Summary

• 7 years of experience on various flavors of UNIX Solaris, Red Hat Linux, SUSE HP UX .
• Experience is working with Team as team member and Managing Team supporting Linux Environment.
• Experience working Data Center Environment supporting HW like servers, Storage and Tape Libraries.
• Experience in Implementing Virtualization using VMWare ESX 3.5 4.x Versions for Redhat Linux 5.x 5.3 5.4 6.x and Windows.
• Support and maintain of Dell Power Edge Dell Power Edge M1000e modular blade enclosures, HP Proliant DL Series, HP PA-RISC, Itanium, IBM Xseries, HS Blade Centers Sun Ultra Enterprise Servers E3500, E4500, E450, E420R, E250 , SunFire 6800/4800/3800/v880/280R and Sun workstations Ultra 5, 10, 20, Blade 100,150, 2000 in a NIS, NFS, and DNS environment.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX SUN Solaris, Red Hat Linux Systems.
• Expert in installing software's packages like FTP, NIS, NFS, QMAIL using Redhat Package Manager RPM and configured them efficiently.
• Experience in building Redhat Linux servers using Automation tools like Kickstart and Solaris servers using Jumpstart.
• Configured installed ALOM Advanced Lights Out Manager Load Balancer.
• Implement OpenSSH based security for the RHEL and Solaris10 machines.
• Involved in Migrations of servers in large server Environment P2P,P2V V2V
• Experience updating Kickstart configuring file ks.cfg for pre and post installation scripts.
• Excellent experience and knowledge with designing installing and implementing VMware ESX server, VMware virtual center, setting up V-Motion, HA, DRS.
• Experience in managing VERITAS and Redhat Cluster nodes.
• Installation and configuration of Oracle RAC 11g on Solaris, and RedHat cluster nodes.
• Experience on Red hat Linux Server Desktop Environment using through Virtual Machine under VMware.
• Involved in Design, Planning and Implementing Migration activities to move application from Solaris 9 10 to Redhat Linux Environment.
• Experience working Data Center Environment supporting HW like servers, Storage and Tape Libraries and Implementing Virtualization using VMWare ESX 3.5 4.x Versions for Redhat Linux 5.x 5.3 5.4 6.x and Windows,Fedora7,8,9,10,11,12,13,14,15and Solaris Zones LDOMS in Solaris 10 on Solaris Physical servers.
• Skills on Rapid Deployment of Linux and Configuration Management and knowledge on Nagios and Cacti.
• Experience in scripting using shells like ksh, bash, csh and perl to create user management profiles.
• Experience in Designing Creating Domains on M3000, M5000 servers created LDoms on T2000, T5220 and T5440 servers.
• Experience in Security Hardening in UNIX, Linux and Windows servers.
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• Installed, configured and implemented the RAID 0/1/5 volume management using VERITAS Volume manager 3.5/4.x/5.0 and Solstice Disk Suite SVM on Solaris. Also Experienced in VERITAS file system 3.x, 4.x, 5.0 , VERITAS Net Backup 4.x, 5.x, 6.x for disk management and mirroring tasks.
• Proficient in shell scripting Ksh/Csh/bash/Sed/Awk , PERL, Java Scripts for Oracle and Java Applications and XML.
• Experienced in managing Volumes using Redhat LVM and Solaris LVM.
• Experience using diagnostic and debugging tools such as Dtrace, Strace, truss, Top, OS tools, Blade logic, BMC Patrol, BMC best1, Legato networker client side , Solaris Management Console and HP Insight manager.
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS , LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
• Experience in updating O/S maintenance and modification levels by applying software patches and fixes APAR's and PTF's that are downloaded from IBM.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager LVM .
• Sound knowledge on VERITAS Cluster Server, VERITAS File System and VERITAS Volume manager.
• Experience working in Data Centers and supporting HW like Dell and HP.
• Helped to establish standards, policies and procedures for all aspects of UNIX server environment e.g., configuration, administration, documentation, etc. .
• Experience in Server build using Jumpstart, flash archive, NIM, Ignite and kick start, Strong working knowledge of scripting and programming PERL and SHELL.
• Proficient DB administration Oracle, DB2, Sybase and SQL knowledge for maintaining, pruning, and performing required DB tasks.
• Experienced in working with Storage Area Network SAN , TSM, EMC CLARiiON, Celerra, EMC Symmetrix DMX, Control Centre and VMware.
• Experience in installation and configuration of Web Sphere, Apache, JBoss, and IPlanet, BEA WebLogic, LDAP, and mail servers.
• Manage users accounts for the team access for Redhat Satellite Server.
• Installation, Configuration and troubleshooting of system security applications like SUDO, SSH, Power Broker and eTrust.
• Skilled in developing procedures for startup, execution, shutdown, backup, and recovery as required, and assist in determining needs for both hardware and software.
• Independent problem solving and a good team player with strong interpersonal and communication skills.
• Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.
• Ability to work independently as well as a team member.

TECHNICAL SKILLS:

Con fidential

Unix System Administrator/ SUSE Linux, Redhat and AIX

Responsibilities:

• Senior Linux Engineer supporting Red Hat Enterprise Linux and SUSE Linux Enterprise Server for SAP.
• Built and maintained majority of current Linux environment through VMware.
• Managing security patching through Red Hat Satellite Server and SUSE Manager Repositories, installing clustering software and support.
• Rotational 24 x support for Unix Linux operations.
• Involved in installing, Configuring and administration of SUSE Linux, Redhat Linux, Windows, servers by using Kickstart Jump Start server.
• Supported various application running on Suse Linux, Red Hat Linux4.x/5.x , Solaris 8, 9, 10 and VMWare ESX 3.5 4.1.
• Performed system administration of Unix servers mainly on SuSE Linux , Redhat Linux and some AIX as well
• Build servers in Phase1 and Phase2 of SAP project using VMWare Templates of guest operating system SUSE Linux.
• Worked on tickets to resolve day to day hardware/software/application bottlenecks.
• Experience in Building ESX 4.x servers to Virtualize Redhat , SUSE and Windows servers.
• Worked on Patch and Package administration, installed various third party tools on servers HP OMW, Compuware .
• Worked Primarily on RHEL 4/5,CentOS 5.5,SuSE linux and Solaris 10 Operating Systems.
• Worked extensively on troubleshooting including file system full, server panic, network troubleshooting and used various tools like vmstat, netstat, iostat, sar, prtdiag, ping etc.
• File system tuning, growing, and shrinking with Veritas File system 3.5/4.x.
• Migrated ORACLE RAC servers using system Imager and effectively worked with the database team to bring up/down the databases.
• Expert in Kickstart, NIM, Ignite Installation Methods
• Installation, Configuration and support for Redhat Satellite Server and for upgrading and patching Linux Servers.
• Involved in preparing Pre Migration and Post migration documents.
• Experience installing yum and configuring repository and satellite servers on Redhat Linux servers.
• Experience in Installing and Managing Multipathing softwares like EMC Power path and Redhat Linux Native multipathing.
• Worked on Solaris 10 Zones, Containers, SMF etc.
• Experience installing yum and configuring repository and satellite servers on Redhat Linux servers, Managing Multipathing softwares like EMC Power path, Redhat Linux Native multipathing and HPUX Alternative Links.
• Worked on various user administration activities like adding users, file permissions, groupadd, adding roles, sudo, creating links, mounting and unmounting file systems etc.
• Installation of Oracle database on Red Hat Linux and Sun Solaris 8.0/9.0 and kernel parameter tuning for Oracle database installation.
• Worked on new file system creation on EMC SAN, drivers installation Emulex, qlogic , worked on EMC powerpath etc.
• Experience in Installing Open Migrator on Solaris and Redhat Linux.
• Worked on Veritas Cluster server oracle databases etc for high availability.
• Installation and configuration of VERITAS Storage Foundation Suite, VxVM.
• Supported various backup teams - VERITAS Netbackup and TSM for backup administration.
• Installation of SSH and configuration of key based authentication.
• Integrating UNIX file systems using packages like Apache. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Assisting Development team to provide the information and troubleshooting.
• Installation of BEA Web logic, upgraded to service pack updates, installed web logic patches, configuring and creation new admin managed servers, start stop web logic server
• Administration of NFS, NIS, DNS and Send mail servers.
• Installation of Web Sphere, installed related patches, configured and creating new admin managed servers, start stop Web sphere server.
• Worked on sharing file system using NFS server and client side mount unmount.
• Supported a Data Center consisting of more than 1000 servers.
• Worked on creating and editing scripts shell scripts to automate various processes.
• Initiating Backups on daily basis and monitoring the scheduled backups.
• Constant Monitoring of System Performance using monitoring tools.
• Worked on HP Service Manager for Incident, Change Management and participated in Root Cause analysis of recurring issues, documented all the activities.
• Participated in Bridge calls, worked with various teams to solve issues related to servers applications, worked closely with Vendors on Hardware Problems, software issues.
• Involved in Day-to-Day trouble shooting for the end users on Solaris based applications.
• Coordinated with Sun Support engineers to resolve high priority issues.
• Coordinated with Sun for Solaris servers and Linux servers for Dell servers regarding hardware issues using Enterprise support.

Environments:

Red hat Linux ES 4.x, 5.x SUSE Linux 11.3, AIX, VMware ESX 3.5, 4.1, Windows 2000/2003 , Windows 95/98/XPNFS, AutoFS, NIS, LDAP, DNS, DHCP, LAN, VERITAS Volume manager VxVM v6.x , VERITAS Cluster Server v6.x ,VERITAS File system VXFS v5.x .

Confidential

Role: Sr Linux/Solaris Administrator

Responsibilities:

• Installation of Solaris 8, 9 based servers with Jumpstart and redhat Linux EL 5.x based servers using Kickstart in development, test and production environments.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, UAT/Staging.
• Performed project coordination function for evaluation, installation, monitoring, and maintenance of server software on variety of hardware platforms.
• Installed/ upgraded patches, firmware OBP , and security Kernel patches for all applications in installed infrastructure.
• Worked on Backup tools like Tivoli Storage Manager TSM .
• Installed and configured servers using Red Hat Linux Kickstart method.
• Installation and configuration of RedHat Linux 5.3 on Dell PowerEdge,HP Proliant and VMware ESX.
• Administered the UNIX System for clustered HP Servers with fiber attached SAN .
• Installation of SAMBA utility software for sharing files with Windows hosts
• Managing Disks/Filesystems using Veritas Volume Manager 3.5/4.1 for Solaris and Logical Volume Manager for RedHat Linux.
• Installation and configuration of Oracle RAC 11g on RedHat Linux cluster nodes
• Used various networking tools such as telnet, rlogin, ftp and ping to troubleshoot daily issues.
• Proactive maintenance on systems by timely upgrading Patches to the systems and applications, Scheduling of batch jobs and cron jobs.
• Upgraded over 35 servers with VERITAS Volume Manager from 3.x to 4.0.
• Responsible for user administration and management using SUDO and RBAC
• Built new systems for Production and migrated from Solaris 8 to 9.
• Maintained Volumes and File systems using VxVM / VxFS for Oracle, DB2, MySQL databases.
• Used VxVM to add disk, create new disk groups/volumes, resize, deport and import disk groups between servers.
• Experience with running SQL queries on Oracle and MySQL.
• Used VERITAS Cluster Server 4.1 to create high available environments for NFS, WebLogic and Sendmail agents.
• Worked with Solaris Security Kit 4.1 formerly known as JASS to harden the Solaris servers and removing unnecessary processes on both the operating systems.
• Performed systems monitoring, upgrades, performance tuning and backup and recovery.
• Implementation of naming services like DNS with Bind 8.4.x and NIS.
• Troubleshooting and fixing the problems related to systems, software and day to day regular maintenance tasks of the system.
• Respond to emergency calls relating to server performance, diagnosis of problems, repairing problems or calling upon appropriate vendors to resolve the issue.
• Responsible for quality reviews and standards.
• Expertise in RedHat Linux backup/restore with tar including disk partitioning and formatting.
• Provided 24x7 on-call / Remote Support for UNIX Production Problems on weekly rotation basis.
• Troubleshooting day-to-day server related issues and problems.

Confidential

Role: Systems Administrator

Responsibilities:

• Performed system administration of UNIX servers by using Operating Systems of Solaris, AIX, Red hat Linux and HP-UX.
• Installed, configured, and maintained WebLogic and Oracle DB Servers on OS Solaris, AIX and Red hat Linux.
• Installation and administration of Veritas Foundation suite including Veritas Volume manager, Veritas file system, Veritas Cluster services, Veritas NetBackup.
• Experience in Installation and Configuration of LDOMS 1.2 1.3 Control domain, I/O domain, Logical domains Virtualization in Solaris 10.
• Very good knowledge on Advanced Power Virtualization on IBM System P5, P6.
• Involved in applying Patches, Installing patch bundles on Solaris, HP-UX and Red hat Linux.
• Configure VERITAS Cluster on Solaris.
• Configuration of Hardware and Software RAID on Digital Sun Servers
• Working with Engineering Team to build New Linux Servers.
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Configured VMware and installed several Linux and Windows Operating Systems according to the client needs. Also involved in maintenance and Troubleshooting of VMware
• Maintenance of various versions of Linux Servers RHEL 4.6,5.3,5.6
• Supported some Windows and MacOS X support under the direction of other systems administration staff.
• Integrating UNIX file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Administering NFS Mounts.
• Responsible for event processing, change management and problem determination in HACMP environment.
• Extensive experience in Installation of Oracle RAC on Solaris 10 and Linux environments, Configuring of nodes, Virtual IP, Private and Public network for Oracle RAC.
• Set up Virtualization that includes Installation and configuration of Virtual I/OServer VIOS , and Client LPAR, Dlpar Provisioning and Micro partitioning.
• Backing up and restoring files across the network, Performed OS upgrades and Patch loading as and when required.
• Plan, design, Implementing, Installation and configuration Operating System upgrade on Red Hat Linux 4.0 on HP-Dl585 servers.
• Experience in Developing KORN, BASH, PERL, Python shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Worked in configuring and setup connectivity between web servers, database servers and directory servers as a process server administrator.
• Actively participated Disaster Recovery DR Tests.
• Planning configuring storage using LVM.
• Logical Volume Management LVM , Installed Veritas Volume Manager 4.1 and created file systems, mirrored and striped volumes
• Applying software maintenance, program fixes and keeping the system software releases current.
• Involved in postproduction support for solving complex TICKETS.
• Performed IBM Total product Storage Installation on different Operating Systems.
• Supporting various applications on UNIX environment.
• Managing Task plans and uploading into database
• Software Deployments on request basis for production environment.
• Building Task Plans for all S/W deployments and review with Application teams.
• Coordination with off-shore team to implement any changes in production Environment.
• Day-Day application support on production and technical documentation for critical prod issues, On call pager support 24/7 environment.
• Work with Off Shore Team to troubleshoot Development issues on production environment, Attend weekly status calls and discuss about resolved issues and ongoing issues.

Environment: Solaris 8, 9 10, RHEL 5.34.4.6, AIX 5.3,6.1, HP-UX 11.11, 11.23, E10K, E25K domain servers, Sun Fire V440 v210, v220, v240, Sun Blade servers, Web sphere 6.1, VCS, VVM, Remedy Ticket Monitoring Tool , , EMC Storage SAN, Veritas cluster server, Solaris/Veritas volume manager, Ldap, HMC, IBM Tivoli Storage Manager 5.4/5.3, NIM, VMware, RAID, Jumpstart, kick start.

Confidential

Unix Admin and Mainframe MVS/JCL/ ISPEF Administration and Development

Responsibilities:

• Worked as Unix Administrator in IT infrastructure environment providing server administration, application administration and automation solutions to support business objectives.
• Responsible for Installation, Configuration, Support and Troubleshooting existing systems in Red Hat Enterprise Linux operating environment
• Responsible for the operation, maintenance and integrity of a distributed, networked Liniux based environment.
• Provided 24X7 on call production support.
• Worked with one of the largest VMware and RHES V3 installations in Texas.
• Instituted centrally managed Linux configurations for application deployments, disaster recovery.
• Responsible for customer and advisor facing web services with a volume of 4 million hits per day.
• Successfully tested and documented the alternate disk install procedure to clone O/S
• Upgrade Maintenance level in Solaris and Linux.
• 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, mother board etc firmware.
• Maintained system security protecting the data on the system by modifying the file and directory permission. Analyzed system performance, Reallocated of kernel resources.
• Performed process automation, scheduling of processes using CRON jobs.
• Scheduling of nightly mainframe batch jobs using CA7 and Executing JCL JOBS
• Installed and configured Oracle 8i in Solaris OS. Worked with DBA team in tuning kernel parameters for database setup and performance.
• Worked in the project of configuring NIS Servers Master and Slave and NIS clients and maintained system and custom configuration files in NIS maps.
• Implementation on various RedHat Linux and SAN related requirements of PMR users
• Installed and configured J2EE Application servers on Windows and Solaris environments
• Maintained intranet DNS environment by configuring Primary and Secondary Domain Name Servers and DNS clients.

Environment: Solaris 8/9/10, Red Hat Linux, SUSE, Sar, Vmstat,weblogic,jboss,Veritas Foundation Suite, Veritas Cluster, Veritas Net Backup, Jumpstart, kickstart, ESM and HIDS, korn and perlRemedy.