SUMMARY:

• Having 8 years of experience in managing and maintaining large IT environments with emphasis on High Availability and business continuity with UNIX (Sun Solaris 10/9/8) and Red hat Linux (3.x.4.x.5.x.6.x), IBM AIX (5.x,6.x)Centos in diverse environment.
• Worked closely with Software development, implementation and support teams to meet business and technical demands in a production and/or mission critical environments.
• Having good Experience in installation, configuration and Volume/File system management using Veritas Volume Manager(VxVM), Logical Volume Manager (LVM), Solaris Volume Manager (SVM) and RED HAT File System
• Familiarization with ITIL guidelines and practices.
• Configured and used Jumpstart, Kickstart to install OS.
• Experience in working on virtualization, SMF and Zones/ Containers, KVM.
• Plan and Deploying assigned projects, change management, on - call support, and hotline bridge participation.
• Experience in creating physical volume, logical volume, volume groups using LVM’s in Linux.
• Proficient in Networking, configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.
• Experience in VMware Installed and monitored Virtual environments with ESX 3.x servers and Virtual Center 2.X
• Experienced in working with Storage Area Network (SAN), VERITAS Netback up, EMC CLARiiON CX, EMC Symmetrix DMX,VMAX, EMC MirrorView, HP storage and Hitachi data storage.
• Expert in Installation, configuration of Patches and Packages.
• Monitor the availability, health, & resource consumption of our server infrastructure utilizing a combination of tools from HP, VMware, and other vendors.
• Work with Client to develop requirements for a Storage/Back Up and Recovery solution, while considering cost, benefit to the client, and capability of HP to provide the agreed upon solution.
• Experience in MQ Explorer and MQ Mon for browsing messages, putting messages in queue and deletion of messages, taking back of messages
• Assisted internal/external clients with support required to set up new reports/jobs and/or maintain existing reports using SQL and/or UNIX.
• Redhat Linux migration experience - P to V, P to P and V to V Migration.
• Worked on enterprise systems monitoring solutions including LANDesk, Foglight, Solar Winds, SCOM, Nagios, Cacti, Zabbix, Hp site scope, RTview, Autosys
• Experience in providing day-to-day user administration like adding and deleting users and managing users queries.
• Excellent in System performance tuning Configuration
• Sound understanding of IT Infrastructure Administration with project management skills.
• Providing 24/7 technical support to Production environments
• Experience in configuration and testing Disaster Recovery Site.
• Experience in writing Shell/Perl Scripts.
• Technical professional with management skills, excellent business understanding and strong communication skills.
• Good at Project management & Configuration management.

TECHNICAL SKILLS:

Operating systems: Oracle Solaris 11/9/8, RedHat Linux (RHEL 3.x/4.x/5.x/6.x), Windows 2003/2008IBM AIX (5.x,6.x), Centos 6/7

Server hardware: Excellent Hardware skills on Sun Fire 3800/4800/6800, V120/V240/V440/V480/ V490/V1280/V880/V890,Sun Enterprise 250/220R/420R/2900, E10K, E25K HP Proliant DL 585/360/385/585 G2, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, T-Series M-Series, IBM e-Server Regatta P690, P570, RS6000, I BM/HP/DELL Blade Servers

Storage hardware: Symmetrix DMX 800/1000 / DMX-2 / DMX-3 & EMC CLARiiON FC and CX Series, FC JBOD, Brocade FC Switches, Net App Filers,VBlock Qlogic and Emulex FC HBAs, Brocade silk worm 3200, 3800,48k, iSCSI/ FC Storage arrays, RAID Storage arrays, DLT and LTO Tape Libraries, Commvault backup, Hitachi enterprise systems,Symantec netbackup 6.5,7.0

Cluster Solutions: VCS 4.0 & 5.0 with CFS & GCO, HACMP, Redhat Cluster Suite

Scripting language: Ksh, Perl, Bourne shell, xmlData Base: Oracle8i/9i/10g, MS SQL Server, DB2,Sybase, RAC, RDBMS, SFRAC

Web applicationServers: Web Sphere, HTTP, Apache1.2,samba,JBOSS,Zimbra mail servers, Iplanet.HTML, XHTML, Tomcat, IBM, JVM, J2EE,JDBC, Web Logic, JACPS TAM (Tivoli Access Manager),Tibco,AbIntioNetworking Services: NIS, NFS, AutoFS, DNS, SSH and Sendmail.

Ticketing Tools: Remedy, RedBox, Service Centre, HP service manager and OPAS

Protocols: TCP/IP, UDP RIP, SOAP, EIGRP, IGRP, SNMP, SMTP, TELNET, HTTP

Monitoring Tools: Nagios, Cacti, Zabbix, Hp site scope, RTview, Autosys

PROFESSIONAL EXPERIENCE:

Confidential, Pittsburgh

Unix/Linux System Administrator

Responsibilities:

• Responsible for System Administration for Solaris, Red hat Linux, IBM AIX Servers.
• Responsible for the, maintenance and monitoring of development & testing equipment running Red Hat Linux. Troubleshooting with development teams, making OS changes, testing changes and documenting changes for hand off to production teams.
• Installed, upgraded, Mirrored and configured RHEL 3.x, 4.x, 5.x, and 6.x on VMware, HP Proliant servers and dell servers.
• Installation of software packages (r.p.m.) and checking the integrity of the installed packages.
• Project lead providing capacity planning and performance tuning support of all Solaris and Linux systems
• Customize scripts to kickstart RHEL systems; setup other automations to streamline repetitive administration.
• Documented and automated Redhat Linux installations through kickstart and yum, Troubleshooting Linux networking and performance issues
• As Unix/Linux Administrator in Mediacom Communications, part of Data Center Migration Team, managed migration from Solaris to red hat linux for various applications using SDLC standards.
• Assist with the planning Data center migration projects and SAN migration
• Worked on Redhat Cluster Suite(RHCS) and Oracle RAC for creating high availability and load balancing cluster.
• Developed Shell scripts for system administration and monitoring tasks.
• Worked on creating a DR plan and recovery process making sure that critical applications are set up with HA in case of a disaster.
• Redhat Linux migration experience - P to V, P to P and V to V Migration.
• Configure, monitor, and manage physical storage and file systems on LINUX servers.
• Advanced Skill level in LDAP/OpenLDAP configuration and support.
• Security hardening and event monitoring (Nagios, CACTI, Solarwinds).
• Experience Deploying VMware, version 5 and 6

Unix/Linux System Administrator

Responsibilities:

• Responsible for the engineering, maintenance and monitoring of development & testing equipment running Red Hat Linux. Troubleshooting with development teams, making OS changes, testing changes and documenting changes for hand off to production teams.
• Project lead providing capacity planning and performance tuning support of all Solaris and Linux systems
• Customize scripts to kickstart RHEL systems; setup other automations to streamline repetitive administration.
• As Unix/Linux Administrator in Mediacom Communications, part of Data Center Migration Team, managed migration from Solaris to red hat linux for various applications using SDLC standards.
• Develop, implement, test and document best practices/standards
• Responsible for completing backups and restores, maintenance / upkeep and monitoring environmental integrity of the backup environment running NetBackup 7.0.1.4 for 8 Data centers in the United States. This includes, trouble-shooting, patching and new installations.
• Managed multiple HP hittachi SAN storage units and monitored commvault backups for petabytes of storage.
• Worked on creating a DR plan and recovery process making sure that critical applications are set up with HA in case of a disaster.
• Redhat Linux migration experience - P to V, P to P and V to V Migration.
• Configure, monitor, and manage physical storage and file systems on LINUX servers.
• Advanced Skill level in LDAP/OpenLDAP configuration and support.
• Security hardening and event monitoring (Nagios, CACTI, Solarwinds).

Software Support Analyst

Responsibilities:

• Installation, Configuration and upgrade of Solaris, Linux and Windows operating systems.
• Design and Implementation of enterprise servers with high availability.
• Experience in building new environments and upgrade the existing environments to the new code and release to the test team and support their test.
• Built servers according to standards specified as per individual applications.
• Installed, upgraded, Mirrored and configured RHEL 3.x, 4.x, 5.x and 6.x on VMware, HP Proliant servers and dell servers.
• Worked on enterprise systems monitoring solutions including LANDesk, Foglight, Solar Winds, SCOM, Nagios, Cacti, Zabbix, Hp site scope, RTview, Autosys
• Participate in project planning sessions, execute project tasks, troubleshoot and resolve problems.
• Reviewing system log files for errors. Setting up CRON jobs for backups and monitoring process.
• Creating new file systems, managing and checking data Consistency of file systems, Administration and auditing the SUN servers, Linux servers and installation of the patches on production and development systems.
• Maintain and create documentation related to servers, storage, and other datacenter systems .
• Experience in working on virtualization, SMF and Zones/ Containers
• Test Environment set-up, Unix scripting, health check-outs of applications and servers
• Configuration mgmt and Troubleshooting . Redhat Linux migration experience - P to V, P to P and V to V Migration
• Different team interface and coordination for in-scope activities
• Demonstrated Team play during the major outage and helped in releasing the environment to the clients.
• Experience in patching the servers as per the Patch Cycle Schedule.
• Day-to-day issues are handled through Remedy ticketing system, Service mangment and Virtual Ticket.
• Working On-Call rotations.

Linux system administrator

Responsibilities:

• Worked with various networking protocols such as TCP/IP, SNMP, HTTP, FTP, SMTP, SSH, Telnet and UNIX operating systems, utilities, tools and applications is required.
• Experience operating a Scientific Atlanta DNCS system and Video on Demand systems in an ISA environment is desirable.
• Part of Unix administration team managing Solaris/Linux suse enterprise edition 9,10 with SUN/IBM/HP/DELL hardware in 600+ server environment in fast paced busy production environment
• Responsible for System Administration Linux/UNIX, Migration, VMware
• Administration and maintenance of Red Hat Linux servers. installing and configuring of apache web server, iplanet, web server.
• Assist with the planning Data center migration projects and SAN migration.
• Worked as System admin with distributed database systems, Oracle and SQL, file systems and disks, database structures
• Worked on enterprise systems monitoring solutions including LANDesk, Foglight, Solar Winds, SCOM, Nagios, Cacti, Zabbix, Hp site scope, RTview, Autosys
• Specific applications and devices support and maintained include: Scientific Atlanta DNCS, Application Server, TED Server, XOD Server, BIG QAM Modulator, QPSK Modulator/Demodulater, Explorer set top box, CableCARD devices, Tandberg/Mystro BMS, Tandberg AMS, Storage Array and all associated devices and components
• Participate in project planning sessions, execute project tasks, troubleshoot and resolve problems.
• Actively working with the Vendors in replacing the server hardware like DIMMS, Array Battery, Power supply cords and faulted disk arrays.
• Actively involved in Installing, upgrading and configuring SUN Solaris 9 and 10 on sun Servers using jump start and involved in installation of kick start in Red Hat Linux ES 4.x
• Worked with Boerne scripting and added the entries in the crontab for taking differential and full backups of UNIX file system into and from tape to disk, restored it when the system corrupted.
• Performs software upgrades to applications running on the above devices in a manner consistent with Time Warner Cable’s change-management procedures.
• Interface with various departments with various technical levels to coordinate service activation and troubleshoot product performance issues, including Billing/IT, Marketing, Corporate, Customer Service, Technical Operations, Engineering/Maintenance, equipment vendors and contractors.
• Product, maintain and analyze reports for storage capacity, system capacity and reliability.

Unix/Linux OS analyst & Infrastructure lead

Responsibilities:

• Installed, upgraded, Mirrored and configured RHEL 3.x, 4.x, 5.x, and 6.x on VMware, HP Proliant servers and dell servers.
• Installation of software packages (r.p.m.) and checking the integrity of the installed packages.
• Experience in Oracle Real Application Clusters (RAC) system, Red hat Cluster builds, initialization, troubleshooting and managing application environment.
• Network administration such as local LAN & W-LAN connectivity. TCP/IP, iLO configuration for the physical systems.
• Monitor the availability, health, & resource consumption of our server infrastructure utilizing a combination of tools from HP, VMware, and other vendors.
• Participating in Linux migration assessments, acquiring requirements from business partners regarding the hardware and software of the new servers built for migration.
• Experience in HP-service manager and HPOO flows. Work towards creating change records for the new Linux servers to be built.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Extensively using iDRAC, iLO2 for console monitoring and maintenance
• Creating servers definition files to build the OS and deploy the scripts customized to the environment.
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files using access modes and Written Shell scripts to run Batch Jobs on Sun Solaris and Redhat Linux servers..
• Interacting with hardware, performance, network, SAN, VMware and other teams in order to configure and ensure server readiness.
• Identify the issues during the migration from HP-UX, to Linux.
• Contact Application owners regarding applications’ installation and provide OS support to the STOs.

Unix System Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Linux, Sun Solaris servers.
• Performed automated installations of Operating System using kickstart for Linux.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Installation and configuration of Veritas Storage Foundation Suite::Veritas Volume Manager, Veritas File System.
• Management of RedHat Linux user accounts, groups, directories and file permissions.
• Configured PowerPath for SAN devices and Performed Disk management with the help of LVM (Logical Volume Manager).
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks
• Created File systems from local storage as well as NFS partitions for application portability
• Installing, administering Redhat using Xen, KVM based hypervisors.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Extensively using iDRAC, iLO2 for console monitoring and maintenance.
• Configured the crash dumps on the servers and also installed second SSHD on all the servers for allowing Generic Users to perform data migrations.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using HP Service Manager.
• Designing Firewall rules for new servers to enable communication with application, Oracle 11i servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned I/O, memory, etc.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/580 G5 servers, and HP BL 465C G5 blade centers).
• Update the Redhat entitlements for all the Redhat servers.
• Extensively used Dell Open Manage to perform administrator of Remote DELL Servers.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.