Summary:

• Experience as Unix system administrator which incorporates implementation, administration and Application-product support with expertise in Solaris 8, 9 and 10, Linux Red hat RHEL 3/4/5 and SUSE 10.3/11.1 , HP-UX 10.x, 11.x , AIX 5.x, and Windows NT/2000/2003 in heterogeneous environments.
• Expertise in configuring and administering NIS, NIS , NFS, DNS, LDAP, DHCP, Mail Servers and web servers like Apache HTTP Tomcat in heterogeneous environments.
• Excellent Experience in installation, configuration and Volume/Disk management using VERITAS Volume Manager VXVM , Solaris Volume Manager SVM and VERITAS File System VxFs in Solaris and Logical Volume manager LVM in Linux and HP-UX.
• Extensive Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server VCS , configure VVR, Sun Cluster in Solaris and HP Service Guard in HP-UX.
• Installed, configured and managed Redhat Cluster Suite in Linux Servers
• Extensively Worked on Solaris 10 container technology, created zones and installed applications on individual zones. Responsible for configuring and maintaining global and local zones.
• Proficiency in Zones/Containers and LDOMS in Solaris, creating Global and Non-Global zones, modified zone parameters and creating file systems on Global and Non-Global Zones.
• Performed configuration and managing Zeta byte File System ZFS in Solaris and Global File System GFS in Linux servers.
• Extensively involved in configuring administering Net Backup clients, SAN Devices, EMC Storage.
• Experience in VMware. Installed and monitored Virtual environments with ESX/ESXi servers and VirtualCenter4.X.
• Extensive experience in Unix Performance monitoring and kernel tuning and Load balancing.
• Good Experience in reviewing system log files for errors. Setting up CRON jobs for backups and monitoring process.
• Involved in large Data Center Migration planning, designing, moving servers to new data center, coordinating and troubleshooting issues for P2P, V2V and P2V environments.
• Implemented and enhanced UNIX shell scripts using Korn, Shell, Bash and Perl Scripting.
• Involved in Capacity planning, Performance analysis, Uptime Response time analysis.
• Performed Planning and implementing Migrations on Solaris, HP-Unix and Linux servers.
• Experience on working oracle real Application cluster RAC database, which provides highly available database solutions.
• Devise strategies for Disaster Recovery Management, including planning and designing servers for back up, recovery and archival of server / database information.
• Excellent Presentation, customer support and troubleshooting skills.
• Self-motivated team player with excellent interpersonal and communication skills.

Skills:

• Operating systems: Solaris 10/9/8, HP-UX 11.00, 11.11, 11.23, 11.31 , IBM AIX 5.1, 5.3 , Red Hat Linux RHEL 3/4/5 , Windows NT /2003/vista.
• Server Hardware: Excellent Hardware skills on Sun Fire V100/V120/V240/V440/V480/V490 /V1280/V880/ V890, Sun Enterprise 250/220R/420R/2900, HP Proliant DL585/360/385/585 G2, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, T-Series, M-Series, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers
• Storage Hardware: Symmetrix DMX 800/1000 / DMX-2 / DMX-3 EMC CLARiiON FC and CX series, FC JBOD, Brocade FC Switches, Net App Filers, Qlogic and Emulex FC HBAs, Brocade silk worm 3200, 3800,48k, iSCSI/ FC Storage arrays, RAID Storage arrays, DLT and LTO Tape Libraries
• Cluster: Veritas Cluster 4.x, 5.x, SunCluster 3.x, Redhatcluster, HC Service Guard, VMware ESX Technologies. Web/Application Server: Tomcat, Apache, WebSphere, Weblogic.
• Languages: C, ClearCase, Shell scripting Ksh Bourn Shell,
• Networking Services: NIS, NFS, AutoFS, DNS, and Dhcp
• Virtualization Products: VMware VI 4.x, VCenter Server, VMware Server, Xen, Solaris Zones.

Experience:

Confidential

Linux Stability Support L2 A

Responsibilities:

• Assisting with Hardware replacements on IBM SChassis, EChassis Blade centers, IBM System X3650, M3 and M4. Setup AMM and IMM for remote management.
• Configuring Cisco 2950 catalyst, for private networks which run backups and Disaster recovery.
• Responsible for Installation, Configuration Management, Maintenance and Systems Development of Linux Systems.
• Experience in installing WINDOWS 2008 Servers as HVM guests using Xen on SLES 11. Played a crucial role in migrating physical 2003 and 2008 servers to virtual.
• Production Support for SUSE Xen, Pacemaker and DRBD clusters. Suse Linux Enterprise servers and IBM Hardware, VMWare.
• Working with new cluster builds, adding resources to clusters for virtual guests, storage devices for HA.
• Troubleshoot issues with virtual and physical networks, pertaining to OS and Hypervisor.
• OS upgrades for SLES 10 and SLES 11 in virtual and physical servers. Troubleshoot issues with repositories and driver compatibilities during upgrades.
• Adding storage and creating raw devices in Linux servers, presenting to databases like Informix, and Oracle.
• Encrypting required file systems and raw devices in Linux, with Vormetric encryption software, register and Unregister to the Appliances for encryption and decryption.
• Troubleshooting issues with system boot up, rescue and restore required configurations files, assisting with DR procedures for Windows and Linux vm's running on Suse Xen.
• Resolving Split Brain issues with DRBD ensuring data security, and enabling data replication.
• Configuring STONITH in Pacemaker Clusters and adding resource monitors to trigger STONITH.
• Converted Aix to Linux for international Walmart properties.
• UNIX / Linux: Installation of Multi Router Traffic Grapher to monitor network impact of test machines and Bind DNS service.
• Assisted Field Tech to install new M4 servers, decommission old Equipment, migration and installation of servers.
• UNIX/Linux User ID Administration.
• Responsible for Configuring VLANs on IBM Blade center, Nortel Switches, and CISCO switches.
• Host based migration and replication with Linux / Aix.
• Migration with internal and external disk. Network based file and block migrations.
• Migrated data between different storage arrays, Migrate data between internal and external storage disk.
• Monitoring of IBM AIX and Linux like Generating Daily Health Checkup report physically or internally using du, df, top, dmesg, who, free.
• Monitoring of All UNIX/Linux flavor like AIX, Linux.
• Generating Scripts for automation in OS upgrades on multiple platforms. Queries to collect bulk information in the environment.

Environment : Linux RHEL 5,SUSE 10/11, Solaris 8/9/10, HP-UX 11/11i, AIX 5.3L, Sun Enterprise Server, SunFire 6800/ E6500/ E4500 E3500, SunSparc1000, Sun V440, V490, TSeries, MSeries, HP-9000, rx8640, K, L, N Class Server, HP DL380,580,IBM RS/6000, Veritas Cluster Server , Shell Scripting Korne Bourne , Sendmail Protocol, Apache Weblogic Server , DLT 7000 tape drive, Superdome blade servers, Windows 2000 / 2003, SAN / EMC.

Confidential

Unix/Linux System Administrator

Responsibilities:

• Installing Configuration and maintenance of Solaris 8/9/10, Redhat Linux 4/5, SUSE 10.3, 11.1, HP-UX 11.x and IBM AIX operating systems.
• Worked on configurations and installations Solaris and Linux servers using Custom Jumpstart, and Kick start.
• Configured System imager for Linux Servers and used it for Cloning, software distribution and OS updates and performed installations using pxeboot, on hundreds of Linux Servers
• Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.
• Installed, Configured and maintenance of DNS servers, DHCP Servers, Mail Servers, FTP servers, NIS, Samba and web servers.
• Implementing RAID 0, 1 and 0 1 levels using Veritas Volume Manager.
• Installed and configured VERITAS Volume Manager VxVM , Disk and file system management through Veritas Volume Manager, Solaris Volume Manager and Solstice Disk Suite on Solaris and using Logical Volume Manager LVM for other flavors of UNIX.
• Planning, documenting and supporting high availability, data replication, business persistence, fail-over, fail-back using Veritas Cluster Server in Solaris, Redhat Cluster Server in Linux and HP Service Guard in HP environment.
• Maintained virtual environments using VMware ESX 4.x Server and built various Linux servers on VMware servers.
• Administer, maintain and troubleshoot EMC CLARiiON arrays by creating volumes, LUNs and implementing different RAID levels. Configured and created snapshots of clones of LUNs using EMC Snap View.
• Involved in large data center migration planning, designing, moving servers to new data center, coordinating and troubleshooting issues with various data center, network, application and storage teams
• Installation, Configuration and Administration of Web Logic, WebSphere and Apache Servers in Linux and Solaris Servers.
• Maintaining Remedy environments used for the ticketing system.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Involved in mass migration of data form old EMC Storage subsystems to new Subsystems.
• Working Knowledge on Tivoli Storage manager.

Environment: Linux RHEL4/5,SUSE 10/11, Solaris 8/9/10, HP-UX 11/11i, AIX 5.3L, Sun Enterprise Server, SunFire 6800/ E6500/ E4500 E3500, SunSparc1000, Sun V440, V490, TSeries, MSeries, HP-9000, rx8640, K, L, N Class Server, HP DL380,580,IBM RS/6000, pSeries Server, Veritas Volume Manager , LVM, Veritas File System, Veritas Cluster Server , Shell Scripting Korne Bourne , Sendmail Protocol, Apache Weblogic Server , DLT 7000 tape drive, Superdome blade servers, Windows 2000 / 2003, SAN / EMC.

Confidential

Unix/Linux Administrator

Responsibilities:

• Installation, Configuration Upgrade of Solaris 9/10, Linux AS 4/5 HP-UX 11i, IBM AIX operating systems
• Configuring Solaris, HP-UX and Redhat Linux Servers with Jumpstart, Ignite and kick start respectively.
• Configured and troubleshooting NFS, NIS, NIS , DNS, DHCP, FTP, LDAP, and Samba, Apache servers in Solaris and Linux Servers.
• Worked on installation and configuration and disk and file system management using Veritas Volume Manager VxVM , Veritas Cluster, Solstice Disk Suite in Solaris Servers and Logical Volume Manager LVM .
• Worked on performance tuning in Solaris, Linux, HP-UX
• Performed package and patching management and debugging on all flavors of Unix /Linux
• Expertise in capacity planning and migrations in HP-UX
• Performed documentation of architectural design and build engineering Documents and SOWs
• Created and Managed Zettabyte file system ZFS in Solaris 10, HP-UX and Linux Servers. Created zpools. Exported ZFS from local zones to local zones.
• Experienced in User and Group administration and security issues.
• Performed upgrades of Packages and Patches in Solaris, HP-UX and Linux.
• Worked on automated installations on Linux Servers using SystemImager tool.
• Involved in large Data Center Migration planning, designing, moving servers to new data center, coordinating and troubleshooting issues for P2P, V2V and P2V environments.
• Implemented Virtual Servers in Solaris by using Solaris Zones/Containers, In HP-UX using npars and vpars features, in IBM AIX using AIX VIO/LPAR/WPAR, Installed OS on Virtual Servers
• Backup management and recovery policy using Veritas Net Backup VNB .
• Installed, configured and managed Oracle Real Application Cluster RAC and Oracle Data Guard on Solaris, HP-UX and Linux Servers
• Worked on installation, Configuration and manage Redhat Cluster Suite in Linux Servers
• Installed, Configured and managed Global File System GFS in Linux Servers, Creating and managing Cluster suite using GFS
• Performed installation, configuration, upgrades, Package administration and support for Linux systems on client side using Redhat satellite Network server.
• Experience with configurations and Installations of EMC Symmetrix/ Clariion.
• Worked on SAN, NAS and DAS storages with HBA card configuration and different level of RAID configuration.
• Worked on VMware. Installed and monitored with various virtual environments with ESX 3.x and Virtual Center 2.X
• Expertise in 24/7 Data Center Support

Environment: Solaris 8/9/10, Redhat Linux 4/5, HP-UX 11i, AIX, VMware ESX, Sun Fire 440R Server, Sun Fire V880/890, Sun Enterprise T series servers, SPARC Server 1000, HP 9000 K, L, N-class Server, IBM P series Servers, Veritas Net Backup 6.x, Veritas Volume Manager 5.x