Summary

• Experience in supporting Amazon AWS Cloud environment with 200 instances running Linux and Ubuntu.
• Over 7 years of experience in Administration of Linux Red Hat Linux, SUSE, Ubuntu OEL, Unix Solaris HPUX and windows XP/Vista/7,2003/2008, .
• Experienced in Installing, configuring and administering Red Hat Linux /4.0/5.x/6.x SUSE Linux 9/10/11 running on Dell, IBM and HP x 86 Servers.
• Troubleshooting, documenting and knowledge transferring of Double Take process to the BUs.
• Creating and managing Virtual Machines and Templates, worked with clones and snapshots of Virtual Machines.
• Identification, planning and migration of P2V candidates and new builds from each sites without any downtime.
• Expertise in System performance tuning, capacity planning and Disaster Recovery planning.
• Experience in network administration, deploying and troubleshooting of DNS, LDAP, NIS, NFS and DHCP etc.
• Good experience and understanding of SAN SAN arrays HITACHI, EMC technology including zoning, disk creation on various systems, maintaining and configuring various fiber switches and storages.
• Design and Implementation of migration strategy for consolidating Data Centers from around the world to two centralized locations in US which involves 6000 servers of various Windows versions.
• Worked with Backup Team to Configure the Master and Client Backup servers Using VERITAS Net Back up 4.5/5.0
• Performed Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Configuring Kickstart Servers and booting the images using PXE in Red hat Linux RHEL and Jumpstart in Solaris.
• Installed OS by using Kickstart, NIM and Ignite methods.
• Mobile cloud setup and administration.

TECHNICAL EXPERTISE:

• OS: Redhat Linux 4/5/6, Solaris 8/9/10, HPUX 11i V1 V3, VMWare ESX 3/4/5, SUSE 9/10/11, Ubuntu, Windows- XP, 2003 2008 server, WIN7 .
• Hardware: HP Proliant DL 360, 380 G3, G4, G57 G6, HP Blade Centers C6000, C7000, SunUltraEnterpriseServers E3500,E4500,E450,E420R,M4000,M5000,T2000,T5120,T5220,T5220,T5240 Sunfire 15000/6800/4800/3800/ v880/V480/V240/V210/ V440/280R , Sun workstations Ultra 5, 10, 20,80 Blade 100,150, 2000
• Server Monitoring Tools: HP Open view, Nagios,HP Sitescope
• Networking: DNS, DHCP, NFS, FTP, NIS, Samba, LDAP, Open LDAP, SSH, Apache,
• Virtualization: VMware infrastructure client, workstation, Converter standalone client,
• Microsoft virtual PC and Linux virtualization, VSphere, Zones LDoms
• SAN: EMC Clariion, EMC DMX, NetApp filer and HDS AMS Arrays.
• Volume Management: Redhat LVM, Solaris Volume Manager, Veritas Volume Manager, ZFS
• Tools: VERITAS Cluster Server 4.1, 5.1, VERITAS Volume Manager 4.0, VERITAS File Systems, Solstice Disk Suite, VERITAS Net-Backup 5.0, and Remedy 6.0, 7.1, JVM, Bash, Ksh, Perl.

Education: Bachelor's of Technology Andhra University, India.

PROFESSIONAL EXPERIENCE

Confidential

Sr. Unix/Linux Administrator

• Build server for mobile cloud setup using various vendor tools like Perfecto Mobile, Mobile Labs-Device Connect and Eggcloud.
• 24/7 on call support for production environment.
• Performed various file system changes ti accommodate upgrades in applications, services and databases.
• Installed and setup VMs and VCenter to support varipus requirements from the clients.
• Managed all the labs under mobile first meta platform.
• Involved in managing virtual Redhat Linux servers on VMware ESXI4/5.
• Configured and setup HA solutions for various applications.
• Creating user accounts, user administration, local and global groups
• Installing, configuring, and administering DNS, NFS, NIS, Mail servers, FTP servers RPM servers
• Configure dynamic and static network settings for IPv4 and filter packets.
• Supporting application servers like Weblogic and front end Webservers like Apache.

Confidential

Sr. Unix/Linux Administrator

• Build servers, configured, installed tools, installed patches and transitioned servers to production support running Linux Redhat, SuSE and Ubuntu on HP Dell X86 HW.
• Experience Building Servers using HPSA and involved in configuration management using Puppet.
• Regular Admin Tasks include building Linux servers for Production, Development and Test Environments and supported the ones under production.
• Managed all the labs and very familiar with all the server related hardware.
• Experience all the network configuration on the servers.
• 24x7 on call support for production environment.
• Installed and upgraded SUSE 11.3 on various servers.
• Managed and built VMs and expert in VMware.
• Performed various file system changes to accommodate upgrades in applications, services and databases.
• Worked in Mission Critical Production environment that deals with OS level issues through the Enterprise.
• As a system administrator in a large team is responsible for maintaining a linux operating systems like Suse 10/11.
• Successfully upgraded SUSE 10 to 11 on Oracle production standby servers.
• Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
• LDAP configuration and management.
• Good knowledge in structuring the documentation for Architectural Design and Build Plan Documents.

Confidential

Sr. Unix/Linux Administrator

Responsibilities:

• Build servers, configured, installed tools, installed patches and transitioned servers to production support running Linux Redhat, SuSE and Ubuntu on HP Dell X86 HW.
• Supported Amazon Cloud AWS EC2 instances running Redhat Linux CentOS using Elatic IP and Elastic Storage and familiar with creating Security Groups for AMS Instances.
• Experience supporting Redhat Cluster and Oracle RAC environment running Oracle databases in High Avaiability.
• Involved in automation of Linux, HPUX and Solaris builds using kickstart and jumpstart.
• Experience creating and managing HP Proliant DL G4, G5, G6 G7, C7000 C6000 Blade Centers.
• Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
• Experience in automation using scripts in Perl and also shell bash and korn .
• Involved in managing Virtual Redhat Linux servers running on VMWare ESX 4/5.
• Experience performing SAN provisioning to Linux and Solaris servers from EMC SAN arrays VNX and Clariions.
• Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, removable media and configure NFS shares with AutoFS.
• Experience in SAN migrations at Host level on RHEL, HPUX and Solaris servers using Open Migrator, Open replicator and RHEL LVM and Veritas commands.
• Experience supporting single sign on authentication using LDAP on Linux environment.
• Configured Kick start, Jump Start NIM servers to install Red Hat Linux, Solaris and IBM AIX on multiple machines.
• Experience in building Oracle Virtual Machines.
• Experience configuring LDAP clients and performing activities like user administration using LDAP.
• Involved in virtualization with VMWare ESX vSphere 4.1 and created VM's and performed P2V and P2P migrations and involved with Solaris 10 Virtualization using LDoms and Zones.
• Supporting application's like JBoss and Weblogic along with Front end webservers like Apache.
• Installed patches to latest patch level, applied patch cluster and installed software packages as needed.
• Experience working with Java applications like Weblogic, Websphere and JBoss and performing JVM installations and upgrades in weblogic environment.
• Monitoring the hosts and networks using Iostat, VMstat, MPstat and Other Tools
• Creating user accounts, user administration, local and global groups on Solaris and Red Hat Linux platform.
• Experience working Solaris Zones/Containers and new features of Solaris 10, zone reconfiguration and file system layout modification of the containers supporting the Sybase and Progress database.
• Disk mirroring and RAID implementation using VERITAS Volume Manager and Solaris Volume Manager.
• Experience working with configuration management tools like puppet.
• Installed VERITAS Volume Manager and Powerpath on Red hat Linux servers.
• Security implementation through ACL, RBAC and TCP Wrappers.
• Installing, configuring, and administering DNS, NFS, NIS, Mail servers, FTP servers RPM servers on Sun Solaris and Red Hat Linux platforms.
• Installation and maintenance of Syswatch Monitoring tool in Solaris Server, wring core rules to various Solaris servers.
• Resolving regular tickets on Hawk, Syswatch and ping probe Monitoring tools using sitescope.
• Configuring Solaris Zones in Solaris 10. Creating Whole root zone, Sparse zone and implementing branded zones, zone cloning , zone migration .
• Controlling the System Logging services, and examining system Log Files of all system events.
• Firmware upgrade on T2000, T5220, T5240, T5120 and T5140 and VTM patch on Solaris ervers.
• Responsible for troubleshooting and maintenance of VERITAS cluster under Solaris 10

Confidential

Sr. Systems Administrator Linux and Solaris

Responsibilities:

• Worked in Mission Critical Production environment that deals with OS level issues through the Enterprise.
• Experience managing user administration with Open LDAP and proficient using command ldapsearch, ldapadd and ldapdelete.
• Regular Admin Tasks include building Linux servers for Production, Development and Test Environments and supported the ones under production.
• Involved in building Linux VM's using VM templates and kickstart servers to build multiple servers over the network.
• Experience in managing EMC arrays and provisioned SAN disks to Linux and Solaris arrays.
• Performed OS upgrades for critical servers under production.
• Experience in creating file systems on LVM, VxVM on Redhat Linux and HPUX.
• Performed various file system changes to accommodate upgrades in applications, services and databases.
• Experience configuring Open LDAP and setting up clients for Open LDAP.
• Involved in decommission of the servers which reached end of life and performed SAN migrations using LVM and EMC tools.
• Provided support for 2000 SUSE linux servers.
• Maintained OS/APP backups for Linux and Solaris servers
• Managed critical bundles and patches on the production servers after successfully navigating through the testing phase in the test environments.
• Implemented scripting new by writing shell scripts and perl scripts and scheduled those by using cron.
• Worked on the virtual environments through the virtual ware clients like VMIC/ VSphere.
• Responsible for evaluating Storage Foundation Cluster File System for possible production use.
• Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
• Manage software on system using YUM, and RPM.
• Worked on the Java based applications and supported JVM's and worked on issues related to Java and patching regularly with weblogic and Jboss applications.
• Worked with HP Integrated Lights Out iLo software in effectively managing the server under cluster environment.
• Implementing file sharing on the network by configuring NFS/SAMBA on the system to share essential resources.
• Good knowledge in structuring the documentation for Architectural Design and Build Plan Documents.
• Managed Disks and File systems using LVM on Linux.
• Performed day to day health check and maintained the servers by taking the down time from the users.
• Performed configuration and troubleshooting of services like NFS, NIS, DHCP, FTP, LDAP, Web servers Apache , Samba servers
• Installation of Cent OS 4.x manually and upgrading through YUM installation.
• Provided afterhours and weekend support to facilitate the issues in the production environment.

Confidential

Systems Administrator

Responsibilities:

• Worked in a huge enterprise environment with 250 Solaris servers.
• Experienced in the installation, support, configuration and maintenance of Sun Servers/workstations.
• Installing, upgrading and configuring Solaris 9, 10, AIX 5/6, Red hat Enterprise Linux 4, 5.1
• Worked with MySQL database installations and configurations.
• Experience supporting EMC Arrays like VNX, Clarrions and VMAX arrays.
• Created documentation for technical details on hardware and networking.
• Worked in 24/7 support environment for network and systems support.
• Experience in scripting. Implemented shell and perl scripts for log rotation and monitoring.
• Utilization and Implementation of VMware at the full implementation range using the complex features of VMware connectivity with SAN, HA and DRS configuration. Worked on V-motion in VMware.
• Installing and Configuring nodes on a VERITAS Cluster in a SAN environment, adding VCS agents for Oracle, Sybase, troubleshooting fail over issues , resource management .
• Worked in deploying Linux and Windows virtual machines in VMware. The implementation involves SAN connectivity with VMware.
• Performed multiple Linux kick start installation both on VMware and physical servers
• Configured and distributed virtual machines on different hosts and configured v-motion. Performed template installations.
• Performing p2v migrations in Windows and Linux OS.

Confidential

Linux/Unix Systems Administrator

Responsibilities:

• Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers using Jump start.
• Plan and implement assigned projects, change management, on-call support, and hotline bridge participation.
• Installation and monitoring of Zone File System, Veritas Volume Manager, Veritas Net Backup.
• Troubleshooted various problems when working with VxVM in initializing, replacing, mirroring, and removing disk devices.
• Experience in providing day-to-day user administration like adding/deleting users and managing user's queries and maintained Server using Cfengine.
• 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.
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, RPM, Zones, LDAP and Microsoft Active Directory Samba Web servers on Sun Solaris, Linux platforms.
• Troubleshooting and analysis of hardware and software failures for various Solaris servers core dump and log file analysis .
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Network Administration - involving day-to-day routine checks, Configuration of LAN adapters, Routing, NFS, DNS and Troubleshooting.
• Implemented crontabs, shell scripts for automatic jobs.
• Restored files for end-users when necessary.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and File Systems.
• Performing tasks related to technical support management.
• Installed and configured Windows 2003 servers.
• Performing Backup and restore.
• Created user roles and groups for securing the resources using local operating system authentication.
• Analyze system performance, client to server traffic and server to server traffic.