SUMMARY

• Over 8 years of experience specialized in System Administration working on Red hat Linux, Solaris, SUSE Linux, AIX, and Windows environments.
• Experience in administering Solaris & Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux.
• Experience in Installing, upgrading and configuring Red Hat Linux 3.x, 4.x, 5.x6.xusing Kick start Servers and Interactive Installation.
• Experience in Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience with VERITAS Volume Manager (VxVM), VERITAS File System (VxFS), VERITAS Net Backup, VERITAS Clustering with SAN, NAS environment.
• Experience in installing, configuring and implementing the RAID technologies using various tools like VxVM and Solaris volume manager.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hatLinux.
• Installation and up gradation of Packages and Patches configuration mgmt., version control, service pack. & reviewing connectivity issue regarding security problem.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, send mail, ftp, remote access, Puppet, security management and Security trouble shooting skills.
• Experience on Webservers such asplanet Webserver 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x,4.x,5.x & Apache Server 1.x, 2.xand integrating them withWeb logic 10.x servers.
• Experience in administering VMware Infrastructure Client 3.5 and Vsphere 4.0, 5.0, Xen, KVM.
• Installation and configuration of Oracle RAC 11g on Solaris, AIX and Red Hatcluster nodes.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience in Sun Solaris 10(Ldoms, Creation of Zones, Service Management Facilities, Virtualization, Container based).
• Experience working in SAN environment like EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Experience on Blade logic automation tool used to upgrade operating system and Provisioning for newly build servers.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Install and maintain TNG Unicenter large number UNIX and windows enterprise systems.
• Experience supporting 24x7 production computing environments. Experience providing on - call and weekendsupport.

TECHNICAL SKILLS

Operating Systems: Sun Solaris 10, 9, 8, Red Hat Linux (4.X, 5.X. 6.X) ES & AS, HP-UX, IBM-AIX, Windows 2003/XP/2000

Hardware: Sun Ultra Enterprise Servers (E3500, E4500, E450, E420R, E250,Sun Fire (6800/4800/3800/ v880/v480/v210/v440/280R/15K/25K), Sun Workstations (Ultra 5, 10,20,Blade 100,150,2000), IBM X-series and P-series, IBM RS6000, Sun Storage Array D1000,A5000. HP Proliant

Software: VERITAS File System, VERITAS Volume Manager, Solaris Volume Manage, Solistice Disk Suite 4.x.

Tape Hardware: Storage tek tape libraries L40, L80, L180, L700, Sl500, Sl850, DAT & DLT, STK 9940B, 9840B, LTOs

Cluster: VERITAS Cluster Server, Red Hat Cluster Server

Web/Application Server: Tomcat, Apache, IBM RSA/WAS, Web Logic

Scripting Languages: Born, Bash, KSH & Perl

Database: Oracle, DB2/UDB, AS/400, Sybase

Languages: C ++, Java, VB 6.0, XML, HTML, Perl, Shell Scripting

ERP: SAP R/3, PeopleSoft, Siebel

PROFESSIONAL EXPERIENCE

Confidential, Dallas TX

UNIX/Linux Admin and Support

Responsibilities:

• Installing and configuring SUN Solaris 10 on Sun Servers using jumpstart and Red Hat Linux 5.x using kick start installation.
• Use Blade logic Configuration Manager to upgrade Solaris and Linux operating Systems as well as update firmware, HBA, EMCpower and Banktools through Bladelogic.
• Written NSH script in Bladelogic to create Falr image and Tar file backups for Solaris and Linux Servers.
• Use Bladelogic Provisioning Manager to build new Solaris and Linux Servers.
• Performed patching and OS upgrades (rebuilds) and associate hardware break/fix, triage and software Installations related to the patching and OS upgrade activities.
• Provisioned and build CHP (compute host platform) Red hat Linux 6.1 virtual machines, these servers based cloud computing.
• Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T2000 Servers with SUN ZFS.
• Provided day to day build support in an environment consisting of thousands of Solaris, Linux and AIX servers for a 24x7 demanding trading division with emphasis on responsiveness and project ownership.
• Provided rotational on call responsibilities to support issues that arises as the result of patching, upgrades or server rebuilds performed by the team.
• Work with Engineering groups, Web Commerce Group, to plan, design, scope and implement development projects on pre-production as well as production systems.
• Responsible for automation of key Unix Systems administration tasks such as User admin, scripting, setting up connectivity, backup and automation scripting and keeping system documentation up to date.
• Experience working with Solaris Zones/Containers and new features of Solaris 10, zone reconfiguration and file system layout modification of the containers supporting the Sybase and Oracle database.
• Installed and upgrade HBA Drivers, Firmware, Power Path and SAN Agents like NAVIAGENT, NAVICLI and NAVISCLI for EMC SAN storage.
• Installed Hadoop on Red hat Cluster servers.
• Setup Hadoop Distributed File System (HDFS) for high-throughput access to application data.
• Worked on Openstack (Ginger), creating servers, security groups, assigning resources.
• Worked on puppet which includes writing modules, manifests and pushing new profiles to Puppet.
• Worked on weekly decommission process on enterprise wide servers in based on request from customers, take all necessary due diligence before shutting the servers.
• Worked and performed data-center operations including rack mounting, cabling.
• Communication with customers, data center personals and Vendors on decommissioned based servers.
• Attended team meetings, change control meetings to update installation progress, and for upcoming change in environment.
• Documented installation procedures, changes required in present environment and Provide server remediation to ensure all vulnerabilities have been addressed.

Environment: Red-Hat Linux Enterprise servers (HP ProLiant DL 585, BL 465/485,ML Series All IBM X-series), Solaris 8,9,10, (Sun T2000,V490, V890,M5000etc..),AIX 5.3, 6.1,(All IBM P-series) SAN(Netapp), Blade Logic, VERITAS Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 5.5, VMware Infrastructure 5 and 6.

Confidential, Hillsboro, OR

Sr Linux/Unix Administrator

Responsibilities:

• Administration of RHEL4.x, 5.x which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 4.0 and migrating servers between ESX hosts, Xen servers.
• Installing Red Hat Linux using kicks tart and applying security polices for hardening the server based on the company policies.
• Installed, manually configured Sun machines throughjumpstart installation on Sun Fire and Enterprise servers. Installed, configured Zones, LDOMsin Sun Solaris 10.
• Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, Power 5 systems and Upgraded Maintenance level as well.
• Installed and verified that all AIX/Linux patches or updates are applied to the servers.
• Configured HACMP 4.5 to monitor, detect and react to failure events, allowing the system to stay available during random, unexpected software problems and also configured to react to hundreds of system events.
• Installing, administering Redhat using Xen, KVM based hypervisors.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Installed, configured, and maintained Weblogic10.x and Oracle10g on Solaris & Redhat Linux.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostatetc) and tuned I/O, memory, etc.
• Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL465CG5 blade centers).
• Supporting 24x7 production computing environments and providing on-call and weekendsupport.

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), Blade Logic, 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.

Confidential, Burlingame,CA

UNIX Administrator/Application Support

Responsibilities:

• Configured kickstartserver and updating/applying patches to the servers using Redhat Satellite server.
• Plan, design, Implementing, Installation and configuration Operating System Installation and upgrade on Red Hat Linux 4,5 & Solaris a 10.x on & HP-Dl585, DELL DRAC and VMware.
• Configured Kick Start Server and build severs using kick-start server.
• Build Yum repository Server for Development team to upload packages.
• Written UNIX Shell scripts for monitoring & clean up old files.
• Creating and deleting and managing user accounts and managing user quotas on the Network.
• Installed LDAP server and configured it to Centreon & Nagios monitoring tool.
• Administration/Configuration of Print Servers/Clients in the Network, planning, configuration and maintenance of connectivity for servers as well TCP/IP configuration.
• Network trouble-shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop'.
• Experience in Developing KORN, BASH, PERL, Python shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Involved in Implementation of Oracle RAC and ORACLE ASM.
• Administration and Troubleshooting Redhat servers running business critical application &Web Logic applications.
• Installation of web logic, upgraded to service pack updates, installed. BEA patches, configuring and creation new domain, start and stop web logic server.
• Production support of Apache, Apache HTTPD,JBoss, Tomcat including installation, configuration, management and troubleshooting.
• Configure and maintain Windows 2000 Server that runs DNS, DHCP and active directory services.
• Formatted raw disks& partitioned them using the fdisk utility. Created file system using newfs and mounted it.
• Configuring of nodes, Virtual IP, Private and Public network for Oracle RAC.
• Utilized Linux Terminal Server for removing fat client management, save on administration Provide users with a more reliable & secure environment.
• Disk and File system management through VERITAS Volume Manager&Solstice Disk Suite on Solaris, Logical Volume Manager in HP-UX.
• Implementation of numerous VMware ESX virtual machines (2.5.x and 3.0).
• Experience in creating Groups, Resources, Setting the resource properties and making Resource Online on MS Cluster Service.
• Worked in configuring and setup connectivity between web servers, database servers and directory servers as a process server administrator.

Environment: Solaris 8,9,10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, Sun Fire V440/880, DMX 3 & DMX4, Site minder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential, Sunnyvale CA

UNIX Administrator

Responsibilities:

• Installed RHEL 3.0/4.0 using kicks tart and custom building the servers per SOW.
• Installed/configured EMC Storagewith 0, 1& 5 RAID configurations.
• Installed and maintained Security issues.
• Installed VERITAS Volume Manager, VCS Cluster Server for failover and for mirroring and raid level configurations on EMC storage frames.
• Supported back office systems environments.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Creation & Maintenance of user accounts & passwords & profiles, home directories, initialization of files, groups’ creation and management, setting file permissions, customizing shell environment setup for users.
• Additional responsibilities include schedule and administration of server backups, setup and administration of network and MS mail accounts.
• Maintaining production critical servers running Solaris UNIX, Linux supporting Oracle database and Web services. Providing 24x7 supports.
• Worked efficiently using Veritas NetBackup on development and production servers for backups and restores.
• Created LVMs on Linux servers.
• Writing Shell Scripts for managing day-to-day transactions & for automation of routine tasks.

Environment: SUN Servers (6500, 4500, 420, Ultra 2 Servers), Solaris 2.6/2.7/8, Veritas NetBackup, Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.

Confidential

Systems Administrator

Responsibilities:

• Installation, Configuration, up gradation and administration of Sun Solaris, Red Hat Linux.
• User account management and support.
• Jumpstart &Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPsec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Responsible for configuring and managing Squid server in Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using Solstice Disk suite.
• Involved in Installing and configuring of NFS.
• Worked on Solaris volume manager to create file systems as per user and database requirements.
• Trouble shooting the system and end user issues.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and probable errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues that have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.