SUMMARY

• Solution - Oriented, Competent and Committed UNIX/Linux Administrator with 8 years of experience in IT Consulting
• Skilled in Planning, Configuration, Administration, and Maintenance of UNIX (Solaris &Linux) and Virtualization using VMWare ESX Systems
• Around 7 Years of Experience in UNIX/LINUX Systems and Network administration for Sun Solaris 8/9/10/11, Linux RedHat (RHEL 4, 5, 6), CentOS, SUSE, Debian, OEL & HP-UX 10.x, 11.x.
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of UNIX/LINUX
• Volume and Filesystem management using Veritas Volume Manager (VxVM) and Veritas Filesystem (Veritas Storage Foundation).
• Experience in data center operations.
• Extensive experience in installation, configuration, maintenance, design, development, implementation, upgrading and support on UNIX/LINUX environment.
• Worked on HP Blades server like C6000, C7000 & IBM H series Blade centers..
• Experienced in working with Tivoli Storage Management and Veritas Net Backup.
• Adding physical volume, migrating physical volume, importing and exporting volume group, paging space and Mirroring using LVM and Veritas Volume Manager.
• Experience in DNS, NIS, NFS, LDAP, Send mail, ftp, remote access, security management, and system troubleshooting skills.
• Experience in migrations and decommissioning of the systems.
• Managing cron jobs, batch processing and job scheduling.
• Performed system backup local systems and Veritas Net Backup for enterprise wide backup and recovery and to centrally manage storage resources through a single console.
• Experienced in installation, configuration and maintenance of EMC Power Path for load balancing and MPIO for redundancy in data paths.
• Experience in installing, configuring and trouble-Shooting web servers like IBM HTTP Web Server, Apache Web Server, Websphere Application Servers, and Samba Server on Linux (Redhat & CentOS).
• Experience in working on slow servers and increasing performance through performance monitoring tools like vmstat, iostat, sar, nmon.
• Excellent knowledge in shell scripts, KORN and BASH.
• Experience working in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment.
• Experience in working with Remedy, Assyst and Tivoli for incident and change management system.
• Providing 24X7 on-calls production and customer support including trouble shooting problems.
• Excellent documentation skills, client relation skills, team worker, ability to quickly adopt and work under minimal supervision.

TECHNICAL SKILLS

Languages: C, C++, Java, Shell Scripting, SQL, PL/SQL, HTML, XML.

Operating Systems: Linux (Redaht, CenrOS, Ubuntu),Sun Solaris 8, 9, 10, MS Windows 98/2000/NT/XP/2008.

Hardware: IBM RS/6000, p795/780, p670/680/690 series, p595, p570, JS12, EMC Symmetrix, CLARiiON and EMC Celerra.

Database: Oracle 9i/8i/10/11g, IBM DB2

Networking/Protocol: TCP/IP, HTTP/HTTPS, RMI/IIOP, IBM OSE, WAP(WTP/WSP), NFS, DNS, DHCP, Cisco Routers and LAN.

Other Skills: LVM, NIM, HMC, TSM and Veritas Net Backups. VERITAS Volume Manager 5.0/5.1, VERITAS File System 3.x/4.x/5.x, Micro Partitioning, NPAV, Active Memory Sharing, Oracle RAC, Active Directory, Citrix management console, NMIS.

PROFESSIONAL EXPERIENCE

Confidential, FL

Senior Solaris/Linux Administrator

Responsibilities:

• Administration of RHEL 4, 5 and Solaris 9, 10 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• Installed and Configured Oracle on Solaris 9/10 and Redhat Linux 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, 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 & file systems.
• Involved in SAN migrations at host level using LVM mirroring and SVM Mirroring.
• Creating LDOMs, installing Solaris, creating volumes, installing packages.
• Solaris Live Upgrade from Solaris 8, 9 and old update from Solaris 10 newer update version across the whole environment.
• Creating, cloning Linux Virtual Machines, templates using VMware 4/5 and migrating servers between ESX hosts.
• Installing Redhat Linux using kick start and applying security policies for hardening the server based on the company's policies.
• Installed Solaris Software using Jumpstart/Flash Archives and involved in configuring/setup LDOM. worked extensively on VERITAS Operations Manager (VOM)
• Lockdown the local accounts to secure the environment using NIS.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance and Secure Shell (SSH) implementation.
• 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 BMC Remedy.
• Custom building 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.
• Worked on creating disk groups, volumes, deporting, importing disk groups using VERITAS volume manager.

Environment:, Command line, Current working directory, root directory, executed command.

Confidential

Responsibilities:

• Expertise in installation, configuration and administration of Windows 2000/2003/2008 servers, Active Directory and exchange server.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving
• Administration of RHEL 5, 6 and Solaris 9, 10 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• 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, 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.
• 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.
• Adding patches to keep the servers updated against bugs present in the operating system as well as other applications like VERITAS Storage Foundation, Web Sphere and Oracle.
• Implemented and administered VMware ESX 3.5, 4.x for running the Windows 2003/2008 Servers on development and test servers.
• Worked on creating disk groups, volumes, deporting, importing disk groups using veritas volume manager 5.1.

Environment: Red-Hat Linux Enterprise servers 4/5/6, (HP Proliant DL, ML Series, IBM p series, x series, Dell Poweredge Servers R610, R710), Solaris 8/9/10/11, ASR, Opsware, VMWare, SAN(EMC, Hitachi), NAS (Netapp), BladeLogic, Veritas Volume Manager 4.1, Sun Enterprise Server M4000, M5000, T2k, T3k.

Confidential, Norcross, GA

Sr UNIX Administrator

Responsibilities:

• Working with a SAN environment which included working with SAN teams and the environment included Brocade Silkworm 4900 switches, EMC Symmetrix DMX 4 and Sun StorEdge 9980
• Installing and upgrading Solaris 8, 9, 10, Redhat EL 3, 4.x and Suse EL Server 10 sp1, sp2 operating systems.
• Involved in building Linux & Solaris servers using Jumpstart server on various SPARC servers and Kickstart Redhat EL 3, 4.x, 5.x on Various HP & Dell HW.
• Creating resource pools, zones and containers on Solaris 10 and v490s, v890s to optimize and consolidate the use of the hardware.
• Worked on LDOMs on Sun T2000 servers.
• Worked on LAMP for configuring Mantis Bug tracking tool and Wordpress blog software.
• Installing Veritas Volume Manager 4.1. Implementing RAID and creating Disk Groups, Volume and Logical volumes using VxVM on Solaris to manage the storage resources and creating, resizing and managing volumes and used LVM on Linux to create Volumes on the Volume Groups, Volumes and file systems.
• Mirroring the root disks using Sun Volume Manager.
• Installed and Configured High Availability, Disaster Recovery systems using Veritas Cluster Server 4.1 on a two node cluster for NFS and MQSeries.
• Configuring, administering and troubleshooting of NFS, NIS (master, slave and client) and DNS (Bind 8.2.x and 8.3.x) in multi-platform networks that included IBMA IX & Linux.
• Updating patches to keep the Linux and Solaris servers updated against bugs present in the operating system using patch administration commands like yum, rpm, patchadd, showrev & up2date etc.
• User, Group management and security policy management for the all servers including Windows and UNIX using RBAC, sudo etc.
• Installing, configuring and troubleshooting Sun Java System Web Server 6.x, 7 and Apache 2.2.x web server on Redhat Linux.
• Responsible for Installation, configuration and administration of middleware like Web Logic 9.0, JBoss 3.2, CA Web Access Manager (WAM) and MQ Series v 7.0 etc.
• Performance Analysis of resources like CPU, Memory, Disk and Swap from command line using commands like prstat, vmstat, sar, iostat, swap etc. and tuning of the kernel parameters for the better performance of the operating system and TCP.
• Hardening the servers as per the compliance norms by analyzing the availability of the services that are needed on the servers based on the functionality and disabling the services which are not needed. Installation and configuration of TCP wrappers and constant security patch updates as a part of the exercise to harden the servers.
• Was involved in creation of a Project plan and the implementation of a backup solution using Veritas NetBackup 5 and StorageTek L700 tape libraries.
• Deployment of System 5 packages on production servers.
• Modifying/ Writing scripts for day-to-day job and administration.
• Creating test environment and assisting in Change control management.
• Troubleshooting day-to-day server related issues and problems.

Environment: Redhat 8, 9, AS 2.1, EL 3, 4.x, SLES 10 sp1, sp2, Veritas Volume Manager 4.1, Veritas Cluster Server 4.1, Veritas Netbackup 5, BMC Patrol for Unix, Apache 2.2.x, Sun Java System Web Server 6.x, 7, WebLogic 8.x, 9.0, JBoss 3.2, MQ Series 7.0, CA WAM, System 5 Packaging, Perl, Oracle 10g, v880, v490, v890, 6800, x2100, x4200, SunFire T2000, M5000, M 8000, Brocade Silkworm 4900 switches, EMC Symmetrix DMX 4, Sun StorEdge 9980, StorageTek L700

Confidential, Campbell, CA

UNIX/Linux Administrator

Responsibilities:

• Designing System Requirements, Designing Storage requirements, Configuration Management/Change control/Release management.
• Installing Veritas Volume Manager 4.0 and configuring Disk Groups, Volume Groups and Logical volumes to manage the storage resources.
• Creating, Resizing and managing online JFS File system for users upon user request using Veritas Volume manager and LVM.
• Patch and Package administration to keep the servers updated with the patches and that implementing packages developed for deployment.
• Installed and Configured SSH for secured access on Solaris and Redhat Linux Systems.
• Installing and Configuring HP-OMNIBACK 4.10 for Backup of more than 30 Servers.
• Installing, configuring various software applications and packages like Apache 1.3.18, WebLogic 7.x, Oracle 9i etc.
• Implementing NIS and DNS naming services and administering the public DNS servers.
• Monitoring System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Troubleshooting and analysis of hardware and software failures for various Linux and Solaris servers (core dump and log file analysis)
• Tuning the Kernel parameters for the better performance of applications like Oracle, WebLogic etc.
• Modifying/ Writing scripts using sh, ksh and bash for day-to-day administration.
• Creating, Deleting and managing user database and their respective directories.
• Performing backups of Production, DIT and Development servers and applying required patches.
• Setting up cron jobs for the user to deploy scripts on production servers.
• Implementing RAID technologies and SAN solutions. Was involved in the configuration of a SAN with McData Switches and Hitachi Data Systems (HDS).
• Troubleshooting day-to-day server related issues and problems in terms of hardware, operating system, applications and network.
• Worked on User administration setup, maintaining account, Monitor system performance.
• Environment:, Command line, Current working directory, root directory, executed command.
• Extensive user and group management through admin tool.
• Strong scripting knowledge to perform different administration tasks.
• Experience in Shell scripting (ksh, bash) to automate system administration jobs
• Mentoring junior team members to support production web environment.

Environment: Solaris 7, 8, 9, Redhat Linux 4/5, Windows 2000, NFS, LVM, Veritas Volume Manager 4.0, HP-Omni back, DHCP, DNS, SMTP, SSH2, Apache 2.0, System 5 Packaging, Perl, Oracle 9i, 280R, E5500, 6500, K580

Confidential

UNIX / Linux Administrator

Responsibilities:

• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands. Maintained availability, increased capacity & performance of production machines by upgrading their hardware (disks, CPU, memory, IO board, power cooling unit, motherboard etc) & firmware.
• Rack mounted HP DL systems, installed and configured Redhat Linux and applied maintenance levels.
• Troubleshooting of all kind of OS related and hardware related issues on the Linux servers
• Performed process automation, scheduling of processes using CRON jobs.
• Installed recommended patches on Linux and Solaris servers.
• Designed & Implemented System Security administration policies. Systems security administration policies include: User ID/Group ID management, Password policies, password aging for Redhat Linux Users.
• Capacity planning of P Series machines with IBM Balanced Spread Sheets.
• Managed file permissions & ownership for important directories & files.
• Implemented DNS, NFS, NIS, Auto mount networking services.
• Installed Redhat Linux 4/5 on HP, Dell & IBM x86 standard image CDs and Kickstart installation method.
• Assisted backup team for defining backup policies.

Confidential

Linux Administrator

Responsibilities:

• Responsible for Remote Linux Support with more than 600 servers.
• Provided 24x7 supports on shift rotation basis.
• Configured Redhat Linux servers for production, staging and test environments running Database and Middleware applications.
• Managing users like creating, deleting and granting proper privileges and managing system security.
• Resolving user issues, problems and providing the system accessibility in a 24x 7environment.
• Installation and configuration of VM’s with Redhat LINUX servers running on HP & Dell HW.
• Installed and configured SSH server on Redhat/CentOS Linux environments.
• Extensively used LVM, created VGs, LVs, and disk management.
• Installation and upgrade of Open SSH 4.3p1 on Redhat Linux, Open SSH 4.1p1 on HP & Dell servers.
• Setup and configured network TCP/IP on Redhat Linux including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on Redhat Linux Servers.
• Installing OS on NIM clients using NIM Server.
• Wrote shell scripts for automated installations to extract logs.

Environment: Linux (Red hat & CentOS), Windows (NT/2000), Kickstart and scripting.