LINUX System Administrator
Resume:
Srujan Reddy
System Administrator
********@**********.***
Summary:
Around 7 Years of experience as a System administrator in the areas of RedHat Linux and IBM AIXenvironment.
Experienced in the installation, support, configuration and maintenance ofRedHat Linux and IBM AIX, under heterogeneous environments.
Installing, configuring and maintaining the VMware ESX3.x/4.x, Virtual Center 2.xservers.
Experience in Server build using Jumpstart, Igniteandkickstart Process on multiple servers.
Installation of patches, Security fixes, packages on Linux and AIX Servers.
Experience in Virtualization with VMware.
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.
Extensive experience in configuring Global File System(GFS) and Zeta byte File System(ZFS).
Experience in installing and configuring VERITASCluster Server (VCS), Redhat Cluster Server (RHCS),Sun Cluster Server 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
Building automation using Puppet
Worked with Storage Area Networks (SAN), of EMC Clariion, EMC Symmetrix, EMC DMX, VMAX.
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.
Undertaken course on Amazon Web Services(AWS)
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.
Education:
Bachelors in computer engineering. JNTU Hyderabad.
Technical Skills:
Operating Systems
Linux (RedHat 3.x,4.x,5.x,6.x SUSE 10) VMware ESX 3.x,4.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, DMX, VMAX,Hitachi arrays, Amazon Web Services(AWS)
Professional Summary:
JP Morgan Chase, Columbus, OH AUG ’14 to Tilldate
Linux/System Administrator
Responsibilities
Installation, Configuration and Upgrade of RedhatLinux 5.x, 6.x Operating systems.
Daily Administration of RHEL 5.x and 6.x.
Implemented and administered VMware ESX 3.5, 4.x for running the Redhat Linux servers on development ant test servers.
Installed software packages and configured File systems as per specifications of client.
Involved in configuration and support of production environment hosted in a 24x7 setup.
Troubleshooting and problem resolutions on Linux servers.
Troubleshooting application issues on Apache web servers an also database servers running on Redhat Linux.
Monitored the servers and linux scripts regularly and performed troubleshooting steps.
Maintained necessary back-up of the important files and documented linux scripts for future reference.
Expertise in Linux backup/restore with tar, gunzip, including disk partitioning and formatting.
Deployed latest patches for Linux and Application servers.
Administered Liux servers for several functions including managing users, Groups, and permission for each groups and users.
Pakage management using RPM, YUM and UP2DATE in Red hat Linux.
Associated with DBAs for installation of Oracle Database on Linux servers and for tuning,backup and restore.
Configured Oracle RAC Cluster.
Deployed Puppet, Puppet Dashboard for configuration mananagement to existing inftastructure.
Involved in developing custom scripts using Perl and Shell scripts to automate jobs.
Scheduling the jobs by creating crontabs /Cronjobs on Linux servers.
Monitor the performance and availability of key middleware components in production and test environments.
Responsible for monitoring and working on problem tickets. Following it up with business and tehincal teams, and ensuring the problem is successfully resolved.
Worked on firewall implementation & Load blancer between various Linux Servers.
Experience managing multipathing using Linux and also EMC Powerpath on SAN devices.
Experience working EMC SAN storage Arrays like EMC DMX, VMAX and configured RAID groups and created LUN’s on them.
Responsible for providing technical support and providing production support for internally developed applications.
Environment: RHEL 6.x/5.x, Apache 1.2/1.3/2.x, Logical &Veritas Volume Manager, VMware ESX 4.x/3.x, Puppet.
GE Capital, Chicago, IL Jan ’12 to AUG ‘14
Linux/System Administrator
Responsibilities
Installation, Configuration and Upgrade ofRedhatLinux 5.x, 6.x Operating systems.
Installing, configuring and maintaining the VMware ESX 3.x / Virtual Center 2.xservers.
Installation and Configuration of Veritas Volume Manager, Veritas File system and Veritas Cluster Server.
Created Virtual servers Amazon EC2 in cloud.
Database and application monitoring using Nagios.
Worked with the Search relevancy team to improve relevancy and ranking of search results using SOLR and implement
Configured storage in Cloud Amazon S3, And managed users and groups.
Monitored the Cluster and Notification Services using Amazon CloudWatch.
Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
Updating YUM Repository and Redhat Package Manager (RPM).
Expertise in Configuring NFS, DHCP and DNS on servers.
Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process & performed Kickstart to install OS on Several workstations.
Performed setting up Configuration Server and Boot Server for Jumpstart process and using tape-Recovery for file system recovery.
Providing day-to-day user administration like adding or deleting users, password aging, zones/containers, Zpools (ZFS) software upgrades/patches, troubleshooting of servers.
Experience in configuring and managing Global File System (GFS) and Zeta byte File System (ZFS).
Written/edited scripts for user administration, automation, system maintenance, security management, information gathering using Perl, Shell (Korn, sh, Bash).
Disk mirroring andRAID (0/1/5) implementation using SVM/LVM/VxVM.
Installation, configuration and administration of Redhat Cluster Suite, Veritas cluster Server and HP Service Guard.
Experience in EMC CLARIION SAN, NAS, and DAS installed & configured, implemented clustering, high availability (HA), and Fail over.
Opened many tickets for the issues raised on the Servers including Configuration of New Servers, and technical and hardware related and assigned to concerned persons.
Configure Web Logic, Websphere servers and APACHE and TOMCAT Server with JAVA Application tools on Red Hat and Hp UNIX servers environment.
Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
Automation server management system by deployed Puppet, Puppet GUI, and PuppetDB for big scale configuration management.
Participated in root-cause analysis of recurring issues, system backup and security setup, Worked in 24X7 support in Production and development environments.
Trouble shooted various problems when working with Installing and configuring OS and network device remotely in various site.
Supported Java and J2EE applications and trained developers regarding server login,commands.
Worked with Vendors on Hardware Problems, software issues.
Environment: Red Hat Enterprise Server (RHEL 3, 4 5 and RHEL 6), VMWARE E3500, E4500, E6500,Symmetrix 8730,8830,DMX 20000,Storage Arrays and IBM Storage Subsystem DS6000, Dell Power edgeR905,1850,2970,2600,2650,6650, Veritascluster server, Vmware 3.X,Tomcat/ApacheJBoss, SOLR.
Verizon Wireless, Dallas, TX Aug ‘10 to Dec ‘11
Linux/System Administrator
Responsibilities
Installation and configuring of RedHat Linux servers.
Installing, upgrading and configuring RedHat Linux5/x and 6.x 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.
Configuring NFS, NIS, NIS+, DNS and LDAP.
Setting up cron schedules for backups and monitoring process.
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 Linux platformsfor 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.
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 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.
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 issuesAIX, 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 Linuxservers (core dump and log file analysis).
Environment: RedhatLinux 4.x, 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.
SOA Software, Hyderabad, India May‘08 to Apr ‘10
System Administrator
Responsibilities
Installation of RedHat Linux based servers with in development, test and production environments.
Installation, Configuration & Up gradation of Linux and AIX.
Monitor all RedHat Linux based hardware and software and assist in problem resolution based on alerts and system generated errors in a Production and Development environment.
vmProactive maintenance on systems by timely upgrading Patches to the systems and applications, Scheduling of batch jobs and cron jobs.
Installation and configuration of Oracle RAC onRedHatLinux servers.
Performed project coordination function for evaluation, installation, monitoring, and maintenance of server software on variety of hardware platforms.
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 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.
Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
Creation of users, mounting home folders and respond to general user queries regarding mounting issues.
Providing day-to-day user administration like adding/deleting users and managing user’s queries.
Performed systems monitoring, upgrades, performance tuning and backup and recovery
User maintenance, Performance tuning of all the servers.
Environment:RedHat Linux 4.x, 5.x, Sun Fire 4800/3800, HP-9000, RS-6000, Veritas Foundation Suite.
Contact this candidate