PROFESSIONAL SUMMARY:

• 7+ years of extensive experience in System administration and application support working on RedHat Linux 4.x/5.x, VMWare ESX 3.5/4.0 & 4.1, Solaris 8/9/10, SUSE Linux 10 & NetApp.
• Installation, Configuration, backup, recovery, maintenance and support of Solaris, RedHat Linux.
• Supported Infrastructure services such as NFS, FTP, DHCP, DNS, NTP, Samba, VNC, and SSH.
• Planned, scheduled and Implemented OS patches and OS upgrades on both Solaris & Linux boxes as a part of proactive maintenance.
• Installation Configuration and Administration of VERITAS Volume Manager, VERITAS Cluster Server 5.0, VxFS, Disk arrays in SAN environment and extensive experience in creating and managing Logical volume manager (LVM) in Red - hat Linux.
• Installing, upgrading, and configuring RHEL 3/4/5/ 6 using Kickstart and RedHat Satellite server.
• Experience with provisioning EMC Clariion and EMC Symmetrix disks for RHEL/Solaris OS.
• Moving RHAS machines from physical to virtual including VMware ESX 3.5 and VSphere 4.0
• Responsible for setting up three node Oracle RAC and Veritas RAC for RHEL5 servers.
• Involved in installation, migration and implementation on SAN and NetApp systems.
• Responsible for supporting 200+ servers of Redhat 4,5,6 and Solaris 10.
• Created Aggregates, Volumes, Qtrees and setup quotas on NetApp filers.
• Experience in installing, configuring and maintaining Web Sphere Application Server.
• Experience in Installation, Configuration and Troubleshooting of various web server issues including Apache Web Server 2.x/1.x, Tomcat 5.x/4.x/3.x.
• MaintainedQAandDevservers used for Testing implementation of Products.
• Good experience in setting up of RAID0, RAID1 (mirroring) and RAID5 for data redundancy.
• Experience in working with Cisco SAN fabrics and EMC storage devices, including Centera, Clariion.
• Experience in Migrations using different software’s like EMC open migratory, LVM, and rsync.
• Experience on working Red Hat GFS and Veritas Cluster File systems.
• Coordinated with DBAs to tune kernel for Oracle installations on Red Hat Linux.
• Configured and Installed HPILO (Integrated Lights Out Advanced Lights Out).
• Creating and maintaining user accounts, profiles, security, rights, disk space, and process monitoring.
• Configured Network Concepts NFS, DNS, NIS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Responsible for setting up Linux, Apache, MySQL and PHP website.
• Installation and configuration of web hosting administration such as FTP/SSH/HTTP/telnet.
• Strong knowledge of system performance and monitoring tools.
• Running security scans and remediating Servers to meet enterprise standards.
• Installing, configuring, and maintaining Samba Web Servers, WebLogic and WebSphere Application Servers, and Oracle, SQL and Sybase database technologies.
• Network connectivity troubleshooting TCP/IP 10/100BaseT network and Wireless using Cisco and Bay Networks Routers Supporting both Desktop and Laptop PCs using standard PCI, PCMCIA and Wireless NICs.
• Installed and configured Ksar 5.0.4 for system activity in the RHEL 4 and 5.
• Capable of quickly learning and delivering solutions as an individual and as part of a team.
• Managed Patches, Upgrades and Licensed Products for System software on all flavors like DB upgrades, OS patches of UNIX and Linux Servers.
• Extensive experience in Databases, Clustering, SSLVPN, Firewalls and cross-platform tools like Samba.

TECHNICAL SKILLS:

Operating Systems: Linux Red Hat 3/4/5/6, Sun Solaris 7, 8, 9 & 10, VMware 3.5/4.1Hardware: Dell PE 2600, PE 1900, PE 2800,, PE 2900, PE 2950, Sun Fire V440, V120, V480, V490, V880, Sun Fire X4100, X4200, X4440, X4140, X4170, X4500, X4540 Sun Fire 2900, 4800, 6900, Sun Enterprise Servers T5120, T5220, T5240, T2000, T3-1, T3-2, M5000 & M9000, IBM Blade center and various HP and Lenovo Servers.

Tools: VERITAS Volume Manager, Veritas Cluster Server 4.1/5.0/5.1, VERITAS Net backup 5.1, Sun Cluster 2.x & 3.x, VMWare ESX

Languages: Shell Script, Perl, PHP

RDBMS: SQL, Oracle, MySQL

Networks: NIS, NFS, LDAP, DNS, Routers and Firewalls

Protocols: TCP/IP, FTP, SSH, SFTP, SCP, SSL, ARP, DHCP, TFTP, RARP, PPP, POP3 and SMTP

Storages: Netapp, EMC Symmetrix/Clariion

PROFESSIONAL EXPERIENCE:

Confidential, Los Angeles, CA

Sr. Unix Systems Administrator

Responsibilities:

• Working as a Systems Administrator and Solaris / Linux Systems Engineer, supporting and maintaining UNIX servers running (LINUX, Solaris and AIX) in a distributed environment.
• Supporting the infrastructure comprising up to 2000+ Unix/Linux/ Ubuntu/Solaris servers.
• Extensive experience in Infra upgrades and DB refreshes.
• Worked with VERITAS Volume Manager (VxVM) for creating volumes and file systems for various applications and databases.
• VERITAS Cluster Services configuration on 2/4 node cluster hosts. These hosts are mostly production databases running Oracle 10g Enterprise.
• Extensive experience in performing most common configuration and administration tasks with VERITAS NetBackup including: - Managing media, storage units, unit groups, catalogs and lifecycle policies etc...
• Expert level knowledge of Symantec Veritas NetBackup.
• Set up hosting environment in our data center, this includes mounting hardware in cabinets, racking and configuring servers, and cabling hardware and network devices.
• Troubleshoot servers and/or network issues. Act as a point of contact to resolve hardware and software problems in the data center.
• Responsible for migration of the server’s data centers and Workload migrations as well as upgrading the system software as per the requirements.
• Handling all NFS, Auto Mount, DNS, LDAP related issues.
• Installed and Configured Oracle RAC on UNIX, Linux Platform.
• Coordinating with system, Network and Database administrators to troubleshoot various issues during implementation.
• Installing and upgrading the packages and patches for Red-hat, Solaris and SuSE hosts.
• Strong knowledge of Apache, Tomcat in Linux/Solaris OS.
• Configuration/troubleshooting of multi-paths on Solaris and bonding on Linux Servers.
• Extensive experience in writing Bash & Perl Scripts to handle repetitive jobs.
• Provided frontline support to the service ticket requests like login failures, account creation, process management, restarting the apache, DNS services, resolve the SSH login problems.
• Involved in the yearly maintenance patching for both SAN and NAS connected Linux servers.
• Strong applied experience with storage related technologies; Replication and Cloning, Multi pathing, Volume managers, Tiered Storage, RAID Levels, FCIP.
• Strong experience with IP-based, iSCSI and Fiber networking for SAN/NAS technologies.
• Storage Operation - Provide daily management of NetApp storage estate through the use of management tools ensuring operational response for execution, provision, access and performance.
• Extensive experience in VMware VSphere 5.0.
• Proficient technical skills in various editions of ESX/VMWARE VSphere plat for Administration.
• Installation and configuration of LAMP / SAMP stack to configure media wiki / word press

Environment: Red-hat Linux 5/4, SUN Servers - E10K, 12K, 25K, E480, E3800, E4800, IBM xSeries 335/336/345/346/365, Windows 2000, VERITAS Cluster Software, RHEL, VMware Infrastructure 3, VERITAS Volume Manager 4.x, VERITAS Net Backup 6.5, Oracle RAC 11g, NFS, DNS, LDAP, Net App NAS, Apache TomCat, Solaris Zones, VERITAS Cluster server (VCS), BASH, Perl, D-trace, q-mail, Oracle 10g, My SQL, SAN, Shell programming, EMC DMX3000, 2000, 1000.

Confidential, North Carolina

Unix/Linux Administrator

Responsibilities:

• Administrated Linux cluster consisting of 128 nodes running both on Redhat and Suse.
• Added new nodes to the cluster, updated the nodes with patches from RHN and satellite server.
• Applied Patches, installed monitoring tools, upgraded BIOS on HPC Clusters.
• Added new nodes to the cluster, updated the nodes with patches from RHN and satellite server.
• Configuring servers and setting up Filesystems, managing Disks space, space clean up as required, clean setting up and troubleshooting networks issues like NFS/DNS/DHCP.
• Managed Disk using LVM, resized disk space and Managed disk space from NetApp filers.
• Trouble shooting system - OS level and Hardware level.
• Setup NTP server and synchronized clients with NTP server.
• Administrate system logs and security logs, Performed Kernel tuning and kernel patching.
• Working knowledge of Amazon AWS ( spin up cluster on the cloud as per requirement
• Managing Remedy Queue to assign tickets according to level of expertise required and resolving the cases to resolution for cases who’s ownership is taken
• Refresh/copy databases using Unix commands & scripts(ART-tool using DD command son backend) every quarter on stage and development servers from respective DR of that Data Base.
• Re-firing Backups, Modifying backup config file (implementing various changes advised by
• DBA ) and solving various backup related issues on DBBS(Data base backup systems)
• Create User id and adding them to respective groups to get access to the security servers depending on validation of justification from client.
• Storage Provisioning, Volume and File-system Management using LVM on Linux in a heterogeneous SAN environment (EMC /NettApp) and using Veritas on SUN OS.

Confidential, Atlanta GA

Linux System Administrator

Responsibilities:

• Performed Red Hat Linux Kick start installations on Red hat 4.x/5.x, performed Red Hat Linux Kernel Tuning, memory upgrades.
• Installation & Configuration of software packages in Red hat Linux using both yum and rpm installations.
• Experienced in troubleshooting critical hardware and software issues and other day-today user trouble tickets.
• Used various networking tools such as SSH, Telnet, rlogin, ftp and ping to troubleshoot daily issues. Also responsible to design, implement and maintain DNS, NFS and FTP services.
• Creating and Administrating File systems on Red Hat Linux.
• Installation and Configuration of VMWARE ESX servers and Created RHEL Guest VM's for Dev/ Test and production environment.
• Upgraded Servers with VERITAS Volume Manager (VxVM) from 3.x to 4.1.
• VERITAS NetBackup installation & maintenance Backup/restore on ADIC (Intelligent Storage Scalar i2000k Library Management Console) using server WindowsNT/2000& Sun Solaris server & taking backup in DLT tape & checking the job failures.
• Installation and support of various applications like WebLogic server 9.x, JBoss 4.x, Apache Tomcat6.x, and Oracle 9i, 10g, in RHEL 4.
• Maintained Volumes and File systems for Oracle, MySQL, DB2, Sybase databases.
• Configuring DNS, DHCP, NIS, NFS and other Network Services in IBM Power Series.
• Implementation of VERITAS Cluster Server 4.1 for Oracle 9i Database Environment.
• Troubleshooting Unix/Linux network and security related issues.

Environment: RHEL 4.x/5.x, Solaris 8/9/10, VERITAS cluster server 5.0, VERITAS foundation suite 5.0, Apache 2.2.x, Oracle 9i,10g, JBoss 4.2, VMware, Sun Fire x4100, x4200, x4250, T2000, T5440, M3000, Dell R805, EMC Symmetric 8830, 8840, DMX -3 NFS, and DNS, EMC, Shell, bash scripting.

Confidential, Tallahassee, FL

Unix/Linux Engineer

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Linux, HP-UX systems.
• Installing and configuring the DNS, DHCP servers and assigning IP addresses to client hosts.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
• Implemented Virtualization using VMware. Installed VMware ESX server on Dell Servers and configured Red Hat Linux 5.8 / Windows 2008, XP virtual machines for various applications.
• Configuring the FTP server to maintain the shared folders in organization.
• Worked on Web servers which include Tomcat 5.x/4.x/3.x & Apache Server 2.x/1.x.
• Worked closely with the SAN storage, Network and Security teams.
• Installing and updating patches on the servers using Redhat Satellite servers.
• Performance monitoring with Ksar, iostat, vmstat, mpstat and Other Tools.
• Experience in Network Monitoring Application Software such as Nagios.

Environment: RHEL 4.x, 5.6, 5.8, Windows servers 2000, 2003, 2008, XP, 7, Debian, Nagios, WebLogicOracle 9i, 10g, Mail server, Listserv, Veritas volume manager, VMWare ESX 3.5/4.0 & 4.1, HP Blades

Confidential

System Engineer

Responsibilities:

• Installing, Configuring and Maintaining the DHCP, DNS, NFS send mail server.
• Performed installation and configuration of LDAP.
• Resolving TCP/IP network access problems for the clients.
• Implementing Remote System Monitoring with Sun Microsystems.
• Performing extensive Logical Volume Management (LVM) tasks.
• Open-source development, including code contributions to Bcfg2, MUNGE, pdsh, SLURM, VMware Ruby .
• Configured and maintained NFS servers on Linux.
• Setting up Oracle 8 server in Linux/Unix environment.

Environment: Linux (RedHat Enterprise, CentOS), Centos, Windows 2003, HP, IBM, Solaris, SLURM, Oracle 8, SSH Gate, Cisco routers/switches, Dell 6400, 1250, Sun E450, E250.