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Aix/linux Admin Resume

PA

SUMMARY:

  • Extensive experience as a AIX/LINUX System Administrator including high working knowledge of Power HA (HACMP), LPARs/DLPARs, VIOs, and HMC.
  • Extensive experience in Administration of AIX 5.1, 5.2, 5.3, 6.1, 7.1, 7.2.
  • Experience in creating and managing LPARs on different IBM servers like p5, p6, p7, p8.
  • Experience in installation, configuration, Troubleshooting and administration of AIX 6.1, 7.1 && 7.2.
  • Experience in build, performance, troubleshooting and Maintaining AIX and security Patching.
  • Hands - on experience with installing AIX on LPAR, VIO server and client using NIM.
  • Experience with SMIT, LVM (Logical Volume Manager), and Mirroring, User & System Resource management, Paging Space management and job scheduling.
  • Design, build, install and configure Red Hat Enterprise Linux servers & workstations.
  • Expertise in building servers using Kickstart/PXE booting for Linux, Jumpstart for Solaris.
  • Configuration, tuning, security, backup, recovery, monitoring and upgrade of Linux 5, 6 (RHEL) and Solaris on different cross platforms.
  • Good understanding of error logging subsystem and Performance Monitoring tools like topas, vmstat, iostat, sar, netstat on AIX.
  • Installation, administration and configuration of VIO Server and VIO client LPAR’S through HMC.
  • Preparation of Logical Valume Manager (LVM) with new san luns, LUN online migrations using pvmove and LV mirror commands on linux servers.
  • Create and administer RedHat Enterprise Linux operating systems to implement on the existing network.
  • Extensive experience in Multipath and Bonding in Linux.
  • VMware Installation, configuration and administration, virtual environments with 5x VirtualCenter 5x.
  • Familiar with shell scripts to run on Linux and Solaris environment for administration.
  • Adept at monitoring and managing file system usage, hardware and system process failures
  • Experience in performing DLPAR on VIO servers.
  • Sharing physical FC adapters to different LPAR’s through VIO server using NPIV and to ensure the LUNs are allocated successfully on the client LPAR’s.
  • Experience in IBM HACMP, POWER HA Cluster & working with the application team to ensure the applications start/stop without any failure in case of event failures.
  • Expert in Power HA migrations from different versions in different methods.
  • Experienced in administrating the POWER HA clusters like increasing the clustered filesystems and replacement of hardware dynamically in POWER HA cluster.
  • Experience in working with Shared Ethernet Adapter, Link Aggregation and NPIV concepts associated with VIO server technology.
  • Designed & built a five node HACMP cluster from scratch and added nodes to two different existing clusters.
  • Performance Tuning and Capacity Planning and evaluating products in UNIX area.
  • Worked 24X7 and on-call in production support and trouble shooting on AIX pSeries servers.
  • Good working knowledge on IBM HACMP 5.x and NIM Master and Clients.
  • Installed the REDHAT 5.0/6.0/7.0 operating system and set up the Oracle environment using ansible.
  • Setting up the playbooks like creating directories, working on copying files to remote servers, changing directory permissions using Ansible.
  • Deployed playbook for patching all the servers (Prod/Dev/QA) through ansible which occurs bi-weekly.
  • Created a repository on GitHub and connected with local and server for developer to maintain the application code on local.
  • Excellent presentation, analytical, documentation and interpersonal communication skills.

TECHNICAL SKILLS:

IBM AIX: (5.1 5.2, 5.3,6.1, 7.1), CentOS 6/7, RHEL 6/7, IBM Netezza, Windows 2000/NT4.0

Hardware: IBM RS/6000, p5 520,560,561,570,590,595 p6 570,590, p720, p740, p8 IBM Blade Server JS20,JS21 SUN E-3000/4000

Networking: TCP/IP, DNS, DHCP, SNMP, SMTP.

RDBMS: DB2, Oracle 8.0, 9i

Programming Languages: Java, Java Servlets, EJB, VB, JavaScript, HTML, XHTML, DHTML Perl Shell Korn, UNIX.perl.

Domain Knowledge: Retail, Consumer Goods, Insurance, Electronics, Media and Information, Information Technology

Ansible, Go: CD

Third Party Tools: Logical Volume Manager, VSphere, GITHUB

PROFESSIONAL EXPERIENCE:

AIX/LINUX Admin

Confidential, PA

Responsibilities:

  • Builds, Install, configure brand new virtual and physical servers, test, and deploy RHEL 6 and 7, AIX 6 and 7.
  • CentOS 6/7 servers to the network, OS installation and configuration - standard and advanced (net installation and jumpstart, kickstart).
  • Creation of virtual machines and installation of RedHat/Centos on them.
  • Setup Docker on Linux and configured Go-CD to run under Docker host.
  • Experience on working on Configuration Management Tools like GIT and used Source code management client tools like Ansible, GitHub.
  • Have good knowledge and solid understanding of DevOps and continuous delivery tools such as Ansible etc.
  • Setting up the playbooks like creating directories, working on copying files to remote servers, changing directory permissions using Ansible.
  • Deployed and tested playbooks in Docker containers before pushing changes in Git.
  • Deployed playbook for patching all the servers (Prod/Dev/QA) through ansible which occurs bi-weekly.
  • Performance monitoring and capacity management on RedHat Linux servers.
  • Involved in the administration of backup on the RedHat Linux servers.
  • Installed the REDHAT 5.0/6.0/7.0 operating system and set up the Oracle environment using ansible.
  • Installation, Performance Tuning, Support and Patching Linux RHEL/AIX/CentOS
  • Setup NFS File Systems and shared them for Clients, Maintenance of NFS Server with Auto Mounts.
  • Created a repository on GitHub and connected with local and server for developer to maintain the application code on local.
  • Installed NetApp (NAS) cluster with redundant network links and working fail-over configuration.
  • Responsible for data management using RedHat and CentOS utilities for archiving, compression backup and restore.
  • Participating in root-cause analysis of recurring issues, system backup and security setup.
  • RPM and YUM package installations, patch and other server management.
  • Experience in creating VMware templates and cloning VMs.
  • Expert in Installation, Configuration of Package and Patch Management.
  • Responsible for making LPAR and DLPAR through HMC and Installing AIX on the logical partitions.
  • Experience in host based migration from one storage array to another.
  • Experience in using Powerpath. MPIO for SAN migration.
  • Worked in NFS/NAS, Storage Area Networks (SAN), and SSA disk storage environment.
  • Creating and mapping virtual HBA on VIOServers on pSeries frame and mapping them to Client.
  • Experience for mirroring and un-mirroring using logical volume manager (LVM).
  • Experience for migrating using logical volume manager (LVM).
  • Experience in host based migration from VSCSI to NPIV.
  • Experience in determining the storage and requesting for new LUNs for host based migration.
  • Configured SAN Storage for AIX Servers.
  • Experience in dual VIOS VSCSI mapping.
  • Experience in NPIV mapping.
  • Managing Linux Infrastructure involves day-to-day maintenance of servers and troubleshooting.
  • Micro partitioning configured CPU, memory, IO, Virtual adapters, disk, performed DLPAR operation and VLAN tagging.
  • Efficiently innovating open-source infrastructures via inexpensive materials.
  • Objectively integrate enterprise-wide strategic theme areas with functionalized infrastructures. Interactively productize premium.
  • Rapaciously utilize enterprise experiences via 24/7 markets.

Environment Hardware: IBM - p5-520, p5/p6-550, p5/P6-570, p5/p6-595, p7-750, p8

O/S: IBM AIX 5.1, 5.2, 5.3, 6.1, 7.1, 7.2, RHEL 6/7, CentOS 6/7, VIO 1.3, 1.5, 2.1

AIX Administrator

Confidential, WA

Responsibilities:

  • Administered multiple IBM power7/6/5 p520s, p550s, p570s, p595s, p760s, p770s running AIX 5.3/6.1/7.1
  • Co-ordinated application team to Upgrade AIX 5.2 to AIX 5.3, AIX 5.3 to 6.1, AIX 6.1 to 7.1
  • Design, build, install and configure Red Hat Enterprise Linux servers & workstations.
  • Administrating and managing windows servers including configuration and troubleshooting of Active
  • Directory, DNS, DHCP, IIS.
  • Configured Microsoft Active Directory domains.
  • Management of Active Directory users on Windows Server 2003.
  • Worked on Linux x86, Windows 2003 Advance Server, Samba, Squid, Active DirectoryCreate and administer
  • RedHat Enterprise Linux operating systems to implement on the existing network.
  • Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment
  • Migrated Linux based machines and Power off Machines to virtual machines using VMware converter boot CD.
  • PowerHA 6.1 and 7.1 or Cluster Node or later - HACMP
  • Creating and building AIX LPAR by PowerVM Tool
  • Used shell scripting (Including Korn, Bash and Perl) for system/application in automating server task, installing and monitoring applications and data feeding file transfer and log files.
  • VIO mapping by Power VM Tool kit
  • Good knowledge on BMC Blade Logic Console
  • Worked on IBM Frames p740, p750, p770
  • Started working on POWER 8 Frames - see difference between P7 and P8
  • Creating and building AIX LPAR Manually via NIM servers
  • Installing security filesets like Centrify, nmda and networker, invista, DS agents, Petrol Agents
  • Building LPAR using NIM server
  • Performed 6.1, 7.1 AIX OS Installation manually and through Blade-logic Console
  • LPM and troubleshooting the encountered erros
  • AIX 6.1 patching --TL06 to TL08
  • Worked on migrating data from old storage array to new one. Extensive use on powerpath implementation.
  • EMC DMX -4, VMAX, VNX 7500, 5700, 5300 System administration
  • Migrated data from Clarion, Symmetrix DMX3 and DMX4 to VMAX.
  • Worked on EMC DMX -4, DMX -3, VMAX, 6633, System administration.
  • Audit job after Installation of AIX and rectify the errors
  • Building VIOs Manually
  • Ensure Security Issues as per the policy and resolve it, if any
  • Assign good Paging Space to the servers
  • Logical Volume Partition according to client requirement
  • Shell Shock patching through Blade Logic
  • NPIV configuration
  • PowerHA 6.1 and 7.1 or Cluster Node or later - HACMP
  • GPFS installation and configuration changed Dynamic CPU and Memory and troubleshooting it

Environment Hardware: IBM - p5-520, p5/p6-550, p5/P6-570, p5/p6-595, p7-750

O/S: IBM AIX 5.1, 5.2, 5.3, 6.1, 7.1, Linux, VIO 1.3, 1.5, 2.1

AIX/LINUX Admin

Confidential, MI

Responsibilities:

  • Responsible for Installation, Configuration Management, Maintenance and Systems Development of AIX Systems.
  • Installing, upgrading and administering the (RHEL 4.x, 5.x, 6.x) server.
  • Provided 24x7 on call server support for UNIX environment including AIX, Linux, HP-UX, and Sun Solaris.
  • Provided 24x7 supports on shift rotation basis.
  • Configured IBM P-series 570,550 and RS 6000 machines for production and test environments.
  • Installed, configured and tested Logical Partitions technology (LPARS
  • Experience in LPAR planning and virtualization
  • Installed and configured VIO server via HMC
  • Configured and troubleshoot routers like Cisco 2600, and LINKSYS RV016 VPN router.
  • 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.
  • 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.
  • Configured Work Load Management (WLM) for IBM 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 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.
  • Installed and configured Sudo for users to access the root privileges.
  • Applying software maintenance, program fixes and keeping the system software releases current.
  • Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.
  • Configured cascading, mutual takeover and rotating modes of operation of the HACMP and HACMP/ES products.
  • 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 Oracle10g on Linux for the development team.
  • Wrote shell scripts for automated installations, to extract logs.

Environment: IBM pSeries 550, 570,590, 595, AIX v5.2/5.3/6.1, Linux,VIOS, LPAR, HACMP V5.2/5.3, Windows 2000, Oracle 9i,Oracle 10

AIX/Unix/Linux Administrator

Confidential, CT

Responsibilities:

  • Responsible for Installation, Configuration, Support and troubleshooting existing systems in AIX 5.2 and 5.3 operating environment
  • Installed, maintained and upgraded Redhat Linux using kickstart based network installation.
  • Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment
  • Setting up NIM servers and clients for New & Complete Overwrite/Migration Installation management and Nimadm Upgrade.
  • Installation of RHEL on the IBM blades, X series (3850’s and 3650’s),and on Dell Power Edge servers (1950,2950,2900)servers either by ISO boot or PXE boot using the kickstart server
  • Installation of RHEL on IBM Bladeservers HS21 and JS22
  • Day to day support and troubleshooting of RHEL
  • Performed basic Troubleshooting.
  • Micro partitioning, PowerVM. VLAN tagging, NPIV and other virtualized operations of Power Series systems.
  • Creating the Linux file system.
  • Updated the Linux Kernel from an RPM.
  • Experienced in performing TL upgrades applying service packs on AIX 5.3/5.2 through
  • Logical Partitions of VIOS and VIOC on Blade server and pSeries frame
  • Working on Veritas Volume Manager
  • Installation of veritas volume manager on sun solaris operating system,
  • IBM’s SVC and DS series, Power Path installation and involved in Storage Area Network (SAN) administration.
  • High availability setup for two different clusters.
  • Performed various methods of AIX Installation/Migration using alternate disk installation (NIMADM), Network Installation Manager (NIM).
  • Provided 24x7 on call server support for UNIX environment including AIX, Linux.
  • Breakfix for HACMP.
  • Have upgraded servers from AIX 5.1 and 5.2 to 5.3.
  • Configuration management including the building of LPARs using HMC and configuring the hardware devices that support them.
  • Extensively used LVM - created VGs, LVs & disk mirroring for IBM p-series servers.
  • Experience in studying the kernel performance issues using various utilities like topas, vmstat, svmon and iostat.
  • Capacity planning of disk space and hardware resources required for production and developments.
  • Responsible for migrating and decommissioning of the system.

Environment Hardware: IBM RS/6000 - p5-550, p5-590, p5-595.M4000, M5000, T5220, T5240

O/S: IBM AIX 5.2 / 5.3.Solaris, 9.10

AIX Administrator

Confidential

Responsibilities:

  • Worked with 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 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
  • 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 the migration team for migration from AIX 4.3.3, 5.1 to 5.2 and 5.3.
  • 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.
  • Installing, upgrading and configuring Redhat Linux ES 4.x/5.x using kickstart installation
  • Setup cron jobs schedules for various backup and monitoring tasks. supported with 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 the client’s requirement.
  • Performed extensive Logical Volume Management (LVM) tasks.
  • Installed and configured Sudo for users to access the root privileges.

Environment: IBM RS/6000, p670, p5-570, p5-595 O.S: IBM AIX 4.3.3, 5.1, 5.2 and 5.3

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