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Linux Administrator Resume Profile

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Professional Summary

  • Around 7 years of solid experience in AIX, HACMP, VIO, LPAR Linux operating system
  • Experience in installation, configuration, Troubleshooting and administration of AIX 5L, 6.1 7.1 RHEL V4/V5/V6.
  • 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 scsi adapters 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
  • 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 cluser
  • 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 micropartition
  • Active memory sharing AMS Active Memory Expansion AME for the memory sharing of a pool of physical memory among partitions and to provide additional momory 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 enivroment.
  • 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
  • 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 to
  • 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
  • Worked on Linux operating systems like Redhat and Suse Linux
  • 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 in Package Management using RedHat RPM/YUM and RedHat Satellite 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

Technical Skills

Hardware: IBM P Series Servers P510, P550, P570 , P5-595, P6-595, P7-770, P7 780, Sun Ultra V480, V880 Models, IBM DS4700, EMC DMX-950, NS42G, Clarion CX 400

Operating Systems: AIX 5L v5.3/5.2/5.1,6.1/7.1, Linux RedHat, SuSE 10

Programming Language: Shell Scripting, Solaris Packaging, bash.perl

Software: Teamtrack, Clarity, SharePoint, Archer, Qualys

Tools: nmon, vmstat, tcpdump, telnet, ssh, Exceed, mksysb, NIM

Professional Experience

Statefarm Insurance, Bloomington, IL Aug'13-Till Date

Project: Statefarm Insurance

Aix/Unix Administrator

State Farm is a group of insurance and financial services company with main focus on State Farm Mutual Automobile Insurance a mutual insurance firm that also owns the other State Farm companies.

Responsibilities

  • Installing and configuring VIO Servers, building LPAR clients and sharing IO devices to LPARs.
  • 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
  • Hardware replacement 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
  • 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
  • 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.
  • Creating file systems, checking for error report on servers. Running DIAG against hardware of the server to diagnose any issues.
  • 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 filesystem 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.
  • Change management with in 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

Confidential

AIX/Linux Administrator

Responsibilities:

  • Responsible for installation, configuration, upgrade, troubleshooting and maintenance of AIX 5.3/6.1/7.1, VIOS and RHEL 5/6 on pSeries systems OS Security Patches and Additional Software updates installation including SSH/SSL
  • Vulnerability remediation of Qualys Vulnerability scans and helped client achieve 100 compliance quarter after quarter.
  • Worked on power7 frames and built dual v
  • System backups management
  • Designed and documented DUAL VIO technical procedures Monthly CIRAT security patching including TL/SP update, OS upgrade on AIX and regular patching on RHEL.
  • Provided 24X7 support.
  • Have built and installed Dual Vio Servers on Power6 520, P550, p595s and p770s.
  • Installed and configured Aix 6.1 on P595 servers and p770 servers.
  • Migrated to Aix 6.1 from 5.3 and VIO Servers VIO 2.1 to 2.2.
  • Created Virtual Scsi server and client adapters.
  • Created Shared Ethernet adapter SEA with Control Channel adapter and the Failover.
  • Mapped the disks from the SAN to the VIO clients through VIO servers.
  • Building Application hosting AIX servers, VIO Servers
  • Installation and configuration of LPAR's with AIX 5.3 and 6.1 IBM eServer pSeries p7, p6 and p5 Servers
  • Capacity upgrade to the existing systems dynamically through HMC for physical adapters, memory, cpu
  • Upgrade Hardware Management Console HMC firmware and software
  • Worked extensively on production and non-production servers to make them complaint as per SOX,PCI and PII standards
  • Performed OS upgrades on approx. 500 AIX, Solaris and Linux Production/Non-production servers including upgrades on HACMP production clusters without incidents.
  • Installation of the operating system and applications on AIX using NIM installation method by creating NIM master and client with lppsource and spot
  • Performed OS Migration from AIX 5.3 to AIX 6.1 using nimadm method
  • Installation, configuration and administration of VIO server and VIO client LPAR'S via HMC
  • Assigning disks, Ethernet adapters and SCSI adapter to VIO Clients through VIO servers
  • Assigning disks to VIO Clients by NPIV
  • Configuration and upgrade of HACMP, performing failover and fallback of HACMP Clusters on a regular basis as per the application requirement
  • Worked with DBAs for supporting Oracle 9i / 10g / 11g / Raid configuration database maintenance activity on Dev / UAT / Prod Servers
  • Worked on Multipathing Software EMC Powerpath
  • Developed scripts to make AIX, Solaris and Linux servers compliant and also generate evidences to show present configuration of server as per MSB CIST-0027 standards
  • Brought client environment from red to green from compliance point of view in few months and got numerous client appreciations both verbal and in emails.
  • Experience in writing, updating and proofing documents and procedures

Confidential

AIX/Linux Administrator

SunTrust Banks, Inc., is an American bank holding company and one of the nation's largest holding companies.

Responsibilities:

  • AIX 5.3 / 6.1 , Solaris 9, 10 , Linux SuSE 10 system admin.
  • Requirement analysis and designing of hardware and network architecture.
  • Analysis and Environment setup as per custom requirements from Design, Development and testing team at offshore
  • Formulation and implementation of Backup strategies.
  • Liaising / Interacting with clients, offshore and Onsite Management
  • Sizing / Architecting / Performance Analysis / Troubleshooting / Managing UNIX / Linux Based Operating Systems and Hardware. This includes designing High Availability for Core Applications and Systems, Backup Strategy, DR, IBM SAN disk allocation, Load Balancers management etc.
  • System Tuning in the Performance Engineering Environment
  • AIX, Sun Solaris, Linux system monitoring, memory management, user space management, file system creation and maintenance
  • Environment setup for the application software, Performance monitoring, creating and managing user accounts, access control management
  • Reporting Server Utilization on Daily and Weekly Basis.
  • Participated in internal and corporate audits
  • Studying the entire server / application management process, procedures, identifying areas of improvement and implementing the same
  • Working with DBAs for supporting Oracle 9i/10g/11g database maintenance activity on Dev / UAT / Prod Servers
  • Monitor AIX environments to ensure that access is appropriate and report unauthorized access or attempts to management
  • Working with CCM.Net to register, resolve and monitor all incidents and changes related to IT Infrastructure

Confidential

Aix/Unix Administrator

  • 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
  • Installating Configuring the blade servers with VIO IVM configuration and managing them with MMC
  • Troubleshooting the Blade servers in case of any hardware issues
  • Servers 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 upgradations on all the POWER hardware and also on the blade servers
  • Patches Technology level upgradations for all the LPARs and to the servers/LPAR's under blade hardware
  • Working with VIO servers LPARs and on blade servers
  • Working with IVM consoles 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.

Confidential

Aix Administrator/Support

Duke Energy is a sustainable electric and gas company and is the s the largest electric power holding company in the United States.

Responsibilites

  • Installation, migration and maintenance of AIX LINUX operating systems.
  • Device management, including adding, changing, and configuring physical and logical devices.
  • Zone Creation on Cisco and brocade San switches. Creating, managing and mapping Luns to Servers from DS8K,DS3K,DS4K Storages.
  • Configuring Fcip routers and implementing and working on Global mirror between Storages DS8K .
  • Installing and Updating Device drivers for Storage, Tape library. SDDPCM, Atape . Firmware Installations on P series servers,Tape library,HMC.
  • File system management - Creation, Deletion, File Systems Changes Grow and Shrink
  • ftp access, cron and at job Scheduling.
  • Disk Storage Management in AIX Logical and Physical Volume Configuration and maintenance
  • Monitoring systems, CPU, memory and disk utilization using topas, sar, vmstat, netstat etc.
  • User, Patch and Security Management, Problem determination.
  • Troubleshooting booting related issues, creating boot records, working with system maintenance mode, accessing rootvg in system maintenance mode, recovering root password, fixing booting related issues, working with bootlist.
  • User Management - Creating, maintaining, and removing users and groups. Security settings on user accounts and groups

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