SUMMARY:

• 71/2 years of IT experience as Unix Administrator in a diverse, distributed and networked multi - platform environment.
• Expertise in application, maintenance and support of Linux/Solaris test, Production and development servers.
• Strong knowledge of server hardware, vendor and project management skills.
• Proficient in configuring TCP/IP, DNS, NFS, NIS, NIS+, LDAP, SSH, SMTP, SNMP etc.
• Efficiency in installing, configuring and implementing the RAID technologies using various tools like Veritas volume manager and File System, VCS 4.1, 5.1.
• Extensive experience in setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different UNIX platforms like Sun Solaris 10,Red Hat Linux 4, 5, 6 software and hardware
• Experienced in Volume management, Disk Management, software RAID solutions using VERITAS Volume manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Closely worked with DBA Team for Oracle Installation and Oracle Performance Tuning.
• Competent in troubleshooting a broad range of hardware issues, fault analysis.
• Performance monitoring and capacity planning.
• Regularly Interacting with Service Delivery Managers, Supplier Managers, Service Desk and other Technical Teams.
• Handled Incident, Problem, Change and Service tickets.
• Involved in Cross Functional Team calls to help in fixing the issues while handling P1 issues.
• Hardware Administration- Replacement of disks, System boards, Power supply, CPU, Memory modules, I/O interfaces and network interfaces.
• Handling projects and Commissioning and decommissioning of servers, patching activities on servers, OS upgrades on the servers.
• Acquired the QMS process knowledge and acting as QMS SPOC for Motorola account.
• Experience in Installing, configuring and administering LINUX and Solaris servers -Using CDROM, Jumpstart and Flash on both physical and virtual (VMware) servers.
• Working experience on Sun Fire V480, V445, V1280R, Enterprise 3500/4500, Enterprise 420R and Enterprise 450 servers.
• Experience in Boot up phrases and shutdown process.
• User management and File system management.
• Experience in working on OS level up-gradation in maintenance levels.
• Experience in Firmware upgrade.
• Experience in working on OS level kernel updates.
• Good experience in VXVM, LVM and SVM.
• Packages and Patch administration.
• Core Dump and Crash Dump administration.
• Scheduling system tasks using at jobs and cron jobs.
• NFS Configuration- NFS Server and Client.
• NFS Administration- sharing and un-sharing file systems using NFS and NFS troubleshooting.
• NIS Configuration - Configuring NIS Master, Slave and Client servers.
• NIS Administration- Administering NIS users, creation/modification/deletion of NIS maps and troubleshooting NIS related issues.
• Backup and restore rot file system using ufs-dump and ufs-restore.
• Experience in Kernel parameters tuning based on the requirement from Oracle Database team.
• Installing Third party software’s- Powerbroker, Net-backup client, SOE, Caper, TADM and ITM.
• Experience in DAS, NAS, SAN and ISCSI technologies.
• Experience in configuring DNS, DHCP, Firewall, HTTP, LDAP, IPMP.
• Experience in Big-fix installation.
• Managing the backup and recovery solutions through Veritas net-backup.
• Master on Power broker master and client installation for better security.
• Involved in DR activity.
• Plan, document and support high availability, data replication, business persistence, fail-over, fail-back and using VERITAS Cluster Server in SAN environment
• Excellent ability to handle significant workload with experience in managing multiple projects concurrently in a matrix process environment
• Expert in documentation and management of standard operating procedures, test plans and providing the best practices for the processes.

TECHNICAL SKILLS:

Operating Systems: Red Hat Linux (RHEL 5 & 6), Sun OS (5.8,5.9,510) and UBUNTU

Databases: Oracle 11g- SQL, PL-SQL (Basics), Microsoft SQL 2014

Disk Suite: VERITAS Volume Manager (VxVM), LVM and SVM

Scripting: Shell basics

Backup Technology: VERITAS Net backup (5.0)

Cluster Technology: VERITAS Cluster

Ticketing Tool: Service Now, Remedy, GCARS

Process: ITIL

Monitoring Tools: Xymon & TI server

PROFESSIONAL EXPERIENCE:

Confidential, TX

Senior Unix Admin

Responsibilities:

• Part of Global service operations support team supporting across all UNIX / Linux physical and virtual servers globally.
• Troubleshooting operating system and server hardware issues at a Level 2 skill set.
• Ability to collaborate with Level 3 and other GSO support teams when issues arise that requires additional support. (Priority one issues)
• Supporting all service delivery resiliency, efficiency and Audit programs tied to compliance around server maintenance.
• Implementing, measuring, and improving all processes, procedures, and activities required to ensure maximum availability, utility, flexibility, and responsiveness of the production environment
• Part of vendor engagement model.
• Responsible managing and administering the servers onsite and remotely
• Advanced Installation of Redhat/SUSE Linux by remotely.
• System performance evaluation, monitoring and troubleshooting using tools top, vmstat, iostat, netstat commands.
• Closely coordinated with SAN team for storage migration, fabric issues, Multipath/DM issue. Upgrading Emulex cards, firmware for HBA to the current revision levels.
• Having very good working experience under high stress of critical production related issues where every milliseconds counts.
• Evaluating all the servers email notifications. Checking the health of the systems if we receive any error messages from the servers, guide our first level support to resolve problems on initial stage.
• Implemented network security to various UNIX services, test the software functionality and security administration of the Linux servers
• Creating and resolving user’s access issues (Role access, netgroups, FTP etc.,)
• Creating maintlog and inform the higher management to inform the unplanned server outages and planned change activities.
• Reviewing system log files for errors. Setting up cron jobs for backups and monitoring processes.
• Monitoring and troubleshooting servers and application performance issues
• Updating Shift handover with all the problems occurred in the shift and open issues.
• Creating tickets with Storage team and resolve any Storage performance issues.
• Working on approved change requests (Configuration changes, file system growing, etc.,)
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Involved in Planning, building, Administration and Troubleshooting of various High Availability clusters and heart beat checking on Redhat Linux and Sun Solaris using VCS 4.1 in heterogeneous SAN environment.
• Maintaining, applying changes and fail-over schedules of HA servers
• RPM and YUM package installations, patch and other server management.
• Troubleshot backup and restore problems and constant monitoring of system performance

Environment: Red-Hat Linux Enterprise servers, Solaris 8,9,10, AIX 5.3, 6.1, SAN, BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, JDK 1.5,1.6, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Senior Unix Admin

Responsibilities:

• Administration of RHEL 5, 6 and Solaris 9, 10 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• Installed Redhat Linux using kick-start, installed packages, patches applied security policies for hardening the server based on the company’s policies.
• Jumpstart Solaris servers, custom configure, install packages, patches, harden, installing using flar images.
• Created LDOMs, installed Solaris, created volumes, installed packages. Created Zetabyte file system (ZFS) in Solaris 10. Creating Zones, zpools and adding resources like network, filesystems.
• Installed, configured, custom building Oracle10g, Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Worked on creating disk groups, volumes, deporting, importing disk groups using veritas volume manager 5.1.
• Upgraded Veritas volume manager from 5.0 to 5.1 SP1
• Post build setup on Linux and Windows servers including installing and configuring COPS, TLM, NTP, Send mail, VMware Tools.
• Installed, Configured and Troubleshoot of Veritas Cluster Server 5.1 SP1 for MQM, Oracle 11g and different web Applications.
• Installed, configured, administered Veritas Cluster Server 5.0, creating service groups, adding resources, enabling attributes, testing fail-over.
• Installed, configured, administered Apache and supporting them on Linux production servers.
• Troubleshoot Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned I/O, memory, etc.
• Experience working with Middleware products such as SUN Web Server, Tomcat, Apache, JBoss.
• Assist with developing procedural and technical documentation.
• Followed project plans (system migrations and software release upgrade)

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Unix Admin

Responsibilities:

• Installed Solaris and Linux created user logins, administering the system performance and monitoring user activities.
• Building and configuring Solaris 8/10, Red hat Linux using Jump start server using Kick Start server as required for the project.
• Closely coordinated with SAN team for storage, fabric issues. Upgrading Emulex cards, firmware for HBA to the current revision levels.
• Installed VERITAS volume manager and implemented various RAID levels, logical volume creation, mirroring and file systems.
• Installation, configuration and maintenance DNS servers, Mail servers, NFS and NIS on Sun Solaris servers
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Installation and configuration VERITAS Net Backup5.1 and performing restore activities.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS 4.1 in heterogeneous SAN environment.
• Maintaining, applying changes and fail-over schedules of HA servers.
• Reviewing system log files for errors. Setting up cron jobs for backups and monitoring processes.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance and Secure Shell (SSH) implementation.
• Participate in installing and configuring of UNIX/Linux based Oracle 10g products.
• Server Virtualization using Solaris Containers (zones) and VMware.
• Wrote various UNIX Korn and Bourne shell scripts to probe network backbone equipment and provide vital statistics about the availability and responsiveness of the network.
• Installed, configured, custom building Oracle10g, Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Worked on creating disk groups, volumes, deporting, importing disk groups using veritas volume manager 5.1.
• Upgraded Veritas volume manager from 5.0 to 5.1 SP1
• Post build setup on Linux and Windows servers including installing and configuring COPS, TLM, NTP, Send mail, VMware Tools.
• Core Dump and Crash Dump administration.
• Scheduling system tasks using at jobs and cron jobs.
• NFS Configuration- NFS Server and Client.

Environment: Solaris, RHEL, Jumpstart/Kickstart, SAN-HBA, RAID, DNS, NFS, NIS, Sendmail, Veritas Suite, HA, Oracle, Zones, VMware, Sun Fire Servers - E15k, 1280, 6900, V440, V490, V880.

Unix Admin

Responsibilities:

• Day - to-day administration on Sun Solaris 8/9/10, Redhat Linux 4, 5 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server problems.
• Installed new software releases. Redhat Linux Kick start Installation - Sun Solaris Jump start Installation.
• RPM and YUM package installations, patch and other server management.
• Installed AIX 5.x using NIM on p series servers, applying packages, patches, configuring volumes.
• Creating VIO servers, LPARs, adding resources, installing AIX on p550 and p570 servers.
• Managed systems routine backup and restoring, scheduling jobs.
• Installed/ upgraded patches, firmware (OBP), and security (Kernel) patches for all applications in installed infrastructure.
• Adding software Packages and Kernel level Patches for up gradation and migration of systems from Solaris 9 to Solaris 10.
• Installed and maintained the Oracle 10g with RHEL 4 OS updated them with the required configuration based on the prep and config document.
• Regular disk management like adding / replacing hot swappable drives on existing servers workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Diagnosing hardware/software problems and provide solutions, creating zones.
• Perform daily maintenance routines on SUN servers, monitoring system access, managing file space and tuning the system for optimum performance.
• Trouble shooting SUN Faulty Management using SFM on Sun Solaris.
• Installation, Configuration and Troubleshooting of HP Servers of Blade, DL and ML Series Servers with Redhat and Solaris installed.
• Strong experience in setting up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota, booting issues, login issues.
• Creation of Zones, Containers and adding resource pools to the Containers in Solaris 10.
• Installed and configured Send Mail server for automated mails for completed backup process.
• Configured, Complied and Installed Apache 2.0 web server.
• Applying security policies and managing disaster recovery.
• Installing, configuring, de-ploying Websphere 6.1, JBoss 4.2 application servers on both Sun and Linux boxes.
• Worked on a project where centrify is installed, configured and joining servers to the domain.

Environment: Sun Servers (Sun Fire 280R, V1280, E2900, E6900 and E25K), Red-Hat Linux Enterprise servers, Veritas Volume Manager 3.5, Oracle 10g, Websphere 6.1, EMC Symmetrix and Clarion, Solaris 8/9/10, Windows 2000/2003 servers, MS Office, Shell programming.

Unix Admin

Responsibilities:

• Administration and auditing the Desktop machines and SUN servers.
• Patched management and regular system updates.
• Configuring NFS, Share, DNS.
• Hard disk and storage allocation and management.
• SENDMAIL configuration and administration, testing the mail server.
• Day-to-Day tasks on VERITAS Volume Manager.
• User administration, management & archiving.
• Troubleshooting the network issues and response problems
• Creating new file systems, managing and checking data
• Consistency of file systems.
• Writing Shell Scripts for automating and testing the code.
• Scheduling full and incremental backups using NetBackup on daily, weekly and monthly basis.
• Hardware Administration- Replacement of disks, System boards, Power supply, CPU, Memory modules, I/O interfaces and network interfaces.
• Handling projects and Commissioning and decommissioning of servers, patching activities on servers, OS upgrades on the servers.
• Acquired the QMS process knowledge and acting as QMS SPOC for Motorola account.
• Experience in Installing, configuring and administering LINUX and Solaris servers -Using CDROM, Jumpstart and Flash on both physical and virtual (VMware) servers.
• Working experience on Sun Fire V480, V445, V1280R, Enterprise 3500/4500, Enterprise 420R and Enterprise 450 servers.
• Experience in Boot up phrases and shutdown process.
• User management and File system management.

Environment: Solaris2.x and Linux, DHCP, NIS, NFS, Sun E220R, Sun 420R, Red-Hat Linux Enterprise servers, Solaris 8,9,10, AIX 5.3, 6.1, SAN, BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, JDK 1.5,1.6, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Unix Admin

Responsibilities:

• Worked on Linux and Solaris platforms through the ticketing system following strong ITIL process.
• Supported all kind of LINUX and Solaris OS hosted servers.
• Regularly Interacting with Service Delivery Managers, Supplier Managers, Service Desk and other Technical Teams.
• Handled Incident, Problem, Change and Service tickets.
• Involved in Cross Functional Team calls to help in fixing the issues while handling P1 issues.
• Hardware Administration- Replacement of disks, System boards, Power supply, CPU, Memory modules, I/O interfaces and network interfaces.
• Handling projects and Commissioning and decommissioning of servers, patching activities on servers, OS upgrades on the servers.
• Acquired the QMS process knowledge and acting as QMS SPOC for Motorola account.
• Experience in Installing, configuring and administering LINUX and Solaris servers -Using CDROM, Jumpstart and Flash on both physical and virtual (VMware) servers.
• Working experience on Sun Fire V480, V445, V1280R, Enterprise 3500/4500, Enterprise 420R and Enterprise 450 servers.
• Experience in Boot up phrases and shutdown process.
• User management and File system management.
• Experience in working on OS level up-gradation in maintenance levels.
• Experience in Firmware upgrade.
• Experience in working on OS level kernel updates.
• Good experience in VXVM, LVM and SVM.
• Packages and Patch administration.
• Core Dump and Crash Dump administration.
• Scheduling system tasks using at jobs and cron jobs.
• NFS Configuration- NFS Server and Client.
• NFS Administration- sharing and un-sharing file systems using NFS and NFS troubleshooting.
• NIS Configuration - Configuring NIS Master, Slave and Client servers.
• NIS Administration- Administering NIS users, creation/modification/deletion of NIS maps and troubleshooting NIS related issues.
• Backup and restore rot file system using ufs-dump and ufs-restore.
• Experience in Kernel parameters tuning based on the requirement from Oracle Database team.
• Installing Third party software’s- Powerbroker, Net-backup client, SOE, Caper, TADM and ITM.
• Experience in DAS, NAS, SAN and ISCSI technologies.
• Experience in configuring DNS, DHCP, Firewall, HTTP, LDAP, IPMP.
• Experience in Big-fix installation.

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN (Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6, VMware Virtual Client 3.5, VMware Infrastructure 3.5.