Summary:

• Have 7 years of experience as UNIX System Administrator in Red Hat Enterprise Linux, SUSE Linux, Fedora, Ubuntu, CentOS, and IBM-AIX.
• Setting up printers / remote queues / Info-print management Migration upgrades of AIX 433/51/52/53 , including system tuning, security, backup, recovery and upgrades of IBM AIX and Linux.
• Configured Volume groups, logical volumes and file systems on Linux
• Experience in installation, configuration, Troubleshooting and administration of AIX 5L, 6.1 and 7.1
• Good Experience in AIX Migration Installation, Preservation Installation and Complete Overwrite
• Installation using CDROM and Network Installation Manager NIM.
• Setting up and configuring NIM Server.
• Installed Web Sphere Application Servers on Linux and AIX.
• Excellent in troubleshooting and Maintaining AIX and Patching.
• Expertise in configuring Kickstart and Jumpstart Installation Methods using KVM.
• Strong in LVM Storage Methodology , Performance monitoring, Error logging, Diagnostics, Dumps and Fine-tuning.
• Good experience in Administration Concepts such as Virtualization and logical partitioning LPAR of CPU, HMC usage, Workload Manager
• High Availability Setup, Setting up HACMP clusters, Designing and configuring Resource Groups, Event usage and customization.
• Administration, Monitoring and logging functions, User/Group administration, Usage scenarios of HACMP, Reduce planned downtime, Reduce unplanned downtime, Increase Maintenance availability.
• Writing shell and Perl scripts for System administration and updating them in the Scheduler / Cron.
• Configuring VIO Servers 1.5, 2.1 and 2.2 with Link aggregation and Redundant VIO.
• Hands on experience in Red Hat Linux Performance Monitoring tools using vmstat, iostat, prstat, mpstat, sar top.
• Used KVM as interactive between Physical hardware and Hypervisor manager to manage resources
• Experienced in Installation of OS, packages, Configuring the Systems, adding peripherals, maintaining user accounting, System Security, setting up NFS, AUTOFS, regular backup/recovery, performance tuning, Troubleshooting at various levels etc.
• Experience in backup/recovery/archive Hierarchical Management using Tivoli Storage Manager Backup utility and mksysb images of root volume group to meet data archiving requirements and disaster recovery readiness.
• Developed script to monitor system resources and proactive alerts to emails.
• Experienced in setting up Physical servers using KVM.
• Experienced in creation of Agents, Resources and Groups and setting up of dependencies for different services in the clustering Environment.
• Strong in networking concepts, TCP/IP protocols, Routing and Subnetting.
• Good communication skills, working without supervision, working in team environment.

Technical Skills:

Operating Systems: Linux RedHat 4.x,5.x,6x, SUSE 8 , IBM AIX 5.x/ 6.x/ 7.x, L5 AS/400 OS/2, IBM AIX pSeries servers p590, p550, p520, p670 and p630 , DB2, VERITAS Net Backup, Windows 2000/2003 server.

Hardware: IBM RS/6000, p670, p690, p650, p630, RS/6000 F50 pSeries SP2 Wide Node , HMC Hardware Management Console 7310C03 desk side model and 7310CR2 rack model ,

Networking: TCP/IP, NIM, NFS, NIS, DHCP, DNS.

Storage: EMC Symmetric, Hitachi Arrays, Sun Storage D1000, A5000/5200, SAN, NAS

Application and System Management Servers: HACMP 4.3.1 4.4, HACMP/ES 4.5, HACMP 5.1 5.3,

Tivoli storage Manager. AIX, LVM. Veritas,

WebServer: Apache Tomcat/http server, IIS, Jboss, IBM RSA/WAS, Web logic, Websphere

Scripting: Shell Scripting ksh, sh, csh, perl, bash, sed, awk, python ,Dtrace Tool Kit, C , C , VISUAL BASIC, HTML.

Work Experience:

Confidential

Role: Unix/Linux Administrator

Responsibilities:

• Installation, Configuration Upgrade of Linux, RHEL, AIX operating system.
• Installation, configuration and administration on Veritas Cluster Server, Redhat Cluster HP-MC Service Guard on various business critical databases and application production servers.
• Installation and troubleshooting of Redhat Linux 9, 8 and SUSE Linux.
• Successfully configured Kickstart in Linux.
• Configured NFS, NIS, NIS , DNS, Disk Space Management and Sendmail of Sun Servers.
• Creating User accounts, Mail account, groups, configuring printers, and etc.
• Planning creating volumes and Scheduling the job, making sure the recommended processes are taken care while volumes are created.
• Created Role Based Access Control RBAC for users.
• Set up Quotas for the user accounts limiting the disk space usage.
• Configured auto mounts/maps for the user accounts.
• Used KVM as Hypervisor managing Physical resources and created virtual guests
• Creation and Configuration of additional swap/tmp space dynamically as and when required.
• Creating new file system, managing checking data consistency of the file system.
• Metadevices, applying RAID levels, mirroring the devices, and soft partitioning.
• Installed and configured Redhat satellite server for patch and package management.
• 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 and Perl Scripting for automation of jobs.
• Implementation of RAID techniques using Veritas Volume Manager and Logical Volume Manger.
• Configured new service group resources for new application in Veritas Cluster Server.
• Monitored System performance and did kernel tuning to enhance the system performance.
• Configured SAN/EMC Symmetrix/Clariion Disk Storages devices, DNS and NAS storages on all Unix and Linux servers.
• Installation of Oracle Database Server.
• Troubleshooting of day to day system and user problems.

Environment:, RHEL, AIX, HP ProLiant DL580 and DL380, IBM P Series , , Logical Volume Manager , Veritas netbackup, HACMP with EMC, SAN Multipathing MPIO, HDLM, Powerpath , VM ESX 3.x/2.x.

Confidential

Linux/UNIX Administrator

Responsibilities:

• Installed, upgraded and configured RHEL 6.x/5.x/4.x and IBM AIX 7.x/6.x/5.x/4.x. This included Kickstart Installation, NIM Installation and CD media.
• Installed/Configured Websphere and other Application Servers.
• Installed, configured and administration of Application Server 6.x, Network Deployment, MQ 5.x, 6.0, Jboss 4.x on Linux, AIX.
• Modified existing Linux file systems to a Standard EXT3 as well as migrating all Solaris Database files to ZFS to increase system performance.
• Installed Fix packs on Application Server and added patches using Update installer.
• Installation and configuration of LVM HACMP on various AIX Servers.
• Installation and configuration of Oracle RAC 11g on RedHat Linux cluster nodes.
• Worked with Oracle Database Administrators and reviewed the required maintenance tasks.
• Installed RPM packages on Linux Servers.
• Managed builds and Deployments, Created Ant Scripts to customize EAR, WAR and JAR files and the application is deployed on WebSphere server.
• Generated HTTP plug-in config and configured with web servers by doing manual edits.
• Configured and administrated LPARs.
• Management of Linux and AIX user accounts, groups, directories and file permissions.
• Configuration of DHCP Server on Linux to get the IP Addresses Dynamically.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS and Sendmail in RedHat Linux, IBM AIX and Solaris.
• Configuration and Maintenance of AutoFs in AIX and Linux.
• Configured SAMBA to get access of Linux shared resources from Windows.
• Day to day Linux and AIX hardware support, problem and change ticket implementations, composing scripts, OS builds upgrades along with day-to-day Storage UNIX Administration.
• Tested and implemented Root disk mirroring.
• Taking Backup and restoring the data using mksysb.
• Solaris Performance Monitoring and Tuning using iostat, vmstat and netstat.
• Configuration of Secured Shell SSH in both AIX and Linux servers.
• Automated routine jobs by developing Korn, Perl and Bash shell-scripts.
• Configuration and Administration of Apache Web Server and SSL.
• Creating and managing VM's through Virtual Centre and VI client.
• Scripting for automating changes during move to speed up process.
• Responsible for Monitoring and fine tuning system and network performance for Linux systems.
• Reviewed Web Server, Application Server Performance Monitoring data using Tivoli Performance Viewer and reviewed historical Tivoli logs for root cause analysis, recurring events and involved in troubleshooting the recurring problems.
• System Backup using tar, cpio for local systems and Veritas Netbackup for enterprise wide backup and recovery
• Documenting each step and testing procedures before the migration.
• Take full gathering of data and ensure everything planned and documented so other team members can use it during their support hours.
• Provided 24/7 on call support on UNIX Production Servers. Responsible for maintaining UNIX security on Redhat Linux and IBM AIX.

Environment: Red Hat Enterprise Linux, Ubuntu, HP ProLiant DL580 and DL380, IBM P Series , Websphere 10.0, Oracle 11g/10g/9i, MS SQL, Logical Volume Manager , Veritas netbackup, HACMP with EMC, SAN Multipathing MPIO, HDLM, Powerpath , VM ESX 3.x/2.x, and Windows 2010.

Confidential

Systems Administrator

Responsibilities:

• Installation, Upgradation and configuration of RedHat Linux and IBM AIX OS IBM Blade servers and P-Series Servers using Kickstart, NIM and CD media.
• Responsible for installation, configuration, support and performance monitoring of high profile applications running on IBM WebSphere Application Servers, WebSphere Process Server and integrate with different Web Servers and configuration of web apps
• Upgraded WebSphere ND 6.0 and 6.1 with refresh packs and fix packs. Migrated all the applications on WebSphere 5.1.1.12 to 6.0.2.9 and to 6.1.0.9
• Implemented the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Installing and configuration and maintenance of Veritas Net Backup 6.0/5.x.
• Worked on HACMP clusters in SAN environment EMC .
• Creation of Logical volumes LVM for Red Hat Linux and IBM AIX operating systems.
• Installation and customization of Window 2003 servers.
• Configuration and Administration of NFS, NIS, NIS , LDAP, DNS, Samba and Sendmail Servers.
• Working knowledge of VMware Virtualization .
• Upgrading VMware server 2.x to 3.x.
• Installed RPM packages and LPP on Linux Servers and IBM P-Series AIX Servers.
• Oracle installation system level support to clients.
• Installed and configured the iPlanet Sun One Web servers setup firewall filtering with Squid Proxy server for web caching on Sun Solaris.
• Written shell scripts to automate the administrative tasks using cron and at in AIX and Linux.
• Validated monitored and Analysed Batch Jobs.
• Backup Schedules for Linux Servers using DLT Tape drives.
• Performance monitoring using Sar, Iostat, VMstat and MPstat on AIX servers.
• Logging events and forcing crash dumps, securing servers and troubleshooting issues.
• Troubleshooting and resolving of problems related to hardware, operating systems, third party applications and scripts.
• Initiating Backups on daily basis and monitoring the scheduled backups.
• Provided Oncall Support for Redhat Linux and IBM AIX server environments.

Environment: Redhad Linux AS3.0, AS4.0,VXFS, IBM P Series AIX servers, Veritas Volume Manager, Veritas Net backup, DNS, NIS, NFS, Sendmail, Oracle 10g, MYSQL, Weblogic 9.2,Websphere VMware 3.x/2.x and HACMP.

Confidential

Linux and Unix Administrator

Responsibilities:

• Administered, maintained Red Hat 3.0, 4.0, 5.0 AS, ES, Troubleshooting Hardware, Operating System Application Network problems and performance issues Deployed latest patches for, Linux and Application servers, Performed Red Hat Linux Kernel Tuning.
• Installation, Configuration and Administration of AIX 4.3.3, 5.1 HACMP 4.4.
• Upgraded AIX 4.3x to AIX 5L v5.1, 5.2, 5.3.
• Installation configuration and maintenance of Highly Available Cluster Multi Processing HACMP .
• Experience in Migration of HACMP 4.3.1,4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup
• Installation and upgrade of HPUX 10.x to 11.x .
• Install and configure DHCP, DNS BIND, MS , web Apache, IIS , mail SMTP, IMAP, POP3 , and file servers on AIX and Linux servers.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Experienced working with Preload Assist and PICS projects.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Migrated database applications from Windows 2000 Server to Linux server.
• Implementation of Samba to help printing and file sharing in the mixed Environment.
• Installing and setting up Oracle9i on Linux for the development team.
• Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Administered and Developed MQ V5.3, V6.0 MQSeries .
• Designed and implemented DB2 connect.
• Implemented Virtualization using VMWare in Linux on HP-DL585.
• Linux kernel, memory upgrades and swaps area. Red hat Linux Kickstart Installation.
• Hardware Maintenance and System Administration of existing RS 6000 running AIX 40 systems in Network
• Created users, manage user permissions, maintain User File System quota on Redhat Linux and AIX.
• Configured and administrated Lpar's/DLpars's.
• 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. Define/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
• Performing upgrades of OS and applications.
• Provided support by 24x7 shift rotation basis and pager support
• Diagnosed hardware and software problems and provided solution to them
• Monitored trouble ticket queue to attend user and system calls
• Developed Korn and Bash shell-scripts to automate routine activities.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment
• 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.

Environment: Red Hat Linux 3.0,4.0,5.0 AS ES, AIX 4.3,5.1,5.2,5.3, HP-DL585, HACMP 4.2.x,4.3,4.3.1,4.4 , HPUX, Veritas Netbackup 4.5.5, Oracle 9i/10g, Samba, NT/2000 Server, Web Logic 8.1,DB2 Connect, VMware 2.x, LPAR, DLPAR , PICS, Preload Assist, Tomcat 3.x,4.x,5.x, Apache Server 1.x,2.x, MQ V5.3, V6.0,DB2 Connect, Korn, Bash.

Confidential

System Engineer

Responsibilities:

• Installed, upgraded, Mirrored and configured RHEL 3.x, IBM AIX 5.1 and Sun Solaris 9.0/8.0 using Kickstart, NIM and Jumpstart Installation respectively.
• Installed, configured WebSphere Application Server 6.0, WebSphere Portal Server in a clustered environment
• Excellent knowledge of Different Installation processes. Mostly worked on Silent Installation using Response file.
• Deployed Portlets manually using Admin Console.
• Deployed Themes and Skins on to WebSphere portal server.
• Maintenance of the WebSphere servers on different UNIX platforms and setting up the development and testing and staging environment for the ongoing application development
• Participated WAS migration from WAS V5.0 to V6.0
• Disk and File system management through Solstice Disk Suite on Solaris.
• Disk Management using different raid technologies in Solaris, AIX and Linux using VERITAS Volume Manager and LVM.
• VERITAS Cluster Installation and Configuration along with Resources and Service Groups Configuration in VCS.
• Configuration and administration of DNS, LDAP, NFS, NIS and Samba in Redhat Linux, IBM AIX and Solaris.
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Administered and Managed Network Applications and Services like NFS with Hummingbird connectivity V7.1.
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories files using access modes.
• Written Shell scripts to run Batch Jobs on AIX servers.
• Provided system performance reporting on a regular basis along with keeping all software at current version levels, and maintaining a log of changes for tracking.

Environment: IBM RS/6000, IBM PSeries, Pentium PCs, Linux Servers ,Veritas volume manager, Sun Disk Suite, Veritas Net Backup, Sun Cluster in SAN environment, Oracle 9i, HP-UX, Redhat Linux 3.x, IBM AIX 5.1, Solaris 9.0/8.0, Windows 2003/2000.