SUMMARY:

• Having 7 years of experience specialized in System Administration working on Redhat Linux, Solaris, Suse Linux, AIX, Cent OS, Fedora, OEL and Windows environments.
• Installation and support of RedHat Enterprise Linux using Satellite server Kickstart
• Installation and configuration of Solaris 10 container Technology, created and maintained Global Non Global Zones.
• Worked on the BACKUP, design, development, and support creation of all file system layouts, database environments, referential integrity relationships/constraints and security environment roles.
• Experience with Java, .Net Application Support
• Experience with Sendmail, Apache, Oracle Weblogic, Tomcat, JBoss
• Backup and Recovery Media Services BRMS
• IBM OS/400 i/5 OS support and installation- including V5R4, V6R1, and V7R1
• Expertise implementation and maintenance of DHCP, NFS, NIS, DNS Apache
• Experience on Red hat ES/AS 3/4/5/6, Sun Solaris 7/8/9/10 implementation Administration, Installation Maintenance. Installed HPUX Boxes through Ignite.
• Installed and configured Veritas Cluster Server on Solaris/Linux with Veritas Volume Manager.
• Experience in Oracle RAC clustering.
• Experience in Automatic Storage Management ASM .
• Experience working in PROD, PRODFIX, UAT, DEV TEST environments
• Proficient in NetApp, NFS/CIFS configuration, exports, quota management, near store Administration, and Data migration support.
• Associated with DBAs, OBIEE, IAM, BRM, BI, OAM for installation of Oracle database on Linux servers
• CISCO UCS configuring Connectivity experience
• Worked on IPMP and NIC Bonding.
• Installation, configuration and administration of Veritas Cluster Server and HP Service guard high availability and redundancy, Installed Configured HBA PCI/PCI-X in SAN storage.
• VMware Infrastructure Installation Configuration. Planning and Designing VMware VI3

SKILLS

• Operating System: SUN Solaris 2.6/7/8/9/10, HP-UX 11.11/11.23/11.31, AIX 5.1/5.3L, SCO Unix 5.x, Linux Redhat 4/5/6, SuSE 9/10/11 , Windows 2008/2003/7/Vista
• Hardware: Sun Fire, SPARC Enterprise M series, x86 Servers, Blade Chassis, CoollThreads. Dell Power Edge series servers HP Integrity- rx6600, rx7640, rx8640, SD64A ProLiant servers. IBM Power5/6/7 Systems 750, 770 BladeCenter H / E chassis. Sun StorageTek Arrays, Hitachi Data Systems, HP StorageWorks, EMC Symmetrix VMAX, CLARiiON CX Series.
• Cluster: Veritas Cluster, Redhat Cluster, Service Guard, Sun cluster
• Web /Application Server: Tomcat, Apache, WebSphere, Weblogic
• Database: MS SQL Server, Oracle, Sybase.

PROFESSIONAL EXPERIENCE:

Confidential

UNIX/LINUX Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 3/4/5/6, Oracle Linux 5/6 Cent OS 5.7 operating systems.
• Involved in health check of servers after patching / rebooting and checked all the services of
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using ps, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Redhat Linux.
• Responsible for the implementation of Authentication services for Linux like Centrifydc and Winbind to Authenticate to AD servers .
• Responsible for automating the process of setting up the Linux clients for AD authentication.
• Associated with DBAs, OBIEE, IAM, BRM, BI, OAM for installation of Oracle database on Linux servers for tuning, backup and restore.
• Scheduling the jobs by creating crontabs /Crontabs on Linux and Windows Servers. Responsible for providing technical support and providing production support for internally developed application.
• Responsible for monitoring and working on problem tickets. Following it up with business and technical teams, and ensuring the problem is successfully resolved.
• Responsible for documenting the issue, cause and resolution. Perform operational tasks and activities e.g. monitoring log files, performance tuning and migration between environments.
• Monitor the performance and availability of key middleware components in production and test environments.
• Have been the on-call person for the application, worked with the appropriate team members to bring the issue and get a resolution.
• Worked on customer tickets which are related to our application and help application team for the configuration changes and the file drops on the different servers.
• Troubleshooting and configuration of Local and Network based printers. User, Group Administration and Advanced File Permissions.
• Maintain security for the networked environment while allowing users to access all data and software remotely.
• Involved in supporting Apache, Tomcat and generated SSL keys for renewing SSL certs on web servers.
• Involved in developing custom scripts using Python, Perl Shell bash, ksh to automate jobs.
• Resolving production issues/tickets by using ticketing tool.
• Worked on installation and configuration and disk and file system management using Veritas Volume Manager VxVM , Veritas Cluster Server VCS ,
• Performed Memory and Swap management to improve optimization and performance of the servers.
• Multipath configuration on SAN devices/disks on Linux to keep the disks names persistent after reboot.
• Configuration of DNS servers on Linux for zones file, adding hosts to files.
• Performed upgrades of Packages and Patches in Oracle Linux and Linux
• Installed and configured Oracle Real Application Cluster RAC on Linux Servers. Creation and scheduling cron jobs for backup, system monitoring and removal of unnecessary files.
• Worked on installation and configuration Redhat Cluster Suite in Linux Servers Performed installation, configuration, upgrades, Package adminstration and support for Linux systems on client side using Redhat satellite network server.

Environment: RHEL 6.x/5.x, Cent OS 5.7, Apache 1.2/1.3/2.x, Logical Veritas Volume Manager, Veritas netbackup 5.x/6.0, VM ESX 4.x/3.x.n, Configuration of Linux, Oracle Linux operating systems on different hardware environments.

Confidential

UNIX/LINUX Administrator

Responsibilities:

• Planned and successfully executed major hardware/OS upgrades and cross platform migrations with minimum downtime.
• Created VMware Red hat Linux guest operating servers for lowered environments.
• Build, Installation, maintenance and Quarterly Patching upgrades of Linux Servers using network installation RUG and YUM.
• Monitoring and analysis of systems performance on HP-UX, Solaris, and Red Hat Linux servers supporting Oracle, Progress Databases and several other middle-tier applications
• Migration of existing Environments to new Infrastructure Blade Technology
• Configure, update, and support all 3rd party software to production like, Apache, MySQL, JBoss
• Supporting Database environments Oracle, DB2 .Provisioning and Build /Release Linux servers both Physical and Virtual using Vmware.
• Good understanding of Best1 and Hp-monitoring tool for gather performance reports for memory, cpu Spec Rating , network and I/O.
• Maintain Backup Environment Symantec Netbackup Infrastructure, daily rsync's to DR . Management of Backup Media Servers.
• Configuring sessions in a batch and scheduling them through Autosys job scheduler.
• Installation and configuration for Oracle RAC clusters using Veritas and Oracle ASM.
• Work daily with developer and DBA teams to maintain and develop a production environment.
• Participated in Business Continuity Planning BCP test failovers across datacenters.
• Experience in HP OVO, HPSA and BMC Patrol
• Configured and managed two to six node active/active CFS cluster with Veritas Storage Foundation.
• Responsibilities included troubleshooting, incident notification and resolution, problem management, post-mortem analysis, and root cause identification.

Environment: Red hat EL 5/6, Solaris 8-10, AIX 5L- V7.1, VERITAS Storage Foundation 6 NetBackup 7, UltraSPARC T-series Cool Threads, Enterprise-class M series. IBM POWER 760/770, Virtual I/O Server 2.2, HMC V7, EMC Symmetric DMX V-MAX, Hitachi Data Systems.

Confidential

UNIX/LINUX Administrator

Responsibilities:

• Installed, configured and managed Red Hat enterprise Linux, administered,
• Maintained Linux troubleshooting Hardware, Operating System Application Network problems and performance issues.
• Configured Jumpstart Enterprise Tool kit to provided Jumpstart installations and performed upgrades and troubleshooting of servers remotely.
• Building new servers with Red Hat Linux and configuring Oracle 10g databases.
• Support Dell servers with I/O analysis on Linux operating system
• Support Apache web application and configuration, troubleshooting with script for modules on all the testing servers.
• Mirrored volumes and copied file systems across servers.
• Partitioning of LUN and created volume groups for cluster nodes.
• Trouble shooting file system issues on EMC SAN and co- ordinate with Storage teams.
• Maintained, deployed and managed databases and configured with necessary requirements.
• Created and managed and administered logical volumes.
• Worked with EMC power path for multi-path.
• Created NFS, UNIX admin mount point, and patch installation on all servers.
• Worked with NetApp NAS and EMC SAN for storage.
• Administration and Troubleshooting Linux servers running business critical applications and their database
• Setup Linux Systems on user's side including installing Application tools
• Tuning the kernel parameters based on the application/database requirement.
• Performed migrations from Linux environments from old physical server to new physical server P2P
• Performed physical server to Virtual server migration P2V of Red Hat Linux servers onto VMware ESX frames ad Virtual Machines.
• Implemented NIS and NFS for administrative and project requirements

Environment: Sun Solaris, Red Hat Linux, UNIX, VMware, DNS, NIS, NFS, Apache, Tomcat.

Confidential

UNIX/ LINUX Administrator

Responsibilities:

• Administrated NFS, NIS, DHCP and DNS Samba services running on Sun Solaris and RedHat Linux.
• Worked as Unix Administrator in IT infrastructure environment providing server administration, application administration and automation solutions to support business objectives.
• Responsible for periodic maintenance updates and applied APAR fixes.
• Performed administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Provided UNIX infrastructure, operations and support for pSeries servers running IBM AIX 5.1, 5.2, 5.3.
• Configured and administrated VIO server and Lpar clients.
• Efficient use and managing the LPARS on p550, p570 using HMC.
• Perform basic system administration on UNIX boxes.
• Assigning storage luns from the vio server to vio clients.
• Designed Implemented System Security administration policies. Systems security administration policies include: User ID/Group ID management, Password policies, password aging for AIX Users.
• Created logical partitioning LPAR on IBM Pseries servers using HMC.
• Developed Shell scripts for automating the batch jobs.
• 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.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
• Maintenance of the servers on different UNIX platforms and setting up the development and testing and staging environment for the ongoing application development.
• Writing Shell Scripts for managing day-to-day transactions for automation of routine tasks.

Environment: UNIX, IBM AIX 6.1, 5.3, 5.2, POWER 6, VIO, NIM, Perl, Korn Shell, NIS, NFS, LDAP Server, HACMP software, Cisco routers.