PROFESSIONAL SUMMARY

• 7 years of experience as a System Administrator in Red Hat Linux,UNIX, SuSE, AIX, Solaris and Windows server.
• Experience in monitoring the availability performance of UNIX servers
• Strong experience in Installation, Upgrading, Migration, Configuration, Troubleshooting, Administering Unix systems, Performance and Fine-tuning of Fujitsu Prime-powers, HP DLs , Sun/Oracle v, T and M series servers, Sun Fire 15k server, IBM pSeries servers.
• Expertise in installing, upgrading and configuring Red Hat Serversusing KickStart and Solaris Server using Jumpstart.
• Hand on experience with installation of patches, Security fixes, packages on Linux and Solaris servers.
• Experience in implementing and configuring ofVolume Managementusing Veritas Volume Manager VxVM , Solaris Volume Manager SVM in Solaris and Logical Volume Manager LVM in LINUX.
• Knowledge of Large-scale Linux Server deployment methods, Kernel compilation and configuration, performance monitoring and tuning.
• Preparing DR scripts and discussing with UNIX Admin, SME's and onsite DR experts
• Excellent experience in building and deploying UNIX /Red Hat KickStart, PXE, and NFS Servers.
• Experienced on Clustering, Load Balancing techniques to ensure High Availability and Disaster Recovery.
• Excellent Virtualization experience with VMware Technologies, solaris zones, ldoms.
• Excellent scripting skill in Shell BASH and Perl.
• Expertise in Configuring and troubleshooting various OS, Networking, Hardware related issues and performing preventive maintenance.
• Hands on experience in various web servers like Apache, Tomcat, JBoss, and Apache with Tomcat.
• Hands-on experience in various monitoring tool like Nagios, Tivoli, Cacti.
• Experience with deploying and supporting operations of applications on the LAMP Stack.
• Strong understanding of advance TCP/IP, UDP, IPv4, IPv4, Subnetting, IPv6.
• Excellent experience with hardening OS security, software and hardware firewalls.
• Hands-on experience withHP, Bell, IBM, SUN blade and rack servers.
• Strong Server build skill and setting up client/server services like NFS, NIS, DNS, DHCP, SMTP, POP3, HTTP/HTTPS, SSH, LDAP, VNC, Samba, Sendmail, Postfix, Qmail etc.
• Hands-on experience with VCS, Veritas Net Backup and Veritas Volume Manager.
• Experienced with Oracle administration, performance tuning and troubleshooting issues.
• Knowledge on migration projects and capacity management software.
• Knowledge on SAN of EMC Symmetrix, CLARiiON CX300 Storage Arrays and Dell Equalogic storage.
• Experience of working in Data centers with 24x7 Production and On-Call Environments.

TECHNICAL SKILLS:

PROFESSIONAL EXPERIENCE:

Confidential

Title: UNIX/Linux Administrator

Responsibilities:

• Design and implementation of AIX NIM environment for server build, migration, recovery, and patching and managed NIM resources and objects for NIM operation.
• Installed, configured, and managed VIO servers for test and production environments for hardware virtualizations with high availability and redundancy.
• Managed Logical Partitions LPARs , including HMC for IBM Power 5 and Power 7.
• Planned and directed the implementation of and tuned, customized and maintained the UNIX servers, to help increase productivity and application availability and stability.
• Performed system maintenance on a regular basis, to identify potential hardware and software failures and took appropriate actions.
• Provided Primary Support and performed Disaster Recovery Exercises.
• Implemented and supported an automated systems reporting solution for UNIX servers utilizing SSH keys and scripts.
• Developed MKSYSB scripts for all our AIX hosts, and deployed them via AUTOSYS.
• Improved monitoring and reduced noise tickets.
• Participated in 24/7 on-call duty rotation, supporting over 800 UNIX Servers spanning multiple remote datacenters in several time zones.
• Interfaced on regular basis with Oracle, Red Hat, IBM, Symantec, and Main-Tech Hardware Support teams.
• Worked closely with SAN Storage, NAS Storage, Project Managers, Engineering, Design and Build, Capacity Planning, and monitoring teams.
• Migrated 10 of our servers inventory from EMC DMX3 to VMAX storage frames.
• Documented server configurations, business contacts, windows of operations, and problem resolutions.
• Followed standardized ITIL Change Management procedures and implemented PCI Compliance required changes required to production.
• Managed Live Partition Mobility LPM with disable/enable script for effective hardware resource sharing and performance leverage
• Designed different AIX OS patch installation approaches to meet business requirements for minimum application outage and maximum server recoverability.
• Optimized server performance with different real/virtual CPU allocation, entitlement method, and SMT for different applications thread requirements
• Created and managed LPAR and DLPAR in VSCSI and NPIV mixed environment , dynamically allocated/removed hardware resources with a focus on troubleshooting server performance issues with IO, memory, and CPU.
• Collaborated with SAN team for storage provision and data replication/cloning using RDF/TimeFinder
• Managed data replication using SYMCLI with control-M on EMC VMAX/VNX for info lease application and DR requirement
• Managed server migrations from HPUX to AIX6.1 and HPUX to Linux 6/5 for Oracle, info lease , and SASSetup printers in AIX environment, included printers from different vendors and virtual printers such as printing to email as email body or as email attachment.
• Developed tools for automated server health status daily report and other administrative tasks deployment.

Environment:IBM AIX 4.3.3, 5.1, 5.2, RHEL 3.X, 4.X, Windows Server 2008, Oracle 8i, 9i, MY SQL, Apache 2.x, LPARS, VMware ESX Server, Veritas Volume Manager, NIM, Kick Start, HACMP, HMC, Samba, WebSphere. IBM P510, P670, P690, P550, P570, P590, HP DL320, HP DL330, HP DL 380s, EMC Symmetrix, Hitachi, IBM arrays.

Confidential

Title: UNIX/ Linux Administrator

Responsibilities:

• Installation, Configuration administration of UNIX/RED Hat Linux 8/ 9 at various client servers and service provider's servers.
• Installation and configuration ofFTP Serverand set up network connections and ConfiguredRAIDpartitions.
• InstalledRPM packages for all the above mentioned modules on servers at client site as well as the service provider's site.
• Experience on installation, configuration and maintenance of Squid proxy.
• Management of Servers using HMC/WebSM and create LPARS.
• Building Servers using NIM from mksysb or spot in AIX.
• Configure servers to use HTTP, DNS, NFS, NetBackup, Storage Disk configuration.
• Creating administering user accounts, and managing SUDO access.
• Managing file systems grow them on fly using LVM on AIX and UNIX/Linux.
• Diagnose and correct boot failures arising from boot loader, module, and file system errors on Linux.
• K Shell scripting of error logs, print queue checking, and disc space status via email routing.
• Experience in CRON tab entry experience.
• Mirror the root volume group in AIX and use it for redundancy.
• Performing O/S upgrades and Maintenance level upgrades.
• Use ILO/HMC for remote access of servers on Linux/AIX respectively.
• Troubleshoot hardware, software and Operating system related errors on Linux and AIX.
• Installed MultiPath software such as EMC Powerpath, HDLM.
• Configured Bonding in UNIX and Ether-channel in AIX.
• Performed system-monitoring tools like TOPAS, SAR,VMSTAT, IOSTAT to report systems usage and performance.
• Maintain troubleshoot Storage Disks from IBM, HITACHI, and EMC Disk arrays.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
• Configured cascading, mutual takeover and rotating modes of operation of the HACMP.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
• Co-ordinate with IBM and HP for faulty part replacement.

Environment:AIX 6.1/5.3/5.2, VIOS, LPAR, SAN IBM, Hitachi, EMC , DB2 UDB, HACMP-ED, HACMP, Oracle 10G, RAC, TSM, IBM HTTP Server, IBM BladeCenter, Apache Web Server, WebSphere Application Server, Shell Script

Confidential

Title: Systems Administrator

Responsibilities:

• Communicated, worked as team with application team, developers and DBA team to resolve various production and non-production related the issues.
• Worked on Sybase DBA specifications to configure file system, raw devices and tuning kernel parameter for Sybase Database on Linux and Solaris servers.
• Installed and administered various high end backup clients such as TSM and Veritas Netbackup.
• Installed and configured Oracle RAC packages, heart beat and ASM devices on Oracle RAC cluster for database servers.
• Installed, configured and supported two three node Veritas Cluster 5.x for application and database servers. Automated the start-up and stop scripts for resources failover, custom VCS agent for in-house legacy application, along with notification alert with Perl scripting.
• Installed and administered Veritas Volume Manager 5.0 Enterprise for Disk Management, Volume Management and Intelligent Storage Provisioning ISP.
• Installed various Packages, Kernel Patches and Tuned Kernel settings on 600 on Solaris and Linux servers. Used various automation tools like Rug and HPSA to minimize errors during upgrade process.
• OS build/rebuild, upgrade and migrations using Jumpstart and Kickstart installation process on Solaris and Linux servers.
• Participated on on-call support for Production servers running critical applications and database on rotation basis.
• Worked as a Build and Support Engineer in a 24x7 environment supporting highly critical applications running on UNIX and Linux servers.
• Responsible for the operations, monitoring the health of systems and administration of Production, Development and Test UNIX systems environments.
• Responsible for day to day administration like raising Problem Tickets for problem determination and resolution, users administration, Disk Storage Management, System Security, Managing File Growth System and Fine Tuning on a 24x7 environment.
• Used Opsware Configure Manager 7.4.3 to provision, configure, audit and remediate physical and virtual servers and applications.
• Followed corporate standard audits and ensured that the systems are maintained according to all best practices, security policies and compliance requirements using HP server Automation client HPSA .
• Administered, configured and supported E15K/E25K with 4 domains for a mission critical application support.
• Actively involved in server tuning and optimization to meet the application/database requirement for better overall performance.
• Directly worked with different vendors for hardware replacement and coordinated with application teams regarding Cut-Off Window for minimal impact.

Environment:Linux RHEL 4.x 5.x , Solaris 10, Oracle RAC 11/10g, VERITAS Cluster Server VCS , VERITAS Volume Manager VVM , SUN Servers, SUN Fires, Fuji, HP hardware, CMC, WebSphere Application Server 5.x/6.0/6.1, LDOM'S F5 Load balancers, Net Apps, LDAP, EMC Storage SAN, VMWare servers, Sybase and Oracle Database.

Confidential

Title: UNIX/LINUX Systems Administrator

Responsibilities:

• Administration of RHEL 4, 5 and Solaris 9, 10 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• Managed and upgraded UNIX's server services such as Bind DNS, Postfix, Apache web server, Tomcat, MYSQL.
• Installed and Configured Oracle ASR on total Solaris 10 Environment.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers across ESX hosts.
• Jumpstart Solaris servers, custom configure, install packages, patches, and harden.
• Creating LDOMs, installing Solaris, creating volumes, installing packages.
• Created Zetabyte file system ZFS in Solaris 10. Creating Zones, zpools and adding resources like network, filesystems.
• Installed Opsware agents, created packages, policies, scheduled jobs on Opsware.
• Installed Solaris 10 using jumpstart, flar image on both physcial servers and LDOMs.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Troubleshooting tickets, which includes storage, network, system related issues and logging RCA using ITG service.
• Worked on Veritas Netbackup 6.5 which includes installation, creating policies, configuration and upgrading servers.
• Installing, configuring, custom building Oracle10g, Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Worked and performed data-center operations including rack mounting, cabling.
• Installing, configuring, administering Veritas Cluster Server 5.0, creating service groups, adding resources, enabling attributes, testing fail-over.
• Worked on creating disk groups, volumes, deporting, importing disk groups using veritas volume manager 5.1.

Environment: Red-Hat Linux Enterprise servers HP Proliant DL,ML Series, IBM p series,x series, Dell Poweredge Servers R610, R710 , Solaris 10, ASR, Opsware, VMWare, SAN EMC, Hitachi , NAS Netapp , BladeLogic, Veritas Volume Manager 4.1, Sun Enterprise Server E2900, E4500, E6900 .

Confidential

Title: Unix Administrator

Responsibilities:

• Configured Kickstart files, installed RPMs, Packages and Installing Patches.
• Created Users and NFS sharing Samba sharing, EMC Agents Deployment on the Servers.
• Installed Oracle 9i on Linux and configuration. Worked closely with Oracle DBAs database configurations.
• Responsible for Monitoring Tools deployment like nagios and Script Development for any ongoing projects. .
• Configured storage using Logical Volume Manager LVM . Extending Volumes with LVM. Implemented RAID configuration for redundancy.
• Worked on Brocade SAN Switch and EMC Symmetrix on SAN and NAS respectively.
• Used crontabfor automation.
• Creating UNIX and PERL scripts for automated data backup, status of the storage.
• Installed and Configured SSH for Remote and Secured Connection including passwordless connections.
• Setting up labs from scratch, testing hardware, installing and configuring various hardware devices like printers, scanners, modems, network and communication devices.
• Configuration of DHCP, DNS, NFS and automounter.
• Fine tuning of systems using performance monitoring tools, i.e. a couple of servers need additional memory due to constant page in, page out, values are non-zeros vmstat .
• Downloaded and installed MS SQL, Oracle 10g. Designed and created a database structure and provided user access to the database. Helped DBAs to tune database using OS level parameters like Semaphores and Shared memory Segments.
• Server Builds for VMware section and Normal Build of AS4 /AS3 /AS 2.1 EL 3 /4.

Environment: Red Hat Linux 4.x/5.x, Solaris 8/9/10, Veritas Foundation Suite, HP UX, IBM AIX, Veritas Cluster, Oracle ASM, WebSphere.

Confidential

Title: Unix Administrator

Responsibilities:

• Automated installation of Linux servers using Kickstart and Installation of Solaris using Flash, live upgrades and Jumpstart Servers
• Creating and managing file systems, Creating and managing Logical volumes in Linux and VERITAS Volume manager4.xin Solaris Linux.
• Installation of patches and packages using RPM and YUM in Red hat Linux and Suse Linux and also using patchadd and pkgadd in Solaris 10 Operating System.
• Usage of Service Management Facility for enabling, disabling and also troubleshooting services in maintenance mode.
• Experience with configuring and Installing Zones for running applications in different zones in Solaris 10.
• SAN and iSCSI disk Configuration in Linux.
• Usage of SAN topology, fiber channel and Multipathing.
• Modified Kernel parameters to improve the server performance in both Solaris and Linux.
• Provided Statistics on Hard Disk Usage.
• Implemented and administered High Availability Cluster RedHat Cluster Suite / Veritas Cluster , failover scenarios, and load balance.

Environment: RedHat Linux 3/4, Solaris 9,Veritas volume manager, SSH