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Linux Administrator Resume Profile

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SUMMARY:

  • Over 6 years of experience in Administration, Engineering and Development of Information Systems on AIX, Unix, Linux Redhat, HP - UX and Sun Solaris.
  • Expertise in Planning, Installation, Configuration and Maintenance of UNIX, IBM HACMP V5.3 on AIX 5.1/5.2/5.3/6.1/7.1
  • Experience with POWER 7, 6, 5, 4 Series which include IBM pSeries 780, 770, 595, 570, 550, 520, 505 and RS6000 Servers
  • Worked with IBM p 0 p 0 servers connected to NETAPP SAN.
  • Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of IBM AIX, Solaris 2.x, 8, 9, 10, HP-UX 10.x, 11.x, Win NT/2000 Server, Linux RedHat SuSE .
  • Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX
  • Extensive experience in Security remediation, critical assessments, disaster recovery and Virtualization.
  • AIX System Administrator with expertise on IBM Blade Server JS22, JS23, JS42 pSeries 590 RS6000 Servers
  • Worked with Power7/Power6/Power6/Power4 RS6000 Servers.
  • Build countless VIOS and LPAR's on p-series p550, p570, p590, p780. Configuration and installation.
  • Installed and configured DR Boxes for disaster recovery.
  • Implementation administration virtualization with various platforms such as Hyper-V and VMware.
  • Designed and managed Immigration Control and Identity Management ICIM lab with three racks of server blades and a hundred of VMware and Hyper-V virtualized machines Windows and Linux and 20 TB storage SAN/NAS/iSCSI .
  • Created another TSM server instance on the DR side
  • Solely Responsible for Building the LPARS, Allocating storage NETAPP and BROCADE and OS AIX 5.3 and 6.1 installation through NIM.
  • Worked with IBM p 0 p 0 servers connected to NETAPP SAN. Configured and assigned hardware resources within LPARS, installed AIX 5.3 and 6.1 and installed patches.
  • Creating Logical Partitions of VIO Servers, Dedicated LPARS and VIO Servers on pSeries frame .
  • Forecasting TSM infrastructure capacity needs.
  • Built HACMP Clusters from the scratch.
  • Single point of contact for HACMP Cluster issues support
  • Designed built a five node HACMP cluster from scratch and added nodes to two different existing clusters.
  • Strong understanding of VMware Networking concepts like creation of vSwitches, different types of port groups, NIC Teaming and VLAN
  • Design, build, install and configure Red Hat Enterprise Linux servers workstations
  • Create and administer RedHat Enterprise Linux operating systems to implement on the existing network.
  • Troubleshoot and Trouble Analysis of system issues
  • Determine issues and resolutions for Systems and Servers installed.
  • Experience in Migration of HACMP 4.3.1/4.5/5.1 to HACMP 5.4 using Node-by-Node migration without changing the cluster setup.
  • Performed User Account management, data backups, and user logon support.
  • Installation, configuration and administration of Solaris 9, 10, Redhat 4.x, 5.x, 6.x HP-UX 10.x, 11.x, IBM AIX 4.3, 5L.
  • Experience in Active Directory, GPOs, DNS, DHCP, File Print Server, IIS Web Server, FTP, Terminal Server, Microsoft Clustering and Exchange Mail Server in Windows based server environment
  • Managed Active Directory services. Created Accounts, Reset Passwords, and Allowed Access to different Directories using NTFS permissions .
  • Expertise on Tivoli Storage Management, Administration support.
  • Extensively worked on advanced areas of IBM AIX such as PowerVM, LPAR, HACMP etc
  • Experienced in configuring and supporting Logical Partitions/Micro Partitions LPAR/DLPAR, via HMC Hardware Management Console .
  • Experience in EMC Clarion SAN Storage, HP EVA 8400,NETAPP NAS storage environment and IBM DS4800 SAN storage
  • Solely Responsible for Building the LPARS, Allocating storage NETAPP and BROCADE and OS AIX 5.3 and 6.1 installation through NIM.
  • Managing DNS, LDAP, FTP, Tomcat Apache web servers on Linux Redhat ES 3.0 servers.
  • Expertise in implementation and maintainence of Apache SMTP, DHCP, NFS, NIS, NIS, LDAP, DNS, SAMBA, SQUID, Postfix, Sendmail, FTP, Remote Acess, Security Management Security trouble shooting skills.
  • Experienced in implementing the Workload Management WLM
  • Installation of VIO Server on IBM p6 p5 systems
  • Worked on IBM PowerSC Security Compliance
  • Proven ability to Define System requirements, recommended solutions, analyze capacity and make appropriate modifications
  • Installation, administration, configuration and testing of VIO Server and VIO client LPAR'S.
  • Extensive experience with Virtualization
  • Experienced with the installation, configuration of volume management using Veritas Volume Manager and Solstice Disk Suite on Solaris and experienced in RAID 0, 1, 5, 10 configurations.
  • Day to day administration of the Development environment and Production and Test environment systems. 24x7 on-call support
  • Strong appetite for learning new technologies with positive attitude
  • Demonstrated success many times under aggressive project schedules and deadlines. Flexible, result oriented and adapt to the environment quickly to meet the goals of the product and the organization

Core Technical Competencies:

  • Operating Systems
  • AIX 4.x/5.x/6.x/7.x, Sun Solaris 7/8/9/10, Linux 6/7/8.x, Windows 95/98/XP/NT Server, HP-UX 11.x,
  • Hardware
  • IBM p-series p620, p630, p650, p690, p5-series p570, p575, p590 RS600043p, 44p servers/workstations. EMC SAN Clarion Symmetrix, FAStT
  • Languages
  • C, Java, Java scripts Shell Scripts
  • Databases
  • IBM DB2, MS-SQL Server, MS- Access
  • Tools
  • Developer, J2EE, WSAD, TPM, Resource Analyzer, Log Analyzer.
  • Web/App Servers IBM WebSphere 3.5/4.0/5.0, IBM PowerSC Weblogic, Netscape Enterprise Server 3.6.3/iPlanet, VMware. Aixpert, Apache, IBM HTTP Server, Tomcat.
  • Networking
  • TCP/IP, DNS, DHCP, LDAP, HTTP, SSH.
  • Other Skills
  • VIOS, HACMP 4.3.1, 4.4, HACMP/ES 4.5, 5.X, Samba, TWS Veritas Volume Manager, TSM, Tivoli Storage Management.
  • Domain Knowledge
  • Insurance, Banking, Manufacturing, Automobiles, Engineering, Information Technology

PROFESSIONAL EXPERIENCE:

Confidential

Senior AIX/Unix/Linux Administrator

Responsibilities:

  • Responsible for Installation, Configuration Management, Maintenance and Systems Development of AIX Systems.
  • Very strong working experience in Sun Solaris 10 Virtualizations Zones, Containers and Ldoms
  • Configured IBM P-series 770, 750, 595, 570,550 and RS 6000 machines for production and test environments
  • 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.
  • Installed and configured Hyper-V 2012 and System Center Virtual Machine Manager 2012 providing self-service to developers.
  • Worked on VIOS and NPIV client Storage migration.
  • Performing Migration and/or Preservation Installations and upgrades from AIX 5.3 to AIX 6.1and AIX 7.1.
  • IBM Power VM experience including setup and management of VIO partitions and performance tuning on IBM hardware specifically, 9117-MMA.
  • Setup and installation of VIO servers, VIO clients, setup of network and disks in virtual environment. Virtual server backup and restoration.
  • Implements and managing resources in VIO server for client LPAR's.
  • Host based Migration, Performed Disk mirroring, backup and restore for better data availability and Disaster Recovery.
  • Perform Real time troubleshooting of VMware, windows Server and Network.
  • 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
  • Lpar firmware upgrade
  • Responsible for Implementing Cloning, Clustering, Performance tuning and trouble shooting of IBM WebSphere Application Server 4.0/5.0.
  • Provided a security and complaince solution optimized for virtualized environments on Power Systems using IBM PowerSC.
  • Perform trouble shooting on Web and Database application like Websphere, Weblogic db2, Oracle.
  • Reposnsible for Websphere and Weblogic application shutdown and restart.
  • Responsible for the support of Production, HA, DR, QA and Development environments with over 30 servers v240, v490 and E2900 running on Solaris 8 and Solaris 10.
  • Troubleshoot and Trouble Analysis of system issues
  • Determine issues and resolutions for Systems and Servers installed.
  • Involved in Building up of servers from the scratch and testing the same.
  • Extensive experience creating LPAR DLPAR using HMC.
  • Used AIXpert command to set up variety of system configuration settings to enable the desired security level.
  • Build, configure and deploy VMs and templates. Completed Physical-to-Virtual P2V, Virtual-to-Virtual V2V and Virtual-to-Physical V2P migration of Windows NT, 2000, 2003, 2008, as well as Linux servers from VMware, Hyper-V and legacy hardware.
  • High availability setup for two different clusters.
  • Designed Build a five node cluster from scratch and added nodes to two different existing clusters.
  • The task includes the following steps as to ensure all DBA/Apps accounts exist with unique IDs on both production and failover servers.
  • Renaming Logical volumes, JFS log, VG names, assigning new major numbers, VARYOFF VG, export VG and import VG with new major numbers.
  • Migrating user's home directory and applications file system to SAN disk for failover.
  • Wrote korn shell scripts for HACMP to automatically start, stop the database and application when the server failover or fallback.
  • Extensively involved in Backup Restores.
  • Third party software installation and upgrades, scheduled system health checks, S.A. procedure documentation, New system planning, Customer support, System related problem determination and resolution.
  • System Performance, Monitoring and Tuning
  • Responsible for installation, upgrade, and Migration for AIX 5.3, 6.1.
  • Responsible for the operation, maintenance and integrity of a distributed, networked
  • Performed package installations, maintenance, periodic updates and patch management.
  • Installation/Administration of TCP/IP, NIS/NIS, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client's requirement.
  • Managing and monitoring all TSM server operational processes.
  • Defining, scheduling, and monitoring backup and Admin jobs.
  • Work on performance issues in TSM environment.
  • Provide reports for the overall TSM environment.
  • Oversee maintenance and performance of tape drives and tape library infrastructure.
  • Managing the onsite/offsite tape inventory and movement with tape operations.
  • Participating in disaster recovery exercises and events.
  • Forecasting TSM infrastructure capacity needs.
  • Responsible for configuring LPAR for Production/Test environment and configured disks/storage/DS4000 connections
  • Worked with IBM p 0 p 0 servers connected to NETAPP SAN. Configured and assigned hardware resources within LPARS, installed AIX 5.3 and 6.1 and installed patches.
  • Worked on Clustered NetApp Management and troubleshooting.
  • Report Generation and Monitoring Errors in NetApp using OpManager.
  • Configured NIM server, Alternate NIM server and NIM client's and performed OS installation and OS backup mksysb for the clients from NIM server.
  • Installed VIO server Advanced POWER Virtualization on IBM P 6 570 and created virtual resources scsi Ethernet adapters and allocated the same to client lpars
  • Configured SAN storage to VIO servers and allocated the Luns to vio client lpars using mkvdev command
  • Responsibilities include day to day tasks such as file transfer, creating account, creating logical blocks, monitoring the server and application, running the script. Solving the hardware issues
  • Patching, applying efixes, APARs and upgrading TL and SP to latest levels
  • Extensively worked on creating VIO's and client LPARS
  • On- call production support 24/7
  • Configured SAN storage to VIO servers and allocated the Luns to vio client lpars using mkvdev command
  • Installed VIO 1.5 on VIO server and aix 6.1/5.3/5.2 on vio client's from NIM master
  • Used HMC to create partitions, change LPAR properties and to perform dynamic lpar operation
  • Responsible for Upgrading the HMC from 6 to 7.3.2 to 7.3.3. and performed Firmware upgradation by Upgrading the server from TL5 to TL7
  • Extensive experience in using Ticketing tool IBM remedy
  • Installed various modules of SAN on the AIX servers and tuned parameters to have a seamless SAP installation
  • Configured Fiber Channel Switch for SAN usage, zoning included
  • Installed/updated firmware on the controllers/drives/expansion cabinets
  • Created Arrays and Volumes for production use
  • Monitored performance and recommended changes to enhance as required

Environment: IBM P-series 770, 750, 595, 570,550 and RS 6000, VMware, SAN, SAP, SVC, LPAR

Confidential

System Administrator AIX, UNIX

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
  • Extensive experience creating LPAR DLPAR using HMC.
  • 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
  • Extensively worked on creating VIO's and client LPARS
  • On- call production support 24/7
  • 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
  • Configured SAN storage to VIO servers and allocated the Luns to vio client lpars using mkvdev command
  • Installed VIO 1.5 on VIO server and aix 6.1/5.3/5.2 on vio client's from NIM master
  • Used AIXpert command to set up variety of system configuration settings to enable the desired security level.
  • 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

Confidential

AIX/Unix/Linux Administrator

Responsibilities:

  • Documenting the procedures and standards for other administrators to follow.
  • Setting up standards and solving complicated issues which were escalated to engineering team
  • Discussing with the vendors for new hardware requirements
  • Built the AIX 6.1 Golden image and deploying it in the production environment.
  • Experienced in building VIOS 2.1.2.12 golden image and installing in production environment.
  • Installation of VIOS 1.5.2.5, VIOS Fixpack 11.1 Service Pack via NIM Server.
  • Installation of AIX 5.3 on all VIOC/LPAR Clients, installation via NIM Sever
  • Worked on p RS6000 frames
  • Experienced in documenting the standard hardware requirements for POWER7 p750, p770 and installing AIX 6.1 on POWER7 hardware.
  • Extensively worked on Mirroring of local disks as well as SAN disks to maintain Data Redundancy and performed Data Replication
  • Extensively work with SAN storage EMC VMAX, IBM SVC and DS series, EMC Clariion, Symmetrix and Hitachi storage solutions.
  • Configured 4.1TB and 3.2 TB of EMC SAN Storage for HACMP Cluster nodes and extended physical volumes on VG and increased file system sizes
  • Installation of RHEL 3.3, 3.9, 4.3, 4.4, 4.5, 5.2 on the IBM blades HS20's, HS21's, Hs40's, JS23's, 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.
  • 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
  • Zoned and configured SAN Storage and extended LUNS VG in vanilla and Cluster environment.
  • Configured SAN Storage in vanilla and Cluster environment.
  • Configured EMC SAN for HACMP Clusters and ensured the LUNS are zoned as shared between the nodes
  • 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.
  • 24x7 on call production support
  • Installation and configuration of VIO servers and updating system firmware by using HMC along with Logical Partition technology LPARs .
  • Building and configuring AIX V6.1, 5.3 on LPARs using NIM.
  • Single point of contact for HACMP Cluster issues support
  • Designed built a five node HACMP cluster from scratch and added nodes to two different existing clusters.
  • Experience in Migration of HACMP 4.3.1/4.5/5.1 to HACMP 5.4 using Node-by-Node migration without changing the cluster setup.
  • Extending file system and space management in HACMP and non HACMP environment.
  • Checking the status of the cluster and monitored the error log files of the HACMP.
  • Created and applied a cluster snapshot during cluster failure because of configuration changes in HACMP cluster environment.
  • Responsible for adding and setting up the start and stop scripts for the application server in a HACMP cluster environment.
  • Wrote shell scripts for HACMP to automatically start, stop the database and application when the server failover or fallback.
  • Implementation and Configuration of HACMP V5.2/5.3 clusters.
  • 24x7 on call production support
  • Shell scripts to gather server resource statistics like available memory, processors etc from multiple servers
  • Written Shell scripts to collect server statistics
  • Documenting each and every procedure and uploading the Documents on the Internal Web Portal of the Company for Team Reference.

Environment: IBM pSeries 550, 570,590, 595, AIX v5.2/5.3/6.1, VIOS, LPAR, HACMP V5.2/5.3, Windows 2000, Oracle 9i,Oracle 10g, Veritas Netbackup Java, DB2r, LVM, SSH, IBM BladeCenter JS22, FAS3100, FAS2000 storage devices, Tivoli, TSM, Weblogic, Web Sphere application Server. REDHAT LINUX, ZLINUX

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