PROFESSIONAL SUMMARY

• Over 10 years of professional experience as a System Administrator with experience in operating systems dat include Solaris 8, 9, 10 and RHEL 4.x,5.x and 6.x, HP UX 11i.v1, 11i.v2, 11i.v3 and Windows NT, 2000, 2003, 2k8,2012 platforms.
• Experience in implementing virtualization using VMware ESX 3.5 / vSphere 4.0, 5.0, 5.5 Solaris zones, Oracle OVM and KVM Server.
• Experience in the implementation of High Availability using VERITAS Cluster Server.
• Experience in implementing and configuring of disk space management and RAID using Logical Volume Manager, Sun Volume Manager, VERITAS Volume Manager 3.x, 4.x, 5.x and RAID controller cards.
• Expertise in configuring of 3 - Tier architecture dat included Web Servers like Apache 1.3.x, 2.2.x, Application Servers dat included Web Logic 8.x, 9.x, 10, JBoss 3.x, 4.x and DBMS like Oracle 8i, 9i, 10g and SQL Server 7 / 2000, 2003
• Experience in the implementation of naming services like DNS, NIS and LDAP
• Responsible for capacity planning, including allocating storage, providing hardware and software redundancy, and planning future expansion requirements
• Experience with high-end enterprise servers Sun cool thread T2000, T6320,Sun EnterpriseM3000, M5000,Sun Midrange 4500, 6500, V480, V490, V890,E220, E4900, Sun Entry Level x4100, x4200, x4250, x4440, V440 Dell Poweredge Servers 1750, 1850, HP DL 380, 385, 580, 585, c3000, BL600c.
• Good noledge of backup solutions using EMC legato Networker.
• Experience in Shell scripting using sh, ksh, bash and Python
• Experience in Performance Monitoring of CPU, Memory, Disks, Network.
• Extensive experience with Troubleshooting of issues with applications, network, user, hardware, naming services etc.
• Experience in patching all Linux Servers using Redhat Satellite Server setup.
• Very good experience with documenting software usage procedures, network diagrams and project documentation.
• Maintain Web servers, file servers, firewalls, and directory services, and set up user accounts.
• Experience in Writing status reports, technical diagrams, and flowcharts.
• Excellent communication skills.

TECHNICAL SKILLS

Operating Systems: SOLARIS 8/9/10, Redhat Linux 4.x/5.x/6.x/7.x, HPUX 11i.v1/11i.v2/11i.v3, Windows 2000/2003/2008 Server Family & Professional, Windows 95/98/ME/XP/Vista/Windows7

Hardware: Sun cool thread T2000, T6320,Sun EnterpriseM3000, M5000,Sun Midrange 4500, 6500, V480, V490, V880, V890,E220,E4900, Sun Entry Level x4100, x4200, x4250, x4440, V440,420R, Netra T1DELL Poweredge 1350, 1750, 1850, 2850, 6450, HP Proliant DL 360G2, DL 360G5 and DL 580, 585G2,c3000, BL 600c,DLT, AIT, DAT & CTD Backup Devices, Jukebox, Ethernet Hubs, Repeaters, Routers, LAN Testers, Cable Modems, Terminal Servers and Print Servers, DLT/DDS drives, Sun StorEdge 3510, 7110, A1000, A5200, D1000, EMC Symmetrix 8830, DMX 3, 4 arrays.

Volume and Server Management: SOLARIS VOLUME MANAGER, LOGICAL VOLUME MANAGER, VERITAS VOLUME MANAGER, ZFS and VERITAS Cluster Server Management.

Languages: PL/SQL, Shell Scripting - ksh, sh and csh, Python

Data Base Servers: Oracle 8i,9i, 9.2.x,10g on Solaris and Red Hat Linux and Win NT/2000, MS SQL 7, 2000 on Win NT/2000, Sybase 12.5

Networking Protocols: SNMP, SMTP, TCP/IP, IPX/SPX, NetBEUI, OSPF, BGP, IGRP, EIGRP, PPP, SLIP, UUCP, X.25, LAN, WAN, PCNFS, ARP/RARP, FTP/TFTP, RIP, DHCP, DNS, NIS, NIS+, Automounter.

Configuration Management Tools: Chef, Puppet

Virtualization Technologies: Oracle OVM, KVM, VMware ESXi

PROFESSIONAL EXPERIENCE

Confidential, Los Angeles, California

Senior System Administrator

Environment: Red Hat Linux, Oracle Solaris, Oracle Enterprise Linux, Oracle

Responsibilities:

• Installation, Configuration, and OS upgrades on RHEL 5.X/6.X, SUSE 10.X, 11.X.
• Implemented and administered Oracle VM Virtualization Environment for running the Windows, Centos, SUSE and Red Hat Linux Servers for production, development and testing purpose.
• Creating volume groups, Logical volumes and extending them using LVM.
• Working with HP XEN Blade Servers. Attaching disk space from DL-360 blade servers to VMs.
• Working with SAN team for exporting shared volumes and mounting shared volumes.
• Responsible for configuring networking concepts like NIS, NFS, SAMBA, LDAP, SSH, SFTP, SNMP, DNS, DHCP, troubleshooting network problems such as TCP/IP, supporting users in solving their problems.
• Configuring, Managing and Scheduling CRONTABs for App Accounts and Backup management on a regular basis.
• Installed and configured Apache WebServer.
• Installed and deployed WebLogic Application Servers (WAS).
• Developed scripts for automating administration tasks like customizing user environment, and performance monitoring and tuning with nfsstat, netstat, iostat, and vmstat.
• Created Bash shell scripts to monitor system resources and system maintenance and performed administrative tasks such as System startup/shutdown and Backup strategy.
• Created Disk groups, initialized physical disks to create a Veritas File System (VxFS).
• Import and Deport disks into a disk group depending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Preparing servers for Oracle RAC installation, which includes creating ASM disks, kernel tuning, agent installation, adding NAS storage.
• Managed the User and Application Account creations, deletions, and setting up sudo access for DBA and application account access.
• Experience with running SQL queries on Oracle and MySQL.
• Administered security, users, group administration and daily backup and restore operations, networking service, performance and resource monitoring and Performed disaster recovery management procedures.
• Experience in patching of Linux and Solaris servers.
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications.
• Worked with DBA team for database performance issues, network related issues and with vendors for hardware related issues.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Configuring and troubleshooting LAN and TCP/IP issues.
• Managed shared NFS, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.

Confidential, Columbia, South Carolina

System Administer

Environment: RHEL 5, 6, 7, ESXI 5.5, ORACLE EXADTA, LVM, Veritas Netbackup6.5, Oracle 10g and Power path

Responsibilities

• Managed 500 Linux servers with 1 PB of Storage and 100 users.
• Deployed VM on ESX host and Oracle Linux VM’s on ORACLE EXALOGIC.
• Supported 100 Users on Linux, Centos and Ubuntu Operating Systems
• Installation of Red Hat EL 4.x, 5.x using Kickstart and PXE on HP DL380 G3.
• Upgrade firmware RHEL 5 to RHEL 6
• Configured satellite server for patching servers.
• Configured Processes and Process management using Crontab
• Migrated and performed backups using rsync
• Created User accounts management and authentication.
• Created RHEL Web servers, mail servers, database servers VM in ESX Host 5.5.
• Created Apache Web Server, FTP Server and NFS Server Configuration
• Install Tomcat7 to support Java developers
• Installing and upgrading the kernel, checking and understanding kernel version
• Performed zoning on fiber channel switches and allocated storage to Linux servers from EMC VNX.
• Configured virtual network in Vmware and Linux servers.
• Knowledge about Advance Linux Network and SElinux, Network Security enforcement.
• Installed Apache web server installation and configuration.
• Jumpstart and Flash Installation of RHEL 5.6, 6.x on ESX 5.0, 5.5 for testing, production and disaster recovery setup as required.
• Performed access control and package management using rpm and yum
• Performed Backups using VMWARE VDP Backups of Linux VM’s.
• Patch and Package administration to keep the servers updated with the patches and dat implementing packages developed for deployment
• Activate Monitoring on a regular basis to ensure systems loads and performance are not being effected by processes or odd user activity.
• Experience with remedy ticketing system.
• Controlling the System Logging services, and examining system log files
• Creation and administration of software packages and checking the integrity of installed packages using native rpm on Redhat servers.
• Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization.
• Day-to-day functional administration tasks, as well as application-specific technical support.
• Server decommissioning and deployment activities

Confidential, Providence, Rhode Island

Linux Administrator

Environment: Solaris, RHEL, Veritas Cluster Server 5.0, Veritas Storage Foundation 5, ECC and Powerpath, Microsoft Windows 2003VMware ESX 4.0, vSphere 4.0, VMware Converter 4.0, vCenterServer 4.0, Sun Servers

Responsibilities:

• Provisioned x86 and SPARC based cool thread servers using Jumpstart and upgraded from Solaris 9 to Solaris 10 using live upgrade and provisioned RHEL 4.x and 5 servers using Kickstart.
• Configuration of LDOMs on Sun cool thread T series servers.
• Implemented sparse root and whole root zones based on the application requirements and migration of services to SMF.
• Created ZFS file systems using zpools and performed tasks as creation of zpool with mirrored layout, cloning of zpools, performing snapshots etc.
• Installed and configured VMware vSphere 4 on remote HP-Proliant DL 360G5 Servers using ILO and installed Windows 2003 server and RHEL 4.x, 5 as the guest operating systems. Configured virtual machines and administered them using vSphere 4.0, vConverter and vCenter Server 4.0. Performed physical machine to virtual machine (P2V) using VMware infrastructure client.
• Collaborate on monitoring and troubleshooting Servers using various third party tools like Nagios.
• Installation and configuration ESX hosts. Making new virtual machines, with Linux Redhat server, making templates, cloning VMs using VMware Virtual Client 3.5.
• Managed users, disks, groups administration, File Sharing Permissions, backup and restore operations, and networking service.
• Automate configuration through Puppet.
• Involved in SAN migrations at host level using LVM mirroring and SVM Mirroring.
• Installing Redhat Linux using Kick start and applying security policies for hardening the server based on the company's policies.
• Worked on VERITAS Operations Manager (VOM).
• Administering Network File System and administering user and OS data files in NIS, and NFS environment on both Redhat Linux and Solaris environments.
• Maintained Volumes and File systems using Veritas Storage Foundation 5, SVM on Solaris and LVM on Linux.
• Installation and support of the of Oracle 10g RAC on Solaris 10 and RHEL 5.x
• Installed and configured High Availability using Veritas Cluster Server 5.0
• Configured ILO, upgraded Firmware and racking of HP-Proliant DL360G2, DL360G5 & DL 585G2 Servers.
• Provided 24x7 on call and remote support for UNIX Production Problems and responding to users’ tickets from Remedy.
• Proactive maintenance / remediation in a timely manner by upgrading patches to the systems and applications
• Setup user and group login ID's, password and network configuration.
• Developed bash shell scripts to automate routine activities.
• Shell scripting in ksh and bash to automate the repetitive administrative tasks.
• Documenting processes and troubleshooting scenarios on runbooks.

Confidential

System Administrator

Environment: Solaris, Redhat,, Dell Servers, Sun StorEdge A5200, 3510, Oracle9i, WebLogic 8.1, HP open view, Veritas Netbackup 5., VeritasVolume Manager 4.1, VERITAS Cluster Server 4.1, NIS, NFS, DNS

Responsibilities:

• Plan, Schedule and execute upgrades of Solaris 9 to Solaris 10, provision Redhat servers using Kickstart. Upgrade systems to latest OS, and firmware patches.
• Installation and upgrade of Veritas Volume Manager 4.x and creating plexes, volumes using RAID layouts for better availability of the file systems.
• Building and maintaining a Solaris JumpStart Server capable of jumpstarting Solaris 8, 9 systems, providing a baseline configuration on all servers and allowing custom configurations.
• Implementing DNS servers using BIND on Redhat servers.
• Implementing NIS naming services including the creating of Master and Slave servers and updating the maps.
• Supported 24x7 web hosting platform for billing applications running on Solaris 8, 9 utilizing IBM HTTP Server 6.0 (Apache), WebLogic 8.1 application server. Creating and implementing SSL certificates for the domain, creating virtual hosts, configuring Apache web servers and configuring mail servers.
• Configuring LUNs on storage devices like Sun StorEdge A5x00, 3510 and bringing them under VxVM control using Veritas Volume Manager 4.1
• Implementation of High Availability using Veritis Cluster Server 4.1 for Oracle Agents.
• Implementation of SSH for secure transfers and implementation of PKI between servers to enable password less logins between servers.
• Installation, configuration of Veritas Volume Manager & Veritas File System.
• Created disk groups, volumes with RAID architecture and layered volumes using VxVM.
• Installation, configuration and administration of Veritas Cluster Server. Configured new service group & resources for new application in Veritas Cluster Server.
• Built high-end servers, creating and loading images on Solaris Linux servers using System Imager tool.
• Customizing TCP/IP, FTP, SSH and SSL to enhance security and performance.
• Extensive shell scripting using korn shell, awk and sed to monitor systems and application availability.
• Supporting Veritas Netbackup 5.0 environment by working in co-ordination with the backup team to install Netbackup clients and troubleshooting any issues with backups.
• Creating documentation and VISIO of all the changes in systems and web applications.