Manager Server
Resume:
Narasimha
Summary:
* ***** ** ** ******** experience as a System Administrator under environment of RedHat Linux (RHEL) 4/5/6, SUSE Linux 10/11, Sun Solaris (8/9/10), IBM AIX, HP-UX(11.x) and Windows 2003/2008 environment.
Managed packages using RPM/YUM on Redhat Linux and maintaining patching on Solaris servers.
Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, LDAP, DNS, NFS, DHCP, FTP, SSH and SAMBA.
Expertise in Installation, Configuration and file system management through VERITAS Volume Manager, VERITAS File System, Solstice Disk Suite and Logical volume Manager (LVM) with multiple RAID Levels.
Experience in Implementing and Supporting High Availability Cluster environments using Sun Cluster, Veritas Cluster and Linux Cluster services.
Experiences in Server build using Kickstart, Jumpstart, NIM and Ignite Process.
File system administration, software RAID solutions using SVM and ZFS on Solaris.
Proficiency in VMWare. Installation and monitoring Virtual environments with ESX 4.x/5.x Servers and Virtual Center.
Creating and Managing user accounts, system security, performance tuning, change management, Documents and procedures.
Experience in compiling and tuning the Linux Kernel on database servers.
Worked on Solaris to Redhat Linux servers migration for various web, application, dns, mail and database servers.
Developed scripts on Korn, C Shell Scripting, SED, and AWK for managing basic administration tasks.
Experience in configuration management tool Puppet and Chef.
Installation and configuration of Oracle server/client with backup and exp/imp dumps.
Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, Firewalls, Intranet.
Installing network Printers and rectifying the Printer problems over the network.
Experience in using Veritas Net Backup, Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio
Expertise in configuring TSM storage manager.
Resolving system errors and crashes, huge file sizes, file system full errors.
Developed shell scripts (Korn, C Shell), Oracle, SQL Server, PL/SQL, PERL and Java Script
Installed and configured the Samba Server and Apache Web Server.
Networking communication skills and protocols such as TCP/IP, Telnet, ftp, SSH, rlogin
Production Support of various applications involving 24/7 on-call rotation.
Problem determination and troubleshooting, Security using SSH.
Skills:
Operating Systems: RedHat Linux 4/5/6, Sun Solaris 8/9/10/11, IBM-AIX 5.x/6.x/7.x, HP-UX11.x, SUSE Linux 10/11, Ubuntu, Windows 2003 & 2008
Hardware: Sun T2000, T5220, T5240, M3000, M5000, Sun Ultra Enterprise Servers (E10K, E25K, E3500, E4500, E450, E420R, E250), Sun Fire (6800/4800/3800/v880 /V480/V240/V210/V440/280R), Dell Power Edge server’s, HP/PA-RISC, HP Proliant server’s, HP DL 380 and 580, HP rp3440, rp4440, rx3600, IBM servers P510, P550, P570.
Tools: VERITAS (Volume manager, NetBackup, Cluster server), VMware (ESx, GSx, Server and Workstation), Redhat Cluster, Veritas Cluster Server
Languages: HTML, Java script, C, C++, Perl, Shell Scripting (Bash, Ksh), Python.
Application Servers: Web Sphere Application Server, Netscape/iPlanet Server, MQSeries, WebLogic Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JVM, JSP, JBoss, Apache/Tomcat
Professional Experience:
IPG Mediabrands, San Francisco, CA Mar 2014 - Till Date
Unix/Linux Administrator
Installation, configuration and upgrade of RHEL6, Solaris 10, HP-UX and IBM AIX 7.1 operating systems
Configured and installed Solaris, HP-UX and Redhat Linux Servers using jumpstart, Ignite and kickstart.
Worked on live upgrades in Solaris servers. Configured and managed Zettabyte File System (ZFS) in Solaris.
Performed Data Backup and Recovery using Veritas Net Backup (VNB).
Installation and configuration of Veritas Volume Manager (VXVM), Veritas file system (VFS).
Performed configuration and troubleshooting of services like NFS, NIS, NIS+, DHCP, FTP, LDAP, Web servers, Samba server, Apache server.
Worked on installing and configuring VMware/Esxi Servers for virtualizations.
Built high-end servers, creating and lo ading images on Linux servers, Solaris, and HP-UX.
Used System Imager tool for server migration for Linux Servers.
Worked on performance tuning in Linux, Solaris & HP-UX.
Patch and Package administration for installation of patches as per company policy and installation of packaged application.
Installed, configured and maintained Red hat Cluster Suite (RHCS), Veritas Cluster Server (VCS) and HP Service Guard in multimode active/active and active/passive configuration. Added and maintained service group/packages. Added/removed node to/from existing cluster set.
Performed package and patching management and debugging in all flavors of Unix& Linux
Troubleshooting and analysis of hardware and failures for various Unix/Linux servers (Core dump and log file analysis)
Implementation of RAID techniques and creation disk groups and volumes, plexes using Veritas Volume Manager. Managing disks and file system using Veritas Volume Manager(VxVM), Solaris Volume Manager (SVM) in Solaris Servers and using Logical Volume Manager
Used configuration management tool puppet to automate server configuration.
Installed, configured and managed Oracle Real Application Cluster (RAC) in Linux, Solaris and HP-UX servers.
Expertise in Global File System (GFS), Creating, configuring and managing clusters in Redhat Linux Servers using GFS.
Performed documentation of architectural design and build engineering Documents and SOWs.
Configured and maintained Network Multi pathing (Bondind/IPMP) in Linux and Solaris.
Planned and implemented migrations from lower end to higher end in OS level and Hardware level in Solaris, HP-UX and Linux servers.
RPM package administration using RPM Build.
Knowledge of DAS, NAS and SAN concepts and technology. Also got knowledge in HA, Clustering, LAN, free Backup, Server Free Backup, and Disk-to-Disk Backup.
Configured and managed Red hat satellite Network server, performing package management tasks and errata updates.
Responsible for setting up a disaster recovery plan for the servers, which includes in development of programs for synchronized backups.
Environment: RHEL 5.x/6.x, Solaris 9/10, VMware 3.x, SRDF, CISCO Terminal Servers. Netapp FAS980, 6080,980, Sunfirev210, v240, v202,v440, v480, 280R, T1000, T2000, X4100, X4150, X2200, X6250, Sparc T5140, T5120, HP DL145G2, DL140G2, DL360G5 & G6, DL365, DL580G5, DL585, workstation2x6000, Dell Poweredge R905, 1850, 2970, 2600, 2650, 6650, GX280.
Safeway, Pleasanton, CA Oct 2012 – Feb 2014
Sr. Linux /UNIX System Administrator
Responsibilities:
Installation, configuration and upgrade of Solaris 9/10, Redhat Linux 3/4/5, HP-UX 11i, AIX 5.3 operating systems.
Performing periodic HBA (LPFC,QLC) firmware and driver upgrades for proper and smooth operation of Tivoli Storage Manager(TSM).
Creating metadevices, mirror & maintained root disks using Solaris Volume Manager(SVM).
Configured and installed Solaris, HP-UX and Redhat Linux Servers using jumpstart, Ignite, and Kickstart.
Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.
Involved in Configuration of Control domain on T-series servers and creation of Guest LDOMs on them for each different applications.
Worked on installing and configuring VMware/ESX Servers for virtualizations.
Configured Solaris IPMP and Linux Bonding. Worked on Storage multipathing.
Supported Oracle RAC (Real Application Cluster ) Servers running on Linux with GFS and Solaris with SFRAC.
Create automated Jumpstart environment for Solaris standard builds for WEB, APP and DB servers.
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.
Supported Oracle RAC (Real Application Cluster ) Servers running on Linux with GFS and Solaris with SFRAC.
Package management using RPM, YUM and UP2DATE in Red Hat Linux.
Tuning of TCP/IP, LOM, System Controller(SC) in cluster environment.
Worked on Creating Local zones and Branded zones on Solaris Containers global zone and migration of the applications on to these zones from the physical servers.
Developed technical documents like handbooks, document installation configurations, and proposed resolutions for support processes.
Responsible for Daily Backup maintenance through Tivoli Storage Management(TSM).
Worked on Live Upgrade, migrating from UFS root file system to ZFS file root system using lucreate, luupgrade, luactivate.
Provide technical assistance to the application development area and co-workers about system analysis, design and programming.
Communicate with the user community and co-workers to assess needs, resolve problems, and provide technical assistance where necessary relating to UNIX administration functions, and software running on UNIX platforms such as Apache, WebSphere and Oracle9iAS and COTS third party software.
Assist in the creation of policies and procedures that will be sent through a formal clearance process.
Applied recommended OS Patches, Kernel upgrades using Solaris Live Upgrade on Production and development servers.
Experience in installing, configuring and monitoring VERITAS Cluster Server (VCS), Service Guard and Redhat Cluster Server in High Availability Environment.
Environment: RHEL 5.x/4.x, Solaris 8/9/10, Oracle TSeries, MSeries Servers, HP DL580-DL380 G3,G4,G5,Dell PowerEdge, IBM blade servers, Websphere 5.x/6.x, Apache 1.2/1.3/2.x, iPlanet, Oracle 11g/10g/9i, Logical Volume Manager, Veritas netbackup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 3.x/2.x.
FRY’s Electronics, San Jose, CA Aug 2010 – Sep 2012
System Administrator
Responsibilities:
Extensively worked on server build, Configuration and Administration of Sun/HP/Dell servers from scratch with OS of Solaris 10, Linux (Red Hat & SuSE)
Performed configuration, monitoring, support, tactical planning of rollouts, migrations, and day-to-day management of the HP server infrastructure.
Automated server building using System Imager, Kickstart and Jumpstart on Sun and Ignite on HP servers
Configuring and troubleshooting SAMBA SERVER IN Linux and Solaris
Monitoring Server performance and troubleshooting server related problems
Worked with database administration staff to ensure optimal performance of databases, and maintain development applications, databases, and ensure database backup completed successfully
Implementation of RAID techniques and the creation of Disk groups and volumes, plexes using VERITAS Volume Manager 4.1, solstice Disc Suite and logical volume manager for managing disks and file systems
Installing operating system patches, packages, system customization and documentation
Implemented Red Hat Cluster Suite with GFS and RHN Satellite Server in the Development and Production environments
Configuring Solaris Volume Manager for lower environments
Configured and implemented NIS, DNS master Slave servers along with required clients
Building, Installing and configuring Veritas Cluster Server and HP MC service Guard
Associated with DBAs for installation of Oracle database (RAC) on Linux servers & for tuning, backup and restore
Experience with EMC Storage on Solaris and Linux servers (i.e. familiar with Navisphere, Access Logix, Host Agent, Power Path, Snapshot and Cloning, SAN Copy
Setup and maintain Logical Volume Manager (LVM), Created Physical volumes, Volume groups, Logical volumes and Mirrored root Disk
Installed, configured and maintaining services Apache, Sunone Web servers
Configuring HA for VERITAS Cluster Server NFS, send-mail and MQ series
Environment: HP9000 / L2000 / RP5450, Proliant series, Itanium servers RP3440, RX46401, RP4440, Mseries 8000/9000, Tseries T4000/5000 420R, V490, E220R, V1280, V480, V440, Sun Fire 4800, V1280, E450, V215, V125, Sun Fire(X4200, X4600) AMD, Power edge(R900, 2950) Dell. Sun, HP and Dell Blade Servers.
Infotech Software Solutions, Hyderabad, India Jun 2008 – Aug 2010
UNIX Administrator
Responsibilities:
•Experience with installation, configuration, upgrade and administration of IBM pSeries and power5/power6 servers on various levels of AIX operating system utilizing environment.
•Installation and configuration of Open SSL; Enabled the trusted shell for oracle user between different box’s.
•Extensively used LVM, created VGs, LVs, and disk mirroring per usage and requirements
•Installed VIO server for Advanced POWER Virtualization (APV) on IBM P5 System. Assigned resources by creating client LPARs and administered OS and application installation
•Worked with monitoring tools like Tivoli monitoring, HP Open View, Wily and BMC Patrol.
•Responsible for NIM installation, setting up NIM servers, clients, define the resources, Alternate Disk Migration with NIM Responsible for migrating VIOS 1.5 to 2.1.
•Updated documentation of all the Servers and the installed applications and patches
•Performed OS upgradation in AIX 5.2/5.3 to a more stable version of AIX 5.3 and from 5.3 to 6.1.
•Installation and troubleshooting on VMware running Linux (RHEL, SUSE).
•NTP Server configuration for new clients and synchronized the clients with NTP server
•Installed and built from scratch complete NIM Setup. Added different clients to NIM server and their Backup. Scheduled backup of Client mksysb images from NIM server with shell scripts Restored mksysb images with NIM
•Perform UNIX administrator duties supporting production servers running ERP (SAP) and database (Oracle, data guard, Sybase, PeopleSoft, and DB2)
•Defined and setup network printers, and install client/server applications..
•Troubleshooting critical networking and hardware issues and other day-to-day user trouble tickets in association with other administrators in the group.
•Responsible for Monitoring system resources of database servers to assure production systems meet availability requirements and hardware enhancements are scheduled in a timely fashion.
•24/7 on-call support for critical database issues on a rotational basis.
•Responsible for writing, maintaining and documenting UNIX scripts to support smooth running of applications on the production servers.
•Monitoring disk usage; plan acquisition and replacement of disk devices as needed.
Environment: IBM AIX v5.1, v5.2, v5.3, v6.1, p595, p570, p561, p560, p520, p505, Linux(Red Hat), LPAR, DLPAR, Dual Virtual I/O, HACMP 5.3, v5.4, 5.5, Multiple HMC WebSM, NIM, KORN Shells, Storix 6.1, EMC Clarion, Tivoli Monitoring, NetApp Storage.
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