SUMMARY

• Around 8+ Years of experience as a System administrator in the areas of Sun Solaris, RedHat Linux, IBM AIX, HP - UX and Windows environment.
• Experienced in the installation, support, configuration and maintenance of Sun Solaris, RedHat Linux, IBM AIX, HP-UX and Windows 2003/2008 under heterogeneous environments.
• Installing, configuring and maintaining the VMware ESX3.x/4.x/5.x, Virtual Center 2.xservers.
• Installing, upgrading Solaris 8, 9, 10 on Sun Servers Using Jumpstart, Flash Archives.
• Experience in Server build using Jumpstart, Ignite and kickstart Process on multiple servers.
• Installation of patches, Security fixes, packages on Linux, Solaris, AIX and Windows NT/2000 Servers.
• Experience in installing, administering, troubleshooting NFS, DNS, DHCP, NIS, NIS+, LDAP Mail Server and Samba Server in heterogeneous environment.
• Experience in Logical Volume Manager for creation of Volume groups / Logical Volumes and File systems in UNIX environment.
• Creation of Volumes, Plexes and the volume management using Veritas Volume manager and disk suit.
• Experienced with the installation, configuration of RAID 0/1/5 volume management using Veritas Volume Manager and Solaris Volume Manager on Solaris.
• Experience in Solaris Zones/Containers.
• Extensive experience in configuring Global File System(GFS) and Zeta byte File System(ZFS).
• Experience in installing and configuring VERITAS Cluster Server (VCS), Redhat Cluster Server (RHCS),Sun Cluster Server and HP Service Guard for High Availability.
• Strong experience on Webservers such as Netscape Enterprise Server, Tomcat & Apache Server.
• RDBMS installation and support including Oracle, SQL Server, MySQL, and use of SQL in various contexts
• Good knowledge on Troubleshooting and Performance Tuning of Solaris Desktop / Solaris Servers.
• Worked with Storage Area Networks (SAN), of EMC Clariion, EMC Symmetrix, Hitachi data systems. HP EVA, Sun StoreEdge.
• Good Knowledge on shell scripting languages like Bourne shell, Korn, Perl shell.
• Worked with Backup Team to Configure the Master and Client Backup servers Using Veritas Net Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio file system administration.
• Sound understanding of IT Infrastructure Administration with project management skills.
• Experience of working in Data centers with 24X7 Production and On-Call Environments.
• Experience in helpdesk management, desktop pc support & troubleshooting and supervising desktop pc technicians.
• Excellent communication & interpersonal skills. Proven strength in troubleshooting, problem solving, coordination, analysis and a proven track record of success.

TECHNICAL SKILLS

Operating Systems: SunSolaris 7,8,9 & 10 Linux (RedHat 3.x,4.x,5.x, SUSE 10), HPUX 10.20,11.11,11.23, 11.31,AIX, Windows,VMware ESX 3.x,4.x,5.x.

Hardware: Sun Ultra Enterprise Servers (E3500, E4500, E450,E420R,E250,Sun Fire (6800/4800/3800/ v880/v480/v210/v440/280R/15K/25K), TSeries, MSeries, IBM F-series and P-series, IBM RS6000, DELL Poweredge 1650,2850,2950,6400. HP DL320,DL360,DL380, DL580 (G5,G6), IBM/Dell Blade Servers

Tools: Solstice Disk Suite, VERITAS Volume Manager,OpenMigrator,Rsync, VERITAS Net backup 5.1, TSM 5.5, Redhat Cluster Server 2.0, Veritas Cluster server 3.5 & 4.1, SunCluster 2.x & 3.x,Nagios

Programming Languages: C,C++, Java, JavaScript, HTML, KSH, CSH, Bash, and Perl programming.

RDBMS: Sybase, Oracle 7.x/8.0/9i, MySQL, MS SQL Server.

Networks: NIS, NFS&DNS and Firewalls.

Protocols: TCP/IP, FTP, SSH, SFTP, SCP, SSL, ARP, DHCP, TFTP, RARP.

Storages: EMCSymmetrix/Clarriion, Sun Storage Array D1000,A5000,Hitachi arrays, HP EVA.

PROFESSIONAL EXPERIENCE

Confidential, Atlanta GA

Linux /Unix System Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 3/4/5/6, Cent OS 5.8, Windows 2008 operating systems.
• Configured and installed Solaris and Redhat Linux Servers using jumpstart, Ignite, and Kickstart.
• Remote monitoring and management of server hardware.
• Installed and upgraded VMware vSphere ESXi / 5.5/5.1/4.1/4.0.
• Updated and upgraded the ESX/ESXi servers using vCenter update manager.
• Installation and administration of DNS, NIS & DHCP servers.
• Implementing and Maintaining Apache web server with HTTPS.
• Configured all the services including NFS, FTP, Web servers, samba server.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using ps, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Worked on Firewall implementation & Load balancer between various Windows servers.
• Configured IIS on Windows 2008 Servers.
• Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in Linux.
• Installed Worked on upgrading and patching for Linux & Windows Servers.
• HP Openview Agent on Windows & Linux Servers.
• Ability to write Shell & Perl scripting.
• Troubleshooting and configuration of Local and Network based printers.
• User, Group Administration and Advanced File Permissions.
• Maintain security for the networked environment while allowing users to access all data and software remotely.
• Worked with various vendors for setting up the testing-lab.
• Analyze, troubleshooting, and resolve RedHat Linux and Server HW, Network problems in a Production Server environment.
• Experience working with production and 24 x 7 on call environments.

Environment: RHEL 6.x/5.x, Cent OS 5.8, Apache 1.2/1.3/2.x, Logical Volume Manager, Veritas netbackup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 3.x/2.x

Confidential, Minneapolis

Linux /Unix System Administrator

Responsibilities:

• Installation and configuring of SUN Solaris, HP-UX and RedHat Linux servers.
• Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers using Jumpstart and Linux using kickstart installation, also SUSE Linux Servers manually and using SystemImager and updated using YUM and worked on upgrading and configuring SGI Servers.
• Created Virtual server on VMWare ESX/ESXi based host and installed operating system on Guest Servers.
• Experience in installation, configuration, implementation, support and trouble shooting of IIS 5.x/6.x in production and non-production environments.
• Configuring NFS, NIS, NIS+, DNS and LDAP.
• Updating YUM Repository and Redhat Package Manager (RPM).
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS+, RPM and Samba Web servers on Sun Solaris, Linux platforms, AIX Server and IBM Tivoli for Load Balancing.
• Experience in installation, configuration and administration of Web Logic and Web sphere Servers.
• Configured SAMBA to get access of Linux shared resources from Windows.
• Involved in deploying Solaris Containers/Zones, SMF and ZFS.
• Managed resources for zones using Solaris 10 container technology.
• Worked in ZFS and QFS and fixed the problems occurred, set the quota and reservations for such file systems.
• Applying new patches and packages of Solaris and RedHat Linux.
• Installation and monitoring of Veritas Volume Manager, Veritas Net Backup and Sun Cluster Server in SAN Environment.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.
• Implementation of RAID techniques and the creation of Disk groups and volumes, plex using Veritas Volume manager.
• Trouble shooted various problems when working with VxVM in initializing, replacing, mirroring, encapsulating and removing disk devices.
• Created and maintained large file systems with DMX storage devices using VxVM.
• Experience in implementing High Availability Clusters using Veritas Clustering, HP Service Guard, Redhat Cluster Server.
• Worked on registering different client servers to master Redhat Satellite Server.
• Experience in providing day-to-day user administration like adding/deleting users and managing user’s queries and maintained Server using Cfengine.
• Worked with and assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.
• Administer the Network issues and Resolving Operating Systems related issues of laris, AIX, Linux and making sure that the users get the proper environment for testing.
• Plan and implement assigned projects, change management, on-call support, and hotline bridge participation.
• Creating Database users, roles, profiles, alert logs/ trace logs on Oracle Database application boxes and worked on RAC.
• Troubleshooting and analysis of hardware and software failures for various Solaris servers (core dump and log file analysis).

Environment: RedhatLinux 4.x, 5.x,Solaris 10/9/8,HPUX-11.x,10.x,AIX 5.x, SUN E6800, E25K, E4800,V240, V440, V480,V880, E450, E4500, E6500, E6800,, E15K), Blade Servers, Oracle 10g,Veritas Volume Manager, Apache, VMware, VeritasNetbackup, Sun Cluster in SAN Environment.

Confidential

System Administrator

Responsibilities:

• Installing, configuring and upgrading SUN Solarison Sun Servers using jump start platform.
• Installed and configured Solaris, HP-UX,Linux and Windowsoperating systems.
• Installed, configure, support, and maintain UNIX system and application software on multiple platforms.
• Installation, Configuration of Web Servers using Apache, IIS on Solaris and NT Servers.
• Installation, configuration and administration of the DNSandDHCP servers.
• Installed and Configured Tomcat/Apache on various Development and Production Boxes.
• Providing day-to-day user administration like adding or deleting users, password aging, etc.
• Installation, Configuration of Web Servers using Apache, IIS on Solaris and NT Servers.
• UNIX System Administration. Fine tuning, Kernel debugging, process scheduling, disk and file system I/O, kernel internals, TCP/IP communications.
• Regular disk management like adding / replacing hard 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.
• Installation & Configuration of Logical Volume Manager - LVM andVeritas Volume Manager on Sun Solaris and RedHat Linux Hardware.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Maintained Volumes and File systems usingVxVM / VxFSfor Oracle.
• Used VxVM to add disk, create new disk groups/volumes, resize, deport and import disk groups between servers.
• Installation and configuration of Apache, SSL, SSH, PHP, Perl on SUN Solaris.
• Installing, configuring and administering NIS master server and NIS slave server.
• Configuring and troubleshooting SAMBA server in Solaris.
• Managing Users/Groups, local and NFS file system needs for the applications using the TCP/IP applications such as Telnet, FTP, and R logins.

Environment: Sun Ultra E 4800/3000/450/250, Sun Fire 4800/3800, HP-9000, RS-6000, SUN Solaris, Linux, Intel/SPARC Servers,HP-UX,Windows98, 2000 operating systems,Veritas Volume Manager, LAN and WAN.