lpars.
  • Configuring LUN's on AIX side with SAN arrays Confidential Shark and HITACHI using DPO and HDLM software
  • Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount p ints for Server directories, and mounted these directories on AIX Servers.
  • Worked on TSM monitoring tools.
  • 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.
  • Worked on performance and monitoring tools for the tuning of processor, memory and I/O.
  • Clustered multiple RS/6000 machines on AIX 5.1/5.2 using HACMP, configured HACMP cluster to keep applications running.
  • Configured cascading, mutual takeover and rotating modes of operation of the HACMP and HACMP/ES products.
  • Performing Failovers in HACMP / cluster environment, monitoring servers.
  • Installed and configured AIX 4.3, 5.0, 5.1 on p5, B80, RS 6000, 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 Servers within a High Availability system using DASD,
  • DCE and DFS services.
  • Installed and configured DCE and DFS services.
  • Backing up AIX servers using mksysb and ADSM/TSM using Confidential 3494 automatic tape libraries and recovering.
  • Backup / Restore planning and implementation.
  • Installed VIO server advanced power virtualization on Confidential p5 system.
  • Taking the mksysb of the NIM client on the NIM master.
  • 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.
  • Clustered multiple p series machines on AIX 5.3 using HACMP.
  • Wrote shell scripts for automated installations, to extract logs.

UNIX System Administrator

Confidential - San Jose, CA

Responsibilities:

  • Responsible for Remote support of AIX servers in State Farm ISA Team With more than 1300 servers.
  • Provided 24x7 supports on shift rotation basis.
  • Configured Confidential p570, 590 for production, staging and test environments.
  • Installation and configuration of VIO Server with AIX 5.3 on client LPAR's on 520 and 570 models
  • Implements and managing resources in VIO server for client Lpar's
  • Installation and configuration of LPAR's with AIX 5.3 on p5 servers.
  • Implemented ESR 7.1 and 7.2 in State Farm environment.
  • Extensively used LVM, created VGs, LVs, and disk mirroring.
  • Responsible for Installing Security fixes and APAR's in Servers.
  • Mentored product architects on Linux kernel building and maintenance.
  • Designed and built Linux based routers and firewalls.
  • Migration and upgrade from AIX 5.2 to AIX 5.3
  • Worked with Samba, Red Hat and caldera Linux.
  • Worked on performance and monitoring issues.
  • Worked in the environment of SAP and also DB2.
  • Migration and upgrade from HACMP 5.1 to 5.3
  • Installation and configuration of NIM master server and clients.
  • Creating lppsource and SPOT for client on NIM server.
  • Installing OS on NIM clients using NIM Server.
  • Installed and configured Print servers
  • Troubleshooting and implementing mksysb daily backup through cron and manually.
  • Implementing and troubleshooting AIX part of SAN,
  • Adding LUN's, troubleshooting Fibercard adapters for Hitachi and HP SAN arrays
  • Extensive use of HMC version 4 and 5 for installing and configuring Lpar's on p5 520,570 models
  • 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.
  • 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.
  • 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.
  • Clustered multiple p5 520 machines on AIX 5.1/5.2 using HACMP, configured HACMP cluster to keep applications running.
  • Good understanding of NIM server installation and management.
  • Configured cascading, mutual takeover and rotating modes of operation of the HACMP and HACMP/ES products.
  • Maintained HACMP Clusters.
  • Performing Failovers in HACMP / cluster environment, monitoring servers.
  • Installed and configured AIX 4.3, 5.0, 5.1 on p5, B80, RS 6000, 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 Servers within a High Availability system using DASD,
  • DCE and DFS services.
  • 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.
  • Developed Korn and Bash shell-scripts to automate routine activities.
  • Wrote shell scripts for automated installations, to extract logs.

AIX Administrator

Confidential - San Jose, CA

Responsibilities:

  • Responsible for AIX Team With more than 800 servers.
  • Provided 24x7 supports on shift rotation basis.
  • Configured Confidential p5, B80, RS 6000, for production, staging and test environments.
  • Installation and configuration of LPAR's with AIX 5.3 on p5 servers.
  • Rebuilding infrastructure of the environment.
  • Extensively used LVM, created VGs, LVs, and disk mirroring.
  • Responsible for Installing Security fixes and APAR's in Servers.
  • Installation and upgrade of OpenSSH 4.3p1 on AIX 5.2 and 5.3, OpenSSH 4.1p1 on AIX 5.1 servers.
  • Installation and configuration of NIM master server and clients.
  • Creating lppsource and SPOT for client on NIM server.
  • Installing OS on NIM clients using NIM Server.
  • Worked with DB2 team to manage filesystem, lvm and upgrade db2level.
  • 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.
  • 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.
  • 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 Websphere Application Server.
  • Clustered multiple RS/6000 machines on AIX 5.1/5.2 using HACMP, configured HACMP cluster to keep applications running.
  • Configured cascading, mutual takeover and rotating modes of operation of the HACMP and HACMP/ES products.
  • Performing Failovers in HACMP / cluster environment, monitoring servers.
  • Installed and configured AIX 4.3, 5.0, 5.1 on p5, B80, RS 6000, 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 Servers within a High Availability system using DASD
  • DCE and DFS services.
  • Installed and configured DCE and DFS services.
  • 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.

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