SUMMARY

• Over 8 years of experience in infrastructure management in complex high end server/client environment consisting multi - operating systems (with emphasis on IBM AIX and RedHat Linux environment) in which my responsibilities include design, installation, configuration, maintenance, tuning and troubleshooting of servers running on IBM AIX 5.3/5.2/5.1/6.1 , RedHat enterprise Linux AS 5.0/4.0/3.0/2.1 and Windows NT/2000/2003 servers.
• IBM Certified Specialist- System p AIX
• Experience in AIX 6.1 and IBM Power 6 Machines.
• Extensive Experience on working on IBM P Series High End Servers.
• Experience in IBM VIO Server and Client Implementation.
• Experience in IBM SAN & EMC SAN.
• Experience in Performance tuning and Capacity Planning using native unix commands and advanced tools like NMON, Sysstat, eConfig, IBM Balanced Spread Sheets etc.
• Experience in Large production data center comprising more than 1000 AIX LPARS.
• Strong Experience in PERL Scripting and Korn Shell Scripting.
• Strong Experience in DISASTER RECOVERY PROCEDURE (BMR)on UNIX SYSTEMS.
• Extensive experience in performing problem determination and coordinating vendor, application and other technical support to ensure complete resolution of problems.
• Well versed with ITIL process management and incident handling.
• Experienced system Administrator with IBM Pseries, LPAR capable. Worked on the AIX 5.3 installed on latest P5 series p570 and p595 servers also involved in installation and configuration of VI/O server, created virtual LPARs and DLPARs using HMC, implemented micro-partitioning, virtualization and shared Ethernet. Experience in Hardware management console HMC administration and NIM installations of LPARs.
• Extensive experience with various methods of AIX installation and migration using Network Installation Manager (NIM) and Alternate disk installation. Experience in setting up NIM master server and NIM clients for new & complete overwritten/migration installation task. Experience in migrating AIX 5.1/4.3 to AIX 5.3/5.2 using alternate disk installation method and NIM.
• Installed and configured available AIX servers as TSM client and configured them with the TSM server using IBM Tivoli Storage Manager 5.4/5.3 also applied progressive backup methodology for backup of important files, sub files and directories available on TSM clients

TECHNICAL SKILLS

Operating System: IBM AIX 5.3/5.2/5.1/4.3.3 , Red Hat Enterprise Linux 5/4.2/3.0/2.1 , HACMP 5.3/5.2/5.1Windows NT/2000/2003 Server, DOS.

Storage: IBM SAN, EMC SAN storage, Tivoli storage manager 5.4/5.3 and Netbackup.

Languages: Bash Shell Scripting, Korn Shell Scripting, Perl Scripting,C,C ++ .

Virtual Environment: IBM VIOS 1.5, VIOS 2.1 Server & Vmware .

Hardware: IBM P/P5series (p690, p670, p630, p510, p590, p570, p520 etc ) supported by POWER4, POWER5 and POWER6 IBM Pseries, IBM Blade chassis S, H, HT with JS12, JS20, JS21 blade server

PROFESSIONAL EXPERIENCE

Confidential, Detroit, Michigan

Unix Admin

Responsibilities:

• Install, configure, maintains and performanace system integration testing of IBM AIX 5.2 /5.3 & Solaris 8/9/10 on Sun fire V440/V490/V880 machines with Veritas Volume manager and Solaris Volume manager, related utilities and hardware.
• Responsible for troubleshooting Unix based hardware and software problems
• Monitoring system activities and fine tunes system parameters and to optimize performance and ensure security of systems
• Performing capacity analysis, monitoring and controling disk space
• Developing customized scripts/procedure for routine administration tasks including
• Monitoring for improving the server environment, such as capacity tresholds,security gap, patch levels and harware recalls
• Coordinating with service provider for issue and incidents related to critical server outages, SEV1 issues and RAC
• Coordinating maintanenance and upgrade activities with OEM vendors
• Testing and ensuring servers and peripheral devices which are ready for hot stand-by
• Paticipating in the 24/7 on call rotations
• Perform disaster recovery on Unix systems.
• Documenting the server configuration as part of the decommissioning of the servers.
• Scheduling the Jobs using the Crontab.
• Responsible for processing of tapes for offshore storage
• Configuring the Hardware Management Console (HMC) & Solaris Volume Manager(SVM) to manage Unix servers
• Experencing in Alternate disk installation techniques.
• Installing the tools agent 11 and 8 on solaris servers V440,V290,T200
• Server Virtualization using Solaris zones and VmWare
• Building and configuring solaris 8/9/10 using jump start server as required for project
• Installing sun solaris on standalone systems
• Installed solaris and AIX created user login
• Managing file systems and consistency
• Boot process of Sparc systems
• Implementing Raid 0,1,0+1, 5 levels using veritas volume manager
• Attending the CAB meeting to get the approval for the change and exposed to realse, incident and service management.
• Closely coordinating with EMC team for storage and Back up, fabric issues.

Confidential, Houston, Texas

AIX Admin

Responsibilities:

• Configuring the Hardware Management Console (HMC) to manage AIX server.
• Upgrading and Patch Management of HMC attached with IBM P Series AIX Servers.
• Taking the backup and upgrading the version of HMC.
• Responsible for planning and logical configuration of new HW and SW of all pSeries systems.
• Performance Management & Tuning of AIX UNIX Kernel.
• Capacity planning and configuration of disk and loop layouts
• Manage NIM environment.
• User and Security Management.
• Upgraded HMC from version 6.1 to version 7.3
• Extensive use of LVM, creating Volume Groups, Logical volumes, and disk mirroring.
• Trouble shooting Tivoli storage manger client problems.
• Configuring TSM pre and post script.
• Implementing the flashing copy and automating it with the help of series of scripts.
• Writing the perl script for automating various tasks .
• Working with DBA on writing perl script for purging log files.
• Configuring and working with ether channels .
• Moving the resources with LPARs using DLPAR operation.
• Manging and troubleshooting probem related with storage luns.
• Taking the mksysb backup of the system regularly and checking the backup by breaking mirrors.
• Perform disaster recovery on unix systems.
• Creating altnate rootvg disk during the Patch upgrade for easy roll back.
• Attending the CAB meeting to get the approval for the change.
• Update the security attributes of users on the AIX.
• Working with IBM for replacing faulty hardware and upgrading the firmware of the machine.
• Writing the utility to monitor the errorlogs of the system and send alarm emails.
• Working with third party software like secure CRT for SSH tunneling.
• Configuring SSH for passwordless authentications.
• Installing and configuring Marimba tuner on AIX machines.
• Working with the application teams to customize the perl scripts.
• Documenting the server configuration as part of the decommissioning of the servers.
• Working on multipathing software like Powerpath of EMC.
• Helped to establish standards, policies and procedures for all aspects of UNIX server environment (e.g., configuration, administration, documentation, etc.)
• Manage data backups, archives, restoration and recovery.
• Trouble shooting any reported issue.

Confidential, New Jersey

UNIX Administrator

Responsibilities:

• Installing IBM P Series Servers and Mounting them on Rack.
• Installing and upgrading the various flavours of AIX version 5 & Aix Version 6.
• Tuning AIX servers as per our application requirement like Oracle, Tivoli products.
• Installing and configuring IBM DS 4K series storage.
• Configuring the Electronic Service Agent (ESA) to automate HMC monitoring.
• Upgrading the firmware of IBM Power 5 and Power 6 Aix Machines.
• Upgrading the firmware of storage (SAN) controller and expansions.
• Installing, Configuring and Maintaining IBM Aix Servers using LPAR & Mircropartioning.
• Patch and Package Administrations.
• Configuration and administration of Logical Volume Manager (LVM).
• Fine tuning the system for optimal performance.
• Changing the kernel tuning parameters to meet application requirement.
• Troubleshooting Hardware and Operating System related issues.
• Creating and restoring the mksysb images.
• Setup Cloning using mksysb images.
• Provide Alternate disk installation techniques.
• Backup and Restore of Non-Rootvg Volume groups.
• Creating different RAID Levels on SAN and Configuring LUNs.
• Assigning LUNs to different servers.
• Configuring Zoning on the IBM SAN - BROCADE switch.
• Creating LPARs on High End Aix servers to logically divide machine into several logical units.
• Moving the hardware resources online within LPARs with DLPAR .
• Configuring the NIM server for network Installation of AIX.
• Mirroring the root volume group into the multiple disks to have redundancy.
• Configuring the BLV on more than one disk by bosboot.
• Scheduling the Jobs using the Crontab.
• Configuring the ether channel for network fault tolerance.
• Upgrading the P Series UNIX servers.
• Analyzing errpt to find any reported problem.
• Implementing veritas NetBackup -6.5 as a backup solution.
• Performing backup, arichive and restore operations using netbackup.
• Creating policies NetBackup for controlling the behaviour of backup devices and groups.
• Tape Device and Media configuration for NetBackup.
• Installation and configuration of Veritas Storage Foundation suite.
• Working on IBM Blade Center with AIX platform.
• Find the root cause analysis (RCA) of problem to avoid reoccurrence .
• Analyzing Shared storage considerations for High Availability ( HACMP) Cluster.
• Analyzing Networking considerations for High Availability (HACMP) Cluster.
• Using various IPAT- IP Address Take Over in HACMP. ( Aliasing and Replacement).
• Deploying the Virtual I/O Servers and Clients on P Series.
• Assigning storage luns from the vio server to vio clients.
• Experience in installation and configuration websphere application server with IBM HTTP Server on AIX.
• Implementing VERITAS STORAGE FOUNDATION SUITE on AIX Servers.
• Performing NIM Installations of LPARs and DLPARS.
• Experience in HMC administration, code update and taking HMC console backups.
• Setting up installable image of AIX operating system on master server and apply it on new clients using Network installation manager NIM for new & complete overwrite/migration Installation.
• Experience in AIX system backup and restores through different methods like conventional mksysb on tapes, mksysb through NIM, sysback through TSM and NIM.
• Troubleshoot NIS, NFS, DNS and other network issues .
• Extensive experience in configuring and troubleshooting different RAID levels.
• Configuring Distributed File System (DFS) server
• Configuring Network Load Balancing in Windows 2003 Server for Webhosting.
• Administrating users in Active Directory(AD).

Confidential, Dallas

Aix System Admin

Responsibilities:

• Involved in installation, configuration and administration of AIX 5.3/5.2 on Pseries server .
• Setup and configured network TCP/IP on AIX nodes including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on the Servers.
• Diagnosed and troubleshoot software and hardware related problems.
• Implemented & installed AIX 5.3/5.2 and Red Hat AS 4.0/3.0 operating Systems on LPAR using HMC. Good knowledge of installing UNIX based operating systems on LPAR. Implemented AIX virtual I/O-VIO Server & built LPARs with VIO Servers host DASD & Virtual Ethernet also applied micro partitioning feature for optimizing CPU utilization.
• Installed and deployed operating system and security related patches and fixes.
• Good knowledge of Hardware management console HMC: update HMC code, manage HMC Users, Configure Network setting for HMC.
• Good working knowledge of installing, configuring, and upgrading IBM Blade Center’s Management Module.
• Installed AIX and performed the operating system upgrade flawlessly. Updating the existing applications and adding new ones without incident.
• Implemented, installed and supported High availability Cluster HACMP 5.3 on IBM Pseries platform.
• Developed Shell scripts for automating the batch jobs.
• Involved in Storage management, LVM, File system management, User account management, data backups and user’s logon support.
• Involved in testing of products and documentation of necessary changes required in this environment.

Confidential, Tulsa, Oklahoma

AIX Administrator

Responsibilities:

• Worked as Unix Administrator in IT infrastructure environment providing server administration, application administration and automation solutions to support business objectives
• Administered a heterogeneous environment comprising MS Windows 2003 Server, Red Hat Linux and AIX with emphasis on AIX OS. Administration involved installation, configuration, evaluation, implementation and support of strategic Business systems in a heterogeneous environment.
• Configured UNIX infrastructure, and supported IBM RS/6000 servers running IBM AIX.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands. Maintained availability, increased capacity & performance of production machines by upgrading their hardware (disks, CPU, memory, IO board, power cooling unit, motherboard etc) & firmware.
• Rack mounted IBM p630 systems, installed and configured AIX and applied maintenance levels.
• Troubleshooting of all kind of OS related and hardware related issues on the Linux servers
• Performed process automation, scheduling of processes using CRON jobs.
• Created and configured logical partitions (LPAR) on IBM p690 systems.
• Installed recommended patches on AIX.
• Designed & Implemented System Security administration policies. Systems security administration policies include: User ID/Group ID management, Password policies, password aging for AIX Users.
• Capacity planning of P Series machines with IBM Balanced Spread Sheets.
• Managed file permissions & ownership for important directories & files.
• Implemented DNS, NFS, NIS, Auto mount networking services.
• Created logical partitioning LPAR and dynamic logical partitioning DLPAR defining virtualization on IBM Pseries servers using HMC.
• Installed AIX 5.3/5.2 on IBM p670, p590 and p570 using mksysb standard image CDs and NIM installation method.
• Assisted backup team for defining backup policies.

Confidential, Houston, TX

Unix/AIX Administrator

Responsibilities:

• Responsible for migration, Configuration Management, Maintenance and Systems Development of AIX 5.2/5.3.
• Administration responsibilities include user, group, disk, printer and security management, File sharing Permissions.
• Administrator of IBM RS/6000 servers running AIX 5.3 for support of on Oracle 8.x., DB2, DNS, FTP.
• Responsible for determining hardware and compatibility requirements for installation of application software and different tools.
• Analyzed problems on RPC, security & directory services of DCE/DFS. Fixed bugs using IPtrace tools, core dump analysis tools and memory leak tools.
• Opened and Closed Change Management/control Tickets to update installation progress, and for upcoming changes in environment using Peregrine.
• Clustered multiple RS/6000 machines on AIX 5.3 using HACMP, configured HACMP cluster to keep applications running.
• Responsible for event processing, change management and problem determination in HACMP environment.
• Configured cascading, mutual takeover and rotating modes of operation of the HACMP and HACMP/ES products.
• Responsible for Setting up and configuring Netbackup server/client and tape libraries.
• Involved in modifying and optimizing backup schedules.
• Responsible for troubleshooting and resolving missed and failed Netbackup backups
• Responsible for processing of tapes for offsite storage
• Responsible for updating Netbackup policies and procedures.
• On-call and system support providing problem determination and resolution for installed systems software base and data center p-series hardware.
• Responsible for Configuration of multiple logical subsystems utilizing IBM HMC, including LPAR configuration, NIM and CSM to install and manage the LPAR Proficient knowledge in Advanced POWER Virtualization on IBM P5 System
• Extensive experience in micropartioning and V/IO, and LPAR Provisioning.
• Provided 24x7 support on shift rotation basis.