SUMMARY

• Around 7 years of professional experience as a System Administrator with experience in operating systems that include, Linux (RHEL) 6/5/4, Solaris 10/9/8, HP UX 10.2/11i and Windows 2003/2008 platforms.
• Experience in building Servers using Kickstart for Linux, Jumpstart and Flash Archive for Solaris, Ignite for HP - UX and exposure to NIM for AIX installation
• Experience in installing patches and packages in Linux/Unix/Windows environment.
• Experience in implementing virtualization using VMware ESXi and Virtual Center.
• Experience in ITIL Process and use of CCB (Change Control Board) for production changes.
• Used variety of volume managers - LVM, SVM, Veritas Volume Manager, ZFS, Oracle ASM (RAC and non-RAC).
• Extensive hands on Implementation, Administration and Troubleshooting experience on Sun Solaris, Linux, UNIX and SAN EMC environments.
• Proficient with configuring and maintaining NFS, DNS, NIS/NIS+, DHCP, SMTP, and Networking with TCP/IP.
• Managing storage on EMC clarion and DMX.
• Experience with SMIT, LVM (Logical Volume Manager), Mirroring, User & System Resource Management, Paging Space Management and Job Scheduling.
• Expertise in configuring Bonding in Linux and (IP network Multi-Pathing) in Solaris.
• Experience in installation, configuration and administration of Veritas Cluster Server, Redhat cluster server and HP MC service guard.
• Planning, implementation, replacements and recommending for required hardware for SAN/NAS (Storage Area Network) and its capacity.
• Experience in Global File System (GFS) for Linux configuring Zettabyte File System (ZFS) pools, file systems, snapshots and clones in Solaris
• Extensively worked on Solaris 10 Container technology, responsible for creating, configuring and maintaining ZONES and installing applications on individual zones (global and local zones).
• Experience in Shell scripting using sh, ksh, bash and PERL.
• Experience in Performance Monitoring of Kernel parameters, Memory, Disks, Network.
• Experience on working Oracle Real Application Cluster (RAC) database, provide available database solutions and support to MS SQL Server and DB2 teams.
• Responsible for 24x7 production support.
• Analytical, problem solving, communication, inter-personal skills, good work ethic and willing to learn

TECHNICAL SKILLS

Operating Systems: Solaris 8, 9, 10, HP-UX 10.0, 11.0, 11.11i and Red Hat Linux (3/4/5/6).

Server Hardware: SUN FIRE V880, V240, V280R, V440, HP-9000 K, L, N series, rp 3440, rp 7440/rpHP Proliant DL380/DL580, Cisco UCS B Series (B200M1/M2, B440 M1/M2) and C Series Rack Mount.

Storage Systems Software: Solstice Disk Suite (SVM), Veritas Volume Manager (VxVM) and LVM.

Cluster Solutions: Veritas Cluster Server, Redhat Cluster Server and HP Service Guard

Data base: Oracle 10g/11g.

Misc. Apps: Apache/Tomcat.

Storage Hardware: EMC storages. (Symmetrix and Clarion), NetApp SAN and NAS.

Services: NFS, LDAP, DHCP, DNS, SSH & SendMail.

Scripting language: Very good Understanding & trouble shooting of UNIX shell Scripts.

Ticketing Tools: Remedy and Service Centre

Protocols: TCP/IP, UDP, SMTP, TELNET, HTTP

PROFESSIONAL EXPERIENCE

Confidential

Operating System Engineer - Unix

Responsibilities:

• Installing configuring and managing different layered products and applications (Anthill, OVPA by HP, CertMan, HP-SA, Avamar, Columbo, HIDS/SCSP, VAS, VM-Tools, Opsware, Netbackup)
• Patching Sun Solaris and Red Hat Linux servers with both single or multiple levels of patch bundles
• Creating and configuring different types of file systems by using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM), and Zettabyte File System (ZFS)
• Installing, Configuring and Managing Veritas Cluster Server.
• Maintaining different types of file systems (VxFS, NFS, ZFS)
• Building new database and application servers according to Confidential standards
• Setting up SSH and password-less connections
• Examining server health state and troubleshooting OS performance issues
• Develop small scale ad-hoc scripts using shell scripting
• Train new members in specific technologies and develop technical documents/instructions
• Using HP Service Activator (HP-SA) to automate the processes inherent in the creation and activation of new telecommunications services
• Installing, updating, and troubleshooting centralized management of user authentication and authorization products, such as Vintela Authentication Services (VAS), and BoKS AccessControl
• Troubleshooting and configuring Sendmail functionalities (changing relay host, masquerading, etc.)
• Using FTP, SFTP, and SCP protocols for data transmission
• Working with external resources (Oracle, Symantec, Red Hat, HP) to resolve issues that need vendor’s assistance
• Installing, updating and utilizing backup tools to retrieve archived data (Netbackup and Legato)
• Running security audits and remediating servers before they go live to match industry standards
• Expanding space available on servers by adding and configuring new LUN disks
• Adding Oracle ASM storage to servers (RAC and non RAC)
• User management (adding users to the server, creating home directories, unlocking locked accounts, etc.)
• Adding startup scripts to different run levels
• Splitting and mirroring root mirror disks
• Adding new Swap space
• Perform analytics of HBAs and WWNs for storage team prior to new LUNs addition
• Setting up and managing multipaths
• Adding virtual IPs to servers
• Server Decommission
• Attending team meetings and inter-team meetings on behalf of the team

Confidential, Pittsburgh, PA

Sr. UNIX Administrator

Responsibilities:

• Installation, Configuration & Upgrade of Linux, Solaris, AIX, HP-UX and Windows operating system.
• Installation of Patches and Packages.
• Configuring NFS, NIS, NIS+, DNS, and disk space management on RHEL (Linux) servers.
• Installing & configuring Solaris 8, 9, 10 using Jumpstart, HP ITANIUM and PA RISC boxes using IGNITE
• Worked on Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Extensive working experience in process scheduling, disk and file system I/O, kernel internals, TCP/IP networking.
• Implemented SUDO, SSH and other security tools and security compliance
• Involved in installation, configuration and administration of Apache Web server, BEA Web Logic and IBM Web sphere and Samba Server in UNIX, Linux and Windows environment.
• Installation and configuration of Veritas Volume Manager, Veritas File System.
• Extensive use of volume management tool using Logical Volume Manager to create disk groups
• Installation, Configuration and Administration of High Availability using SUN cluster and Veritas Cluster Servers for failover and redundancy purpose.
• Implemented in Red Hat Cluster Suite and Global File system, Red Hat Network Satellite Server.
• Checking the status and property information of hardware components during regular maintenance using hp online diagnostic utilities SFM (system fault management), STM (support tool manager).
• Created/used LDOM in Solaris 10 and installed multiple OS.
• Creating metadevices, soft partitions, mirroring the devices and metasets.
• Space allocation to the metadevices, detaching and clearing the devices if not in use.
• Performed automated installations of Operating System using Jumpstart for Solaris and kick start for Linux.
• Worked on Disaster Recovery site configuration in testing.
• Used putty and humming bird to connect to remote servers.
• Experience in Load Balance workload evenly across two or more servers, network links, CPUs, hard drives, or other resources, in order to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload.
• Configured new service group and resources for new application in Veritas Cluster Servers.
• Worked on server consolidation and migration from one data center to another data centers.
• Extensively worked in data and database migration from older machine to latest configurations.
• Configured IPMP, NIC Bonding and Storage Multipathing
• Troubleshooting various problems, logging call with vendors.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements.
• Used Drupal 6/ 7 for user access control, security and access statistics.
• Worked on Joomla 1.6.0 as virtual machine for ACL.
• Preparation of performance acceptance criteria drafts for newer applications.
• Implemented Security Hardening per company policy using Solaris 10 features.
• Installed and configured VMware ESXi server created VMs and deployed Linux and Windows OS on VMware based VMs.
• Worked on TRACE Action Request system for ticketing and tracking asset records.
• Involved in disaster recovery testing every quarter.
• Used TOAD for SQL Queries.
• Supported 24/7 high availability production servers
• Participation in change control activities, Involved in Memory sizing of different applications.
• Complete periodic checks of production and development systems, CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Verify successful completion of daily incremental and database backups, following developed procedures

Confidential, Bentonville, AR

UNIX Administrator

Responsibilities:

• Installed, configured and managed Solaris 8, 9 and 10 on Sun Enterprise systems (x86 and SPARC), Administered, maintained Red Hat Linux Release 4 and 5 and HP-UX.
• Patching Sun Solaris 10 servers with latest patch clusters, breaking mirrors, and re-mirroring.
• SAS70 and SOX security audits, patching RHEL servers using yum and repository servers
• Installed and automated start/stop of Apache and iPlanet webservers.
• VTL support from OS (HBA compatibility, firmware updates)
• Troubleshooting Hardware, Operating System Application & Network problems and performance issues.
• Korn and Bourne shell scripting for automation of jobs, cron jobs for log rotations, etc.
• Configured Jumpstart Enterprise Tool kit to provided Jumpstart installations on more than 270 servers and performed upgrades and troubleshooting of servers remotely.
• Configured and Administering Solaris Jumpstart Server, AIX NIM Server and Linux Kick start Server.
• Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T2000 Servers with SUN ZFS
• Server Virtualization using Oracle Virtual Machnies and VMWare.
• Creating Sun virtualization zones/containers/LDOMS(logical domains ) installation, configuration, troubleshooting, start, stop, upgrade and code deployments on all the production and testing servers.
• Mirrored volumes on the Sun Sparc servers. HP-Blade servers had hardware mirroring.
• Created NFS, UNIX admin mount point, and patch installation of all QA servers.
• Installed, Configured Sun and Veritas Clusters.
• Worked on CA NSM tool monitoring for monitoring various applications and networks.
• Installing and configuration and maintenance of Veritas Netback up 4.5/5.1 and TSM
• Implemented and configured Backup policies and Storage Units.
• Managing disk storage with Veritas Volume Manager 3.5/4.1 and Solaris Volume Manager and Veritas File System (VxFS).
• Written Shell Scripts to collect the System performance Information, account information on a daily basis.
• Implemented NIS and NFS for administrative and project requirements.
• Setting up the thresholds on the parameters (CPU/Memory/Disk/Network) and alerting the users when the usage reaches the thresholds.
• Tuning the kernel parameters based on the application/database requirement.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Monitoring System Performance - Virtual memory, System events, Swapping, Disk utilization, CPU utilization.
• Troubleshooting of NFS servers, NFS Clients in Auto Mount Environment.
• Installed and configured Sun Cluster 3.0 & 3.1.
• Handling CPU panic, memory problems and other hardware failures with coordination of vendors for production and non-production environments.
• Configured FTP, Telnet, sFTP, SSH, iptables and SUDO upgrades for the servers.
• Configured EMC/SAN disks in Solaris Servers and HP Blade Chassis.
• Automatically and manually taking backups / archives, with previously configured policies using Veritas Netback up.