Manager Management

NAITHIK P: 301-***-****

E: *******.*****@*****.***

PROFESSIONAL SUMMARY

Over 7+ years of work experience in Linux / Unix System Administration under environment of Redhat Enterprise Linux 3.x/4.x/5.x/5.6/6.x/7.x,OEL 5.X/6, Sun Solaris (8/9/10) Windows NT/2000/2003, AIX 5.1/5.3

Hands on Experience in redhat Enterprise Linux and Kickstart–PXE installation.

Experience in writing Shell scripts (Bash, Ksh, and PERL) to automate routine tasks like Selective file removal, disk space utilization & Process management and Knowledge in C/C++,Java programming language.

Experienced in Installation and configuration of Samba, Squirrelmail, Sendmail & Procmail, Apache web server, Tomcat web server.

Hands on Experience in Configuring DHCP, DNS (BIND), FTP, NTP, NIS, Mysql, LDAP and NFS.

Creating, maintaining user profiles, security, rights, Backup of data and Disaster Recovery.

Experience with the installation and configuration of web servers like Apache 2.x/1.3.x and iPlanet 4.0.

Experience in Creating, Mounting and Unmounting new File Systems.

Experienced with XEN virtual environment and managed with redhat tools.

Solid understanding of RPM, building, maintaining, and installing packages.

Familiar with writing extensions for RPM, building virtual packages, and fixing dependency loops.

Extensively worked on storage provisioning tools like OnCommand System Manager, Filer View, Navisphere, ECC (EMC Control Center), SMC (Symmetric Management console), DFM

Install and manage software and hardware RAID disks to improve fault tolerance and performance.

Expertise in Installation, configuring and Administration of Veritas Volume Manager 3.5, 4.1, 5 and working knowledge of VeritasCluster Server 5.0 and Veritas Netback up 6.0 and Tivoli Storage Manager 6.2

Custom built enterprise servers for High-Availability, load-balancing and failover in a clustered environment.

Worked on Performance Monitoring, resolving network issues & Tuning the system using tools such as – top, iostat, vmstat, netstat, nfsstat, truss, sar, ndd, ithtool, Dtrace, Strace.

Performed hardware and software installs & upgrades.

Design and set up a three node Oracle 10g,11g Real Application Cluster (RAC).

Supported installation of Oracle database (RAC) on Linux servers associated with DBAs

Experience with configuring firewalls using Linux. Familiar with configuring advanced features such as NAT, port redirection, and logging.

Content Management Systems Knowledge with e-commerce integration into CMS Experience with Linux/Apache/MySQL(Database Management).

Experience in diagnose and resolve modem and TCP/IP connection problems

Hands on Experience on VMWARE Environment (ESXServer and vSphere).

Experience in manage and scale a service-oriented application stack running on the Amazon EC2 server infrastructure.

Experience with NetApp Data Protection backup including snap copy and snap mirror for local and remote secondary copies

Strong Knowledge in implementation of enterprise storage solutions SAN (created VGs and LVs on san disks), NAS(mounted and shared NAS devices for mlnti servers), logical volume management (LVM).

Hardware support for high-end servers, high-end desktops and laptops built by IBM, SUN, Dell and Hewlett-Packard (HP).

Also have worked on most of the Storage products like HP MSA, EVA, XP Storage works, EMC Celerra, Clariion& Symmetrix,NetApp filers FASxetc and know the basic management functions such as configuring Storage Array from scratch, carving a LUN Group, RAID Level, creating a vDisk and presenting to Hosts.

Good Working knowledge on the Snapshot technology in taking the backup snapshot copies of the different volumes. Scheduled backup and retention policies.

Experience in Installing, configuring and maintaining apache/tomcat, samba, sendmail, Web Sphere Application Servers and configuring splunk agent on UNIX platforms.

Troubleshoot, patch and automate systems in a large distributed environment.

Used netstat and other tools on specific hosts to determine increased connections to specific processes, customer specific, for attack traffic.

Experience with switches and routers. From various vendors like Cisco, Dell, and HP.

Experience in working with HDLM, SAN, NAS, storage systems, Cisco SAN gear and SAN volume controller.

Extensive experience with Virtualization. Expertise in VMware Virtualization solutions, VM Migration & Cloning. Experienced in Enterprise Backup solutions – MSL, ESL, EML, Virtual Library System.

Experience IaaS managing Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Chef, Ansible, Puppet, boto, or custom-built .designing cloud-hosted solutions, specific AWS product suite experience. Proficient in using all Amazon Web Services including EC2, EBS, EIP, ENI, ELB.

Ability to quickly adjust priorities and take on projects with limit specifications.

Maintain 24x7 uptime in production server’s environment.

Effective team player with excellent logical and analytical abilities.

Excellent written and verbal communication skills, inter-personal skills and self learning attitude

Technical Skills:

Operating Systems

IBM AIX 4.3, 5L, 5.2, 5.3, 6.1, 7.1, Cent OS, RHEL 7.x,6.x/5.x/4.x/3.x,Fedora, SUSE Ubuntu,Windows family, Sun Solaris 7/8/9/10/11,MS Dos,Mac OSX, NetappDATA ONTAP(7.3, 8.1),DATA ONTAP 7.3 and 8.1versions,VMWARE ESX/ESXi.

Hardware

Netapp filers FAS series, IBM N-SERIES,EMC clarion cx series, Tape Libraries - Sun StorEdge L20/L40/L60, L180 and Storagetek’s 9840 A/B/C Fibrechannel, Sun Fire Servers - E25k, E15k, 12k, E280R, E480R, Sun Enterprise 450/420R/250 server, Arrays - Sun StorEdge 3130, A1000/D1000, EMC DMX (800 and 1000), IBM DS4K, DS5K and DS8K, SVC and Storwize V7000

Languages

Shell scripting, PERL, Bash, Python, HTML

Networking

TCP/IP, DNS, NFS, NIS, SSH, DHCP, HTTP/HTTPS, CIFS, Cisco Routers / Switches and LAN

Fabric Switches

Brocade and cisco Switches

Tools

Sun Cluster 3.2,Netapp CLI, Netapp GUI (filer view & system manager),VERITASNetbackup 6.0,VERITAS Storage Foundation Suite, Solaris Volume Manager.

Backup

IBM Tivoli Storage Manager, VERITAS Netbackup 6.5, Replication manager, Recover point and VM ware

Applications

HACMP, Tivoli (TSM), AWS,VERITAS Volume Manager and Symantec netbackup

Storage Technologies

RAID, LVM, FC, SCSI, iSCSI, Fiber channel, FCoE,SAS, Multi pathing, Backup and recovery, Business continuity and continuous access, Veritas Volume manager,Netapp storage and Amazon S3

Web Technologies

Lotus Domino 5 / 6, Apache 2.0, Tomcat, WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, HIS, Amazon Web Services

Migration Activity Experience:

Installed different (JDA, SAP, etc) application on virtual box

Puppet and LDAP client configuration on new build servers

Configured new M-series servers ( M5000, M4000 and M3000)

Configured zones on M-series servers ( M5000, M4000 and M3000)

Upgrade the Solaris 9 OS to Solaris 10

Physical servers to migrate to zone and Branded zone (P2V)

Linux VM migrations with different Vspare client (V2V)

Build the Solaris 10 and Linux servers through Jumpstart and Kick start

Configured new zones with Service group and VXFS file system mount points

Configured VERITAS volume manager and cluster (SFHA pack)

Added new physical boxes on existing failover cluster Environment.

Configured the new LUNs as a zone on M-series box

Configured for new servers network, firewall and heartbeat IP’s

Configured different VLAN’s each zone on M-series servers

Configured console and management IP address on M-series servers

Migrated SAP and DABASE zones and old physical boxes to new environment

Configured AWS, EC2 and VBLOCK (VCE)

Configured Public and private cloud datacenters.

Configured IP aggregate on Solaris boxes

BCBS Sr. Linux Administrator

Minneapolis,MN Aug 2014 - Present

Responsibilities:

Administration of 1000 + RHEL 5.x, 6.2 and 6.3 servers which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.

Management and monitoring of various services using Service Management Facility and Service Administration.

Migrate existing on-premises application to the Cloud

Implement and control the flow of data to and from Cloud

Identify appropriate use of AWS/Cloud operational best practices

Implementation and administration of VMware ESXi 4.x, 5.x, vCenter for running Redhat Linux, windows Servers on Production and Development.

Working with Apache,HTTP, ngnix Server including proxy and caching configurations

Experience with Java application servers such as Tomcat or Web Sphere Application Server Community Edition

Working on different blades and different clusters in vCenter.

Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.

Created Virtual servers Amazon EC2 in cloud.

Database and application monitoring using Nagios.

Worked with the Search relevancy team to improve relevancy and ranking of search results using SOLR and implement

Configured storage in Cloud Amazon S3, And managed users and groups.

Monitored the Cluster and Notification Services using Amazon CloudWatch.

Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands

Working in Agile Project Management environment to deliver high priority, high-quality work.

Extinctive knowledge of Agile and Scrum background, JIRA Usage, Iteration Management and Metrics Usage.

NetApp FAS 2020, 2050, 3040, 3140, 6040 series Filers, IBM N-SERIES. Proficient in SAN / NAS technologies, Planning, preparation and implementing data ontap upgrades.

Experience in and Data ONTAP management. Expertise in Creating and Managing the Aggregates and volumes (flexible & traditional).

Working on HPNetboot automation to register newly created hosts as DNS entries with the Infoblox Grid.

Working on Git and GitHub for Source code control (A Distributed version control system).

RPM and YUM package installations, patch and other server management

Working with project manager and auditing teams to implement PCI compliance.

Tech and non-tech refresh of Linux servers which includes new hardware, OS upgrade, application installation and testing.

Pakage management using RPM, YUM and UP2DATE in Red hat Linux.

Creating Templates, Clones for a VM and Deploying VM from template and OVF template

Associated with DBAs for installation of Oracle Database on Linux servers and for tuning, backup and restore.

Configured Oracle RAC Cluster.

Deployed Puppet, Puppet Dashboard for configuration mananagement to existing inftastructure.

Involved in developing custom scripts using Perl and Shell scripts to automate jobs.

Performing capacity analysis, monitoring and controlling disk space usage on systems.

Working on HPBCP (Business Continuity Planning) /DR (Disaster Recovery) environment for Tier 1 applications.

Scheduling the jobs by creating crontabs /Cronjobs on Linux servers.

Monitor the performance and availability of key middleware components in production and test environments.

Responsible for monitoring and working on problem tickets. Following it up with business and tehincal teams, and ensuring the problem is successfully resolved.

Worked on firewall implementation & Load blancer between various Linux Servers.

Experience managing multipathing using Linux and also EMC Powerpath on SAN devices.

Experience working EMC SAN storage Arrays like EMC DMX, VMAX and configured RAID groups and created LUN's on them.

One Command configuration on Exadata

Upgraded Exadata environment and maintained its hardware.

Configured,Maintained and trobleshooting Exadata Cell disk/Grid Disks.

Troubleshooting Exadata smartscan/offloading issues

Involved in migrating databases to Exadata, Setting and Monitoring Exadata using EM12c

Manage daily system administration cases using BMC Remedy Help Desk.

Worked with the Dba, developers and vendors, to install third party software tools like Bladelogic/Autosys.

Experienced in patch management through BladeLogic.

Have a good exposure to Bladelogic Server Automation (BSA) and good knowledge inpatch analysis and patchremediation which are two primary tasks of BSA.

Responsible for providing technical support and providing production support for internally developed applications.

Installing and configuring Apache, JBoss and supporting app teams on Linux production servers.

Troubleshooting and Managing Security Alerts/Patch Installations in compliance with HP Security Standards and Policies.

Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.

Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.

Working and performing data-center operations including rack mounting

Environment: Red-Hat Linux AS/EL 5.x,6.x;Solaris, Windows 2008 R2 server; Shell programming; Apache; Tomcat 6,7,ngninx;AWS,Oracle 11g; DB2;MySQL 5.x; JDK 1.6,1.7; VmWare Virtual Client 5.x; VMware Infrastructure, VMotion

GEICO Sr. Linux Administrator

Chevy Chase, MD May 2013 - July 2014

Responsibilities:

Installation and configuring of RedHat Linux servers.

Installing, upgrading and configuring RedHat Linux5/x and 6.x on Sun Servers using Jumpstart and Linux using kickstart installation, also SUSE Linux Servers manually and using SystemImager and updated using YUM and worked on upgrading and configuring SGI Servers.

Created Virtual server on VMWare ESX/ESXi based host and installed operating system on Guest Servers.

Configuring NFS, NIS, NIS+, DNS and LDAP.

Setting up cron schedules for backups and monitoring process.

Updating YUM Repository and Redhat Package Manager (RPM)

Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.

Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.

Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS+, RPM and Samba Web servers on Linux platformsfor Load Balancing.

Experience in installation, configuration and administration of Web Logic and Web sphere Servers.

Configured SAMBA to get access of Linux shared resources from Windows.

Worked in ZFS and QFS and fixed the problems occurred, set the quota and reservations for such file systems.

Applying new patches and packages of RedHat Linux.

Installation and monitoring of Veritas Volume Manager, Veritas Net Backup and Sun Cluster Server in SAN Environment.

Installing client/server Software, like Oracle, BMC-Patrol/Bladelogic/ProactiveNet, Autosys,TM Art, Veritas etc

Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.

Implementation of RAID techniques and the creation of Disk groups and volumes, plex using Veritas Volume manager.

Trouble shooted various problems when working with VxVM in initializing, replacing, mirroring, encapsulating and removing disk devices.

Created and maintained large file systems with DMX storage devices using VxVM.

Experience in implementing High Availability Clusters using Veritas Clustering, HP Service Guard, Redhat Cluster Server.

Administered file system and volumes using Solaris Volume Manager on Solaris 10/11

Worked on firewall implementation & Load blancer between various Linux Servers.

Experience managing multipathing using Linux and also EMC Powerpath on SAN devices.

Worked on registering different client servers to master Redhat Satellite Server.

Worked with and assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.

Administer the Network issues and Resolving Operating Systems related issuesAIX, Linux and making sure that the users get the proper environment for testing.

Plan and implement assigned projects, change management, on-call support, and hotline bridge participation.

Creating Database users, roles, profiles, alert logs/ trace logs on Oracle Database application boxes and worked on RAC.

Troubleshooting and analysis of hardware and software failures for various Linuxservers (core dump and log file analysis)

Environment: RedhatLinux 4.x, 5.x, SUN E6800, E25K, E4800, V240, V440, V480, V880, E450, E4500, E6500, E6800,E15K), Blade Servers, Oracle 10g, Veritas Volume Manager, Apache, VMware, VeritasNetbackup, Sun Cluster in SAN Environment.

Fidelity Information Services Linux Administrator

Little Rock, AR May 2012 - April 2013

Responsibilities:

Installation, configuration and Operating System upgrade on, Red Hat Linux 4.0, 5.0, and 6.0 and Sun Solaris 8,9,10

Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center

SWAP box configuration, Implementation of disaster backup and recovery.Performance Management & Tuning of RHEL.

Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems

Installed and configured SAMBA server for windows and Linux connectivity.

Installed and Configured Sun availability Suite 3.5 to implement Point-in-time snap shots and remote mirroring.

configuration & troubleshooting of applications including nginx, kafka, HAproxy, etc

Perform DB profiling and optimization; analyze and propose schema changes to PostgreSQL databases as needed

Implemented and configured Backup policies and Storage Units.

Managing disk storage with Veritas Volume Manager 3.5/4.1 and Solaris Volume Manager with Veritas File System (VxFS).

Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.

Implemented NIS and NFS for administrative and project requirements.

Installed and Configured Web and investigate the configuration changes in the production environment.

Responsible for multicasting of various components as a system administrator.

Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases

Tuning the kernel parameters based on the application/database requirement.

Monitoring system resources, logs, disk usage, scheduling backups and restore

Set up Quotas for the user accounts & limiting the disk space usage.

Configuring SUDO and granting root permission to users for performing certain activities.

Maintain servers with puppet for user accounts, packages and other configuration management services.

Nginx web server configuration & troubleshooting.

Upgrading RHEL 5.0 to RHEL 5.5 using live upgrade and manual upgrade.

File system tuning, growing, and shrinking with Veritas File system 3.5/4.x

Worked on network connectivity, SAN storage, creating LVM and taking TSM backup.

Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.

Modifying user’s password policies, group policy, UID and GID assignment policies.

Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of I/O devices,, memory usage and network traffic.

Troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. Login to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network used ftp, scp, and rsync commands.

Linux technical support and prepared technical documentation for check in verification.

Regular backing up of critical data and restoring backed up data. Worked in solving tickets issued on day to day activities and problems related to development and test servers.

Working knowledge on ITSM remedy and Maximo ticketing systems.

Environment: Red Hat Linux 3,4.x,5, Ubuntu 13 VMware ESX 3.5.4.5 and 5.1, Veritas Volume Manager, Sun Solaris,9,10, Redhat Cluster Server,Oracle Rac Cluster, PostgreSQL database, Weblogic 8.1,Puppet, Samba, Oracle 9i/10g,DELL Power edge 1650,2850,2950,6400, IBM Blades

ICICI BANK Linux Administrator

Hyderabad, India Jan 2011 - March 2012

Responsibilities:

Installing and configuration of red hat Enterprise Linux environment including RHEL 4,5 and 6 and OEL 5.5, AIX 5.2/5.3 and Suse Linux 9 and 10

Responsible for managing redhat Linux production and development environment servers

Configure and manage EMC power path and Oracle RAC

Managing VMware ESX 3.0 and two GSX servers for development, and around 24+ virtual machines.

Implemented mail server by using SMTP and POP3 and installed Symantec SMTP gateway for scanning all mails.

Responsible for installation and configuration of Red hat Cluster and load balancing

Handled SuSe clusters using HP Service Guard (HPC) and LVM's in SUSE Linux.

Handling Cacti and Nagios for Server, storage and SAN switches monitoring.

Network installation via cobbler kickstart server and centralized yum server for client package update.

Managing DNS for external and internal domain &Sendmail Relay Server for outgoing mails.

Assisted Oracle DBA team with migration DB from AIX to Linux RAC environment. Linux Oracle Enterprise servers installation and advanced configuration (Oracle RAC) with IBM 5.x series hardware.

Managing EMC & Pillar SAN storages.

Samba & NFS file Server for sharing files on multiple clients.

Implemented Spacewalk Open Source (redhat Satellite Server) System management application for auto provisioning, software grouping, custom package channel, system inventory, auto deploying patches and monitoring of redhat Servers.

Implemented open source base monitoring tool Nagios 3.0 for servers, SAN switches, EMC SAN Storage and VMware ESX and ESXi.

Administering our production and non-production Linux servers.

Perform security patching of Linux servers

Extensive knowledge on the zoning tools like Cisco Fabric Manager, Brocade Fabric Manager.

Creating maintaininguser profiles, security, rights, Backups of data and Disaster Recovery.

Creating, Mounting and unmounting new File systems.

Supporting the interface needs of new development initiatives.

Environment: Redhat Linux 4,5 and OEL-5.5and 6,Sun Solaris 9/10,Suse Linux 9 and 10 AIX 5.3, SAN, Samba, NFS, VMware ESX and VM ware server,Apache,Tomcat and Jboss, Oracle Cluster, Web sphere servers,EMC Power path and SAN storage.

CGS Linux Administrator

Hyderabd, India April 2009 - Dec 2010

Responsibilities:

Worked extensively on installation, configuration, upgrade and maintenance of redhat Enterprise Linux (RHEL AS 4.x/5.x) on HP Proliant DL 360/380, Dell PowerEdge 6950/2950.d

Installed and configured Signiant Transport Manager Server and Agent software for accelerated file transfer over UDP.

Managing Six VMware ESX 3.0 and two GSX servers for development, and around 24+ virtual machines.

Creating and managing shared disk groups in clustering environment.

Performed Signiant manager and agent upgrade from v7.1 to v8.0.1 onto an enterprise network. Also, implemented SigniantPostgres database vacuum process for improved system performance.

Expertise in Installing, configuring and troubleshooting of Web/Application Servers like Apache, Tomcat, Web Logic, Sendmail, qmail, IMAP and Netegrity Site Minder policy servers.

Done P2P migration and P2V migration from physical to physical and physical to virtual servers.

Installing and configuring Jboss application server in Unix Box.

Installed and configured Veritas Enterprise Netbackup (NB 5.1.3, 6.5.1) and setup policies and schedules for backups and restores. Created RMAN templates for Oracle backups using Netbackup.

Environment:QA, Development and Integration environment consists of HP INTEL / AMD servers HP Proliant DL 380, DL 145, DL 360, DL 580, DL 585, DL 380, ML 370 servers installed with redhatEnterprise Linux 4.0, 5.0 and VMware ESX 3.0/3.5, VMware VM’s with VirtualCenter2.0,Apache,Jobss,HP RISC/Itanium based HP-UX Servers and Tandem Systems,Verotas Volume Manager, Oracle 10G, 11G MySql,Aix 5L, Cacti, Jabber,EMC Symmetrix DMX, Clariion

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