SUMMARY

• Over 7 years of experience in UNIX (LINUX, SOLARIS, AIX and Confidential - UX) and windows Systems Administration.
• Expertise in System Administration, Installation, Configuration, troubleshooting and Performance tuning of Sun Solaris, Red Hat Enterprise Linux & Windows Servers, and working knowledge of AIX.
• Experience with build using Jumpstart, Flash archive & Kick start Installations.
• 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.
• Develop and implement virtualization infrastructure, utilizing the VMware Infrastructure environment, VMware ESX Server, Virtual center deployment, Consolidated Backups, P2V, V2V conversions & troubleshooting.
• Experience in installing, configuring and maintaining Web Sphere Application Server.
• Expertise in package management using Red hat RPM. Used RPM in several Linux distributions such as Red hat Enterprise Linux, SUSE Linux Enterprises and Fedora.
• Experience in installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server.
• Experienced in automation of tasks using schedulers and scripting using Perl and UNIX Shell Scripting in UNIX environment.
• Resolution of technical issues on system integration and support. Software package deployment, disaster recovery/contingency of business management.
• Created zones both Local and Global using Solaris 10 container technology and modified local zone parameters.
• Experience in installation and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, VSFTP, SMTP, SQUID, and Active Directory.
• Experience in installing, configuring and providing support to web application servers such as Apache Tomcat and exposure to Weblogic and Websphere servers.
• Experience working with DHCP/LDAP/NIS/NFS services.
• Experience supporting 24x7 production, testing and development environment.
• Experience in set up and administration of Sun Enterprise, Sun Fire servers, IBM x-series.
• Support enterprise Storage Area Networks (SAN), and Tape Backup/Restore technology in a mission critical environment.
• Experience in installing and configuring Oracle RAC database on Linux servers.
• Provisioning storage towards the databases as required.
• Exposure to database administration and performance tuning techniques.
• Managed Linux (open SuSE) server farms integrated to databases via Storage Area networks.
• Extensive experience in creating new file systems, mounting files systems and un-mounting file systems, usage and load of the system & performance monitoring.
• Experience in implementing RAID for redundancy.
• Experienced in creating and maintaining users, profile, security rights, disk space and process monitoring.

TECHNICAL SKILLS

Operating Systems: Solaris 8/9/10, Red Hat 3/4/5, SUSE, Windows NT/200/2003/XP/vista, IBM AIX 5.X, Confidential UX 11.X .

Programming: C/C++/Java.

Protocols: TCP/IP,UDP,SMTP,SNMP,ICMP,FTP,TELNET.

Scripting: Unix Shell, Perl, VB Scripting.

SAN/NAS: EMC Clarion CX -300/400/600 Storage arrays, SUN StorEdge T3, EMC Powerpath, SAN Copy, EMC Control Center 5.x.

Databases: MySQL, Oracle 9i/10g.

Tools: Symantec ESM, NetCool Monitoring tool, BMC Patrol, SNMP, Remedy ticketing systems, Virtual Tech.

Services: DNS, Apache, LDAP, NIS, NFS, Samba, Tomcat, SMTP & POP3, IIS 5.0, Active Directory.

Security: Security Hardening, TCP Wrappers, Sudo setup, SELinux, GPG, Tripwire

Application Server: Weblogic Server, Websphere Server

Remote Admin Tools: VNC Server, Tight VNC, RDI and Putty

Virtualization: VMware ESX Server 2.5/3.0.1, VMware Virtual Centre 1.2/2.0

Volume & Disk Mgmt: RAID, LVM, SVM, VERITAS Volume Manager 4.x, VERITAS File System 4.x.

Cluster Services: VERITAS Clusters, Sun Clusters.

Hardware: Sun Fire 280R/V 480/4800/3800/10 K/12K/25K Server, T2xxx, T5xxx, Sun Enterprise 2000, 3000, 40000 4500/6500, E10K series server, SunBlade 6000, Confidential -9000 K,L,N series, Confidential 9000, rp3440/rp7440/rp 8440 Server, Superdome, IBM RS/ / M80 / H70 / H50, IBM xSeries 335/336/345/346 Server and pSeries 590/610//660/670, IBM/ Confidential /DELL Blade Servers

PROFESSIONAL EXPERIENCE

Confidential, Houston, TX

Sr. Unix Systems Administrator

Responsibilities:

• Supporting the infrastructure comprising up to 5000+ Unix/Linux/Aix server environments for continued monitoring on critical files and baseline settings.
• Implemented ESM policies and help clients in remediating the servers for any issues rose with respect to ESM.
• Working as a Systems Administrator and Linux Systems Engineer III, supporting and maintaining UNIX servers running (LINUX, Solaris and AIX) in a distributed environment.
• Working on OS and hardware break-fix, and also providing 24/7 on-call support.
• Performed remote installation using Jumpstart and Kick-start Installations.
• Veritas Cluster Services configuration on client Network Hosts.
• These hosts are mostly production databases running Oracle 10g Enterprise.
• RHEL, Sun Solaris post installation configuration and support.
• Implemented satellite server for Kick-start installation for O/S and applications.
• Administered enterprise level backup and recovery in multiple data zone of heterogeneous high-end servers running Linux LVM and VERITAS Net Backup for Solaris boxes.
• Working with VERITAS Volume Manager (VxVM) for creating volumes and file systems for various applications and databases.
• Perform daily maintenance routines on SUN servers, monitoring system access, managing file space and tuning the system for optimum performance.
• Responsible for migration of the servers and data across data centers as well as upgrading the system software as per the requirements.
• Extensively worked on Solaris 10 container technology, created non global zones, modified local zone parameters, created file systems on local and global zones.
• Handling all NFS, Auto Mount, DNS, LDAP related issues.
• Allocation and management of Storage resources connected to various servers over SAN environment.
• Installed and Configured Oracle RAC on UNIX, Linux and Windows Platform.
• Coordinating with system, Network and Database administrators to troubleshoot various issues during implementation.
• Installed and configured Apache TomCat Web server to host web applications, exposure to procedures involved in deploying web applications such as servlets etc.
• Installing and upgrading the packages and patches for Red-hat, Solaris and SuSE hosts.
• Configuration/troubleshooting of multi-paths on Solaris and bonding on Linux Servers.
• Involved in the yearly maintenance patching for both SAN and NAS connected Linux servers.
• Performed scheduling jobs using Cron and ‘at’ jobs.
• Tasks Automation using Bash & Perl Scripts.
• 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.
• Troubleshooting Unix/Linux network and security related issues.
• Solving various system related issues: such as high load-average, reduction of waiting i/o percentage.

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, Mountain View, CA

Sr.Unix/Linux Administrator

Responsibilities:

• Managing Unix Infrastructure of the bank, involving maintenance of the servers and troubleshooting problems in the environment.
• Planning and implementing the configuration changes to the servers adhering with ITIL change management process.
• Installation, configuration of new Solaris 10, Red-Hat AS4 (Jump start /Kick start Installations) for different projects.
• Writing Shell/Perl Scripts for managing day-to-day transactions & for automation of routine tasks.
• Used VERITAS Cluster Server to eliminate both planned and unplanned downtime.
• Performing Sun baseline patching and kernel upgrades.
• Served as subject matter expert for different business accounts running UNIX AIX or Confidential -UX operating systems.
• Adding packages & patches for Solaris and Red-Hat servers based on the requirements.
• Worked efficiently using VERITAS Net Backup 5.0 on development and production servers for backups and restores.
• Established procedure for daily, weekly, monthly backups, tape rotation and offsite storage
• Worked with Virtualization Technologies: VMware & XEN.
• Worked on EMC DMX3000, Symm8830 Disk libraries, Clariion CX 700 SAN.
• Working with VERITAS Volume Manager for creating volumes and file systems for various applications and oracle databases.
• Troubleshooting various problems related to VERITAS Volume Manager (VxVM) in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Monitoring the System activity, Performance, Resource utilization.
• Daily Linux troubleshooting related to issues with LDAP, Apache, DNS and q-mail platform.
• Dynamic reconfiguration of tape drives to the server for ensuring quick and consistent backups.
• Supported Unix/Linux servers running Oracle and My SQL databases.
• As part of System Engineering, I am responsible for maintenance Raid-Groups, LUN Assignments as per agreed design documents.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Configured and administered Apache Web and VSFTPD services.
• Build and configuration of new servers for different application development projects.
• Testing and upgrading production, development and test Linux and Solaris servers.

Environment: Sun Fire 25K & 15K, T2000, V 490/890/440/240, Solaris 10/8, SUSE 9, Red-Hat AS4, Web Sphere, Apache, VERITAS Net Backup 5.0, VERITAS Volume Manager, VERITAS Cluster server (VCS),RHEL, Samba, NFS, NIS, LVM, Bash, NAS, LDAP, DNS, Apache, MySQL, Oracle, VMware, Xen, Shell Programming, SAN, EMC DMX3000, EMC Clariion CS 700,NetApp VTL 600, Windows 2003.

Confidential, MEMPHIS, TN

Systems Engineer

Responsibilities:

• Installed, configured & handled troubleshooting of Solaris 8/9/10 and Red-Hat 3/4 on Sun Enterprise Servers and AIX on IBM Blade Servers.
• Set up the Domain Name System by configuring the DNS primary, secondary and DNS Clients and configured the database files.
• Maintained High availability Clusters over AIX servers using HACMP.
• Administered the Network of 400 UNIX Users using Shell Scripts.
• Monitored the Network and System Performance through vmstat, iostat, grapher tool.
• Configured backup and restoration of data from tape in Dump and Tar format using Shell Scripts.
• Implemented backup strategies based on the company policy using Shell Scripts.
• Recovered data from server after a ROOT file system crash.
• Created and added Swap Space at runtime.
• Part of team for Installation and configuration of DB2.
• Configured additional storage devices, partitioned hard disk based on the project requirement.
• Installed several security packages like SNORT, tcpd, tcp-wrappers & ASSET.
• Implemented security in systems and network for all Sun Enterprise Servers & Desktop Servers.
• Handled Day-to-Day operation of all servers running Production jobs, Backups, Restores and Report generations.
• Worked with heterogeneous Client & Server management.
• Backed up and restored data from tape in ufsdump, tar, cpio & dd format.
• Configured the Send Mail configuration file, created e-mail ids, created alias database.
• Handled troubleshooting the configuration file, configured the Boot file for the Domain Name Server to boot, configured and updated the Zone database.
• Installed various software packages such as tcpd, ipfilter and patching the appropriate software.
• Planned for storage and backup including studying the disk space requirement and backup device performance.
• Tested and implemented various types of software for backup.
• Used heterogeneous backup software for Windows and UNIX to backup and retrieve file systems without loss of data.

Environment: Sun Fire 4800, 3800, V880, V440, V490/890/240,RHEL, IBM Blade Servers HS20/LS20, IBM xSeries 335/336/345/346/365, Compaq, Red-Hat Linux 3/4, Solaris 8/9/10, Oracle 9i/10g, Bash, SNORT, NAS, Send mail, DB2, VERITAS Net Backup, VERITAS Volume Manager 3.0, EMC SAN.