SUMMARY

• Over 6 plus years of IT industry experience as a System Administratorand Production Support of various applications on Red Hat Enterprise Linux, AIX, Cent OS,Solaris, and Windows environment.
• Having experience in Linux/AIX/Unix System Administration and Support of various critical business applications on RHEL 4.x, 5.x, 6.x, IBM AIX 5.x, 6.x, 7.x and Solaris 9.x, 10.x. including the responsibilities of 24x7 Systems upport
• Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of IBM AIX, Solaris 2.x, 8, 9, 10, HP - UX 10.x, 11.x, Win NT/2000 Server, Linux .
• Provided support to Aix servers version 5.3, 6.1, 7.1 on Blade center, P590, P595, P550, P690 and P650 servers, LPAR, DLPAR, POWERVM. Created LPAR. Backup and restore of POWERVM also worked on Dual POWERVM project, configured hard drive Ethernet and Shared Ethernet Adapter failover through POWERVM. Configured IVE, VLAN, link aggregator, NPIV. Worked on ITIL.
• Experienced in configuring SSH, DNS, NFS, send mail, FTP, NTP, HTTP.
• Experienced with Virtualization technologies like installing, configuring, and troubleshooting VMware ESXi for Linux servers.
• Extensive knowledge and experience in using YUM and RPM.
• Installed and configured VMware ESX server 3.5, 4.0, 5.0 and 5.5 on Dell power edge servers, HP DL 380 Gen-8&9 servers.
• Experienced in ESX & ESXi Architecture, guest OS installation, setting up of VM priorities, Cloning and Snapshots.
• Creation, management, administration and maintenance of virtual servers and clients.
• Having knowledge on different types of SAN and NAS storage and Endurance experience on different storage TSM, EMC, HITACHI and SVC.
• Worked on shell scripts for CPU usage, memory consumption and number of I/O to collect performance stats and troubleshoot issues if needed on Sun Solaris, Red Hat Linux.
• Proficiency in developing shell scripts from scratch as well as editing existing scripts as per the requirement.
• Configured and Administration of VERITAS Cluster.
• Extensive knowledge on various Linux/Unix File systems and Experienced with the installation, configuration and volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) on AIX and LINUX.
• Expertise in file system concepts like LVM, SVM, Creating new file systems, increasing and decreasing file systems, mounting file systems, un mounting file systems and troubleshooting Disk space issues
• Created and maintained user accounts, profiles, security, rights, disk space and process monitoring.
• Good knowledge and hands on experience of writing Perl and BASH scripts.
• Installed Configured and maintained NIM Server, created Spot, LPP source and resource on NIM Server, done many migration, upgrades and installed software using NIM. Used Alt disk migration to migrate server from 5.2 to 5.3 TL8 and also to Aix 6.1, did Alt Disk Clone for rootvg.
• Upgraded firmware on Aix server, Advance management module of Blade Center, upgraded HMC from 3.2.5 to 3.3.7 and P590 HMC to latest version, done critical console data backup and also save updated data.
• Extensive experience in HACMP, Virtualization, NIM, Security remediation/critical assessments, disaster recovery, performance tuning, SAN and troubleshooting.
• Experience in Installation, administration and configuration ofVIOSandVIO client LPAR'S through HMC.
• Involved in hardware migration of servers from p5 to p6 & p7
• Built Power HA 6.1 clusters and migrated servers with AIX 6.1.
• Experience inMicro-Partitioningon P series servers
• Experience in Migration of HACMP 4.3.1/4.5/5.1 to HACMP 5.4 using Node-by-Node migration without changing the cluster setup
• Installed and configured Sudo on all server, also SDD driver SDDPCM.
• Responsible for implementing and supporting assorted vendor Storage & Backup systems using IBM SAN Volume Controller (SVC).
• Automation of backup procedures for various appliances using IBM Storage Volumecontroller
• Specialization in UEFI/ BIOS based all System -X lobby, IBM System X, Pure flex, IDataplex Servers, Blade Center hardware platform, RAID Sub systems, DS3000 Series IBM Storage
• Experience inPlanning and Implementation of Virtualization on Power 770
• Configure DNS and Write Korn Shell program utilities to automate SYBASE and AIX Sybase backup
• Installation and configuration of Oracle 11gR2 RAC clusters onLinux environment
• Supported Oracle DBA with RAC node configuration and installing Oracle Binaries.
• Assisting SAP Basis team with AIX/Linux and database troubleshooting.
• Excellent presentation, analytical, documentation and interpersonal communication skills.

TECHNICAL SKILLS

Operating Systems: IBM AIX (4.3, 5.1L, 5.3L),Red Hat, Fedora, SUSE, Debian, Ubuntu, CentOS,Sun Solaris, and HP-UX, Windows - NT/XP Pro/Vista/7, VMware ESX 4.x,5.x

Hardware: DELL (PowerEdge), HP (ProLiant,G5,G6, G7 & G8), IBM BladeCenter, Sun-Fire X series and T-series Enterprise Servers

Tools: WebLogic 10.x/9.x/8.x, WebSphere, Apache HTTP/Tomcat/Jboss, VERITAS Volume Manager, VERITAS Net backup, Cluster server 3.5 &4.1, Sun Cluster 2.x & 3.x, Nagios, Splunk, Web Methods, PuppetLanguages: Shell scripting, Perl, C.

Networking: TCP/IP, NIS, NFS, DNS, DHCP, LAN, FTP/TFTP, SSH, SFTP, ARP

Storage: LVM, SCSI, SATA, Ext 2, Ext 3, Ext 4 and NAS(NFS, SAMBA, RAID 0/1/5) and SAN(iSCSI, FibreChannel) NetApp filers.

Database: Oracle 9i/10g/11g, DB2, SQL Server, MYSQL.

Cluster: Veritas Cluster Server, MC/Service Guard, Sun Cluster, Power HA, Hacmp 5.5, Rac

Mail Servers: SMTP, POP, IMAP, qmail, Sendmail, Postfix.

PROFESSIONAL EXPERIENCE

Confidential

LINUX ADMIN

RESPONSIBILITIES:

• Modification, administration and hardening of Windows Server and Red Hat Linux environment in a VMware virtualized environment.
• Integration of Linux based applications with Windows Authentication and Authorization
• Work closely with customers to understand their requirements and configure system appropriately
• Assist customers with development of data views and reports.
• Troubleshoot application issues that arise during deployments and continue to tune environment for performance enhancements and security requirements.
• Help customers establish processes to manage and maintain systems post - deployment.
• Perform vulnerability analysis and remediation using native Microsoft and 3rd party tools.
• Provide input to the development team on product enhancements to further streamline future deployments.
• Performed application installation, support, testing, and troubleshooting skills
• Worked with VMware via vsphere and vcenter.
• Deployment & Configuration Automation Experience (Bamboo, Blade Logic, and Bash Shell scripts, Ansible)
• Little DB Administration Experience ( MySQL, and Informix)
• Experience with administration of load balance devices (preferred F5 Big-IP)
• Backup and Restore Experience ( NetBackup)
• System Monitoring Experience with Nagios and Zabbix
• Able to work and interact with others in a structured / team environment
• Accuracy and attention to detail, must have organizational skills
• Independent problem solver with troubleshooting, decision making and analytical skills
• Flexibility and adaptability to handle competing work demands
• Demonstrated ability to communicate to nontechnical audience on technical issues
• Ability to work flexible hours and be on-call

Environment: Bind servers, Active Directory,, Windows 2012, Windows 2008 R2, Windows 2008 Core servers, Ubuntu 16.04, RHEL 6SAN, NAS, VERITAS Volume Manager, VCS, VERITAS NetBackup, VMware ESX, LVM, NFS, LDAP, Shell Scripting, Linux (RedHat)VMware ESXi 5.5, VMware vSphere 6.0

Confidential, CHICAGO - IL

LINUX ADMIN

RESPONSIBILITIES:

• Security patching on Servers on various platforms such as Windows, Linux and Virtual machines.
• Activities include operation and maintenance of operating systems across multiple platforms, middleware Applications various database technologies, high availability solutions and load balancing.
• Database administration, capacity planning, performance management, security compliance. Support is also for virtual machines from scratch and installing tools
• Responsible for maintaining Solaris LDOMS and RHEL virtual hosts on VM Ware.
• Installing Win bind software on new servers and configuring active directory on it .
• Upgrading Cisco N5000,N6000 and N9000 switches NX-OS software to latest version
• Using IBM ITSAS tools finding the vulnerability on production, development and test servers
• Solving the tickets which are assigned to me
• Applying SSL certificate to servers, Implement Security Tools
• Advise Security Implementation Requirements
• Advise on Server Security Considerations
• Advise Network Op Environment Security Considerations
• Systems Administrator Manage Performance/Capacity, Root Cause Analysis
• Systems Administrator Implement System HW/SW Components
• Systems Administrator Use System Analysis, Systems Monitor Tools
• Experienced on patches installation, patch upgrades and packages installation on Red Hat Linux servers by using RPM & YUM.
• Experience in providing day-to-day user administration like adding/deleting users in local and global groups on Red Hat Linux platform and managing user's queries.
• Experienced in giving 24/7 production support to the virtual servers
• Experienced in installing SYSLOGING & configuring monitoring system log messages.
• Troubleshooting issues in various SPARC Architectures environment.
• Regular disk management like adding / replacing hot swappable drives on existing servers workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Maintained Web servers, file servers, firewalls, and directory services, and set up user accounts. Write status reports, technical diagrams, and flowcharts.
• Configured the LUNs assigned by the storage administrators, and managed Volumes using Logical Volume Manager (LVM) on Linux.
• Created ZFS file system in Solaris 10 using Zpool and ZFS and created VERITAS file systems 5.0, RAID 0, 1, 5 volumes.
• Configured SAN Storage for AIX Servers.
• Disk Storage Management in AIX - Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes, and physical volumes.
• Architecture, Design and core configuration of the production server systems, which involved sizing file systems and hardware implementation after evaluating support matrices for storage.
• Used KEMP Load Master for advanced load balancing and application delivery capabilities for Linux
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat/CentOS Linux servers using Satellite Server/Spacewalk.
• Enterprise Linux/CentOS 5/6/7 installs and RHN Push Updates.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Experienced with the installation & configuration of volume management using VERITAS Volume Manager, VxFS file system
• Provided for systems management tools which monitor the operational status of the environment.
• Applying security patches on Linux, windows servers and running Nessus scan on servers finding the vulnerabilities.
• Running the Vulnerability scan on servers using Nessus scanner, Tivoli security compliance manager, Security scan tool
• Configuring Bind servers and creating Zones and records in it .

Environment: Bind servers, Active Directory,Nessus Scan, SSL Certificates, Cisco Switches, Windows 2012, Windows 2008 R2, Windows 2008 Core servers, Ubuntu 16.04, RHEL 6, ITSAS TOOLS SAN, NAS, VERITAS Volume Manager, VCS, VERITAS NetBackup, VMware ESX, LVM, NFS, LDAP, Shell Scripting, Linux (RedHat)VMware ESXi 5.5, VMware vSphere 6.0

Confidential, Columbus, OH

System Administrator (Linux/AIX)

Responsibilities:

• Deployed RHEL 5.5 and RHEL 6.1 Linux VMs using VMware vSphere client.
• Provided support and monitored the performance of UNIX/Linux/AIX Environment.
• Build, test and provide support for AIX, Linux and Solaris Server's.
• 24x7 on call server support for UNIX environment.
• Installed and configured AIX on p5, p6 and p7 550,570,630,640, 520,610,590,595, 770, 795 Bladecenter JS20/JS21/JS22/JS23 for development, test, production and DR environment.
• Installation, administration of VIO Server and VIO client LPAR's.
• Installation of Linux OS by using kickstart on DL G5 385 boxes.
• Installation of Red Hat Enterprise Linux 6.3 and 5.8, ESXI 5.0 servers through manual and auto build process.
• Initial post installation procedures forUNIXthrough internal script.
• Installation/Upgrade of packages and check package dependencies on Linux Servers using RPM.
• Setup of Virtual Appliance environment in Pureflex with FSM based IBM System Director and VM Control
• Worked in solving SMC tickets issued on day to day activities and problems related to development, test and production support servers.
• Installed and configured of SAMBA, squid, FTP Server, SMTP Server, RAID and LVM on RHEL.
• Linux and UNIX infrastructure design and management.
• Installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Manage existing high available application services using Linux RAC cluster and VERITAS CLUSTER server.
• User administration, User/Group Quota, ACL’s, LVM, System/Network troubleshooting.
• Monitored the systems and administered Servers for day-to-day problems, patches, user administration, and hardware failure, monitoring log files, backup, software up gradation, configuration changes and documentation.
• Wrote suite of tools for NIS and local Unix accounts management, keeping user details synchronized across the systems.
• Perl development to interact with LDAP (AD) servers to query & modify person, host &netgroup data.
• Building software packages on Red Hat Linux (RPM)
• Most of these tasks are performed using native Korn Shell and Perl scripts system resources from one partition to another partition
• Installed & configured Guest operating system like windows, Redhat 5.x and SUSELinux11.x/10.x/9.x, on VMwareESX 4.0.
• Installed and configured AIX NIM server, resulting in streamlining the AIX installation process.
• Install AIX 7.1 on new IBM pSeries hardware (p730, p750, p760) utilizing NIM resource server as well VIO server configurations.
• Installed and setup new PSeries hardware, including connecting to HMC, SAN storage and Ethernet switch.
• Installed and configured mirroring of rootvg.
• Responsible for Host based migration and Storage virtualization
• Migration of physical to virtual environment of AIX systems (P2V) and also migration of Virtual to Virtual (V2V) of LPAR migration from one hardware to another.
• Migrated numerous LPAR’S from Aix 5.3 to Aix 6.1, and Aix 7.1. Upgraded Aix 5.3 server to TL 11.Aix 6.1 severs to TL 8 using NFS mount and alt disk.
• Single point of contact for HACMP Cluster issues & support.
• Designed & built a five node POWER HA cluster from scratch and added nodes to two different existing clusters.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Have performed network backup, restore and archiving of network clients using TSM.
• Working with 3rd party tools like ITM, SCM, TSM, to ensure the events are notified to avoid outages on the productions servers.
• Installed and configured IBM Tivoli Network Storage Manager (TSM) client & Server software backup and recovery solutions.
• Migrated Linux based machines and Power off Machines to virtual machines using VMware converter
• Configured, maintained, applied changes and fail-over schedules of HA servers running Veritas Cluster Server and Red hat Cluster Server.
• Coded variousPerl/Shell scripts to automate backup and recovery.
• Performed UNIX System Administration. Fine tuning, Kernel debugging, process scheduling, disk and file system I/O, kernel internals, TCP/IP communications.
• UNIX Shell/Perl scripting for job automation. Creating zones for application.
• Responsible for moving servers behind SVC.
• Setup of Pureflex from scratch which includes configuring CMM, IMM, FSM, V7000 Storage, SAN and Network switches
• Setup of Virtual Appliance environment in Pureflex with FSM based IBM System Director and VM Control.
• Installed Veritas Volume Manager, VCS Cluster Server for fail-over and for mirroring and raid level configurations on EMC storage frames
• Installation and implementation of EMC’s XtremIO all flash array at various client sites.
• Responsible for migration of LPARs from local SCSI to SAN dasd, resulting in enhanced server reliability due to RAID structure of SAN.
• Installing and configuring VIO Servers, building LPAR clients and sharing IO devices to LPARs.
• Installation & configuring of PowerHA 6.1.
• Migrated Power HA from 5.x to 6.1 using different methods to reduce the downtime to the application.
• Performing fail-over, fall back between the HA cluster nodes
• Troubleshooting the POWER HA and increasing the filesystem in HACMP/POWER HA cluster.
• Hardware replacement of cluster nodes without any downtime.
• Installation and Configuration of LAMP (Linux, Apache, MySQL, PHP) environment

Environment: VMware 4.x, RHEL 4.x/5.x/6.x, Centos, SUSE 10, 11,VERITAS Volume Manager3.x/ 4.x, RedHat Cluster, VERITAS Cluster Server 4.1, Tripwire, NFS, DNS, SAN/NAS.

Confidential, San Francisco, CA

UNIX / LINUX System Administrator

Responsibilities:

• Installing, managing, troubleshooting, securing, configuring and tuning critical servers on following UNIX platforms: Linux, AIX, HP-UX, Solaris, including high availability cluster solutions under IBM HACMP/Power HA and Veritas Cluster.
• Building software packages on Red Hat Linux (RPM) and Solaris (DataStream package format)
• Installed, maintained and upgraded Redhat Linux and Solaris Servers using kickstart based network installation.
• Migration involved backup & restore and EMC’s Open Migrator, cpio, rsync and cp.
• UpgradedIBM-z/VM 5.4servers to new technology levels, configured LVMs onAIX 5.1, 5.Planned, Installed and configured SUSE Linux Enterprise Serveron Blade Server JS 21 X series 3755.
• WroteUNIX Shell, K-shell, Perl,bashandpythonscripts to perform admin tasks.
• Performed Troubleshooting NFS, NIS, Samba, DNS, DHCP, LDAP, Mysql and network problems.
• Setup and configured KVM on Red hat and XenonSuse
• Installed and managed several IBM AIX systems which include disk management, user management, network management, performance management, test and development projects running on AIX 6.1.
• Installation and administration of several AIX networks across the country.
• Implemented and maintained several client-server applications on AIX platform
• Migrationof HACMP from version 5.3 to 6.1.
• Troubleshoot failed disk path and enabled back.
• Performed mksysb backup and restore using NIM master.
• Upgraded HMC to recommended level and firmware on the Managed Nodes using command line.
• Experienced in increasing the file system, create Mirroring, striping onAIX.
• Prepare root cause analysis for server crashed, open PMR with IBM to resolve issue.
• DNS Configurations, Ethernet speed checks/Duplex Settings, ports, security (ssh) setup on RH Linux.
• Involved in shell scripting for automating server tasks, installing and monitoring.
• Created, installed and Configured VIO server and client Lpars on IBM P740.
• Installation and configuration of NIM master server and clients.
• Worked on setting up password less connection for batch users.
• Installation and configuration of NIM master server and clients.
• Worked on setting up password less connection for batch users.
• Manage Linux filesystems, logical volumes, system logs and journal.
• Managing cron jobs, batch processing and job scheduling.
• Project management and Implementation of EMC's Configuresoft (asset management) across approx 100 AIX LPAR's.
• Worked on double disk failure on SAN migrations.
• Configured MPIO on VIO server and clients.
• Built and configured RHEL 5.5 Linux servers using Kick Start Server
• Configured the GPFS clusters to keep the high availability applications running on RHEL 5.5 servers.
• Convert LPAR from Non-NPIV(N-Port ID Virtualization)
• Supported Oracle DBA with RAC node configuration and installing Oracle Binaries.
• HMC management. Installation, adding frames to HMC, Managing HMC GUI and command line, and apply patches.
• Scheduled Netbackup routines for data retention and environment refreshes.
• Architected, designed and developed a package tracking system responsible for delivery of computer components across the U.S.

Environment: Linux (RHEL 4.x &5.x), IBM AIX 6.x, 7.x, Solaris 10/9/8, Oracle RAC 11/10g, HACMP2.2, VIO 2.x, VERITAS Cluster Server (VCS), VERITAS Volume Manager (VVM), SUN Servers, SUN Fires, Fuji, HP hardware, CMC, Nagios Monitoring, Web Sphere Application Server 5.x/6.0/6.1, Load balancers, Net Apps, LDAP, EMC Storage SAN, VMware servers, Sybase and Oracle Database.

Confidential

System/Linux Administrator

Responsibilities:

• Installed and configured Red Hat Linux Kickstart and Solaris jumpstart Servers.
• Setup a couple of hundred VM's running Centos to be used for web, database, application, mail, ftp and monitoring.
• Configuration of Hardware and Software RAID on Digital & Sun Servers.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Performed Troubleshooting NFS, NIS, Samba, DNS, DHCP, LDAP, Mysql and network problems.
• Setup and configured KVM on Red hat and XenonSuse
• Configured and Administration of VERITAS Cluster.
• Day to day maintenance of VERITAS cluster Servers
• Responsible to handle the Server Administration and Asterisk Server Installation and Configuration in Linux. .
• Worked as part of Testing Team in Application testing using Manual methods and Scripts.
• Installed and implemented NAS with RAID 1 and RAID 5 configurations.
• Monitored load and performance on the infrastructure and added capacity as needed.
• Installation, configuration and management of postgre sql & mysql database servers.
• Client interaction for requirement gathering, so as to design and plan the software and hardware infrastructure.
• Familiar with Disk Management Utility. Hands on experience in file system creation and file system management.
• Provided 24x7 on call server support for UNIX environment including AIX, Linux, HP-UX, and Sun Solaris.

Environment: Linux (RHEL 5.x/6.x), IBM AIX 6.x/7.x, Solaris 9/10,NIM, EMC Storage, VERITAS cluster 5.x, Web Logic 9, Web Sphere 8.5.5,apache and oracle database.

Confidential

System Administrator

Responsibilities:

• Carry out regular routine preventative maintenance schedule on servers.
• Monitor and analyze servers and resolve any problems, maintain systems reporting, tuning
• Maintaining integrity of security with the use of group policies across domains.
• Creating and managing Organizational Units, Groups and users.
• Maintaining inventory of all components including systems and other hardware.
• Maintaining user’s data backup by creating particular user folder in File Server and applying security permission on folders.
• Involved in Second level troubles shooting.
• Handled tasks such as password reset requests, printer and print queue problems and connectivity troubleshooting.
• Also responsible for the installation, administration and maintenance of Linux servers
• Monitoring system performance
• Installed centos using Pre-Execution Environment boot and Kick Start method on multiple servers.
• Closely controlled the production environment to ensure stability and uptime.
• Closely monitored networks and security to ensure stability.
• Creating and managing Logical volumes.

Environment: Red hat Linux 3, 4, 5 Sun Solaris 9, 10, HP DLseries G8, IBM X series, Logical Volume Manager, VERITAS Volume Manager, Solaris Volume Manager, Oracle.