SUMMARY:

• 8+ years of experience as a System administrator in the areas of RedHat Linux, Sun Solaris, IBM AIX, HP - UX and Windows environment.
• Planning, Installation, Configuration, Maintenance and Administration of Linux (Red Hat 4, 5, 6 & SUSE 10.3, 11.2, 12.1), HP-UX, AIX 4.3/5.1/5.2/5.3. OEL 5.5, 6.1 and Sun Solaris and day to day system admin tasks.
• Professional in Installing, building & configuring Server using Jumpstart, NIM, Flash archive, Ignite and kickstart techniques.
• Setting up printers / remote queues / Info-print management Migration upgrades of AIX (4.3.3/5.1/5.2/5.3 ), including system tuning, security, backup, recovery and upgrades of Linux and IBM AIX.
• Installation of patches, Security fixes, packages on Linux, AIX and Windows NT/2000 Servers.
• Experience using DEVOPS tools like Chef and Puppet along with to automate tasks and software delivery
• Knowledge of Perl, Ruby, Python, and Shell scripting
• Experience with Maven
• Configured Volume groups, logical volumes and file systems on Linux
• Worked on Group/User administration, Startup & Shutdown Scripts, Crontabs, File System Maintenance, Backup Scripts and Automation.
• Experience with using Puppet for software delivery and automation
• Experience in working with VMware ESX servers for enterprise level virtualization and Xen.
• Experienced in installing, configuring, maintaining RHEL 4, 5, 6 for application and database uses on DELL POWER EDGE R710, R900, R610, PE 2650, PE 2950, PE 1950, HP Stand alone and Blade Servers.
• Expertise in setting up new virtual server hosts, installing them with OVS and maintaining them on OVM.
• Experience in configuring, monitoring and troubleshooting various file systems like Ext 3, Ext 2, UFS, NFS and JFS.
• Experience in installing, updating packages in Red Hat Linux servers using RPM’s and YUM repositories.
• Good working knowledge on HACMP 5.x and NIM Master and Clients.
• Use ILO/HMC/DRAC for remote access of servers on Linux/AIX respectively.
• Worked extensively on Red Hat Linux DNS servers from installing BIND package, updating the BIND database and troubleshooting the problems.
• Experience with Apache and Tomcat
• Having complete UNIX power user toolkit, expertise in using vi, sed, awk, perl and basic SQL
• Experienced in code deployment using HP Opsware Automation Client.
• Experienced in Monitoring system Access and Monitoring servers by using tools like Tivoli, Nagios, Spectrum, Cacti and Concord.
• Installed Web Sphere Application Servers on Linux and AIX.
• Experienced in cloning / replicating instances on data base and application servers running on RHEL 4, 5, 6.
• Conducted AIX / Linux System security and auditing and did Performance Monitoring and Kernel Tuning.
• Possess strong trouble-shooting attitude and business oriented user interface.
• Expertise in User & Security administration, backup & recovery and maintaining Unix Account management.
• Highly experienced in configuring IP multipathing(IPMP) on Solaris and bonding on Linux environments
• Implemented the workload Management (WLM) and Load Balancing
• Expertise in Monitoring system Access and Monitoring servers by using CA and Tivoli Tools
• Experience in trouble shooting and Performance tuning by working closely with Application, Database, Network and Storage Teams.
• Experienced with npar and vpar on HP-UX systems
• JBoss including installation, configuration, management and troubleshooting.
• Installed and configured IBM Web Sphere Application Server 3.5, 4.0, 5.0 on AIX.
• Experience in Installing, Configuring, and Implementing Virtualization Environment Using VMware ESX and ESXi, SUN Virtual Box, OVS & OVM and Microsoft Virtual PC
• Extensive hands-on background in AIX Logical Volume Manager (LVM), OS Upgrades and Servers Disk Crash Recovery mksysb (AIX).
• Experienced in racking new servers / storage arrays, configuring RAC IP, setting up virtual disks in different RAID levels and getting them ready for OS install.
• Installing OMSA on DELL hardware and maintaining them on IT-ASSISTANT.
• Experienced in Linux kernel tuning and applying patches as required.
• Expertise in troubleshooting, ordering and maintaining hardware. Daily routine tasks include opening service tickets with DELL, ORACLE for replacing / improving system performance.
• Worked on Change management tickets and HD tickets with the help of Remedy ticketing tool.
• Experience in using Quick base to raise ACL / LB, storage requests/escalations and provision new servers.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat 3.x,4.x,5.x,6.x SUSE 10.3,11.2,12.1),Free BSD, IBM AIX 5L(5.1,5.2,5.3), Solaris(8,9,10), Fedora, HP-UX, Windows 2000/NT4.0, Windows 95/98/ME/XP/7/8, VMware ESX 2.x,3, OVS.

Hardware: IBM RS/6000, pSeries 520, 550, 570, 575, 590, 595, 650, 630,670, M80, S80, H70 and H80, z/VM-9 series, IBM ESS (Enterprise Storage Server), DS8000, IBM 3494, 3583 Automated Tape Library, Brocade, SUN Enterprise 450, SunFire 4500,V880, V480,E420R,E450,E250, HP DL 380s and 580s,EMC Symmetrix, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers DELL Poweredge 1650, 2850, 2950, 1950, R900, R710, R910, R610, R900.

Web/Application Servers: WebSphere Application Server (WAS)3.5,4.0, Netscape/iPlanet Server, MQSeries, WebLogic, Tomcat, JBoss, Jetty, Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Confidential Routers/Switches, WAN, SMTP, HTTP, LAN, FTP/TFTP, SCP, RCP

RDBMS: IBM UDB2, Oracle 7.x/8.0/9i/10/11, MS-SQL Server 7.0/6.5 and MS-Access 97/95

Programming Languages: C, C++, Java, Servlets, Jsp, EJB,VB, JavaScript, HTML, Perl and Shell programming ( Bash )

Applications: HACMP, Samba, Tivoli (TSM), Nagios, Veritas, NetBackup, Veritas Volume Manager, LVM, DELL IT-ASSISTANT, OVM

PROFESSIONAL EXPERIENCE:

Confidential, San Jose CA

System Admin

Responsibilities:

• Provide system support for all the UNIX / Linux servers in the client environment.
• Responsible for installation, configuration, and administration of Red hat Linux 5.x, 6.x and supporting other OS like Solaris 10.
• Create and manage NIC and virtual partitions on HP - UX
• Create / Monitor for active tickets periodically in the Global Service Desk for any new tickets or existing ones.
• Installed and configured new hardware and memory and applied patches as needed.
• Provided problem resolution for system hardware, software, and/or Operating Systems and developed specialized automation tools, scripts, and processes for performance monitoring of system hardware and/or software, and to assist other groups in completing their tasks.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, Ruby, Python, Maven, and Perl scripts.
• Use DEVOPS tools like Puppet to automate common administrative tasks
• Use Chef to manage and auto-update servers
• Use Jenkins with Maven to automate server builds
• Configuring SUDO and granting root permission to Backup Admins/DBAs to perform root related activities.
• Create / Change passwords for users needing access to servers for specific uses.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation.
• Responsible for troubleshooting networking issues, opening tickets for DNS changes, firewall requests.
• Responsible for implementation, integration, problem resolution, root cause analysis, quality assurance, disaster recovery, audits hardware/software OS and application maintenance and all other daily system administration functions.
• Created new slices, mounted and un - mounted file systems.
• Used Logical Volume Manager to create disk groups, volumes, volume groups, and RAID s and used tools for backup and recovery.
• Repaired bad spots on the disk using repair and analyze. Used format and fdisk for disk configuration and disk crash recovery.
• Used kick start to automate Redhat Linux OS installation.
• Applied latest patches to Solaris 10 and updated Redhat servers to desired level to meet with compliance.
• Analyzed and involved in troubleshooting of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Monitored system performance using sar, prof, vmstat, iostat, netstat, Nagios.
• Managed and implemented changes, upgrades, security procedures and policies to the UNIX client infrastructure.
• Setup and optimize XenServer
• Wrote Shell scripts to automate the administrative tasks using cron.
• Tuning the kernel parameters based on the application/database requirement.
• Provide on call support bi - weekly regarding production issues.
• Experienced in configuring and optimizing XenServer

Environment: Sun Solaris 10, SunFire V480/V490/V240/F4800/E2900, M3000, M4000, HP DL380 G5, HP DL360 G4, VMware, vSphere 4.1, RedHat 5.6/5.8, HP-UX

Confidential, Raleigh, NC

Unix Admin

Responsibilities:

• Installation, configuration & administration of RHEL 4.x,5.x, AIX 5.x,, Ubuntu 10.x,11,x.
• Configure XenServer
• Creating & administer user accounts, SUDO access, etc.
• Managing file systems; grow them on fly using LVM on Linux.
• Diagnose and correct boot failures arising from boot loader, module, and file system errors on Linux.
• Bash Shell scripting of error logs, print queue checking, and disc space status via email routing.
• Used ILO for remote access of servers on Linux.
• Perform Firmware upgrades and apply latest patches on Linux / AIX servers.
• Troubleshoot hardware, software and Operating system related errors on Linux
• Maintain & troubleshoot Storage Disks from IBM.
• Worked with DBAs to configure File Systems, users and group for Oracle Database.
• Generate daily/weekly/monthly status reports using Oracle-SQL-queries/bash-scripts.
• Manage and monitor application performance & Servers associated with the application using our web-portal, tools and processes provided.
• Migrated Backup Assistant Application across Servers as a part of the Application Migration Programme.
• Monitor system to detect and mitigate issues early to prevent larger issues.
• Responsible for daily Security checks, monitoring unsuccessful logons, monitoring inactive users and locking the inactive users in production system i.e. daily Health Checks.
• Configure NIC Partitions on HP-UX
• Generate PERL/Bash scripts to detect errors in the logs and enable log rotation of application logs.
• Create scripts with Python and Maven
• Use DEVOPS Chef and Puppet to deliver new applications and features faster
• Use Jenkins to monitor repeated jobs
• Maintain and administer 100+ Red Hat Enterprise Linux version 5 systems.
• Day-to-day system health checks of OS and application environment and Report daily system usage & metrics.
• Planning and setup of Disaster Recovery Servers.
• Follow the method of procedures adopted by the organization and open Change control tickets to perform application level installation and configuration changes to any server hosting the application.
• Work closely with Hardware Vendor Support technician at the Client site to detect and resolve any issues that related to h/w.Document the steps involved in data migration.
• Kernel tuning on Linux systems for Oracle installations.
• Installation and configuration of Logical Volume Manager, Red Hat Linux cluster Suite and VERITAS
• Day to day Linux hardware support, problem and change ticket implementations, composing scripts, OS builds & upgrades along with day-to-day Storage & UNIX Administration
• Configuration of Secured Shell (SSH) in Linux servers.
• Provided Oncall Support for Redhat Linux environment.
• Used package management tools like YUM for supporting various distributions of linux, primarily Redhat.

Environment: IBM xSeries- x3850 and x3950. Bladecenter- LS22, LS42, HS22, JS22. Enterprise Storage- DS8300. Oracle PL/SQL, bash/perl, RHEL 5.x,6.x, HP-UX, Ubuntu 10.x,11.x, VM ESX 3.x/2.x, DELL PE, Veritas Cluster Server 5.2 and VERITAS netback up 4.5.5, Sun Solaris 9/10, Oracle 11g/10g.

Confidential, Atlanta, GA

Unix admin

Responsibilities:

• Administered, maintained RHEL 4.x, (AS, ES ), Solaris 9-10, CENTOS, FEDORA, SUSE Linux 10.3 11.1 & OEL 5.5 troubleshoot hardware, operating system, applications & network problems and performance issues.
• Racking up New hardware ( DELL PE 0 R 0 R610 ) in provided DELL RACS and powering them up.
• Enabling DRAC IP ‘s to access console remotely.
• Setting up the disks ( internal and external ) in RAID configuration for PRE-OS INSTALL.
• Installed, maintained & performed troubleshoot on RHEL 4.x, 5.x, 6.x ( 32 and 64 bit ), CENTOS, FEDORA etc and configuring them for different purposes such Databases and Applications.
• Setting up, Installing, Configuring servers with Oracle VM Server and creating different Database or Application virtual machines and maintaining them over Oracle VM Manager.
• Running different, installing the required RPMS ( using physical media, virtual media and RHN ) on new servers and getting them ready for Database creation and Installing Applications.
• Installed VERITAS volume manager and implemented various RAID levels, logical volume creation, mirroring and file systems
• Maintained Separate spread sheets for physical and virtual servers. Worked on getting all the existing hardware into the server database.
• Modification / Installation of scripts include creating different directories, creating users, giving users access permissions and passwords, starting / stopping different services in different run-levels, copying all the configuration files from the central database repository to all the servers, installing / removing Packages ( RPMS ), configuring RSYNC ( used for faster file transfers ), CA BACKUP CLIENT AGENT - for back up purposes and getting the Servers ready for Oracle Database ( 9i, 10g, 11g ) and Other Application Installations.
• Deployed latest patches for Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Assisted in Server Automation techniques using HPSA for provisioning servers.
• Setup network printers and installed client/server applications. Defined/setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Linux systems
• Network trouble shooting using ‘ndd’, ‘nc’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Provided support by 24x7 shift rotation basis and pager support
• Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), Tomcat, mail (SMTP, IMAP, POP3), FTP, NFS etc. on all Linux servers.
• Setting up servers with CUPS on all manager servers (RHEL 4.x, 5.x) for printing. Created scripts to monitor print queues and notify / alert administrators if there are any idle queues and enable / disable them to restart print queues.
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment
• Hard ware maintenance and System Administration on all DELL PE servers.
• Created / Opened tickets with DELL regarding any errors in the server hardware to troubleshoot them for any CPU / IO ERRORS and replace any parts (MEMORY MODULES, PHYSICAL DISKS, DRAC CARDS, PERC - POWER EDGE RAID CONTROLLER CARDS, CPU FANS etc.).
• Created Service Tickets with Oracle - to troubleshoot, maintain virtual machines running on virtual hosts (OVS installed) / improve performance on servers with Oracle Database Instances running on it.
• Installing and setting up Oracle 9i, 10g, 11g on Linux for the development team
• Installed APEX LISTENER & WEB-LOGIC and maintaining them.
• Implemented virtualization using OVM in Linux on DELL PE series.
• Linux kernel, memory upgrades and swaps area and performed Red hat Linux Kickstart installations
• Implemented day-to-day tasks in RedHat Linux that include upgrading Rpms, kernel, HBA driver, configuring LVM file system, printing issues, connection / network issues etc.
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux.
• Upgraded all servers from Linux 4.x to Linux 5.x
• Upgraded OVM Manager from 2.2.0 to 2.2.2 & all virtual server hosts from OVS 2.1.2 to OVS 2.2.2.
• Experience in Migration of Virtual Machines between different Virtual Hosts running on OVS
• Installed OMSA on all the physical servers for hardware monitoring and setting up all the physical servers on a central server that hosts IT ASSISTANT which is used to set up alerts on all the servers.
• Created scripts to generate disk and file space alerts.
• Ran DELL DIAGNOSTICS on different servers to test MEMORY and CPU related issues.
• Developed Korn and Bash shell-scripts to automate routine activities and involved running some systemtap scripts.
• Use DEVOPS tools like Puppet to automatically enforce the correct configuration and ensure the right services are up and running
• Use Chef to test and deploy software
• Took System backups using tar regularly and Uncompressed the Database backup using LZOP.
• Manage systems using remote consoles like DRAC for DELL PE Hardware Series
• Updated data in inventory management package for Software and Hardware products.
• Capacity Planning, Infrastructure design and ordering systems.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Deleting old / expired instances and DBAN ‘d the old hardware.
• Data Warehousing and System Backup using tar, cpio for local systems and Veritas NetBackup for enterprise wide backup and recovery
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Setup network printers and installed client/server applications. Defined/setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Linux and AIX systems
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Installation of Packages and required Patches to the application.
• Setup, configuring and backup management using Veritas Net Backup.
• Daily Monitoring of Net Backup activity and reporting to proactively avoid issues.
• Worked with database administration staff to ensure optimal performance of databases, and maintain development applications, databases, and ensure database backup completed successfully.
• Involved in Data Center migration, planning and consolidation of networks from client site to the central site.
• Written Shell Scripts for automation of jobs.

Environment: AIX 5.x, Red Hat Enterprise Linux 4.x, HP-UX, Logical Volume Manger for Linux and AIX, VMware ESX Server, LPAR, DLPAR, Hitachi Disk Array, Netapp Filer, Apache 2.0, NFS, Hardware RAID.

Confidential, Cleveland, OH

Technical Consultant

Responsibilities:

• Deployed VMware ESX server3.5 3.0 (virtualization technology) for Intel platforms (Windows and Linux servers). Total of 40 ESX servers with over 600 VMs with Virtual center.
• Implementation of Microsoft DHCP, DNS, WINS, Domain trust relationship, fault tolerance, file and print services, user and group management.
• Involved in design and implement Server migration from Physical to Virtual using VMware P2V Assistant 2.1.2
• Involved in migrating physical servers to VMware virtual servers using P2V Assistant.
• Worked on Migration Projects Involving IIS 5.0 and 6.0 based applications.
• Installed VMware ESX Server 2.5 on all the physical servers to host multiple virtual machines.
• Installed Management Server (VMware VCenter Server) instance to enable centralized management of multiple hosts
• Installed VM Clusters (ESX 2.5), Hosts and virtual machines
• Converting the physical servers to virtual servers using P2V Assistant
• Enabled VMware HA, VMware DRS for higher efficiency for the Infrastructure
• Installing, troubleshooting and supporting of Desktops, Laptops, Network Devices, and Computer Peripherals.
• User Support - Monitoring and troubleshooting system performance, server & user related problems. Support users to resolve their day to day issues related to OS, E-mail, Account issues, hardware etc.
• Responsible for Backup/recovery strategy of all ESX servers. Planning and implementing fault tolerance and strategies for backup and restoring files on the network
• Responsible in diagnosing & troubleshooting of VMware ESX and Virtual Center Environments.
• Support & - Provide necessary help / to IT Helpdesk / Telecom Support Personal to resolve day to day issues.