SUMMARY

• Over 10 years of IT experience in System Administration under heterogeneous environment of Linux (Redhat & SuSE), UNIX ( IBM AIX, Sun Solaris, HP - UX),
• Creating Service call, work order, change request according to the requirement of the problem, Closing Incident requests
• Experience in installation, configuration, maintenance and troubleshooting Redhat Satellite server.
• Experienced in configuration and supporting Vmwar,e vSphere 5.x ., Hyper-converged Infrastructure, Cloud Foundry, Virtualization
• Experience on VMware HA, DRS, VMotion, SVMotion and Fault Tolerance .
• Managed packages using RPM/YUM on Redhat Linux and maintaining patching on IBM AIX server and SUN Solaris servers
• Experience in Security Hardening in Linux, UNIX servers.
• Deployed various Red Hat Enterprise Linux virtual builds using VMware Templates.
• Extensive experience in building servers using Kickstart, NIM, and Jumpstart Process,
• Good working experience with IBM BigFix Tool for upgrading and patching Linux Servers and AIX and Sun solaris servers Vulnerability remediation.
• Experience in implementing High Availability Clusters using VERITAS Cluster, IBM Power HA, Oracle RAC.
• Managing the Mksysb images, Scheduling cron jobs for weekly back up.
• Experience in USER MANAGEMENT by giving sudo access to the users.
• Experienced in migrating Physical to Virtual servers
• Experience in installation, configuration, file system management of Soft Partitions and RAID volume management through Logical Volume Manager (Linux), Logical Volume Manager (AIX) Solaris Volume Manager (SVM), VERITAS Volume Manager ( VXVM),
• Experience in configuring NIS, NIS+, NFS, SMTP, DNS, DHCP, Mail Server, LDOM and Samba Server in a heterogeneous environment.
• Good exposure to Network Storage Solutions like NAS, and SAN.
• Experience in Linux Printer management using CUPS and SAMBA CLIENT with Windows server.
• Experience in upgrading and degrading KERNEL Versions and SAN MULTIPATHING in LINUX.
• Experience in backup and restore operation on multi platforms using Veritas Net backup and TSM backup
• Good working knowledge in registering different client servers to master Redhat Satellite Server.
• Experience in UNIX and LINUX performance tuning and performance monitoring.
• Experience in troubleshooting OS,Crash recoveryandperformance tuningactivities Skilled at investigating and resolving system problems with minimum time.
• Administrative tasks periodically like cleaning of system log files, /var files, removing temp files, checking file systems,scheduling jobsand creation of user accounts.
• Extensive experience in Bonding in Linux and SEA Configurations in AIX and IPMP (IP Multipathing) in Solaris,
• Worked on various types of SAN (EMC {Symmetrix, Clarion, DMX, SVC, and VMAX & Power path devices}, Hitachi, NPIV, NAS & IBM SAN) on Linux and Unix servers.
• Immense participation on server moves from Power 5 and Power 6 to Power 7.
• Proficient in installing new software, migrations and maintenance on AIX 5.3, 6.1, 7.1 Boxes, Upgrading the ML/TL Levels.
• Involved in PCI Compliance Audit & Risk Assessment to get the monthly report.
• Strong experience of configuring and managing Virtualization Techniques (VIOS) and implementing DUAL VIOS solutions and performing migration from 1.x to 2.x and up gradation from 2.1 FP.X to 2.2.2.2 FP.X and configuring the virtual resources for the client LPARS based on the requirements.
• Experience in Configuration of multiple logical subsystems utilizing IBM HMC with LPAR configuration, NIM to install LPAR and proficient with DLPAR and worked on HMC 6.X, 7.X for AIX servers.
• Strong working knowledge of Switch and Router configuration and customization with VLAN and Inter-switch communication. Installation and configuration of Oracle, DB2 DBA and MySQL on Unix Servers.
• Installation and configuration of Oracle RAC 11g on RedHat cluster nodes.
• Installed, Deployed, monitored and supported WebSphere/weblogic / Coherence/ Redis/ Apache/people soft /jboss Application Servers, Tivoli work scheduler, IBM HTTP/ Apache Web Servers.
• Experience in designing and configuring open source management tools Puppet, Chef and CFEngine.
• Experience in Shell/Perl Scripting languages like Bourne shell, Korn shell.
• Expertise in developing shell scripts, Perl, Ansible, HPSA,Java, python, revision control for resource monitoring in Linux and Unix in Automation.
• Experience of working in Data centers with 24X7 Production and On-Call Environment.
• Representing SA’s on P1/P2 bridges opened by OCC and successfully providing resolution to outages/performance related issues
• Technical professional with management skills, excellent business understanding and strong communication.
• Able to thrive in a rapid changing environment and quickly learn new technologies with attention.
• Time management and scheduling for all related change and jobs.
• A Good team player with ability to lead a team by example and motivate them to achieve desired objectives. Willing to take on extra responsibilities to get work done.

TECHNICAL SKILLS

Operating System: Red Hat Linux RHEL 4, 5.5, 5.9, 6.3. 7.0 SuSE Linux 10.2,11.1/2/3/4 AIX 5.1/5.2/5.3,6.1 and 7.1, Solaris 8/9/10/11 Windows NT 2000/2003/XP/VISTA/7 and NIM. VIOS 1.5/2.1.2.13/ 2.2.1 SP-02. HMC V7 R770 SP2 both GUI & command line.

Hardware: HP Proliant, DL360 G6, DL360 G7, DL380, DL390, BL460c G7, C6000 and C7000 chassis, Sun Enterprise E 5000/5500/4500/450/420 R/250/6500, Sun Fire 280R/V480/490, 3800/4800/6800 , E10K/15k/25k Series server, T Series, M Series Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers, SAN, NAS Storage Box, SAN switch etc.

Storage: SAN, NAS, DAS EMC Storage, HP P4000, P4800 and IBM Storage, HDS

Third Party Tools: Veritas Volume Manager, Logical Volume Manager, RAID, Veritas Cluster, Oracle RAC, HACMP, Redhat Cluster Service, HP Service Guard, SAR, LVM, FTP, SSL, and XEN virtualization, VMware ESX, Commvault backup service, RAID Technologies.

Web Application Server: Apache, WebSphere, Weblogic, Tomcat, IBM WAS, clea case, MQ serious, SAP, iPlanet 4x/5x.

Languages: Bash, Perl Scripting, Unix Shell Scripting, HTML, JAVA.

Network/Naming Services: NIS, NFS, AutoFS, DNS, DHCP, NIS+, LDAP

PROFESSIONAL EXPERIENCE

Confidential, Florida, Orlando

Linux / UNIX Administrator

Responsibilities:

• Installation, configuration and administration, up gradation of Redhat Satellite and Proxy servers.
• Deploying Linux VMs using Templates.
• Installation and configuration of RHEL 6 capsule servers.
• Implemented the project of moving all VSCSI disks to NPIV by building new dual VIOS servers.
• Daily systems administration, resolving systems issues, supporting different groups/apps.
• Performed installation, configuration, upgrades, Package administration and support for Linux systems on client side using Redhat satellite network server.
• Worked on installation, configuration and administration of Redhat Cluster Suite and Oracle RAC.
• Implemented 10g RAC/11g RAC with ASM files system using Oracle clusterware.
• Manage RAC environment for Day to Day Database administrator, Performance Tuning.
• Network configuration for host names, netmaks and routes details, NFS, DNS, DHCP, FTP, LDAP, and Samba, Apache servers.
• Migration of server’s from Old data center to new data center.
• Multipath configuration on SAN devices/disks on Linux to keep the disks names persistent after reboot
• Performed Memory and Swap management to improve optimization and performance of the servers.
• Experienced in User and Group administration and security issues, sudo permissions.
• Performed upgrades of Packages and Patches in Linux through bigfix tool.
• Adding/expanding new storage to existing/new systems using Linux LVM and AIX LVM VERITAS volume manager
• Driving cases related to hardware failures by engaging HP/IBM engineers and escalating to get DC access for HP/IBM hardware fixes within the SLA through emergency CRs/high priority incident cases.
• Troubleshooting NFS Servers for both media and data sharing between servers and resolved any shared storage server issues.
• VIO Server operations, creating virtual server and client adapters. Configuring vhosts shared Ethernet adapters and performing other troubleshooting techniques if any. Configuring shared Ethernet fail over for redundancy in dual vio environments.
• Design server modification and environment based Perl/ shell scripts to manage over DEV and PROD Servers.
• Migrating Operating System - From AIX 5.2 to AIX 5.3, AIX 6.1, 7.1 Installing OS patches/TL upgrades using alternate disk installation method.
• Sound knowledge in implementation and configuration of Exalogic and Exadata
• Installing, Configuring ESXi Hosts and adding to the Clusters in vCeneter.
• Installation and configuration of ESP, Tivoli and Legato agents on server’s.
• Scheduling cron jobs such as for Backup, System Monitoring and removal of unnecessary files.
• Providing 24x7 on call support documented and assisted customers with day to day Linux and Unix server.
• VMware installation, configuration and monitored with virtual environments with ESX 5x and VCenter
• Migrating virtual machines and configuration files and virtual disks from one ESX host/Datastore to another ESX/Datastore utilizing vMotion and SvMotion with minimal downtime.
• Expertise in troubleshooting in issues related to multipathing (dm multipath/powerpath) on servers
• Developed the scripts to push patches, files and maintain configuration drift through the Puppet tool.
• Running different scripts for performance, cleaning up old files.
• Configuring and scheduling backups on servers.
• Configuring Ulimit as per the recommended settings of the user and the application.
• Configured and maintained System Security using IPTABLES and TCPWRAPPERS in LINUX
• Troubleshooting network, application and server related issues
• Performed memory and swap management to improve optimization and performance of the servers.
• Writing Shell and Perl Scripting for automation of job
• Providing day-to-day user administration like adding/deleting users and managing user queries.
• Provided on-call support on as need basis.

Environment: Red hat Linux 5, 6,7 IBM POWER P 550/560/570, P 750, P760 and P770, AIX 5.3, 6.1 and 7.1 SUN Ultra Sparc 5/10 Software: Solaris 7, 8, 9 &10,11 VERITAS Netbackup 5.1HP-DL585,AIX 5.2/5.3, Dell DRAC, Redhat Cluster, VERITAS Cluster Server, Enterprise Security Manager, Opsware, Weblogic 10, JBoss, Oracle 10g/11g RAC.

Confidential, Columbus, Indiana

Linux/ Unix Administrator

Responsibilities:

• Providing support for Data centre migration activities
• Actively participate in the migrations of V2V, P2P and Lift & ship servers.
• Hands on experience in migrating near zero Applications to the new data centre
• Experience in Installation and activation of applications using command line tools like WSADMIN
• Strong Administrative skills in UNIX Operating System (Solaris, Redhat Linux, IBM AIX), Veritas Volume Manager, TCP/IP,NFS, DNS. NIS, Automounter, RAID, Mail Services, Jumpstart etc
• Troubleshooting and Administering High Availability using RedHat Cluster, VERITAS Cluster server on various business critical database and application production servers
• Administration of RHEL 5, AIX 5.3 & 6.1 and Solaris 8,9,10 which includes installation, configuration, testing on both physical and virtual machines.
• Perform live migrations and consolidate the physical servers to VMware infrastructure virtual machines with shared storage across EMC clarion and EMC symmetrix.
• Work with application team to start applications and resolve any issue.
• Migration and troubleshooting of Veritas Cluster and HACMP.
• Disk and File system management through Logical Volume Manager including GFS (Global File system)
• Configured resource group in VERITAS Cluster in E2, E3 environment
• Supported moving resource groups from one node to another node and taking online and offline Resource Groups in Redhat and Solaris systems
• Created Volume Groups, Logical volumes on Linux, Solaris and AIX platforms
• Modified UMASK, ULIMIT and Crontab entries on multiple platforms ( LINUX, Solaris and AIX)
• Monitored Linux server for CPU utilization, Memory Utilization and Disk Utilization for performance monitoring
• Configured EMC disk on various platforms ( Linux, Solaris and AIX) configured boot from SAN for the luns from EMC storage arrays
• Involved with SysAdmin activities for EMC SRDF Disaster recovery testing for the databases hosted on Unix systems
• Server remediation activities to qualify the servers for EMCSAN/Storage connectivity
• Implemented 10g RAC/11g RAC with ASM files system using Oracle clusterware.
• Expert in areas of Oracle 11g/10g/9i/8i, PL/SQL, SQL, SQL*Plus, SQL*Loader.
• Configured EMC Clariion and Symmetrix VMAX LUNs on all unix servers
• Installation, configuration and remediation of various Security software
• Installation Packages and patches.
• Writing Shell and Perl Scripting for automation of job.
• Working closely with Oracle DBAs to assign the ASM disks in physical server and in VM servers and monitoring those ASM disks and troubleshooting their IO related issues
• Involved in troubleshooting, performance monitoring, file system maintenance and network monitoring
• Involved in bridge calls with other team leads and developers for resolving the High Priority Issues for High Availability Production Systems and also for deploying EAR files into Production Environments
• Work closely with Project manager, development, testing and production team to align project deliverables, dates and report issues/concerns
• Provided On-call support (24x7), Monitoring and maintaining multiple Applications and Data Base at Development, QA and Production phases

Environment: AIX 5.1, 5.2, 5.3, 6.1. Power 550/560/570, P 750, P760, IBM HACMP V 5.2, 5.5, Windows NT 4.0, Windows ’98, Sun Enterprise 4500, Sun Enterprise 250, IBM RS/6000,Pentium PCs, Genicom Printers and Laser Jet Printers, Red Hat Linux RHEL 4, 5.5 and 5.5.

Confidential

System Administrator

Responsibilities:

• Installation, Configuration and Administration of Solaris, HP-UX, AIX and Redhat Linux Operating System.
• Experience in setup, installation and configuration of NFS and Naming services like NIS, NIS+, DNS and maintaining NFS, DNS (Master/Slave).
• Creating and managing shared disk groups in clustering environment.
• Troubleshooting network, application, and server related issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Creating the volumes and creating the file systems (UFS, JFS, EXT and VXFS).
• Adding/expanding new storage to existing/new systems using LVM, Veritas Volume management VXVM and Vxfs on Linux/SUN servers.
• Used Veritas Cluster Server (VCS) and Veritas Foundation Suite to provide high availability and storage management. Responded to unplanned system failovers within a production VCS environment.
• Building Linux servers by using VMware ESX 3.0 and also involved in channels and pushing the packages in Redhat Satellite Server.
• Installed and Configured Veritas Net backup client and advanced client software’s in Production servers.
• Configure Linux Redhat Servers with Kickstart, LDAP, DNS and DHCP and connect to network.
• Installed, configured and maintained Redhat Satellite Servers for different applications.
• Involved in large data center migration - planning, designing, moving servers to new data center, coordinating & troubleshooting issues with various data center, network, application and storage teams.
• Configured System imager for Linux Servers and used it for Cloning, software distribution and OS updates.
• Worked mainly on Solaris servers supporting all the OS administration, application and hardware issues.
• Worked on registering different client servers to master Redhat Satellite Server
• Installation, Configuration and support for Redhat Satellite Server.
• Installation, Configuration and Administration of Web Logic, Websphere and Apache Servers in Linux and Solaris Servers.
• Extensive knowledge of Solaris Zoning Technology.
• Provisioning servers for Oracle & Sybase databases.
• Monitored services such as Disk Space, CPU usage, Memory usage, Temperature of the equipment, HTTP, Mail, SSH etc. using NAGIOS.
• Planning, documenting and supporting high availability, data replication, business persistence, fail-over, fail-back using Veritas Cluster Server in SAN environment.
• Experience in setup, installation and configuration of NFS and Naming services like NIS, NIS+, DNS and maintaining NFS, DNS (Master/Slave).
• Creating and managing shared disk groups in clustering environment.
• Troubleshooting network, application, and server related issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Creating the volumes and creating the file systems (UFS, JFS, EXT and VXFS).
• Implementing RAID 0, 1 and 0+1 levels using Veritas Volume Manager.
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Installation of Veritas Maintenance Patches and Rollout Patches in Production Servers.
• Involved in mass migration of data form old EMC Storage subsystems to new Subsystems.
• Administer, maintain and troubleshoot EMC Clarion arrays.
• Working Knowledge on Tivoli Storage manager.
• Management of SUN High-end server E25k, E15K, and E10K.

Environment: AIX System P, RS6000, HACMP, VIOS, HMC, Sun Solaris 2.6 and 2.7, and 8,Sun E450, E250, Sparc stations 20, Switches, Hubs, DAt & DLT Tape Drivers, Windows NT 4.0, 98, 95, Apache, IIS 4.0 and Oracle 8i.

Confidential

System Administrator

Responsibilities:

• Installation, Configuration & Upgrade of Solaris, AIX, HP-UX, Linux and Windows operating system.
• Configuring NFS, NIS, NIS+, DNS, LDAP, Auto-mount and disk space management on Linux servers.
• Performed automated installations of Operating System using Jumpstart, Kickstart for Solaris and Linux.
• Installation and configuration of Apache, Websphere.
• Installation and configuration of Veritas Volume Manager, Veritas File System and Configuration and Administration of Veritas Cluster Server.
• Extensive use of volume management tool using Veritas Volume Manager to create disk groups, volumes with RAID architecture and layered volumes.
• Experience with configuring and managing Virtual disks, Disk Mirrors and RAID 0, 1 and 5 levels.
• Used VxVM to add disk, create new disk groups/volumes, resize, deport and import disk groups between servers.
• •Extensive Experience in AIX System Dump Generation, resizing Dump devices, understanding errpt reports and coordinating on different issues with AIX System Support Center
• •Logical Volume Management (LVM) administration of Linux, Extensively used LVM, created VGs, LVs, and disk mirroring.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Created Zetabyte file system (ZFS) in Solaris 10.
• Managed resources for zones using Solaris 10 container technology.
• Created/used LDOM in Solaris 10 and installed multiple OS.
• Creating metadevices, soft partitions, mirroring the devices and metasets.
• Space allocation to the metadevices, detaching and clearing the devices if not in use.
• Troubleshooting and building high end servers E15K, E25K and midrange servers sunfire 6800.
• Configured new service group and resources for new application in Veritas Cluster Servers.
• Worked on server consolidation and migration.
• Extensively worked in data and database migration from older machine to latest configurations.
• Proactive maintenance on systems by timely upgrading Patches to the systems and Scheduling of batch jobs and Cron jobs.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements
• Supported class monitoring and management tools such asOpenview and BMCControl-M.
• Implemented Security Hardening per company policy using Solaris 10 features.
• Involved in disaster recovery testing every quarter.
• Participation in change control activities, Involved in Memory sizing of different applications.
• Complete periodic checks of production and development systems; CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Verify successful completion of daily incremental and database backups, following developed procedures.

Environment: AIX System P, RS6000, HACMP, VIOS, HMC, Sun Solaris 2.6 /2.7/7/8 Sun E450, E250, Sparc stations 20, Switches, Hubs, DAt & DLT Tape Drivers, Windows NT 4.0, 98, 95, Apache, IIS 4.0 and Oracle 8i.