SUMMARY:

• Over eight years of System Administration, experience on various OS platforms including Oracle Enterprise Linux 6.3&6.5, Red Hat ENT Linux3,4,5 and 6 versions, Solaris 8/9/10,IBM AIX 3.5, 4.3/5L,6.1,7.1 and Window2003/2008.
• Worked on various Oracle M5000, T5220, T5240, T5 - 2 and V440, IBM p-Series Servers p795, p770, p595, p590, p570, p550 and p520, JS21 Blade, JS20 Blade and have extensive experience in Configuration, Installation and Administration of AIX 4.3.x/5L/6.1 and Linux (Red Hat), Sun Solaris Operating Environments.
• AIX 5x and 6x installation, upgrading, migration and troubleshooting.
• Experience in installing Operating Systems using DVD and Network. Experience in Jumpstart/Kickstart installations for Red Hat Linux and Sun Solaris servers.
• Involved in installation, configuration and administration of RHEL 3.x/4.x/5.x Servers.
• Involved in upgrading ILO Firmware, BIOS and troubleshooted hardware issues from ILO, ILOM, ALOM and XSCF.
• Worked as Data Center Manager and has expertise in Racking, Physically inserting RAM and replacing faulted Disks.
• Involved in migration and consolidation of Unix Servers in Development, Staging and Production Environments.
• Expertise in creating local LDAP users and resolving User Permissions. Updated Patches and Packages using Automation tools and Commands.
• Performed all the Maintenance and Auditing tasks during Maintenance window. Expert in following all the Enterprise Process and Procedures during Change Management, Maintenance windows, migrations and upgrades.
• Experienced in configuration & maintaining Veritas Cluster server, Netback up, Veritas volume manager, Veritas file system and Sun Cluster.
• Good experience in Verities products such as Volume manager 5.0 and Verities Clustering (VCS).
• Virtualization Products Oracle X86 & Sprac Solaris 10 Zones/ Containers / VMware ESX Server 3.5/4.0/4.1 / Virtualization Client 2.5.
• Experienced in creating and maintaining users, profile, security rights, disk space and process monitoring.
• Experienced in file system administration, resolving system errors, crashes and file system errors.
• Installation and configuration of VIO Servers with Aix 5.3 on 570, 590 and 595 models.
• Implementing and managing resource in VIO server.
• Experience in Installation and Configuration of VIO Server (AIX 5.3) and installation and configuration of client LPARs
• Extended knowledge in installing AIX in an LPAR environment pSeries including configuring VIOS.
• Experienced in Implementing NIM for AIX System Installations and Upgrades.
• Possess hands on experience with the VMware ESX Server, VMware Virtual Center, Vmware HA, Vmware DRS, and Vmware Consolidated Backup (VCB).
• Creating new file systems, mounting file systems and unmounting file systems.
• Involved in installing, configuring and administering HP ProLiant DL 580 G5, DL 380 G7 and HP Blade Servers BL 280c G6, BL 465c and IBM Enterprise X3850 X5, X3950 X5 and Blade Servers.
• Installation, Configuration and administration of IBM Web Sphere Application Server V6.0/6.1, Weblogic 5.1, 6.1, 7.0, 8.1, apache/tomcat, samba & send mail, Web Sphere Application Servers on RHEL, Solaris, AIX along with DB2 UDB & IBM HTTP server with SSL for secure communication & providing technical support to users.
• Closely worked with application Admins for websphere, web logic, IIS installation and connection trouble shooting.
• Security Configuration, Network, System Monitoring on UNIX based Servers - Basic hardening of the system and network security, attaining the goal of allowing only the valid users/ports into the system.
• Experience in Managing various Network related tasks such as TCP/IP, NFS, DNS, DHCP and SMTP.
• Configuring and Administering NIS, LDAP and FTP on Linux and Sun Solaris server environment.
• Experienced in writing Shell scripts using ksh, bash.
• Helped and configured single sign on for application team.
• Experience in Troubleshooting Hardware, Storage, Application Bottlenecks. System Recovery, Crash dump analysis and Performance Tuning.
• Have very good experience working with Change Management for scheduling changes on Production and UA servers using BMC Remedy Ticketing System.
• Experienced in different tools for monitoring the health checkups for machines like CMC and Nagios version 2.10.
• Managing user accounts, system security, change management, documenting and following Company Standards.
• Experienced in supporting 7x24 production computing environments, on-call and weekend support.

TECHNICAL SKILLS:

Operating Systems: Oracle Enterprise Linux 6.3&6.5, Linux (Red Hat 3.x, 4.x and 5.x,6.x, Suse (SLES 9/10)), Solaris 10/9/8/7/2.x, IBM AIX 5.x, 6.1, 7.1 HP-UX 11.xx, 11iv3, Windows NT4.0.

Hardware: HP DL360, DL385, DL 580,BL 280c,BL 465c G7/G6/G5, Sun Fire Servers - E25k,E15k,12k, E280R, E480R, V240, 420R, V440, V480, V490, V880,V, E6900 and E2900. IBM - F-SERIES AND P-SERIES, IBM RS6000, Blade Servers, Data Centre Servers, Oracle M5000, T5220, T5240, T5-2 and V440.

Tools: VERITAS Netbackup 6.0/6.5, VERITAS Storage Foundation Suite, Sun Cluster 3.2/3.1, Solaris Volume Manager, Tivoli Storage Manager 5.x, send mail, POSTFIX, CMC (Central Monitoring Console)

Languages: Shell scripting, PERL, ksh, C, C++, PHP, JAVA, PL/SQL, HTML, JavaScript, J2EE, JSP, Servlets.

Databases: Oracle 12c,11g/10g/9/8, Sybase 11.5.1, POSTGRESSQL, MYSQL, MSACESS

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches and LAN.

Web/Applications Technologies: Lotus Domino 5 / 6, Apache http 2.2/2.0, Apache Tomcat 5.5/6.x, Weblogic 8.0/9.0/9.1/9.2/10.3 , WebSphere 5.0/6.0/6.1, JBoss 5.0,4.0, IPlanet, IIS, ESX 2.5.1, 25.2, 3.0, 3.5, IBM Http Server 6.0.

EXPERIENCE:

Confidential, MA

UNIX Systems Administrator

Responsibilities:

• Provided 24 x7 on-call supports in debugging and fixing issues related to Linux, Solaris, OVM, VMware, and EMC VMAX,VNX800,VNX5600,VNX5100,HP Eva storage.
• Configured SENDMAIL, SNMP, NTP on Linux6.3, 6.5 & solaris10.
• Migrated Solaris10 zones from T 00.
• Migrated Solaris 10 from T5220 to T5-2.
• Storage Migration from VMAX to VNX 8000 & VNX 5600 using VPLEX.
• Implemented OEM Cloud control 12c for Patching Oracle Linux.
• Worked on T5-2,T5220, M5000, T5240, Cisco UCS.
• Deployed Oracle Enterprise Manager OPS center for managing Oracle VM’s and OS provisioning on Physical Machines.
• Worked on Solaris volume management, ZFS file system, ASM disks.
• Deployed Oracle Enterprise Linux6.3 virtual machines on Oracle Virtual Manager & VMware.
• Administration of Zones and LDOM, Packages and Patch Administration, Troubleshooting Hardware and Operating system related issue.
• Management of Users, Groups, File systems, Password Policies, File/Directory Permissions, Ownership.
• Perform the backup and restore including root file system from Data Protector.
• Installed Data Protector and HP Open View on clients.
• Installing, configuring and maintaining and upgradation of Sun Servers such as M5000, T5240, T5220.
• Active directory integration for UNIX machines.
• Built Local yum repository for Oracle Enterprise Linux.
• Registered Red hat Linux with Oracle enterprise Linux.
• OVM manager administration. Supported application team for installing the weblogic application.
• Supported DBA for installing Oracle 12c database on Oracle Enterprise Linux 6.3.
• Installed packages in Oracle enterprise Linux6.3& 6.5.
• Responsible for Day-to-day systems administration tasks in Solaris and Linux.
• Hardware maintenance on oracle servers such as M5000, T5220, T5240, and V440.
• Upgraded Firmware on T5220, T5240 and configured the system consoles for M5000, T5220, and T5240.
• Worked on ALOM, ILOM, and XSCF command shell.
• Installed Oracle Enterprise Linux using NFS in Oracle Virtual Manager

Confidential, St Paul, MN

UNIX Systems Administrator

Responsibilities:

• Provided 24 x7 on-call supports in debugging and fixing issues related to Linux, Solaris, AIX, HP-UX and WebSphere Application Servers.
• Installation/Maintenance of Hardware/Software in Production, Development & Test Environment as an integral part of the UNIX RHEL/ SOLARIS/HP-UX/AIX) Support team.
• Installed/Configured/Maintained/Administrated the network servers DNS, NIS, NFS, SENDMAIL and application servers Apache, Websphere, Jboss, Webogic, Oracle E-business suite and Samba on Linux.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
• Involved in Adding new disks, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, server hardening and crash recovery issues.
• Involved in Installation/Configuration of multiple instances of IBM HTTP Server and configured F5 load Balancers on Linux.
• Evaluation and implementation of cross-platform SSO and user administration tools including IBM’S IDI/TIM and CA’s Admin.
• User administration and SSO control across seven platforms and 100,000 users for home office, regional offices.
• Implemented the skills of Load balancing for edge components using F5’s BigIP load sprayer.
• Implemented Virtualization using VMware ESX Server in Linux on HP-460C Blade, Dell-2950.
• Involved in AIX and VIO Server administration of p-series p770, p590, 570, 550 Servers.
• Implementing and managing resources in VIO server.
• Responsible for Installation, configuration, Maintenance, Deployments, Update Ears, Monitoring, performance tuning, JVM Load/Stress Testing of WebSphere App Server 6.1 on AIX and Solaris.
• Installed and configured HACMP and VERITAS cluster topology and resources.
• Implemented, installed and supported high availability (HA) cluster on HACMP for AIX and VERITAS for Sun Servers.
• Sudo setup on AIX 5.0, 5.1, 5.2, 5.3 and 6.1
• Install golden image of AIX 6.1 using Storix System Backup utility.
• Installed AIX 5.3 and 6.1 using Media and mksysb.
• Worked on VIOS and NPIV client Storage migration.
• Performed troubleshooting on Java applications using WAS logs, traces, Log Analyzer, Resource Analyzer/Tivoli Performance Viewer in production environment.
• Implemented security in systems and network for all Sun Enterprise Servers & Desktop Servers.
• Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T2000 Servers with SUN ZFS.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Administered file system and volumes using Veritas Storage Foundation, Solaris Volume Manager on Solaris and Logical Volume Manger on Linux. Installed and Configured Veritas Volume Manager for Development, Test and Production environments.
• Involved in Configuring/troubleshooting of internet firewall, protocol firewall, DMZ zone, Proxy Servers and Trusted zone and Supported groups responsible for disaster recovery, monitoring data center backups, data center migrations (P2V) and troubleshooting Backup errors.
• Key participant in implementation and integration of three new data centers including physical, logical and application level testing and support and developed and executed test plans for Veritas Cluster with Netapp SAN.
• Package management like Install, remove and update and querying packages using RPM tool.
• Monitored the performance of the system using ps, prstat, vmstat, mpstat, perfmeter and iostat to check the CPU utilization, bottlenecks of I/O devices, Memory usage and Network traffic.
• Implementation, configuration, administration of LAN, WAN, CISCO VPN, Cisco routers, Pix Firewall and VOIP Systems.
• Supporting servers with Oracle 10g and MySQL Databases, co-coordinating with DBA’s for Kernel Tuning and performance monitoring.
• Responsible for configuring Postfix mail relays with Mail Exchangers, Bind DNS Server and clients, SNMP v3 and NTP relays.
• Experience on IBM power6 and power7 machines.
• Adding new LUNs and NFS file systems on the running production PowerHA (HACMP) nodes.
• Responsible for installing, configuring, maintaining, upgrading and troubleshooting EMC powerpath on Solaris 10 and Linux.

Environment: Linux (RHEL 4.x,5.x and 6.1/6.2), SUSE 11/10, Solaris 10, AIX 6.1, 7.1, VIO, HACMP, Oracle 11/10g, HP DL360, DL385, DL 580,BL 280c,BL 465c G7/G6/G5,SUN Servers M3000,M4000,M5000,M8000, SUN Fires, HP open view service desk (OVSD), Jboss 5.0, WebSphere Application Server 5.x/6.0/6.1, WebSphere MQ 5.3, Samba, Autosys 4.5, Perl, ksh, Shell Scripting, Bash, Veritas Volume Manager (VVM), F5 Load balancers, Site Minder5.5/4.5, LDAP I-planet Directory Server6.0, EMC Storage SAN, Veritas Cluster Server (VCS), VMWare servers, and Apache.

Confidential, Jacksonville, FL

UNIX Systems Administrator

Responsibilities:

• Provided troubleshooting support for development, test, and production environments for UNIX and Linux servers.
• Performed installation, configuration, and upgrades primarily on AIX 4.x/ 5.1/5.2/5.3/6 L and Redhat Linux AS 3.0, AS 4.0.
• Installed and configured IBM AIX 5L operating system on IBM System p6 570/595 servers.
• Administered and maintained IBM Power System p5 510/550 servers running AIX 5L 5.x operating system
• Installation, configuration & administration of Redhat Enterprise Linux 4.x/5.x servers.
• Maintained SUSE Enterprise Linux 9servers in development, test and Production environments and proactively monitored and administered production and development servers.
• Implemented cluster systems on IBM Systems p servers and performed monitoring of the clusters using IBM HACMP 5.2.
• Proficient in IBM Hardware Management Console to build and partition the IBM Power5 and Power5+ servers and perform NIM Installations on LPAR.
• Worked with IBM Web-based System Manager (WSM) to manage AIX cluster over the network.
• Building and administrating VIO server and Lpar clients.
• Experience in Installing, configuring, and maintaining IBM Rational ClearCase and Rational ClearQuest on AIX platforms.
• Analyzed system performance, client-to-server traffic, and server-to- server traffic.
• Monitored file system space using simple shell scripts; resize file systems as and when required.
• Managing Sun, Compaq and Linux workstations and servers.
• Configured Hardware and Software RAID on Digital & Sun Servers
• Installation of Oracle patches and troubleshooting, creating and modifying application related objects, creating profiles, users, roles and maintaining system security.
• Performed installation, periodic maintenance updates and applied APAR fixes on Linux and AIX servers.
• Migrated AIX 5.3 with HACMP 5.1 to HACMP 5.2 (online).
• Built, decommissioned, configured and monitored 2 node HACMP 5.2 clusters.
• Managed nodes running under SAN environment through HACMP.
• Troubleshoot hardware, software and operating system related errors on Linux and UNIX.
• Troubleshooting AIX/Linux network problems.
• Performing Failovers in HACMP cluster environment, monitoring servers.
• Experienced in creating Logical Partitions (LPAR) on Tivoli Storage
• Created users, manage user permissions, maintain User & File system quota on AIX and Linux servers.
• Backup configuration using IBM Tivoli Storage Manager for AIX Servers.
• Upgraded Redhat Linux OS on Websphere, JBOSS and Oracle database servers from V3, V4 to V5.
• Installation of Oracle 10G RAC with Cluster Ready Services (CRS) on Linux, creating database, creating Oracle users & export and importing database, creating role back segment etc.
• Monitored servers, switches, ports etc with Nagios monitoring tool.
• Experience in LVM, Kernel and performance tuning on IBM AIX and Redhat Linux.
• Define/setup network protocols, Network File Services (NFS) and Network Information Services (NIS) on Linux and AIX servers.
• Configuration of Security/SSL,SingleSignon (SSO) for Oracle Applications.
• Performed security, users, group’s administration and daily backup and restore operations, networking service, performance, and resource monitoring.
• Documented and maintained the inventory using asset management techniques.

Environment: IBM AIX 4.3.3, 5.1, 5.2, SLES 9, 10, Redhat 3.x, 4.x, 5.x, Solaris 8,9,10, HPUX 10.x, 11.x, RS/6000, X86, IBM P6 P570, P595, P5 510, 550, HACMP 5.2 and 4.5, Tivoli Storage Manager, Veritas Netbackup 4.5, WebSphere Application Server 3.5/4.0.x, Single Sign On, JBOSS, LDAP, DNS,VIO,NIM, NFS, TCP/IP, SAN, NAS, Nagios 2.x, WebLogic 8.1, Oracle 9i/10g, Tivoli Storage Manager 5.x, VMware 2.x, Shell Scripting.

Confidential, Redwood City, CA

Linux Systems Administrator

Responsibilities:

• Systems monitoring and administration of Servers for day-to-day problems, patches, user administration, hardware failure, monitoring log files, backup, software up gradation, configuration changes and documentation.
• Installation and Administration of RHEL 4.5,4.6,4.7,Solaris 8, 9 and 10 and using Jump start serverincluding performance monitoring, scaling and capacity planning and hardware maintenance of HP Servers, IBM and Sun fire servers.
• Sitting in NOC room and watching the alerts and involved in resolving the alerts.
• Open the Bridge and get other teams in a call for resolving the alerts.
• Monitoring and Managing the DNS resolvers using the IBM TIVOLI NETCOOL and Nagios.
• Dampening/Bouncing the Bgpd process using the Cobalt tool.
• Key role in deployment, installation and configuration of Sun Servers in production environment.
• Planning, installing and configuration of operating system on new Sun Servers.
• Installation, configuration and maintenance of DNS, LDAP and NIS+ on Sun Solaris and IBM AIX environment.
• Installation and configuration Veritas Net Backup on Sun Severs and performing Backup using VNB.
• Installed and configured Solaris 8, 9 &10 on SunFire v210, V240, V440, E2900, E4800, E4900, E6900 and E15k servers.
• Implementation and maintenance of Veritas Cluster Server on Sun luster Server.
• Creating SSL certificates for windows servers and Solaris/Linux Servers.
• Providing day-to-day user administration like adding or deleting users, password aging.

Environment: Linux 4.5,4.6,4.7, SUN Solaris10, DL360,DL385,DL580,BL280c,E15K, E10K, E6500, SunfireV880, V440,Monitor, IBM Netcool, Sun Storage Array D1000, A5000, T3,Storagetek L700, RS/6000 and P-Series Servers, Web logic, Veritas Volume manager, Veritas netbackup, Veritas cluster server.

Confidential, Merryville, IN

Linux Server Administrator

Responsibilities:

• Install, Configure, and distribute newly acquired equipment.
• Support for Linux operating systems and do install at clients place as they are resellers of computers
• Install Software, troubleshoot, diagnose, and resolve hardware and software and connectivity problems in accordance with Service levels.
• Installing sendmail on Linux for their outgoing mail service while they use bulk emails.
• Supporting for domains hosting and domain registration and creation.
• Troubleshooting desktop and server problems.
• Providing quality 1st and 2nd level support to all users in accordance with National polices and technical standards and reporting to the National IT Business Systems Manager via the Technical Services Team Leader.
• Account management using Active Directory such as resetting password, unlocking accounts, creating new accounts, adding users to GP, setting up email accounts on exchange server and distribution lists etc.
• Remote installation, configuration and troubleshooting of printers, software and business applications.
• Determining and resolving networking issues such as loss of network connectivity and missing network drives.
• Automated Windows XP SP2 Deployment to client desktops using SMS 2003.
• Lodging service requests with vendors like HP, Compaq, and Toshiba, Dell etc.
• Resolving email problems in MS Outlook.
• Ensure Inventory and configuration records are kept up-to-date.

Environment: Redhat Linux 3.0/4.0, Sendmail, windows servers, SMS 2003