SUMMARY:

• Experienced Red Hat Enterprise Linux 4/5/6 and VMware ESXi 3/4/5 System Administrator with Telephony based Technical Support to assist and provide clients with the best possible uptime and to reliable and accurate communication to get tasks completed.
• Responsible for installation, configuration of Solaris 9/10/11 servers using jumpstart methods.
• Expertise in deploying various Red Hat Enterprise Linux 5/6/7, Windows Server 2003/2008/2012 builds both Physical servers running on CISCO UCS Blades and HP Blades and Virtual on running ESXi.
• Expertise in designing build/configure documentation related to Red Hat Enterprise Linux via Kickstart/PXE and Red Hat Satellite Server/RHN/Cobbler/Puppet
• Experience in RHEL Server provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux, and VMware environments.
• Experience in RHEL Server provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux, and VMware environments.
• Expertise in designing build/configure documentation related to Solaris/Red Hat Enterprise Linux via Jumpstart/Kickstart
• Experience configuring, maintaining NFS, LDAP (PAM), Kerberos, Samba Servers as per environment’s requirements.
• Experience in implementing LDAP to authenticate with AD for centralized authentication.
• Expertise in working on various NetApp based storage environments to configure LUNs as Datastores or Expansion of Datastores in VMware vSphere Environment.
• Experience implementing VMware Virtual Infrastructure environment that consisted of ESXi Server, multiple Virtual Center, vMotion, HA, DRS, VCB, Update Manager, Vcenter, Vcenter cluster and datastore cluster.
• Experience to deploy DNS and AD role on windows 2012 for new data center site building.
• Experience to build Red Hat and/Centos 7 PXE - boot server to deployment of Red Hat/Centos fully automated installation of virtual servers.
• Experience to setup Nagios Monitoring server to setup environment monitoring.

TECHNICAL SKILLS:

Hardware: HP Proliant DL 585 G6/G7, HP C-7000, BL 460 G6/7, Cisco UCS B200’s B250’s M1’s M2’s, Oracle T2’s, T3’s Server

OS: Red Hat 4/5/6, Solaris 9/10 Windows Server 03/08 Virtualization VMware 5 ESXi / vSphere & Configuring DRS, HA, P2V.

File System tools: LVMServers: DNS, DHCP, NIS, NFS

Web Server: Apache

PROFESSIONAL EXPERIENCE:

Confidential, Houston, TX

Linux/Solaris Systems Administrator

Responsibilities:

• Engineer and consolidate the entire Environment from a Solaris 9/10/11 environment to a commodity based VMware ESXi based environment running RHEL 5.x/6.x on Confidential /HP Blades.
• Installed and configured several hundred Red Hat Enterprise Linux Servers in both Physical Blade and VMware ESXi Virtual Environment running on CISCO UCS.
• Setup and Configured Red Hat Satellite, Spacewalk, Puppet/Cobbler and Kickstart Servers for Red Hat Enterprise Linux/CentOS 5/6 installs and RPM Push Updates.
• Used NetBackup for backing up & restoration of file systems
• Create WWID pools, MAC pools and service profiles in Cisco UCS Manager.
• Responsible for capacity planning, design, install and configuration of newly provisioned HP C-7000 Enclosures, HP Rack Servers with ESXi servers running BL 460’s, 620’s and 680’s
• Configuring and Administering NFS, SYSLOG, DNS, NIS, NIS+, SUDO, TSM Packages, LDAP on RHEL server environment.
• Work with application teams to upgrade from RHEL 5.x to 6.x as part the kernel upgrade refresh project.
• Performed Data Center Migrations from Site to Site with multiple physical location, including a physical to virtual migration, utilization of Solaris Containers, Zones, Zone clusters to migrate 2400+ servers as part of the site migration process.
• Set up, configure and trouble shoot TCP/IP, DHCP, DNS; NFS, CIFS, and Samba servers in a multiplatform LAN.
• Administration of servers in the new data center, and subsequent handoff to client support staff.
• Build RHEL servers utilizing templates, custom ISO’s, PowerCLI scripts for SAP refresh project.
• Managed Sun servers T2000 using ALOM, updated firmware on Sun T2000 servers.
• Servers, upgrading HP, Confidential pSeries and SUN Sparc server firmware
• Worked closely with HP, Oracle, Siebel, Veritas, EMC, and other vendors to plan system and software purchases as well as infrastructure design.
• Installation and configuration of Veritas Volume Manager and scanning the disks and bring the LUNS into Veritas Volume Manager Control.
• Install and configure Bonding and SAN storage on RED HAT physical servers.
• Created cron job and scripted a process to create flash archives on monthly basis.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using Satellite Server/Spacewalk.

Confidential, Pontiac, MI

Sr. Systems Infrastructure Administrator

Responsibilities:

• Configure and maintain NFS Servers for both media and data sharing between servers and resolved any shared storage server issues.
• Experience to setup Virtual environment from scratch install configure EXI5.5 hosts and setup data stores
• Operations support Build, Configure, and test ESXi hosts, Deploy Vcenter appliance Servers, configure Vcenter web client to manage data center.
• Successfully manage all physical and virtual infrastructure technologies to provide optimal flexibility and availability
• Maintain and deploy High End applications developed in Java using Tomcat and Weblogic Application Server.
• Provide 24/7 support to Middleware application servers (Weblogic, Tomcat, JBoss), Webservers (Apache) and Database servers
• Create any specific LVM’s for middleware developers as well as Database teams.
• Install configure VVR package on Red Hat to setup three way replication to setup DR recovery.
• Configuring and Administering NFS, DNS, NIS, NIS+ and LDAP on Solaris server environment.
• Create and Setup monitoring bash shell/Perl scripts to monitor system resources, logs, disk usage, scheduling backups and restore.
• Participating in 24x7 Production on-calls Support of Linux and provided technical support to users at remote datacenters.
• Configure bonding on newly build Red Hat server for load balancing and redundant network
• Responsible to deploy new Linux 6 and Solaris10 server for DEV/PROD.
• Firmware upgrade on HP and Dell rack servers.
• Built Server Templates, Performed Snapshots and Cloning of critical Virtual Machines. Installed and maintained numerous virtual machines consisting Microsoft Windows Server/ Linux.
• Administration of servers in the new data center and coordination with offshore team for racking stacking new servers.
• Responsible for the installation, configuration and support of VMware and the daily management/monitoring/performance/data store management of the virtual environment.
• Experience to Build/configure VERITAS Cluster Heart beat, failover IO fencing on multiple node Cluster on RED HAT.

Confidential, MA

Linux Systems Administrator

Responsibilities:

• Solve day to day troubleshooting related to Network, Resource Allocation and Resource Availability.
• Maintained user account management, configured servers to register with Red Hat, Network (RHN) Satellite Server, monitored servers - workload assessment, service console monitoring
• Monitoring Systems Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization.
• Installed Configured and Upgraded Red Hat Enterprise Linux 4.x to 5.x and configured various patching schedules to meet patching criteria quarterly.
• Analyzing, troubleshooting and resolving problems involving operating system issues, application issues, Web site issues, etc.
• Responsible for the installation, configuration and support of VMware and the daily management/monitoring/performance of the virtual environment.
• Support the team in daily operations of Linux/UNIX operating systems.
• Performing tuning and troubleshooting the issues that arise in operations.
• Providing technical and administrative support for Linux systems in a Xen (OVM- Oracle Virtual Machine) virtualized environment.
• Perform system upgrades, improvements and new systems deployment. Monitor and solve operational problems and issues.
• Work closely with Architects and other supervisors in implementing high availability and disaster recovery solutions for various systems and applications.
• Vital QIP (IP Management Tool) to manage customer DNS, DDNS & DHCP. The tool is used to create subnets, networks, DHCP pools, subnet organization.
• Data Center management involving Racking new servers and devices, software installations, troubleshooting, device inventory, switch configurations, managing TSM backups.
• Installing and configuring Red Hat Enterprise Linux 6, Oracle Enterprise Linux 5, VMware ESXi, and Oracle VM 2.2/3.1 (XEN) using Kick start servers and Virtual Media based Installed.
• Installed and configured Redhat/Oracle Enterprise Linux distributions, ESXi and Oracle VM 2.2.3.1 (XEN) on several hundred HP Blades as required for DEV/TST/SUP/UAT/Production Oracle Middleware and Oracle Database Server requirements