SUMMARY

• 7 years of experience as a System administrator for UNIX/LINUX environment.
• Linux System Administration skills (Red Hat, & VMware ESXi)
• Expertise in installation, administration, patches, upgradation, configuration, performance tuning and troubleshooting of RedHat Linux 4/5/6, Sun Solaris 8/9/10/.
• Experience with high - end enterprise servers like Sun T2000, 5240, M5000, 6800, 4800, HP Proliant DL 380, 385, 580, BL480c, BL685c, BL400c Gen5,6,7,8, IBM HS22, HS12, LS22 Blade center Servers.
• Maintain and use Red hat Kickstart servers, Solaris Jumpstart Servers and NIM Master for installs and upgrades. Plan and implement service updates and Patch Administration for security patches.
• Extensivley worked on VERITAS Volume Manager and VERITAS File System, Veritas Cluster Services troubleshooting and Administration.
• Disk space and File system management using VERITAS Volume Manager 4.x, 5, Logical Volume Manager and Solaris Volume Manager, and ZFS.
• Implementation of High Availability Solutions using VERITAS Cluster Server 4.1/5, Redhat Clustering 5.
• Experience in Performance Monitoring of CPU, Memory, Disks, Network using various monitoring tools like Nagios, HP Openview, BMC for UNIX.
• Experience in Installation, Configuration, Implementation, Upgradation, Maintenance, Support & Troubleshooting of different Core/Layered Applications like BMC Bladelogic, HP Openview, Tivoli Storage Manager, Autosys and databases like Oracle 11g, Oracle RAC 11g.
• Experience on Web servers such as IBM Websphere 6.0, Tomcat 5.x/4.x/3.x & Apache Http Server 1.x/2.x, Oracle Weblogic V7/8/9.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Expertise in file system concepts like LVM, SVM,VxVM.Creating new file systems, increasing and decreasing file systems, mounting file systems, unmounting file systems and troubleshooting Disk space issues.
• Configuration and administration of Fiber card Adapter’s and handling Linux/Solaris part of SAN (SAN arrays, HITACHI, EMC, Netapp).
• Experience in SAN Replication Methodologies like EMC SRDF with EMC VMAX Storage.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VxVM and SVM and configuring Hardware Raid using Raid Controllers.
• Expertise in LDAP setup and Administration.
• Configured Networking Concepts DNS, NIS, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Providing 24/7 technical support to Production and development environments.
• Experience in Shell scripting using sh, ksh, bash and PERL
• Experience in architecting, setting up data centers and migration of applications.
• Experienced in implementing the workload Management (WLM) using cloning and clustering.
• Strong analytical, diagnostics, troubleshooting skills to consistently deliver productive technological solutions.
• Excellent client relation skills and the ability to communicate effectively with all levels of management and the client community.

TECHNICAL SKILLS

Operating Systems: Linux(RedHat 3.x,4.x,5.x,6.x,), Sun Solaris 7,8,9 & 10, VMware ESX 2.x,3.x,4.x. Windows 2000/2003/2008 NT 4.0, Windows 98/2000/XP.

Hardware: IBM x236,IBM x232,IBM x3650,IBM HS22,HS12,LS22 Blade Center, SunT2000, T5240, T5120, HPC7000, BL460c, BL685c, BL465c, BL620c, SunSF15K, SF10KSF6800/4800, SF480/280, V880/890, E6500, E 00, E450/420/250, E220, Netra1405/X1, T1000/2000, T5120/5220, M4000, B6000.

Application Servers: Apache, Tomcat, Web Sphere Application Server 3.5,4.4, MQSeries WebLogic Server, Solstice Disk Suite, Sun Cluster 3.4 & 4.1, VERITAS File System, VERITAS Volume Manager, VERITAS Net backup 5.1, VERITAS Cluster Server 4.x & 5.x, Nagios.

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

Programming Languages: C, C++, Shell scripting and Perl programming.

Scripts: Bourne, Bash, Korn shell.

Databases: Oracle 8i/9i/10g, Sybase, SQL Server 2005/2000, DB2, PL/SQL.

PROFESSIONAL EXPERIENCE

Confidential, NAPERVILLE, IL

SENIOR UNIX/SOLARIS ADMINISTRATOR

RESPONSIBILITIES:

• Installed, Configured and Maintained Solaris/RedHat Linux (Solaris 8,9 & 10, RedHat Enterprise Linux 4.x,5.x & 6.0) on SPARC, x86 and HP,IBM Blade Centers.
• Supported Redhat servers in Production and Development environments.
• Installed and Configured DNS, DHCP, FTP, TFTP, NIS, and NFS in Redhat Linux.
• Worked with VMware Infrastructure Components, Virtual Center, vSphere and Installing ESX.
• Installed ESX Server 4 and build Virtual Machines.
• Configured Zones on the Solaris 10 servers created Resource pools and Fair share Scheduler for Containers.
• Installation of Solaris 9, 10 using Jumpstart, Red hat EL 4.x, 5 using Kickstart/PXE.
• Upgraded the kernel to 2.6 for existing Linux servers by recompiling kernel and also live upgraded from Solaris 9 to Solaris 10.
• Worked with IBM X series, HP DL and Dell Power Edge Model rack and blade centers like HP C6000 & C7000.
• Installed and Configured 10GbE Dual port Cards for Solaris Sparc for Active/Passive, Aggregation (LACP L4 Active-Passive) modes, IPMP and Active-backup (mode 1), LACP (mode 4) for RHEL 5/6.
• Performed SAN Migration(Host-Based Data Migration) on RHEL and Solaris servers using Veritas Volume Manager.
• Installed, configured and implemented Oracle RAC (Real Application Cluster) environment as per bank standards with help of Oracle DBAs.
• Configuring Solaris containers/zones, resource allocation etc.
• Created new slices, mounted new file systems and unmounted file systems.
• VMware Infrastructure 3.x/sphere Installation & Configuration.
• Planning and Designing VMware VI3/vSphere (ESX3.5/ESXi 4.0/ESXi 4.1 and VMware VirtualCenter) Environment.
• Used Veritas File system (VxFS) and Veritas Volume Manager (VxVM) to configure RAID 1 and RAID 5 Storage Systems on Sun Solaris.
• Setup optimal RAID levels (fault tolerance) for protected data storage in NAS environments.
• Implementation of High Availability using VERITAS Cluster Server 5.0 and 5.1 using Oracle Agents.
• Handled installation and maintenance of workstations, servers, networking equipment, and other supporting hardware.
• Documentation of critical issues, activities performed on servers, technical procedure and for audit.
• Involved in 24X7 Production support, Build and Migration Assignments.
• Performance Tuning, Query Optimization, Client/Server Connectivity, and Database Consistency Checks using different Utilities.
• Involved in migration activities using Redhat LVM, Solaris SVM, Veritas and EMC Open Migrator.
• Administration of Web based Internet/Intranet Client/Server multi-tire distributed applications, Installing Patches & packages on Unix/Linux Servers.
• Configuring Logical volume manager by extending its logical volume and physical volume size.
• VERITAS Volume Manager and VERITAS File System troubleshooting and Administration.
• Mutli-tier application environment with Weblogic, Websphere. Mission Critical 24x7 Servers support.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Analyze and suggest remedial methods on performance issues.
• Package and patch administration.
• Turning the kernel parameters based on the application/database requirement.
• Writing Shell, Perl & scripting for Linux/Unix Systems Administration and related tasks.
• Installation, configuration and maintenance DNS servers, Mail servers, RPM, Zones, LDAP and Microsoft Active Directory & Samba Web servers on Sun Solaris, Linux platforms.
• Storage / Servers daily checks, performance tuning, performance monitoring and health checkup.
• Storage LUN provisioning; Qtree, CIFS File System, NFS File system Management
• Design, Implementation, Testing and Deployment of VMware Infrastructure. Installed, configured and maintained hosted VMware products.
• Other administration tasks handled are: Tuning the Operating System for optimum performance, Debugging system defects and crash dump analysis, Planning and Executing System and Network Upgrades.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 9, 10, 11, HP DLseries G8, IBM X series, Logical Volume Manager, VERITAS Volume Manager, Solaris Volume Manager, VERITAS Cluster Server, Oracle 10g,11g,Vmware 5.1.

Confidential, TAMPA, FLORIDA

LINUX/SOLARIS ADMINISTRATOR

RESPONSIBILITIES:

• Supporting Linux System Administrator customers with RHEL/SUSE a combination of systems architecture, systems development.
• SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, and standards validation/development, troubleshooting and problem resolution.
• Installed OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Installed and configured of hardware and OS (Solaris 10 and RHEL 4/5) on x86 servers.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Installed and Configured both Kickstart and Jumpstart Servers for the Infrastructure Server Deployments.
• Solaris OS Hardening as per company security standards.
• Installation and use of different Business packages on Solaris Platform.
• Applying OS and security patches for Solaris Operating Environment.
• Involved in migrating from Solaris to Linux and windows to Solaris and Linux servers.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.
• Implemented Puppet Version 3 for Automation in the Non-production environment.
• Handled effectively Issues related to NFS, NIS, and LVM, Grub corruption, configuration & maintenance of RAID (level 0, 1, and 5).
• Troubleshooting VERITAS Volume Management and cluster server environment.
• Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for Veritas Cluster with Netapp SAN.
• VMware configuration, automount, installing Solaris/Linux software and patches, NTP and swap space, memory and capacity alerts, SSH and k5login and hung system reboots.
• Writing scripts in PERL and SHELL to automate the process.
• Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Monitored health of servers and implemented customized solutions where applicable as well as provide reports on server utilization. Standardization, Documentation and Processes.
• Creating volumes using storage for VMAX Array on Redhat & Solaris servers.
• Installation of Windows Server 2003 and creating Active directory Users.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Created test scenarios for testing NIS, NFS, DNS and other functionality of the OS. Maintained system security, including password checks, permission scans, implementation of security ensuring tools Linux environment.
• Daily backup and restore operations.
• Installed and maintained web servers Apache Tomcat and Apache HTTP (1.3, 2.2) Web server in Red Hat Linux.
• Dealt with Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers.
• Maintaining device installation and configuration.
• Installation of Firewall checkpoint. Installed and configured IPFilter, to protect Linux system that was placed on the Internet.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V 20 T5240 Sparc M5000, Switches, VMware ESX 5.1, oracle 11g, Veritas Cluster Server 5.

Confidential, THOUSAND OAKS, CA

SYSTEMS ADMINISTRATOR

RESPONSIBILITIES:

• Installation, Upgrading and deployment of Linux Operating system, Sun Solaris Operating System on X-86 based HP BL460 G5, G6 and G7 Hardware and SUN Enterprise servers.
• Installation and configuration of hardware and OS on servers, workstations and I/O devices on E4500 environment.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Installation, Configuration and Administration of VERITAS Storage Foundation Suite, VxVM, VxCS and Vxfs for Solaris and Linux Servers.
• Installation and support of various applications like Weblogic server 10, WebSphere 6.1, Apache 2.x, Oracle 9i, 10g, on Solaris 10.
• Installed Apache Http server for Kickstart setup and repository setup for all the Linux clients Servers to download packages and Linux upgrade.
• Installed and Administered Veritas volume manager 3.5 on Ultra Sparc E250, E450, Sun E3000 machines and configured RAID 0, RAID 1, RAID 0+1 and RAID 5.
• Integrated different Applications like websphere, weblogic, MQM, Oracle, DB2, Sybase.
• Setup and maintained NFS, DNS, NIS, and TCP/IP network and knowledge in LDAP Server.
• Experience in configuring volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Familiar with Disk Management Utility. Used daily for file system creation and file system management.
• File system tuning, growing and shrinking with VERITAS File system 4.x/5.x (Vxfs).
• Configuration of Kernel parameters as per application requirement.
• Associated with bank infrastructure management and BMC support team while deploying the Linux servers for cloud infrastructure.
• Associated with DBAs for installation of Oracle database and Sybase on Linux and Solaris servers.
• Written Shell and Perl Scripts for System Administration tasks.
• Organizing DR (Disaster Recovery) server tests to make sure the infrastructure is correct and the DR servers are working as expected as in production servers.
• Worked with storage teams to split the R1 and R2 disk groups to enable the SAN disks to read/write mode on DR servers and worked with DBA’s and software system analyst to troubleshoot and testing the functionality of their applications o both Prod and DR servers.
• Familiar with remote consoles like ILO for HP Hardware and HMC for IBM P-series to manage systems.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.
• Worked on DNS, NIS Master Slave Servers along with required clients.
• Worked on scripting using shell, bash and korn.

Environment: Solaris 9,10, Red Hat Enterprise Linux 5.x, VERITAS Volume manager, VERITAS File System, VERITAS Cluster Server 5.1, VMware ESX sever 4.0, HP Proliant servers BL460, BL685, IBM P550, P590, Enterprise scheduling Product, Tivoli Storage Manager.

Confidential, QUINCY, MA

LINUX ADMINISTRATOR

RESPONSIBILITIES:

• Administered servers in heterogeneous environments which include Solaris and Linux systems.
• Handled all system administration duties for all Red Hat Linux and VM Servers on site.
• Responsibilities ranged from daily tasks to more advanced ones such as shell scripting, software installation and system/network troubleshooting.
• Installed and Configured Web, Application and Mail servers. Wrote shell scripts for automating tasks.
• To enhance the performance, monitored the file systems and CPU load.
• Automated Time Monitoring on Servers through shell script and added checkpoint to ensure the script is running via crontab entry; setup mail alerts also.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Maintained NAS storage.
• Analyze and suggest corrective methods on performance issues.
• Package and patch administration.
• Adding additional and extension of existing File systems using VxVm and Vxfs.
• Responsible for Oracle DB Setup and Instant Client Installation and configuration; Perl DBD.
• Oracle Module Compilation. Assisted Oracle DBA in writing scripts for automating Oracle tasks on the UNIX Server.
• Performed DBA Performance Tuning and Administration. Managed all aspects of database administration from upgrades to disaster recovery and performance tuning, testing the performance.
• Maintaining network inventory, data backup and documentation for all hardware & software.
• Performed workstation and server installations and upgrades, standardized workstation configuration, automounter, send mail, and hardware upgrades; administration support and troubleshooting duties in a 24x7.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V 20 T5240 Sparc stations 20, Switches, VMware ESX 5.1, oracle 11, Veritas Cluster Server 5, Veritas Operations Manager.

Confidential

LINUX Administrator

RESPONSIBILITIES:

• Installed, Configured, and Upgraded Sun Solaris, RedHat Linux.
• Managing user accounts, passwords, setting up quotas and support.
• Worked on Linux Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SFTP, SSH, LDAP integration.
• Using LDAP, controlled the access to users by adding or removing the user from the groups as per the requirements.
• Troubleshooted LDAP server if there is any login issue for the users.
• Used LDAP to set Permissions, as an administrator to allow only certain people to access the LDAP database
• Managing file systems and disk management using Solstice Disksuite.
• Responsible for configuring real time backup of web servers.
• Wrote shell scripts for automated installations, to extract logs.
• Co-ordination with Vendor for procurement /Hire systems for projects.
• Document solutions for any issues that have not been discovered previously.

Environment: Dell Hardware, RHEL 3.x, Sun Solaris 2.6 and 2.7, Sun E450, E250, Sparc stations 20, Switches, Hubs, DAt & DLT Tape Drivers, Apache, and Oracle 8i.