SUMMARY:

• 10 plus years of experience in RedHat Enterprise Linux and Solaris Administration in heterogeneous environment.
• Experienced in installing Sun Solaris 10/9/8, Red Hat Enterprise Linux Server 3.0/4.0/5.0/6.0.
• Setting up Kickstart and Jumpstart for Automatic Installation of Solaris and Linux.
• Configuring and maintaining Zones, LDOMs and ZFS in Solaris.
• Configuring NFS and troubleshooting NFS related errors.
• Maintaining backups/restores using Veritas Netbackup in SAN environment.
• Experienced in implementing and Configuring of RAID levels using Linux LVM, Solaris Volume Manager and Veritas Volume Manager.
• Extensive experience on Veritas Volume Manager and Solaris Volume Manager and Logical Volume Manager.
• Experience working on Veritas Cluster software.
• User administration, Package administration, Patch management, ACL’s and File System management.
• Configuration and management of SSH, FTP and Telnet.
• Tuning kernel parameters according to application requirement.
• Interface Multipath experience using IPMP and Bonding for network redundancy
• Storage multipath using EMC PowerPath and Veritas DMP for storage devices.
• Experienced to work in Storage Area Network (SAN) and Brocade Switches.
• Experienced in zoning using Brocade CLI.
• Knowledge on Storage arrays such as EMC Symmetrix, Hitachi, Sun Storage 5xxx/D1000 series.
• Knowledge in EMC Clariion Administration by Using Navisphere Manager.
• Knowledge in Symmetrix/DMX administration using SYMCLI.
• Knowledge on different VMware products like VMware workstation, VMware server, VMware player, VMware Converter and ESX server.
• Experienced to work in Data Centre environment and providing 24x7 support to multiple projects and applications.

TECHNICAL SKILLS:

Operating Systems: RedHat 3.0/4.0/5.0/6.0, Sun Solaris 8/9/10/11, AIX 5.1 and Windows 2000/2003

Hardware: HP DL385 G6, DL585 G5/G6, SPARC T4 - 4, Sun Enterprise T5220, T5420, Sun Fire V440, Sun Fire V880, Sun Fire V240, Sun Fire 480R/ 280R, IBM pSeries, Brocade 4100, 3900 and 3800, Sun Enterprise E4500, E3500, Hitachi 9570 and 9585, EMC Clariion and Symmetrix.

Networking: SAN, NFS, Auto FS, NIS, NIS+, DNS, Configuration of RIP, IGRP, EIGRP and OSPF

Tools: VERITAS Volume manager, VCS, VERITAS NetBackup, Solaris Volume Manager, Navisphere, VMWare

Languages: Shell Scripting, shell programming, perl, html and javascript. Zones and LDOMs

PROFESSIONAL EXPERIENCE:

Confidential

Senior Linux Administrator

Responsibilities:

• Senior Unix admin for AIX and RHEL platforms supporting large scale finance, HR and Marketing applications for Confidential
• Supported 1000+ AIX (5.3, 6.1, 7.1) Lpars and VIO servers across various PSeries Hardware (P7, P6, P5, P4)
• Supported 500+ Red hat Linux servers(6.x, 7.x) including VMs and Physical servers on HP ProLiant hardware
• Installing Configuration and maintenance of Redhat Linux 6.X/7.X
• Worked on configurations and installations Linux servers using Kick start
• Designed and implemented virtualization using PowerVM and Vmware
• Built several hundred AIX, VIO and Linux servers using various build tools and methodologies including Bladelogic, NIM, Kickstart, viewpoint, xcat, PXE Boot and automated Kickstart/Jumpstart Installations.
• Built several High availability clusters on AIX using PowerHA (6.1, 7.1) and on Linux using Pacemaker
• Solved several critical and complex UNIX and infrastructure issues including P1 issues
• Performed several problem determination and root cause analysis
• Installed several third party software on unix/linux for infrastructure management
• Extensive experience using Bladelogic for server automation
• Planned, Implemented and supported EMC Timefinder clone solution for Large Database backups
• Supported various database servers like DB2, Oracle, Sybase and various middleware servers like websphere, Tomcat
• Managed Firmware Updates & Patch Installation process
• Worked wif various Logical volume management like AIX LVM, Linux LVM, HpUX LVM, Veritas VxVM
• Deployed servers from scratch (Rack and Stack, Network and SAN connectivity, Virtualization, etc)
• Expertise in Incident and Problem determination and resolution wifin Expected time frame to meet SLA; having working noledge of BMC Remedy incident management system and Change Management Procedures.
• Wrote shell scripts(bash, korn, perl) for automation of routine tasks

Confidential

Sr.Linux/Unix Administrator

Responsibilities:

• Installation and configuration of Red Hat Enterprise Linux server 5.x/6.x and Oracle Solaris 10.
• Creating Hardware Raid and LVM’s and administering them in Redhat Linux.
• Involved in the configuration of yum servers for centralized repository to keep the yum clients up to date.
• Configuring and administering of Zones and Ldoms on Solaris servers.
• Creating Zpool and configuring ZFS File system on Solaris servers.
• Creating VMware Templates for newly released Linux releases.
• Configuring and managing the RAID levels under VxVM.
• Administering of High Availability Veritas Cluster Servers for redundancy.
• Managing disk storage using Veritas Volume Manager 5.x/6.x, Linux LVM and Solaris Volume Manager.
• Installing HBA drivers, firmware and EMC Powerpath.
• Performed powerpath upgrade on Linux OS disks.
• Performed host based storage migration on Linux servers using LVM and Powerpath Migration Enabler.
• Requesting additional storage from Storage team and add the LUNs to the servers.
• Performing online addition of LUNS to the servers for provisioning disk space, and resizing file systems.
• Troubleshooting hardware and software failures on Linux and Solaris and logging cases wif Redhat, Oracle Solaris and Symantec support for hardware and software related issues.
• Co-coordinating wif different teams which include network, firewall, DBA, Backup, Storage and application team while troubleshooting and resolving issues.
• Installed application software which includes Websphere and IHS Web server on Linux servers.
• Configured Oracle Database Appliance (ODA) from OS perspective.
• Management of user accounts and groups according to the security needs.
• Upgrading Solaris kernel and Linux kernel and applying necessary patches on a regular process.
• Managing NFS in client-server architecture.

Environment: HP DL 685c, DL585 G5/G6, BL 460C G6/7, BL 680C, SPARC T4-4, T2000, T5220, T5420, Sun Fire V440, V880, Veritas Storage Foundation and High Availability, Clariion and VNX

Confidential

Sr.Linux/Unix Administrator

Responsibilities:

• Installation and configuration of Red Hat Enterprise Linux server 3.0/4.0/5.0 using kickstart and Sun Solaris 8/10 using manual and Tivoli Process Manager.
• Providing 24/7 support.
• Creating logical volumes and maintaining them in Linux.
• Administering of High Availability Veritas Cluster Servers for redundancy.
• Configuring VCS 6.0 for Tibco EMS and VCS 5.1 for MQ applications.
• Creating Resource pools and processor sets for zones.
• Managing disk storage using Veritas Volume Manager 4.1/5.x/6.x, Linux LVM and Solaris Volume Manager.
• Upgrading Veritas Volume Manager from 4.1 to 5.0.
• Installing HBA drivers, firmware and Powerpath software in Production, Development and QA servers.
• Managing data backup and recovery operations using Veritas Netbackup.
• Configured volume groups and logical volumes, extended logical volumes for file system growth using Logical Volume Manager (LVM) commands.
• Coordinating wif Tivoli team for setting automated alerts which include OS related alerts and Application alerts.
• Configuring ASM devices and installing Oracle packages for database setup and supporting the servers running Oracle RAC clusters.
• Creating Zpool and configuring ZFS File system on Solaris servers.
• Configuring and administering of Zones and Ldoms.
• Administration and Troubleshooting Solaris and Linux servers running business critical applications, TIBCO, MQ & Websphere applications.
• Management of user accounts and groups according to the security needs.
• Upgrading Solaris kernel and Linux kernel and applying necessary patches on a regular process.
• Performing online addition of LUNS to the servers for provisioning disk space, and resizing file systems.
• Upgrading service controller firmware on T2000/T5220 servers.
• Installing BMC package for resource data collection, Tivoli package for monitoring (ITM), ESM package for monitoring configuration files and troubleshooting.
• Monitoring system resources, disk usage, scheduling backups and restore.
• Performed root cause analysis of technical issues.
• Configuring and troubleshooting NFS, FTP and SSH for users.

Environment: HP DL 380 G7, DL385 G6, DL585 G5/G6, BL 460C G6/7, BL 680C, Sun Enterprise T2000, T5220, T5420, Sun Fire V440, V880, Sun Fire 6800, 6900, HP DL360, M5000, HP DL585, IBM WebSphere 5.1/6.1, IBM AIX 5.3, p Series servers p570, p670, Veritas Volume Manager, Veritas Clusters, Veritas Netbackup, NetApp Filers and Symmetrix DMX4/VMAX.

Confidential

Unix Administrator

Responsibilities:

• Supporting and working on call for 24x7 and Responsible for all day to day system administrator tasks.
• Installed Red Hat Enterprise Servers 3.0 and Sun Solaris 8.
• Managing users/groups, local and NFS file system needs of the applications.
• Managing file systems using VERITAS Volume Manager.
• Kickstart Installation for Linux servers to setup unattended installation.
• Package administration for all applications in installed infrastructure and
• Install/Update patches and firmware.
• Planning and scheduling periodical maintenance for all hardware.
• Server performance monitoring ad troubleshooting for server related problems.
• Coordinating wif SUN Micro systems related to support issues.
• Coordinating wif storage administrators for storage allocation.
• Backup and restoration of data using VERITAS netbackup.

Environment: Sun Solaris 5.8, Red Hat Enterprise Linux 2.1/3.0, VERITAS Netbackup, VERITAS Volume Manager 3.2, IBM x330, IBM x345 Servers, Sun Fire 480/E220/E450, Sun Storage Tek SL500.

Systems and Network Administrator

Confidential

Responsibilities:

• Installation and administration of Sun servers, Red Hat Enterprise and windows servers running on heterogeneous hardware platforms including Intel and IBM platforms.
• Installation and maintenance of Apache http server.
• Maintenance of DNS, FTP, Mail and Autantication services for the users.
• Installation of database servers: MySQL 3.0 and Oracle 8i. DB features are provided for the wide customer base as a part of the ISP facilities.
• Developed shell scripts for easier administration and to monitor CPU usage, disk usage, and system resources.
• Streamlining the Windows to Linux interaction by implementation of NFS and Samba for internal use.
• Installation and configuration of SSH services such as SSH shell, SFTP and SCP.
• Configuration and maintenance of different hardware devices such as NIC cards.
• Maintenance of NIS on Linux Server for centralized user autantication.
• Scheduling and Implementation of regular backups and restoring data at times of need.
• Troubleshooting and diagnosis of all Network related issues at the hub network as well as remote end network.

Confidential

Unix Administrator

Responsibilities:

• Responsible for Installation, Configuration, Support and Troubleshooting existing systems in AIX 5.2 and 5.3 operating environment.
• Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment
• Setting up NIM servers and clients for New & Complete Overwrite/Migration Installation management and Nimadm Upgrade.
• Performed various methods of AIX Installation/Migration using alternate disk installation
• Have upgraded servers from AIX 5.1 and 5.2 to 5.3.
• Experience wif installing and upgrading powerpath, SYMCLI and ECC Master Agent.
• Have extensively performed IP Migration for the servers in various UNIX platforms(AIX, Linux) so that servers having similar applications are on same domain.
• Responsible for implementing multi path i/o(MPIO) for high availability of application and data.
• Responsible for testing a manual takeover configuration in a HACMP environment using clstat, clverify, etc., commands.
• Configuration management including the building of LPARs using HMC and configuring the hardware devices that support them.
• Extensively used LVM - created VGs, LVs & disk mirroring for IBM p-series servers.
• Experience in studying the kernel performance issues using various utilities like topas, vmstat, svmon and iostat.
• Responsible for backing up the system image “mksysb” and restoring them during the system recovery process.
• Capacity planning of disk space and hardware resources required for production and developments.
• Installed and configured Sudo for users to access the root privileges.
• Utilized the crontab utility to schedule various System admin tasks.
• Have performed network backup, restore and archiving of network clients using TSM.
• Have installed and configured Tivoli Monitoring Agent on AIX/LINUX.
• Strong Shell programming for application management, performance and security monitoring including their maintenance.
• Responsible for migrating and decommissioning of the system.