SUMMARY:

• 8+ years of Linux/Solaris systems administration and architecture role.
• Design administration, configuration and deployment of Linux/Solaris on 32/64 - bit platforms.
• Worked on a broad range of Intel, AMD, Sun Sparc T4-1/T4-2/T5-2, BM RS/6000 &PSeries, HP (ProLiant DL380, DL580, DL585, BL460), Dell PowerEdge 850,1950,R900,M600, Sun Fire X4200, X4600, X4150, X4170, X4270, X4470, X4800, V240, V490, T2000, T5240, T2000, Confidential (Blade HS20, HS22, HS40)
• Experience with working on open source configuration management tool Puppet.
• Responsible for setting up Linux desktop VMs for application teams.
• Deployed large number of VMs with linux desktop images with RHEL 5/6
• Provided production support for both Linux desktops and also servers running RHEL 5/6/7
• Responsible for setting up Puppet production environment for more than 1200+ servers
• Implemented Ansible Playbooks for various Linux roles and common Linux services
• Provided 24x7 UNIX production support using HP Service Manager and Remedy ticketing tool
• Worked on Solaris to Linux migration in a large data center environment
• Strong knowledge in building/provisioning Linux/Solaris operating systems using Kickstart/Jumpstart.
• Experience with Logical Volume Manager (LVM), Veritas Volume manager(VxVM), VxFS and VCS
• Responsible for setting up Veritas Volume Replicator(VVR) in Solaris environment.
• Configured and managed Storage arrays (SAN) like EMC Clariion CX300/500, EMC Symmetrix DMX series arrays, Hitachi Lightning 9980/9990 on Linux/Solaris OS.
• Primary member of the team in setting up VCS on a two node and three node VCS clusters.
• Responsible in setting up BladeLogic for data centre automation of RHEL/SuSE servers.
• Successful in migrating and upgrading from Physical to Physical, Virtual to Virtual and Virtual to Physical.
• Responsible for setting up development, stage and production Solaris/Linux servers in high available environment using Veritas Storage Foundation RAC.
• Strong knowledge in configuring network services like NFS, NIS, DHCP, DNS, Web Server, LDAP, VPN
• Primary member of the team to successfully implement SPARC migration from Sun hardware to LDOMs.
• Strong knowledge of installing and customizing Red Hat Package Manager(RPM).
• Troubleshooting software and hardware issues on wide range of server hardware.
• Strong knowledge in setting up 3-node Oracle10g Real Application Linux Cluster.
• Monitored systems performance, provided systems performance tuning for Oracle database
• Experience with data centre automation using Red Hat Satellite server
• Experience with IT Automation on Python / Shell Scripts and Ansible
• Configured Automatic Storage Management (ASM) for Oracle RAC clusters.
• Installation and configuration of Veritas Storage Foundation 4.0 for Oracle RAC on Unix.
• Experience with software and hardware RAID (3Ware RAID adapter 7000/8000 series)
• Experienced with EMC Powerpath, Veritas DMP(VxDMP), DM-MPIO multipathing.
• Responsible for installing and configuring EMC Legato Networker Clients and Agents..
• Configured VPC for hypervisors running Solaris 10/11.
• Migrated Linux virtual machines from one vCenter to other for Soft Layer Project.
• Primary member of theteam to rename/re-ip and setup application and database environments
• Worked with network team in identifying VLAN, switch ports related configurations and validations.
• Extensively worked with storage team to provision, un-provision, troubleshoot storage disks for Unix hosts.
• Developed system logbooks to preserve: schematic diagrams, system configurations, inventory of system hardware purchases, event logs, and system software integration documentation.
• Experience with automating installations, post configurations, developing tools using perl/bash.
• Install, maintain, upgrade and support enterprise wide J2EE applications in development, test and production systems running WebLogic application servers on Red Hat Enterprise Linux
• Extensively worked on file systems like EXT2, EXT3, UFS, VxFS, VxDMP, VCFS, OCFS, OCFS2, ASM
• Responsible for setting up 3-node Oracle 10g RAC and VCS clusters on RHEL/SuSE servers.

TECHNICAL SKILLS:

Operating Systems: RHEL 4/5/6/7, Solaris 9/10/11, SuSE 9/10/11, Centos 5/6/7

Hardware: HP Proliant, Blade servers, Sun Servers E4500, E6500, E6900, E10K, E15K, E25K, V280, V490, V880, V890, M3000, M4000, M5000, T5120, T5220, T5420, T4-1, T4-2, T5-1, T5-2, Dell PowerEdge R710, R720, R810, R820, DMX3 and DMX4 Storage Arrays, EMC Symmetrix and CLARiiON.

Software: VERITAS Volume Manager, VERITAS File SystemVERITAS Cluster Server, VERITAS Netbackup, MS-

Office/MS: Project.

Web/ Application Server: Tomcat, Apache DB2, Oracle R11&R12

Network Protocols: DHCP, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS,PAM,Kerberos, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: VERITAS Cluster Servers, Oracle RAC, Redhat Cluster, GFS2

Programming Languages: Bash, Puppet DSL

PROFESSIONAL EXPERIENCE:

Confidential, Austin, TX

UNIX/Linux Administrator

Responsibilities:

• Administration of RHEL 5/6/7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Worked on managing VCS, Oracle RAC and Redhat Clusters.
• Responsible for managing RedHat Satellite server to provision and manage RHEL 5/6/7 client.
• Extensively worked on setting on Ansible tower to deploy playbooks for patch management.
• Primary member of the team to successfully implement SPARC migration to LDOMs.
• Developed Puppet modules to automate deployment, configuration, and lifecycle management.
• Provisioned engineered system Exadata and and coordinated patch activities with DB team.
• Responsible for setting up Linux desktop VMs for application teams.
• Deployed large number of VMs with linux desktop images with RHEL 5/6
• Provided production support for both Linux desktops and also servers running RHEL 5/6/7
• Working knowledge of EMC, SAN and NetApp infrastructures on both virtual and physical environments.
• Responsible for setting up NFS file systems for NetApp volumes exported to large number of Linux and Solaris OS
• Extensively worked on decommissioning by coordinating with Apps/DB/Storage/Network teams.
• Installed RedHat Linux using kickstart and applying security polices for hardening the servers.
• Primary member of the team in setting up VCS on a two node and three node VCS clusters
• Performed OS upgrades, migrations on RHEL, SuSE and Solaris in a large datacenter environment
• Experience with change control management using BMC Remedy tool and Service Now inhandling Work Orders on production systems in a large datacenter environment.
• Core member of the team to successfully migrate both virtual and physical hosts.
• Extensively worked in building and configuring Solaris hypervisors hosting ldoms.
• Configured VPC for hypervisors running Solaris 10/11.
• Responsible for migrating large number of Linux hosts to Centriy for user management.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
• Migrated Linux virtual machines from one vCenter to other for Confidential Cloud Soft Layer Project.
• Primary member of the disaster recovery team to rename/re-ip and setup application and database environments similar to their prod counter-parts.
• Primary member of the team for GRID project to successfully upgrade firmware, re-install OS and perform post for Confidential blades running SuSElinux 10/11.
• Experience working in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment.
• Worked with network team in identifying VLAN, switch ports related configuration, validations
• Worked in production & application support 24/7 in NAS, EMC SAN Storage on Linux
• Implemented security policy and managed firewalls/IDS. Managed DNS, send mail, IP space
• Maintained Volumes and File systems for Oracle, MySQL, DB2, Sybase databases.
• Applying security patches to RHEL servers using Red Hat Satellite.
• Managing systems routine backup, scheduling jobs using cron, enabling system logging, network logging of servers for maintenance, performance tuning, and testing.
• Performed data-center operations including rack mounting and cabling.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager and Logical Volume Manager.
• Upgraded firmware on HP, DELL, and Confidential blade servers running Linux.
• Configuring multipath, adding SAN and creating LVM on newly provisioned disks.
• Extensive exposure to Configuration Management policies and practices with regards to SDLC; along with automation of scripting using BASH/Shell, Perl scripting.
• Installing and configuring Apache and supporting them on Linux production servers.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage, configured ASM raw devices
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostatetc) and tuned I/O, memory, etc.
• Adding servers to the domain and monitoring them using Nagios
• Documented various system admiration tasks to be used by team.

Environment: RHEL 5, 6, and 7, Solaris 9/10,/11, VCS, Oracle RAC, Redhat Cluster, MySQLVMWare vSphere, VMWare vCAC, Red Hat, Ubuntu, Satellite, Ansible, Bash, Puppet,Dell PowerEdge R710, R720, R820, HP Proliant, Oracle T5220, 5420, T4-1, T5-1, V880, VVM, VCS, VNB, EMC Symmetrix and CLARiiON.

Confidential, Peoria, IL

Unix/Linux Administrator

Responsibilities:

• Installed, configured, maintained and enhanced operating system and system support software/hardware Enterprise Linux 6.x, 5.x, 4.x, Ubuntu troubleshooting hardware, operating system, applications & network problems and performance issues.
• Installed and configured various flavors of Linux like Red hat, SuSE and Ubuntu.
• Monitored trouble ticket queue to attend user and system calls, participated in team meetings, change control meetings to update installation progress, and for upcoming changes.
• Working knowledge of EMC, SAN and NetApp infrastructures on both virtual and physical environments.
• Responsible for setting up NFS file systems for NetApp volumes exported to large number of Linux and Solaris OS.
• Network printer's setup and installation of client/server applications. Defined and setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Red Hat Linux and AIX.
• Network trouble shooting using 'netstat', 'ifconfig', 'tcpdump', 'vmstat', 'iostat' and others.
• Built vservers using the templates as per the application's requirement
• Responsible for adding new DNS and mail entries in their respective servers.
• Day to day production support including checking daily logs, backup/recovery procedures, disaster recovery periodic maintenance and off-hours problem support.
• Created clones and Templates of Virtual Machines and Deploying Oracle VM's through Templates.
• Responsible for setting up Linux desktop VMs for application teams.
• Deployed large number of VMs with linux desktop images with RHEL 5/6
• Provided production support for both Linux desktops and also servers running RHEL 5/6/7
• Implemented and administered VMware ESX 3.5, 4.x for running the Windows 2003/2008 Servers.
• Installed and administered Redhat using KVM, Xen based hypervisor.
• Installing and configuring virtual environment using VCloud Director.
• Installing ESX servers and configuring them in a private cloud environment.
• Experienced in installing and managing NFS, FTP and Samba for file sharing.
• Installed and managed Tomcat and Apache Web based Server for Red Hat Production servers.
• Identifying, evaluating and recommending the purchase of software, hardware or services that can be used to improve the performance of this group.
• Supervised hardware installations and performed O/S upgrades.
• Experience in working in a huge environment with almost 700 servers including RS/6000.
• Day to day tasks in Red Hat Linux including upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system.
• Installation and administration of VERITAS Cluster Manager (VCM), VERITAS Volume Manager (VVM).
• Supporting and troubleshooting of Red hat systems 24/7.
• Performed system administration tasks like system monitoring, performance usage, network support, and user support.
• Created and scheduled cron tasks for file update, system back up or removal of unnecessary files.

Environment: REDHAT 6.x,5.x, Ubuntu, CentOS AIX 4.3/.5.2/5.3/6.1/7.1, SMSAP, TSM, Nortel Switches, windows2000, HACMP Clusters, PowerHA, SAN, NIM, Confidential HTTP server, WAS 4.0/5.0, VERITAS, DB2,.

Confidential

Linux/Unix Administrator

Responsibilities:

• Installation/Maintenance of Hardware/Software in Production, Development & Test Environment as an integral part of the Unix/Linux (RHEL 5.x / 6.2, SuSE/AIX) Support team.
• Worked on installation, configuration and maintenance of Red Hat, Cent OS, Ubuntu, SUSE, AIX and Windows servers.
• Installed and configured RedHat Satellite server for package transfer across servers, to store client's system profile and to control other servers in the network.
• Configured LVM and managed it.
• Experience with kick start installation on multiple servers.
• Worked with KVM Hypervisor to install, configure and maintain Red Hat Linux.
• Capacity Planning, Infrastructure design and ordering systems.
• Using VMware vCenter, created DataCenter Environment by creating VMware Clusters, adding ESX hosts in the clusters, and implemented HA and DRS.
• Created and scheduled Cron Jobs such as for Backup, System Monitoring and removed unnecessary files.
• Implemented day-to-day tasks in RedHat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system.
• Installed, configured, maintained and administered the network servers DNS, DHCP, NIS, NFS, SENDMAIL.
• Worked with DBA's to install RDBMS database, restore and generate logs.
• Supported physical servers and virtualized servers. Worked with other engineers to support SANs and Oracle VMWare hosts.
• Involved in adding new disks, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, and crash recovery issues.
• Experience with installation and maintenance of NFS, FTP and Samba for file sharing.
• Built Linux servers using VMWare ESX and VMWare ESXi.
• Created Virtual disks/Virtual Target devices to allocate SAN Luns virtually to the VIO clients.
• Set up repositories for Redhat, implemented YUM, SSH and other security tools.
• Implemented RAID techniques and created disk groups and volumes using VERITAS Volume manager.
• Maintained Load balancing, High availability, Failover functionality and Disaster recovery included.
• Provided 24/7 on call supports in debugging and fixing issues related to Redhat and SuSE Linux.

Environment: Linux (RHEL 4.x &5.x), AIX 6.1, Oracle 11/10g, SUN Servers, SUN Fires, Samba, Perl, Shell Scripting, Bash, SUSE 11/10, VERITAS Volume Manager (VVM), F5 Load balancers, SiteMinder5.5/4.5, EMC Storage SAN, VERITAS Cluster Server (VCS).