VINAYKUMAR

AIX/LINUX ADMINISTRATOR

Summary:

*+ years of solid experience in AIX, UNIX and Linux operating system.

Experience in installation, configuration, Troubleshooting and administration of AIX 5L, 6.1 && 7.

Experience in build, performance, troubleshooting and Maintaining AIX and security Patching.

Performing Administration such as Virtualization and logical partitioning of CPU, DLPAR, HMC &IVM usage, VIO concept.

Performing administration on NPIV, by assigning the Virtual Fiber scsiadapters and assigning the LUNS.

LPM administration and performing the operational acceptance test in between the managed system to avoid any point of failures.

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.

Manage multiple mission-critical production two and three-node AIX HACMP clusters for major healthcare provider. Subject matter expert on clustering responsible for restoring service due to failed/unstable cluster nodes.

Expert in Power HA migrations from different version and in different methods.

Experienced in administrating the POWER HA clusters like increasing the clustered filesystems and replacement of hardware dynamically in POWER HA cluster.

Configuring SEA in dual VIO environment for providing continuous availability communication to the LPAR’s.

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.

Exposure in Creation of VSCSI adapter and mapping the disk to client LPARs for the NPIV.

Creating shared processor pools Creation of LPAR's using micro partition.

Active memory sharing (AMS) & Active Memory Expansion (AME) for the memory sharing of a pool of physical memory among partitions and to provide additional memory capacity for partition.

Managing the hardware using the HMC and webSM consoles & Upgrading of Hardware management console (HMC).

Managing the LPARs under the blade servers using integrated volume manager (IVM) consoles.

Migration of physical to virtual environment of AIX systems (P2V) and also migration of Virtual to Virtual (V2V) of LPAR migration from one hardware to another.

Working knowledge on different POWER hardware P4, P5, P6, P7 ( p6 520, p6 550, p6 570, P710, P740, P780, P795) with LPAR technology.

Working knowledge of different POWER blade hardware like PS700, PS701, PS702.

Experience in managing the different BLADE hardware using Management Module console (MMC) and Integrate Virtual Manager (IVM) consoles for the LPARs.

Experience in managing the blade hardware and working with the hardware vendor for the faulty hardware replacement.

Migration of AIX from 5.x, 6.x & 7.x using NIM and media and also using alt disk migration methods based on the application environment.

Migrating from AIX to Red Hat Enterprise Linux.

Experience in performing daily tasks of performance analysis, provisioning, replication, data migration and configuring storage for hosts using SVC and SymMerg technology.

Experience in Storage Migration, moving storage from EMC to SVC and upgrade sddpcm driver and micro code. SVC to SVC Migration on VIO and upgraded sddpcm drivers.

Implementation and Administration experience includes Planning and Design, providing storage solutions for SAN/NAS.

Proficient with SAN Integration, SAN Implementation, SAN/NAS Troubleshooting and Disaster Recovery.

Experienced in setting up Netapp infrastructure from configuration through provisioning along with switch zoning.

Good understanding about storage virtualization from the CLARiiON, VNX, DMX and VMAX arrays to the VPLEX.

Hands on experience with Cisco MDS 9513/09/06, 9216, Brocade 5300, 4800/3200 and DCX Director Class.

Applying security patches (TL&ML) for all the AIX servers.

Managed major patch release updates to the servers without complete downtime to the application servers.

Upgrade IBM AIX maintenance levels, perform failover/fallback procedures.

Firmware upgrade to the managed system.

Physical memory & CPU upgrade for the managed system as per the requirement.

Experienced in Monitoring & Performance tuning of AIX server for the latency issues reported by the servers.

User Administration like creating users, setting password, changing the attributes to the users.

Working with 3rd party tools like ITM, SCM, TSM to ensure the events are notified to avoid outages on the productions servers.

Experience in DR drill for all the applications in the environment to ensure the data replication from the production.

Responsible for architecting data center moves involving IBM Mainframe, Pure flex and Blade center implementations.

Architected ESB/middleware solutions including Datapower and Pattern-based Pureflex / Pureapp servers.

Worked on Linux operating systems like Red hat and Suse Linux.

Wrote tools in Perl&shell scripting to gather user data from global network and database systems via parallel SSH connections for user management & made data available across the network via RESTFUL interface.

Wrote suite of tools for NIS and local Unix accounts management, keeping user details synchronized across the systems.

Extensively worked on RHEL, KVM, CFEngine, Perl, Subversion, Kickstart, Bacula, Kerberos,Xenoss.

Perl development to interact with LDAP (AD) servers to query & modify person, host &netgroup data.

Building software packages on Red Hat Linux (RPM).

Provided support for Unix infrastructure, both in-hours & out of hours on call, dealing with performance, resource, software and operating system issues.

Written Scripts that will generate reports as per the business.

Written Shell scripts to create users on multiple servers.

Performing kickstart to build out Linux environments to automate Linux installations with kickstart to avoid manual intervention.

Managing and configuring Kickstart server, installing/up gradation of RHEL 5.x/6.x using custom Kickstart setup.

Creating customized Kickstart profiles for each server and making ISO to build the server.

Experience with Puppet and Chef Configuration management tool.

Performed centralized management of Linux boxes using Puppet

Expertise in installation, configuration and administration of JBoss 4.x/5.x and Apache Tomcat 6.x.

Experience in Package Management using RedHatRPM/YUM and RedHatSatellite server.

Administrative tasks periodically like cleaning of system log files, var files, removing temp files, checking file system and scheduling job automation.

Creating/ Generating SSH keys for password less authentication in-between Oracle database.

Experience NIC bounding configuration in Linux and UNIX systems to increase the bandwidth or redundancy based on requirement by the application.

Experience performing failover testing of HACMP clusters and implementing various failover policies.

Comprehensive understating and implementation of HACMP concepts: resource groups, startup policies, takeover configurations, heartbeat.

Experience configuring AIX security settings.

Experience working on EPIC applications.

Involved in Performance Tuning, Configuring and upgrading SAP R/3 AIX platforms

Worked on Backup and Recovery of SAP R/3 systems.

Workload analysis and Performance optimization in the SAP R/3 environment.

Provided technical leadership to Infrastructure team members.

Coordinated the Infrastructure effort in support of application projects.

Education:

Bachelors of Technology in Electronics and Communications Engineering.

Professional Experience:

JOHNSON & JOHNSON

New Brunswick, NJ APR 2014-PRESENT

Systems Engineer (AIX)

Responsibilities:

Create and maintain design standards for the AIX/Linux/Unix Operating Systems and PowerVM Virtualization, and Server technologies, including the configuration of physical frames (P795, P770, P750, P720, P570) and logical servers across multiple availability tiers (highly available, non-production, archival), configuration and utilization of virtualization and high-availability operating system and server technologies.

Installing and configuring VIO Servers, building LPAR clients and sharing IO devices to LPARs.

Provided an efficient and successful data center migration procedure which included 3xP795 and 7xP770 servers that hosted 1000+ Lpars.

Installation & configuring of Power HA 6.1

Migrated Power HA from 5.x to 6.1 using different methods to reduce the downtime to the application.

Performing failover, fall back between the HA cluster nodes.

Troubleshooting the POWER HA and increasing the file system in HACMP/POWER HA cluster.

Hardwarereplacement of cluster nodes without any downtime.

Planning the major patch releases by coordinating with the application team for the proper implementation of security patches within the environments.

Involved in hardware migration of servers from p5 to p6 & p7.

Develop a strategic AIX to Red Hat Enterprise Linux migration plan, including a detailed roadmap (including hardware/virtualization, etc.)

Examine the existing AIX infrastructure and determine the equivalent capabilities in the Red Hat Enterprise Linux ecosystem. For example: compilers, programming interfaces, utilities, Apache, sendmail, Gnome, DNS, provisioning, etc.

Developed and implemented the shell scripting for taking mksysb and push to the centralized NIM server.

Migration of OS through NIM master.

Involved in migration of Physical to virtual servers (P2V) and virtual to virtual (V2V).

VIO Server operations, creating virtual adapters and configuring Ethernet or LUNs to LPARs and performing other troubleshooting techniques. Creating ether channel with link aggregation etc.

Installing and Configuring MPIO in dual VIO environment for providing continuous availability of storage to the LPAR’s.

Configuring SEA failover in dual VIO environment for providing continuous availability communication to the LPAR’s.

Applying security patches to VIO servers without impacting to VIO client.

Setup of Pureflex from scratch which includes configuring CMM, IMM, FSM, V7000 Storage, SAN and Network switches

Zoned and configured SAN Storage and extended LUNS VG in vanilla and Cluster environment.

Extensively work with SAN storage EMC VMAX, IBM SVC and DS series, EMCClariion, Symmetrix and Hitachi storage solutions.

Install & configure TSM server & clients. Node registration and storage pool allocation, configuring and troubleshooting LAN free Backups, Schedule and monitor daily or customized backups & restore through TSM in case of issues, and formulate Disaster Recovery guidelines.

Planning of downtime for the hardware upgrades for the managed systems like additional memory or CPU etc.

Working with the IBM tech support for any faulty hardware.

Configuring NIB in dual VIO environment.

ML, TL updating and APAR, fix installation, and patch update on AIX and devices on requirements basis and on customer specifications.

Creating User, Group home directories and password administering.

Installing new software or file sets, packages and other third party applications when required by the developer or business.

Using alternate disk installation method when upgrading or installing TL or ML on AIX Operating system.

Configuring NIM master, NIM resources, installing OS on NIM clients.

Provided design standard for the P770 hardware documentation.

Provided Design Consulting to the various project teams as a SME for the AIX and IBM Power hardware technology.

Creating file systems, checking for error report on servers. Running DIAG against hardware of the server to diagnose any issues.

Engineering and architecture support of VMware and Windows technologies on IBMs Pure Flex hardware.

Provided services involving IBM System x offerings such as Pure Flex, high-end System servers,VMware, Blade Center, Systems Management (IBM Systems Director), IBM Storage, IBM Cloud.

Exporting volume group from one node to other and adding new disks to volume group, Replacing failed devices.

Designing and managing disk space using AIX Logical Volume management. Strong technical skills on AIX LVM and troubleshooting.

Checking error reports and health check of the servers, running snap on AIX Server to analyze system issues.

Checking the file systems and increase/decrease the file system if required.

Fixing mount issues, checking file system integrity, running fsck in maintenance mode on rootvg logical volumes if any corrupted lv’s in rootvg.

Performance monitoring & analyzing these reports to figure out any performance issues.

Configuring NFS on the servers, working with NFS mounts and related issues.

Taking regular system backup using mksysb and volume group backup using savevg utilities.

Creating /removing paging space, checking paging space usage and increase/decrease if required.

Configuring system dump devices, taking system dump, estimating system dump, uploading the system vmcore files to IBM ftp site to get it analyzed by IBM engineers.

Closely working &coordinating with application team in case of any production issues.

Working with the Storage team in case of any data replication or LUN issues.

HMC connectivity for managed systems (p520, p550 and p570) through WebSM remote client.

Production support of Investment management Apps 24/7 on a weekly rotation basis.

Involved in the build and support of DEV, QA and UAT WAS 6.1.

Set the strategic and tactical direction of patch and release management for the Power hardware and the AIX operating systems.

Worked on Nagios monitoring tool.

Extensive experience in using Ticketing tool (BMC remedy) on change requests.

Installing RHEL 4.x, 5.x and 6.2 on guest KVM servers using Kick Start and ISO's

Build and automation of Virtual machines using the power shell scripts.

Installation of RedhatLinux, Kickstart installation through SATELLITE server.

Performed centralized management of Linux boxes using Puppet.

Work with application development teams on troubleshooting JBoss administration issues.

Day to day trouble shooting for end users on UNIX/LINUX servers.

Implemented Oracle RAC high availability application cluster on RHEL 4.5

Installed the Redhat 4.0/5.0 operating system and set up the Oracle environment.

Installing packages through RPM and YUM.

Performed ERP Hosting AIX Oracle Database and SAP Volume Group Restore on AIX.

Responsible for resolving issues related to SAP basis and User Security

Supported the VCS cluster server running SAP and DB2 applications. Worked on implementing sudoon servers and limiting root access.

Maintenance of the WebSphere servers on different UNIX platforms and setting up the development, testing and staging environment for the ongoing application development.

Participated, as the SME in the intake process for feasibility study for business proposals, as well as costing exercises for the various projects.

Assisted in the investigation of new technologies and identify opportunities where these technologies can enhance the company's capabilities in a cost-effective manner.

Change management within the team and coordinating with the application team for the proper planning and implementation of changes on weekly basis.

Attending the CAB meeting for the CR discussion with the customer to provide the technical justification for every CR activity.

STRYKER, SAN JOSE, CA JAN 2012- MAR 2014

AIX Systems Engineer

Responsibilities:

Installation & configuring of PowerHA 6.1.

Migrated Power HA from 5.x to 6.1 using different methods to reduce the downtime to the application.

Performing fail- over, fall back between the HA cluster nodes.

Troubleshooting the POWER HA and increasing the filesystem in HACMP/POWER HA cluster.

Hardwarereplacement of cluster nodes without any downtime.

Planning the major patch releases by coordinating with the application team for the proper implementation of security patches within the environments.

Involved in hardware migration of servers from p5 to p6 & p7.

Migration of OS through NIM master.

Involved in migration of Physical to virtual servers (P2V) and virtual to virtual (V2V).

VIO Server operations, creating virtual adapters and configuring Ethernet or LUNs to LPARs and performing other troubleshooting techniques. Creating ether channel with link aggregation etc.

Installing and Configuring MPIO in dual VIO environment for providing continuous availability of storage to the LPAR’s.

Applying security patches to VIO servers without impacting to VIO client.

Planning of downtime for the hardware upgrades for the managed systems like additional memory or CPU etc.

Working with the IBM tech support for any faulty hardware.

ML, TL updating and APAR, fix installation, and patch update on AIX and devices on requirements basis and on customer specifications.

Using alternate disk installation method when upgrading or installing TL or ML on AIX Operating system.

Configuring NIM master, NIM resources, installing OS on NIM clients.

Creating file systems, checking for error report on servers. Running DIAG against hardware of the server to diagnose any issues.

Worked with IBM CE to upgrade the firmware of frame to AM780.

Created GPFS filesystem on a two node cluster.

Designing and managing disk space using AIX Logical Volume management. Strong technical skills on AIX LVM and troubleshooting.

Checking error reports and health check of the servers, running snap on AIX Server to analyze system issues.

Checking the file systems and increase/decrease the file system if required.

Performance monitoring & analyzing these reports to figure out any performance issues.

Upgraded HMCs from V7.7 to V7.9 SP01 for making it firmware compatibility of the frames.

Production support of Investment management Apps 24/7 on a weekly rotation basis.

Involved in the build and support of DEV, QA and UAT WAS 6.1.

Change management within the team and coordinating with the application team for the proper planning and implementation of changes on weekly basis.

Attending the CAB meeting for the CR discussion with the customer to provide the technical justification for every CR activity.

GLOBAL BRANDS GROUP

Plymouth Meeting, PA JAN 2010- DEC 2011

Systems Engineer

Responsibilities:

AIX OS level support for the different version like 5.x/6.1and installing & configuring of different operating systems like AIX 5.x 6.1.

Troubleshooting& Fixing of hardware and OS level issues and hardware level issues.

Logical Volume Management, creating the Logical Volumes, Files systems and mounting them.

Working with different blade servers with VIO support and IVM consoles.

Experienced in managing the Integrated Virtual Manager (IVM) consoles and managing the LPAR’s with them.

Experience in managing the blade server with the Management Module consoles (MMC).

Installing & configuring the blade servers with VIO & IVM configuration and managing them with MMC.

Troubleshooting the Blade servers in case of any hardware issues.

Server builds on managed system for LPARs and on Blade servers.

OS Migrations from 5.x to 6.1 with the different POWER & BLADE hardware.

Firmware level up gradations on all the POWER hardware and also on the blade servers.

Patches & Technology level up gradations for all the LPARs and to the servers/LPAR’s under blade hardware.

Working with VIO servers & LPARs and on blade servers.

Working with IVMconsoles for LPARs under blades.

Managing the blades with MMC and LPARs with HMC.

Supporting SAN attached to the AIX boxes on all the datacenters like creating and mapping LUNs to the servers.

Working knowledge on Global/Metro mirror&Flash/remote copy mappings with V7000 & SVC.

Fault Monitoring, Troubleshooting, logging vendor calls for hardware issues

Knowledge on NPIV.

JACKSON NATIONAL LIFE

Lansing, MI MAR 2009- NOV 2009

Systems Administrator

Responsibilities:

Creation of LPAR's & Configuring the LPAR's through dual VIO.

LPAR operations including: configuring and using system profiles, and activating and shutting down partitions, Power on/off partitions.

Mapping new LUNS through VIOS to client partitions to new & existing LPAR and increasing file system on client LPAR.

Configuring NIM master, setting up NIM clients, configuring NIM resource and perform network installations.

Installed AIX/VIOS in a logical partition through NIM.

Migrated 5.2 (physical box) to 5.3 (LPAR) using NIM.

Performing SEA failover as part of server build activity.

Performing DLPAR memory & CPU.

Adding virtual scsi adapter in DLPAR & Troubleshooting DLPAR issues between HMC & LPAR's.

Performing post installation after build.

Performing the fall over & fall back test of Resource groups and service IP on client requests and troubleshooting the fall over and fall back failures.

Troubleshooting login issue after failover and Resolving user issues related to logins on HACMP nodes.

Monitoring system by errpt and troubleshoot system problems.

Monitoring cluster related log files and troubleshooting cluster problems.

Creation of new file system and increasing the size of file system through C-SPOC.

Moving RG without disturbing the cluster from one node to another through C-SPOC.

Creating New resource group to existing cluster set up and new file system for existing resource group.

Upgraded cluster setups from 5.3version to 5.4version.

Creation of VG as per the build documents.

Managing disk space using AIX Logical Volume management.

File system management, creating file systems, checking for error report on servers.

Checking the file systems and increase/decrease the file system if required.

Installing new software / file sets, packages and other third party applications when required by the developer or business.

Running snap on AIX Server to analyze system issues.

Performance monitoring using and analyzing these reports to figure out any performance issues.

Configuring NFS on the servers, working with NFS mounts and related issues.

Taking regular system backup using mksysb and volume group backup using savevg utilities.

Creating /removing paging space, checking paging space usage and increase/decrease if required.

Creating Users, Groups and working user security settings, home directories and password administering.

Service Activation and decommissioning.

Installation & configuration of Tivoli tools like TSM and TEP and TSCM from the client side coordinating with onsite engineer for replacing faulty hardware as per the scheduled change.

Migration of AIX 5.3 to 6.1 using NIM.

SATYAM COMPUTERS

Hyderabad, IndiaMAY 2008-FEB 2009

Systems Administrator

Responsibilities:

Creation of LPAR's & Configuring the LPAR's through dual VIO.

LPAR operations including: configuring and using system profiles, and activating and shutting down partitions, Power on/off partitions.

Mapping new LUNS through VIOS to client partitions to new & existing LPAR and increasing file system on client LPAR.

Configuring NIM master, setting up NIM clients, configuring NIM resource and perform network installations.

Installed AIX/VIOS in a logical partition through NIM.

Migrated 5.2 (physical box) to 5.3 (LPAR) using NIM.

Performing SEA failover as part of server build activity.

Performing DLPAR memory & CPU.

Adding virtual scsi adapter in DLPAR & Troubleshooting DLPAR issues between HMC & LPAR's.

Performing post installation after build.

Performing the fall over & fall back test of Resource groups and service IP on client requests and troubleshooting the fall over and fall back failures.

Troubleshooting login issue after failover and Resolving user issues related to logins on HACMP nodes.

Monitoring system by errpt and troubleshoot system problems.

Monitoring cluster related log files and troubleshooting cluster problems.

Creation of new file system and increasing the size of file system through C-SPOC.

Moving RG without disturbing the cluster from one node to another through C-SPOC.

Creating New resource group to existing cluster set up and new file system for existing resource group.

Upgraded cluster setups from 5.3version to 5.4version.

Creation of VG as per the build documents.

Managing disk space using AIX Logical Volume management.

File system management, creating file systems, checking for error report on servers.

Checking the file systems and increase/decrease the file system if required.

Installing new software / file sets, packages and other third party applications when required by the developer or business.

Running snap on AIX Server to analyze system issues.

Performance monitoring using and analyzing these reports to figure out any performance issues.

Configuring NFS on the servers, working with NFS mounts and related issues.

Taking regular system backup using mksysb and volume group backup using savevg utilities.

Creating /removing paging space, checking paging space usage and increase/decrease if required.

Creating Users, Groups and working user security settings, home directories and password administering.

Service Activation and decommissioning.

Installation & configuration of Tivoli tools like TSM and TEP and TSCM from the client side coordinating with onsite engineer for replacing faulty hardware as per the scheduled change.

Migration of AIX 5.3 to 6.1 using NIM.

YASH TECHNOLOGIESJAN 2007- APR 2008

Hyderabad, India

Systems Administrator

Responsibilities:

Servers Installed, Configured and Maintaining of RedHat Enterprise Linux 3.0,4.0, 5.X.

Using Logical Volume Manager for dynamically extending and reducing partition sizes as when the need arise.

Increasing the size of the file systems.

Exposure to managing servers remotely using DRAC, ILOM, VNC.

Performing User Administration.

Updating the patches for all the servers.

Performance & Capacity management.

Configuring Network printers using CUPS.

Administration on Tomcat, deploying the web applications.

Installed and Configured SAMBA Server in Linux for accessing the shared files from the windows environment.

Configuring and Maintaining of Network File Systems like (N.F.S) and Auto mount in networks.

TCP/IP applications like File Transfer Protocol (FTP), SFTP.

Installing and updating Kernel. Created and modified swap files and added swap space.

NTP server and client configuration NFS Administration.

System Resource Controller Administration.

Corporate client support for mission critical environments.

Perl and Bash scripting for automation of tasks.

User,Group and access management. SFTP/FTPand key based authentication(SSH).

Day to day problem handling like related to File Systems, Disk, Memory, CPU, Network etc.

Remote console access and hardware diagnostics.

Working on FTP and SSH for remote administration.

Monitoring server performance, disk utilization and failedlogins.

Diagnosing and troubleshooting problems related to Operating System and all hardware.

Patch Management.

Problem determination in File systems and Logical Volumes.

Creating and managing the default and User defined Paging Spaces.

Creating and updating the Crontab files.

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