Sudheer Kommineni

704-***-****

ac09w6@r.postjobfree.com

●Over 8 years of experience in Administration of Linux(Red Hat Linux, SUSE, Ubuntu & OEL, Unix (Solaris & HPUX) and windows (XP/Vista/7,2003/2008, ).

●Experience in supporting Amazon AWS Cloud environment with 200+ instances running Linux and Ubuntu.

●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.

●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.

●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.

●Experience in network administration, deploying and troubleshooting of DNS, LDAP, NIS, NFS and DHCP

●Expertise in System performance tuning, capacity planning and Disaster Recovery planning.

●Identification, planning and migration of P2V candidates and new builds from each sites without any downtime.

●Expertise in shell, perl scripting.

●Creating and managing Virtual Machines and Templates, worked with clones and snapshots of Virtual Machines.

●Experience working on Cron Scheduler.

●Troubleshooting, documenting and knowledge transferring of Double Take process to the BUs.

●Worked with Backup Team to Configure the Master and Client Backup servers Using VERITAS Net Back up 4.5/5.0

●Experience in Apachce,Tomcat configuration, webservices.

●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, VM, Bash, Ksh, Perl, Puppet.

Education: Bachelors of Engineering –SRM University, Chennai, India.

PROFESSIONAL EXPERIENCE

PNC Bank, Pittsburgh, PA January 2016- Present

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.

●Experience working on data migration.

●Involved in managing virtual Redhat Linux servers on VMware ESXI4/5.

●Configured and setup HA solutions for various applications.

●JBOSS server configuration and deployment.

●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.

●Configure Puppet Labs to automate the Linux environment.

● Supporting application servers like Weblogic and front end Webservers like Apache.

Exterran, Houston, TEXAS March 2015- January 2016

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.

●Experience working on Data Migration using peoplesoft.

●Experience working on Cron Scheduler.

●Design and Implementation of Puppet based configuration system.

●Integration of Nagios with Puppet for automation monitoring.

●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.

●Experience working on Docker.

●Good knowledge in structuring the documentation for Architectural Design and Build Plan Documents.

MAPFRE Insurance, Webster, MA May 2014 – March 2015

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.

●Experience working on REDHAT Clustering.

●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.

●Web Application deployment and configuration

●Experience in WAS troubleshooting and monitoring.

●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.

●JBOSS server configuration experience.

●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

Office of the New York state comptroller, Albany, NY August 2013 – May 2014

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.

i-cura technologies, India June 2011 - May 2013

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.

Innovative Solutions, India Apr 2009 - May 2011

System Administrator

Responsibilities:

●Responsible for conducting and verifying the validity of daily tape backups of the servers.

●Responsible for maintaining the LAN in “state of the art” condition and to assess th e quality and reliability of existing hardware, software, operating systems and network components that comprise the LAN, and make recommendations for upgrade or replacement where necessary

●Configured the email servers to make the electronic mail capabilities of the server operational at peak performance at all times.

●Responsible for monitoring the state of the network and general network throughput.

●Troubleshooting technical issues related to printers, e-mail, internet connections, operating system and hardware

●Used remote desktop support for trouble shooting few tasks.

●Adding, removing, or updating user account information, resetting passwords, etc.

●Participated in network planning, design, development, deployment, and modification.

●Managed the physical network infrastructure, including wired and wireless local area network (LAN) and also managed the data communication needs of the company.

●Monitored bandwidth use, analyzed traffic patterns and volumes, and determine the impact/implications of issues.

●Server maintenance and troubleshooting. Including software security updates, operating system updates, performance tuning, log analysis, maintaining application updates and bug fixes.

●Maintained mission critical servers – hardware, software’s and operating systems.

●Resource management and disk space management – removal and addition of peripherals

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