SUMMARY

• Experienced specialized in System Administration working on Redhat Linux 4.X, 5.X, 6.x, Solaris environments.
• Extensive experience in installation, configuration and administration of Redhat 4.x, 5.x, 6.x using Kickstart Server, Solaris 8, 9, 10 using Jumpstart Servers.
• Experience in implementing and monitoring High Availability environment using Veritas Cluster Server, Sun Cluster, Redhat Cluster.
• Extensively worked on solaris10 containers, Zones and LDOMS for Virtualization.
• Experienced with teh installation, configuration of RAID volume management using VERITAS Volume Manager and Solstice Disk Suite on Solaris.
• Experienced with teh installation, configuration and volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager).
• Experience in Sun Solaris 10 Container Technology which includes Creation of Zones, Service Management Facilities, Virtualization, Container based, Managed resources for zones.
• Installs, Upgrades, Patches, Configuration, performance tuning on UNIX and system software & hardware.
• Experience in creating physical volume, logical volume, and volume groups using LVM’s in Linux, SVM, GFS (global file system) and ZFS in Solaris.
• Experienced in VMware ESXi 5.x, ESX servers (ESX 3.x, 4.x & vsphere, vCenter), VMotion, Cloning resource pools, snapshots, VM performance monitoring, VMware architecture, design and implementation experience including VMware migrations from 4.0 to 4.1., and from 4.1 to 5.1 migration.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Proficient in Configuring Red Hat Linux into a Puppet Environment for automating administrative tasks and file security.
• Experience in designing and configuring open source management tools Puppet, Chef and CFEngine.
• Extensive Experience in VMware vSphere 3/4/5 version ESXi and vCenter operations Management.
• Experience in SAN environments like EMC Storage Systems EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays & Emulex - QLogic HBA’s and TSM (Tivoli Storage Management).
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, ftp, remote access, security management and Security trouble shooting skills.
• Experience writing shell scripts to automate teh administrative tasks and management using cron and at.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Experienced of working in Data centers with 24X7 Production and On-Call Environments.
• Effective Team player with strong interpersonal and communication skills, Self-motivated, dynamic thinker with sound judgment and solid problem solving skills.

TECHNICAL SKILLS

Operating Systems: Red Hat Linux 4.x, 5.x, 6.x, IBM-AIX 4.x, 5.x.6.x, Sun Solaris 10, 9, 8.

Software: VERITAS File System, VERITAS Volume Manager, Solaris Volume Manage, Solstice Disk Suite 4.x, Logical Volume Manger, Veritas Cluster Server and Veritas Netbackup.

Cluster: VERITAS Cluster Server, Sun Cluster Server, Redhat Clusters and Service Guard

Web/Application Server: Tomcat, Apache, IBM RSA/WAS, Web Sphere

Languages: C ++, Java, VB 6.0, XML, HTML, Shell (bash, C and Ksh), Perl, Php and Python.

PROFESSIONAL EXPERIENCE

Confidential, New York, NY

Sr. Linux / UNIX System Administrator

Responsibilities:

• RedHat Enterprise Linux Operating System Installation, Building Servers and administration of RHEL 4, 5, 6 which includes testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Leading and Mentoring teh Solaris/Linux offshore team and dealing with clients directly. First level of Escalation points for all teh BAU activities delivered by teh team.
• As a Solaris administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
• Solaris Live Upgrade from Solaris 8, 9 and old update from Solaris 10 newer update version across teh whole environment.
• Experience working with Solaris Zones/Containers/LDOMS and new features of Solaris 10, zone reconfiguration and file system layout modification of teh containers supporting teh Sybase and Oracle database.
• Configured and setup LDOMS from teh scratch on T-series harware.
• Installation and configuration of management tool Puppet across RHEL environment.
• Developed teh scripts to push patches, files and maintain configuration drift through teh Puppet tool
• Created Zetabyte file system (ZFS) in Solaris 10. Creating Zones, zpools and adding resources like network, filesystems.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Worked on Disaster recovery of Solaris servers using Sun DiskSuite and Veritas Storage foundation.
• Troubleshooting teh VERITAS Netback up problems like backup issues, Media and Master servers problems and Setting up teh Masters, Media servers and SSO.
• Administering file systems and recognizing file access problems and Disk problems using VERITAS Volume Manager and VERITAS File systems.
• Configured Puppet to teh Linux environment to automate Admins Tasks and secure files.
• Build Yum and RPM repository Server for Development team to upload packages, Written UNIX Shell scripts for monitoring & clean up old files.
• Installing and configuring Apache and supporting them on Linux production servers.
• Configured kickstart server and updating/applying patches to teh servers using Redhat Satellite server.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Configured NIC Bonding on teh servers, created File systems, extended teh Logical Volume space as per teh business requirements.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
• Experience in Developing KORN, BASH, PERL, Python shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Assisted in configuring teh application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.

Environment: Hardware: SUN Architecture T2000, T3000, M5000, v1280, B100S, B1600, e420r, e450, e6900, FAS250, v210, v240, v280, v2900, v440, v480, v490, v880, X4200, V100 and workstations, SUN Ultra Sparc 5/10Software: Solaris 7, 8, 9 &10, VERITAS Netback up 5.1, Vom3.1,4.0, Red Hat Linux 5.x, 6.x, VMware 5.x.

Confidential, Danbury, CT

UNIX System Administrator

Responsibilities:

• Expertise operations support for UNIX infrastructure (AIX & Linux/VMWare/Solaris{L1}), RHEL/HMC/FRAMES/VIOS/VMWARE/Solaris (L1).
• Performed migration from RHEL 4 to RHEL 5 & automated installations of Operating System using kickstart for RHEL.
• Excellent knowledge on LVM configuration (AIX/Redhat Linux),Knowledge of Bash/Shell and Perl scripting.
• Expertise in Knowledge Transition for Unix Infrastructure (Solaris/Linux), Part of Solaris/Linux Design, Project and Delivery Team.
• Perform regular update to teh latest patches for SUN Solaris and Linux machines.
• Installation and configuration Veritas NetBackup on Severs and performing Backup using Veritas Net Backup.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Installation and configuration Veritas NetBackup on Sun Severs and performing Backup using Veritas Net Backup.
• Package deployment in AIX, Linux & Solaris servers.
• Administration & troubleshooting of Solaris 8, 10 servers involving new server build and creation of VERITAS volume manager file systems.
• Monitoring and troubleshooting disk failures in VERITAS VxVM and SVM.
• Building and managing UNIX and LINUX servers on VMware platform.
• Responsible for day to day monitoring and verifying of Unix Systems integrity, using scripts and system logs.
• Performing tape backups, archiving and checking data integrity through Shell Scripts and job automation.
• Designed & Implemented System Security administration policies. Systems security administration policies included: User ID/Group ID management, Password policies, password aging.
• Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application server.
• Involved in supporting and configuring applications on Oracle and MySQL database Environments.

Environment: Redhat 4.x, 5.x, IBM AIX 4.x, Solaris 8, 9, 10, Apache Web Server 1.3.x, 2.x Oracle 8i, 9i2.

Confidential

UNIX System Administrator

Responsibilities:

• OS upgrades, Maintenance level updates, System re-built, Server de-commissioning, LVM-FS modifications, Increase/decrease/remove VG/FS with new disk on co-ordination with SAN team through maintenance window and un-scheduled outages in case of emergency.
• Installing teh software packages and patches.
• Involved in LPAR/DLPAR creation and LPAR/DLPAR move through scheduled Outages.
• Jumpstart &Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Installed Veritas Volume Manager, VCS Cluster Server for failover and for mirroring and raid level configurations on EMC storage frames.
• Experience with VERITAS Volume Manager (VxVM), VERITAS File System (VxFS).
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Key player in Change activities in co-ordination with On-shore team
• Involved in Disaster recovery exercise like San migration, Power outages etc.
• Analyzing teh client servers and providing them suggestions to improve teh performance and stability Provide accurate and timely solutions as per SLA defined.
• Installation and configuration of NIS, DNS, NFS, LVM configuration, RAID 0, 0+1, RAID 5.
• Worked with ActivePerl, PERL 5, UNIX shell scripts, C source code, SQL, and various front end utilities PLUS utilized Oracle & Access as part of teh Utilities process cycle

Environment: Red Hat Enterprise Linux 4.x, 5.x, Solaris 8,9, AIX 4.x, Logical VM, VCS 5.1.