SUMMARY

• Above 7 years of IT experience in System Administration under heterogeneous environment of Redhat Linux 4.x/5.x/6.x/7.x, CentOS6, SuSE Linux 10/11, Sun Solaris (8/9/10), HP - UX (11.x), AIX (5.x), and Windows 2003/2008.
• Expertise in Installation, Configuration and file system management through VERITAS Volume Manager, VERITAS File System, Solstice Disk Suite and Logical volume Manager (LVM) with multiple RAID Levels.
• Extensively worked on administering NIS, NIS+, NFS, DNS, DHCP, and Mail Servers.
• Experience with file/disk encryption technology/products on servers, worked on Vormetric Data Security tools and File System Encryption.
• Extensive experience on patching up Unix/Linux servers & decommissioning unwanted old servers using virtualization techniques to make the client environment more reliable & profitable.
• Experiences in Server build using Kick start, Jumpstart.
• Extensively involved configuring & administering SAN Devices & Other Storage solutions like Power Path, Native mulitpathing & Veritas DMP.
• Extensive experience in UNIX performance monitoring and kernel tuning and Load balancing (F5 Load Balancer) to ensure stable performance.
• Proficiency in VMW is Installation and monitoring Virtual environments with ESX 4.xServers and Virtual Center.
• Experience in installing, configuring and monitoring VERITAS Cluster Server (VCS), Redhat Cluster Server, Sun Cluster Server and HP Service Guard in High Availability Environment.
• Experience in using puppet and chef for OS configuration and automation.
• Extensive experience in configuring Global File System (GFS) and Zettabyte File System (ZFS).
• Worked on installing and configuring VMware/Esx Servers for virtualizations.
• Familiar knowledge in the AWS services
• Extensive experience in KornShell and Perl Scripting, SQL, and knowledge on Python.
• Devise strategies for Disaster Recovery Management (DR), including planning and designing servers for back up, recovery and archival of server / database information.
• Widely worked on Disk and File system management through Logical Volume Manager (LVM) on HP-UX, Linux and Solaris Volume Manager (SVM) n Solaris.
• Advance level of experience in researching OS Issues, applying patches and opening the Vendor Tickets like Remedy, RedBox.
• Experience in a large 24x7 environment.
• Experience with complex Virtualized system
• Experience with Veritas storage foundation products.
• Strong working knowledge of Routers and Switches, VLAN, TCP/IP, VPN, OSI model, Firewall (checkpoint), VOIP and Sarbanes Oxley compliance (SOX).
• Worked on Citrix XenApp and knowledge of Citrix Web Interface.
• Experience in shell scripting and programming .
• Technical professional with management skills, excellent business understanding and strong communication skills.

TECHNICAL SKILLS

Operating System: Red Hat Linux 4/5/6/7, SuSE 10/11,Ubuntu 6.x/7.x, Solaris 11/10/9/8, HP-UX (11.x), IBM AIX (5.x, 6.x) &Windows 2000/2003/2008

Hardware: Sun SPARC T5-2/M4000/M3000, Sun X3-2L, X4440, X4150, Sun Enterprise E 5000/5500/6500, Sun Fire 3800/4800/6800, E10K/15 Series server, TSeries, MSeries Servers, HP-9000, rx8640, rp7420, rp8420 IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers.

Third Party Tools: Veritas Volume Manager, Logical Volume Manager, RAID, Redhat Cluster, Veritas Cluster, Sun Cluster, HC Service Guard, VMware ESX.

Web Application Server: Apache, WebSphere, Weblogic, Tomcat.

Network/Naming Services: NIS, NFS,DNS, DHCP.

Storage: SAN, NAS, DAS EMC Storage, SAS, HP and IBM Storage, HDS.

Languages: Unix Shell Scripting, Perl Scripting, HTML.

PROFESSIONAL EXPERIENCE

Confidential, Auburn Hills, MI

Linux Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 4/5/6, HP-UX 11i, Solaris 8/9/10, and IBM AIX operating systems.
• Provided system supportfor2000+ Linux/Unix Servers including routine maintenance, patching, and system backups and restores, and software and hardware upgrades.
• Worked on building new SUSE & Redhat Linux servers, supported lease replacements and implementing system patches using the HP Server Automation tool.
• Experience with VMware Virtualization using ESX hypervisor of Vsphere 5.1.
• Configuration, implementation and administration of Clustered servers on SUSE Linux environment.
• Experienced in system administration, System planning, co-ordination and group level and user level lmanagement.
• Expertise in creating and managing Logical Volumes in Linux.
• Experience on backup and recovery software like Net backup on Linux environment.
• Systems and network Planning and Administration.
• Supported production systems 24 x 7 on a rotational basis.
• Understanding of Microsoft System Center: Creating and Implemented Changes on servers and documented the change in the Microsoft System Center for future reference.
• Resolved Security Access Requests via Peregrine Service center to provide the requested User access related requests.
• Expertise in Installation, Configuration of Package and Patch Management.
• Handling and generating tickets via the BMC Remedy ticketing tool.
• Experience with HP Gen 8 blade servers and rack mounted servers.
• Coordinated Hardware configuration, installation and management as well as. Configuration of ILOs and Console connections for HP Gen 8 Blade and Rack mounted servers.
• Expertise in Performance Monitoring and Performance Tuning using Top, prstat, sar, vmstat, ps, iostat etc.
• Creating new file system, managing & checking data consistency of the file system.
• Created new file systems using Raw Device Mapped lun’s, Virtual Disks and SAN storage as per required.
• Successfully Migrated virtual machines from legacy Virtual environment Vmware Vsphere 4.1 to new Vmware Vsphere 5.1.
• Communicated and Coordinated with customers internal/external for resolving issues for reducing downtime.
• Experience in Disaster Recovery and Planning.
• Problem determination, Security, Shell Scripting.
• Supported after-hours to meet deadlines as well as for operational support as required.
• Proven experience in end-to-end problem determination/troubleshooting system issues.
• Thorough understanding of networks and storage systems.

ENVIRONMENT: Solaris 9/10/11, Redhat Linux 4/5/6/7, HP-UX 11i, AIX, Sun Enterprise Servers TSeries, MSeries and Fijustu x86 servers, HP 9000K, L, N class Server, HP & Dell blade servers, IBM RS/6000, p Series servers, VMware ESXi Server, Oracle.

Confidential, king of Prussia, PA

Unix/Linux Administrator

Responsibilities:

• Installation, configuration and upgrade of Solaris 8/9/10, Redhat Linux 4/5/6, HP-UX 11i and IBM AIX operating systems.
• Configured and installed Solaris, HP-UX and Redhat Linux Servers using jumpstart and kick start.
• Implementing file sharing on the network by configuring NFS on the system to share essential resources.
• Worked on building and supporting Solaris8, 9 & 10 on Sun Midrange platforms and IBM AIX Midrange platforms.
• Worked on performance tuning in Solaris, Linux & HP-UX.
• Performed package and patching management and debugging in all flavors of Unix& Linux.
• Experience in using puppet and chef for OS configuration and automation.
• Expertise in capacity planning and migrations in HP-UX.
• Well knowledge in documentation of architectural design and build engineering Documents and SOWs.
• Worked on installation and monitoring of VMW are virtual environments with ESX 4.x servers and Virtual Center.
• Troubleshooting and analysis of hardware and failures for various Solaris servers (Core dump and log file analysis).
• Built high-end servers, creating and loading images on Solaris, HP-UX and Linux servers using System Imager tool.
• Planned and implemented migrations from lower end to higher end in OS level and Hardware level in Solaris, HP-UX and Linux servers.
• Configured and managed Redhat satellite Network server, performing package management tasks and errata updates.
• RPM package administration using RPM Build.
• Performed Data Backup and Recovery using Veritas Net Backup (VNB).
• Update the systems using Redhat Enterprise Network (RHN), Managing and monitoring through RHN.
• Knowledge of DAS, NAS and SAN concepts and technology. Also got knowledge in HA, Clustering, LAN.
• Responsible for setting up a disaster recovery plan for the servers, which includes in development of programs for synchronized backups.
• Worked on installing and configuring VMware/Esx Servers for virtualizations.
• Performed documentation of architectural design and build engineering Documents and SOWs.
• Knowledge and experience on Kerberos setup.
• Configured and maintained Network Multipathing in Solaris and Linux.

Environment: Solaris 9/10, Redhat Linux 4/5/6, HP-UX 11i, AIX, Sun Enterprise Servers E5500/E4500, Sun Fire V 1280/480/440, HP 9000K, L, N class Server, HP & Dell blade servers, IBM RS/6000, p Series servers, VMware ESX Server, Oracle.

Confidential, Alpharetta, GA

Linux /UNIX System Administrator

Responsibilities:

• Installation, configuration and upgrade of Solaris 9/10, Redhat Linux 3/4/5, HP-UX 11i, AIX 5.3 operating systems.
• Configured and installed Solaris, HP-UX and Redhat Linux Servers using jumpstart, Ignite, and Kick start.
• Worked on Creating Local zones and Branded zones on Solaris Containers global zone and migration of the applications on to these zones from the physical servers.
• Experience in installing, configuring and monitoring VERITAS Cluster Server (VCS), Service Guard and Redhat Cluster ServerinHigh Availability Environment.
• Applied recommended OS Patches, Kernel upgrades using Solaris Live Upgrade on Production and development 2servers.
• Worked on Live Upgrade, migrating from UFS root file system to ZFS file root system usinglucreate, luupgrade, luactivate.
• Performing periodic HBA (LPFC, QLC) firmware and driver upgrades for proper and smooth operation of Tivoli Storage Manager(TSM).
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.
• Involved in Configuration of Control domain on T-series servers and creation of Guest LDOMs on them for each different applications.
• Create automated Jumpstart environment for Solaris standard builds for WEB, APP and DB servers.
• Supported Oracle RAC (Real Application Cluster) Servers running on Linux with GFS and Solaris with SFRAC.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using PS, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Tuning of TCP/IP, LOM, and System Controller(SC) in cluster environment.
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Developed technical documents like handbooks, document installation configurations, and proposed resolutions for support processes.
• Responsible for Daily Backup maintenance through Tivoli Storage Management(TSM).
• Provide technical assistance to the application development area and co-workers about system analysis, design and programming.
• Communicate with the user community and co-workers to assess needs, resolve problems, and provide technical assistance where necessary relating to UNIX administration functions, and software running on UNIX platforms such as Apache, WebSphere and Oracle9iAS and COTS third party software.
• Assist in the creation of policies and procedures that will be sent through a formal clearance process.

Environment: RHEL 5.x/4.x, Solaris 8/9/10,HP DL580-DL380 G3,G4,G5,Dell Power Edge, IBM blade servers, Websphere 5.x/6.x, Apache 1.2/1.3/2.x, iPlanet, Oracle 11g/10g/9i, Logical Volume Manager, Veritas net backup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Power path), VM ESX 3.x/2.x.

Confidential 

Unix/Linux Systems Administrator

Responsibilities:

• Installation, Configuration & Upgrade of Redhat/SuSE Linux, Solaris and Hp-UX operating system.
• Configuring NFS, NIS, NIS+, DNS and LDAP.
• Worked on Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Excellent in Configuring and Administering NFS, SMTP, DHCP, samba in heterogeneous environment.
• Performed automated installations of Operating System using Kick start and Jumpstart for Linux and Solaris.
• Configured and used yum repository for packages and patches installation in Linux environment.
• Worked on Installation and configuration of VMW are ESX servers.
• Installation and configuration of Logical Volume Manager, Veritas Volume Manager, Veritas File System, Veritas Cluster Server.
• Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.
• Expertise in setting up System Imager software for automated installation, software distribution, configuration changes and operating system updates to a network of Linux Machines.
• Experience in Redhat Cluster Suite and Global File system, Redhat Network Satellite Server.
• Troubleshooting and building high end servers and midrange servers.
• Performed automated installations of Operating System using Jumpstart for Solaris, kickstart for Linux and Ignite for HP-UX.

Environment: Solaris 9/8, Linux RHEL 5, SuSE Linux 10.x, Sun Fire 6800/E6500 Server, E10K/25K, T2000/T5000, M5000, HP L/N/RP series,IBM Power 570,p5 505 Express servers,Ubuntu 6.x/7.x, Apache, SAN EMC/HP/Hitachi, Veritas Volume Manager, VCS, Veritas Netbackup.