PROFESSIONAL SUMMARY

• Around 7 years of IT industry experience as a System Administrator Dev Ops on VMWare ESX, Linux Redhat, CentOS, SUSE Ubuntu , HP-UX, Solaris and Windows environment running Applications like Apache, Tomcast, JBoss and Weblogic.
• Experience in installing, configuring, Administering and Capacity Planning on Oracle/BEA Weblogic 8.x/9.x/10.x on Redhat and Solaris servers and also involved performance monitoring and tuning of Weblogic servers.
• Managed and Administered Domains, Servers and Clusters in Weblogic 8/9/10.x/11g and JBoss 3/4/5.x Application server environments.
• Experience in Installation, Configuration, Implementation, Crash Recovery, Disaster Recovery, Maintenance, Tuning, Security Setup Kerberos troubleshooting of Red Hat Linux, HPUX Solaris.
• Working experience on Red hat Linux AS and ES 3.x, 4.x, 5.x, 6.x, HP-UX 10.x, 11.x Solaris 8, 9 10.
• Performed memory management and involved in Kernel upgrades across Hundreds of servers.
• Expertise in Installing, Configuring and Trouble-Shooting Application Servers like IBM Websphere 3.5/4.0/5.0, BEA Weblogic and Web Servers like IBM HTTP Web Server, iPlanet WebServer, Apache WebServer on Linux and Windows 9X/200X.
• Experienced in Redhat LVM, VERITAS Volume Manager, Veritas Cluster Server, VxFs, SVM.
• Expertise in implementation and maintenance of DHCP, NAS, NFS, NIS, DNS and Apache SMTP.
• Involved in migration of Physical to Virtual on ESX and AWS Amazon Web Service EC2 Cloud environment.
• Managed multiple ESX cluster and deployed VM's using templates and managed data stores and performed Physical vMotion and Storage vMotion.
• Involved in installing rpm's and building rpm's and also creating and update rpm repositories.
• Expertise in Volume management, Disk Management, software RAID solutions using Veritas Volume manager.
• Involved in automation by using Puppet and Chef master server running on RHEL with around 500 clients.
• Experience working with HW like HP Proliant DL 360, 380 G4, G5 G6 and Blade Centers like C6000 C7000.
• Experience managing networking and Storage on HP Blade centers using HP Virtual Connect on Cisco Network and Fabric switches.
• Involved in configuring Puppet master servers and installing Puppet client software on Linux servers.
• Experience in Linux and Solaris Virtualization implementations such as VMWare and Solaris Zones/Containers LDoM's.
• Extensive working experience working with VMWare ESX 3.5 vSphere 4.0 running on HP and Dell HW.
• Experience using vSphere and VI Client tools to access ESX servers and create and manage VM's on ESX servers.
• Experience in Configuring and Monitoring using NAGIOS, NAGVIS, NDOUTLS, ZENOSS, and MRTG.
• Experience in configuring Kickstart Jumpstart servers and experience working with Images and Flash Archives.
• Experience with Hitachi and EMC SAN NetApp NAS and also Disk Array based environments and connecting server's to SAN using Qlogic HBA's.
• Experience with LDAP implementations and Experience with User Account Administration
• Experience in Configuring and maintaining LAN and WAN networks.
• Experience in working with LDAP/DNS/NIS/NIS services.
• Installation, Configuration and Administration of HP Data Protector Veritas NetBackup.
• Excellent Knowledge in Capacity Planning and Performance tuning.
• Experience in Configuration and Administration Patch and Packages management.
• Expertise in Monitoring system Access and Monitoring servers by using CA and Tivoli Tools
• Experience in trouble shooting and Performance tuning by working closely with Application, Database, Network and Storage Teams.
• Configured Clusters, Load-balancing, High availability and fail-over solutions Web Server plugins for Web Logic application server.
• Experience in understanding, helping in the design and configuring of building the Application servers like SAP, ORACLE and Web logic Environments.
• Implemented file sharing on the network by configuring NFS on the system to share essential resources.
• Experience working on boot loaders like GRUB and LILO and also upgrading Kernel on Redhat Linux servers.
• Experience in troubleshooting and resolving network issues related to the servers.
• Experience in Documentation on clients requirements and System Specifications.
• Involved in Team building Migration projects, project implementation, analytical, interpersonal and communication Skills.
• Resolving issues that may have arisen during this complicated process.

TECHNICAL EXPERIENCE

PROFESSIONAL EXPERIENCE

Confidential

Role : Sr. System Administrator

Responsibilities:

• Installing, configuring and maintaining RHEL and Open source Linux servers.
• Involved in Disaster recovery exercises for RHEL and Solaris servers and performed Disaster Recovery tests.
• Involved in supporting
• Configured Redhat Linux 5.x 6.x for production, staging and test environments
• Performed system support and capacity planning for large data center comprised of HP servers running RedHat Linux
• Patch and package administration
• Configuration and administration of Redhat and Veritas Logical volume manager
• Identify system performance bottleneck and fine tune the system for optimal performance
• Building, Installing, Configuring Virtual servers with OS of RedHat
• Build and upgrade CAD servers HP Proliant DL380 Gen7
• Build messaging servers HP proliant G8 with RHEL 6.3
• Upgraded CNA card firmware on Gen 7 server required for RHEL 6.3 install
• Installing and maintaining WEBLOGIC Servers and Tomcat servers.
• Understanding of Storage, Network, Security and core infrastructure technologies and integration with Linux environment
• Provided logical design and architecture for the enterprise storage network
• Installation, configuration and troubleshooting task on Linux or Veritas Cluster environment
• Installation, Configuration Upgrade of Linux operating systems running oracle Database
• Worked with Database administrators to tune kernel for Oracle installations on Linux
• Linux Security hardening and baseline and working on Kerberos.
• Configured NAS and NFS in Red Hat Linux
• Troubleshooting Hardware and Operating system related issue
• Changing kernel parameters
• Configured shared mount points for migration
• Installing rpm's and building rpm's and also created and updated rpm repositories
• Perform root cause analysis
• Troubleshooting technical issues
• Performed Systems Administration tasks on Linux servers such as deployment of software releases, alert handling, backups, and hardware and software installations
• Provided 24x7 supports through Trouble Ticket Handling
• Experience with completion of Installation, configuration and migration
• Responsible for building / maintaining a production environment
• Responsible for strategizing a backup plan and test plan for failure scenario
• Improved and maintained customer and employee satisfaction
• Data center consolidation and transformation experience worked on Production systems
• Experience with Database Migration, Installation, Upgrades and Patching
• Experience in adding disks to running CAD clusters
• Performed DNS tasks Updated PTR, A, CNAME, RP, MX Records
• Experience with ITSM IT Service Management Tool
• Performed Vlan tag changes via VE Selfserve
• Configuration of File system layout
• Monitored server and application performance tuning via various stat commands top, mpstat, prstat, nfsstat, prtconf, prtdiag, iostat, top, printmgr, etc and tuned I/O, memory etc.
• Installation of web logic, upgraded to service pack updates, services starting stopping.
• Configuration and Administration of DNS, NIS, NIS , NFS, Auto mount, DHCP, LDAP, Servers and clients
• Performed decommissioning of the retired servers
• Experience working in SAN environment configuring multipathing on multiple HBA's using EMC powerpath and Linux native multipathing using device mapper
• Installed Oracle, Dev framework, Jboss and several other policies on several production servers Via HPSA

Environment: RHEL Linux 5.x, 6.x, VCS, VERITAS Netbackup, SAN, NIS, NFS, NAS, Shell Scripting, Logical Volume Management for Linux, Multipathing, VSPHERE, HP Proliant series

Confidential

Role : Sr. Linux/Solaris/Weblogic Engineer

Responsibilities:

• Building, Installing, Configuring servers from scratch with OS of RedHat SUSE Linux and Sun/Oracle Solaris.
• Configuration and Administration of VERITAS Volume Manager and High Availability using Veritas cluster server on Solaris 8/9/10.
• Installing Patches to the current version, Packages related to hardware, and system customization
• Configuration of MySQL database.
• Involved in Weblogic upgrades from 9.x to 10.3 .5 and involved in performance tuning of Weblogic servers.
• Created new instances on AWS EC2 cloud and involved in creating security groups and monitored Cloud instances using Cloud watch.
• Configured Weblogic server with Node Manager, Admin server and Managed servers.
• Configured and supported Proxy and Reverse proxy for Apache and Sun One Web servers to connect to Weblogic servers.
• Involved in managing wholeroot and Sparse root zones running on Solaris 10 11 environments and also involved trouble shooting zones/Containers.
• Moved physical servers to AWS EC2 Cloud by creating multiple cloud instances using Elastci IP and Elastic Block Volumes.
• Experience virtualizing Physical Redhat Linux servers by migrating them to VM's on VMWare ESX and vSphere.
• Experience performing migrations and Upgrade of Kernel and Applications from different UNIX servers like Solaris, HPUX to Redhat SUSE Linux.
• Experience installing Linux servers using Kickstart and Cloning on ESX servers.
• Configured Volume groups and logical volumes, extended logical volumes for file system growth needs using Redhat SUSE Logical Volume Manager LVM commands.
• Created Puppet manifests for Sudoers, Sendmail and network configurations and managed 300 Linux servers using puppet master server.
• Experience supporting applications installation and configurations like Apache, Iplanet, Weblogic, Websphere and Databases like Oracle, Sybase DB2.
• Experience configuring Satellite and Repository servers to perform RPM installations across the environment.
• Experience migrations and Virtualization from P2P P2V.
• Configuration and Administration of VERITAS Cluster Server VCS , fail over test of VCS group and adding/modifying VCS resources.
• Creation of Volumes and file systems on SAN disks using Redhat LVM and VERITAS Volume Manager.
• Extensive experience working with HP hardware likes HP Proliant servers DL 360, 380 580 G4, G5 G6 servers and also Blade Centers like C3000 C7000.
• Activities include user administration, startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation using shell scripting BASH, KSH and Perl for RedHat Linux systems
• Troubleshoot hardware, software and Operating system related errors on Linux
• Implementing Software and Hardware RAID at HW and OE level.
• Configuring Virtual Machines under VMWare ESX 4.0 servers to install Linux guests.
• Performance monitoring and Tuning using top, prstat, sar, vmstat, ps, iostat etc.

Environment: RHEL Linux 5.x, SUSE, VERITAS Volume Manager, VCS, VERITAS Netbackup, VMware ESX, SAN, NIS, NFS, NAS, Shell Scripting.

Confidential

Role : Sr. UNIX/Weblogic Administrator

Responsibilities:

• Building, Installing, Configuring servers from scratch with OS of Solaris, Linux HPUX.
• Configured Jumpstart servers for remote installation of Solaris, Kickstart for Linux and Ignite for HP-UX servers.
• Supported Weblogic environment and involved in trouble shooting Node Manager for Local and remote administration.
• Implemented Proxy plugin between Apache and Weblogic mod wl 20 and apache and tomcat mod jk .
• Performed Application migration from Weblogic 8/9 to 10.x environments running on Solaris 8/9/10
• Involved in creating Redhat RPM's and rolled out RPM's across 200 servers and also involved in Linux Kernel upgrades using repository servers.
• Involved in large migration project of migrating 1000 Servers consisting of Redhat Linux Solaris Operating System.
• Configuration and Administration of Redhat Cluster Suite RHCS with GFS Global File System , fail over test of RHCS Services and adding/modifying RHCS resources.
• Created ZFS File systems and pools and exported to the local zones.
• Installing Patches, Packages related to hardware, vendor software and system customization.
• Installed and configured VERITAS Netbackup and configured it as a backup Server and Media Server.
• Worked on taking Backup even by using regular ufsdump, ufsrestore, fbackup, frecovery, DLT Tape Drives.
• Allocating system storage and planning future storage requirements, Exporting and Importing Database.
• Performed User Security administration ,Multiple backup Recovery technologies Snapshots, Disaster recovery plan
• Adding/expanding new storage to existing/new systems using LVM, VERITAS Volume management VxVM and VxFS on Linux/SUN servers.
• Configuration and Administration of Veritas Cluster Server VCS , fail over test of VCS group and adding/modifying VCS resources.
• Configured additional service groups and resources management with VERITAS Cluster.
• Day to day maintenance of Veritas cluster Servers and Redhat cluster server.
• Created Local zones and Branded zones on global zones and migrated the application on to these zones from the physical serves.
• Worked on Solaris Live Upgrade servers which are running Solaris 8 as it is EOL.
• Cloned system for automated Linux Installation, software distribution and production deployment using SystemImager/Satellite Server.
• Involved on P2P, P2V and V2V migration.
• Involved in large data center migration planning, designing, moving servers to new data center, coordinating and troubleshooting issues with various network, application and storage team.
• Configured Control domain on M T series servers and created various Guest LDOMs on them for each different applications.
• Worked on HP and IBM Blade/Chassis to setup Linux environment.
• Used Redhat satellite server for patch and package distribution.
• Worked on VMware and created ESX hosts on the servers and have created Clusters and Volumes under these Clusters.
• Allocated resources to the Virtual Machines based on the requirements from the Users.
• Implemented Logical Volume management LVM for disk management and allocation of space to physical volumes, Creating Logical volumes and clearing the unused devices.
• Installation and maintenance of WEBLOGIC and IPLANET Servers.
• Supported Oracle RAC Real Application Cluster server running on RHCS/GFS environment.
• Monitoring Virtual memory, Swap management, disk and CPU utilization by using various monitoring tools.
• Performance monitoring and Tuning using top, prstat, sar, vmstat, ps, iostat etc.
• Creating, Increasing, Shrinking, Restarting, Replacing and Removing the Volumes and Volume objects.

Environment: Solaris 10/9/8 ,Linux RHEL 5,Sun Fire 6800/E6500 Server, E10K/25K, T2000/T5000, M5000, HP L/N/RP series, IBM Power 570,p5 505 Express servers, Blade Server, Apache ,SAN EMC/HP/Hitachi, Veritas Volume Manager, VCS, Veritas Netbackup.

Confidential

Role : UNIX/Weblogic Administrator

Responsibilities:

• Activities include user administration startup and shutdown scripts crontabs, file system maintenance and backup scripting and automation using shell scripting BASH, KSH and Perl for Red Hat Linux systems.
• Involved in installing, configuring and administering Oracle BEA Weblogic server 8.x/9.x/10.x on Linux and Solaris servers.
• Managed and monitored Weblogic servers performance by tunning JVM Heap size GC parameters.
• Configured Red Hat Linux servers over the network using Kickstart on Dell servers.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager LVM commands.
• Upgraded Weblogic servers from 7.2 to 9.0 on Linux boxes.
• Performed User Account management, data backups, and user's logon support.
• Configured NFS and NIS in Red Hat Linux and SUSE.
• Installed Veritas Volume Manager and Veritas NetBackup on Solaris and Linux systems, and assisted in providing support for troubleshooting.
• Performed maintenance and support for Red Hat Cluster System running on Red Hat Enterprise ES server v 3.
• Created and configured file systems for Oracle 9i on Red Hat Enterprise Linux 5.0 servers.
• Configuration and Maintenance of Auto mounting in Solaris and Linux.
• Configured SAMBA to get access on the Linux shared resources from Windows clients.
• Installed and configured WebLogic 9.0 on different Linux and Solaris servers.
• Implemented Web Application Servers Tomcat Web Server, JBoss Application Server on Red Hat Linux environment.
• Configuration and Administration of Apache Web Server and SSL.
• Installed and maintained IBM Tivoli Storage Manager TSM for Backups and data storage.
• Configured GPFS to allow multiple systems and application to share common pool of storage.
• Configuring Virtual Machines under VMWare ESX Servers to install Linux guests.
• Understanding of web services software architectural and design issues.
• Good experience working on LAN/WAN and TCP/IP Protocols.
• Configured backup/archive policies using backup utility and mksysb images of root volume group to meet data archiving requirements and disaster recovery readiness.
• Assisted in configuration and administration of SAN environment comprised of EMC and Hitachi storage devices.
• Generated reports to show the trends of resource utilization user/CPU/network load.
• Replaced failed disks on various production servers on Dell and Proliant.
• Used Network Monitoring tools like Nagios, and used system performance analysis tools.
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Used AWK to do the data manipulation on input files like reading records, breaking the records into fields and counting the records.
• General UNIX Systems Administration on Linux servers, including alert handling, deploying software releases, backups, hardware and software installations.
• Provided 24x7 supports through Trouble Ticket Handling.

Confidential

Role : Unix System Administrator

Responsibilities:

• Solaris and Redhat Linux server's administration.
• UNIX Administration- maintaining around 1000 Production environment including Solaris RHEL 3.x 4.x servers. Managing their memory / CPU load, Disk Space, swap space, processes etc running on them.
• Installation, configuration administration of Redhat Linux 8/ 9/ RHEL 3.0/ RHEL 4.0 Solaris servers.
• Upgrading Development servers to Solaris 9 10 from Solaris 8
• Experience configuring ILO and Manage Servers remotely using ILO.
• Building Servers using NIM from mksysb or spot.
• Configure servers to use HTTP, DNS, NFS, NetBackup, Storage Disk configuration.
• Creating administer user accounts, SUDO access, etc.
• Managing file systems grow them on fly using Linux and Veritas LVM on Solaris and Linux.
• Implementing software RAID at install-time on Linux.
• Add, remove, and resize logical volumes on Linux and Solaris.
• Install multipathing software such as EMC powerpath, HDLM on Solaris and native multipathing on Redhat Linux and performed firmware upgrade on HBA's.
• Configuring bonding in Linux and Link Aggregation in Solaris .
• Maintain troubleshoot SAN and Fibre card related errors on Solaris and Linux.
• Maintain troubleshoot Storage Disks from IBM, HITACHI, and EMC Disk arrays.
• Manage and troubleshoot any printer issues.
• Shell Scripting to automate tasks on Solaris and Linux and automated jobs using Crontab.
• Co-ordinate with IBM and HP for faulty part replacement.

Environment: Solaris 8 9, RedHat Linux 8/ 9/ AS3.0/ AS4.0, LVM for Linux, EMC Disk Array, Apache 2.0, HACMP, Websphere, NIM.