SUMMARY

• Over 7 Years of Experience in UNIX/LINUX Systems Sun Solaris (8, 9 and 10), RedHat Linux 4.X,5.X and 6.X,7.X, CentOS, SUSE, Debian, OEL &HP - UX 10.x, 11.x and AIX (6.1, 5.x).
• Installation, administration, implementation, testing and maintenance of complex and heterogeneous networks consisting of Linux (Red Hat), Sun Solaris 8/9/10, IBM AIX, SuSE, Windows.
• Configured ILOs and Console connections for HP and SUN servers.
• Configuration and administration of EMC Vmax san array on SMC/SPA, creation of thin devices, meta devices and virtual devices as for database space allocation, administration on EMC Unispehere. Report generation for array disks, heat maps, me/O status.
• Configuration and administration of Sun Storage Tek 6140 for database and application on RAID1+0, RAID 5 configured by array manager.
• 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. Installation and administration of zones on Solaris 10.
• Network configuration for interfaces, switch ports, Ethernet cards, host names, net mask and routes details, DNS, NFS, LDAP, NTP and SNMP etc.
• Understanding and troubleshooting skills wif networking communications and protocols such as TCP/IP, NFS, DNS, SMTP.
• Extensive experience in Linux performance monitoring and kernel tuning and Load balancing.
• Installation, configuration of Package and Patch Management.
• Worked on GFS (Global File System) on Linux and ZFS (Zeta byte file system) on Solaris.
• Extensive experience in Linux performance monitoring by using top and prstat and load balancing, security setup, troubleshooting.
• Experience in maintaining/tuning/upgrading Web servers/Web application for Java applications.
• Installation and configuration of Oracle RAC clusters on Linux/Solaris environment
• Extensive experience in IPMP (IPmultipathing) in Solaris and Multipath and Bonding in Linux
• Performed planning and implementing migrations on Solaris and Linux servers
• Experience on VMware Installation, configuration and monitored virtual environments wif ESX 4x,5x servers and VirtualCenter4x,5x.
• Experience on backup and recovery software like Veritas Net backup 5.1 and 7.5 on Linux environment.
• Installation and configuration of guest Operating Systems like Windows, Linux and Solaris for different applications on ESXi environment.
• Familiar wif shell scripts run on Linux and Solaris environment and administration.
• Work support to all Linux system problems 24x7 and resolving them in timely basis and ensuring high availability.

TECHNICAL SKILLS

Operating systems: RedHatLinux (RHEL 3/4/5/6),IBM AIX (6.1/5.3), Solaris10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), SUSELinux9/10/11,Windows NT /2003/XP

Server hardware: Excellent Hardware skills on IBM p-Series P690, P570, RS6000, Sun Fire 3800/4800/6800 , HPProLiantDL 585/360/385/585 G2, rx8640, rp7420, rp8420, N-Class, Confidential -Class, D-Class,C-Class,K-Class, T-Series M-Series, IBM/HP/DELL Blade Serverr710

Storage hardware: SymmetrixDMX 800/1000 / DMX-2 / DMX-3 &EMCCLARiiONFC and CX Series, FC JBOD, Brocade FC Switches, Net App Filers, Qlogicand Emulex FC HBAs, Brocade silk worm 3200, 3800,48k, iSCSI/ FC Storage arrays, RAID Storage arrays, DLT and LTO Tape Libraries, Hitachi enterprise systems

Cluster Solutions: HACMP 5.4./5.3/5.2/5.1 , RedhatCluster Suite,Sun Cluster 3.0, 3.1,Service Guard 11.16/17/18

Scripting language: Ksh, Perl, Bourne shell.

Networking Services: NIS, NFS,AutoFS, DNS, SSH andSend mail.

Ticketing Tools: HP Service Manager, Remedy, Service Centre and OPAS.

PROFESSIONAL EXPERIENCE

Confidential, COLUMBUS, OH

Sr. Linux/Unix Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Red Hat Enterprise Linux 5/6 and Solaris 9/10 systems.
• Performed automated installations of Operating System using Kickstart for Red Hat Enterprise Linux 5/6 and Jumpstart for Solaris 9/10 Linux.
• AdministeredLinuxservers for several functions including managing WebSphere, Apache/Tomcat server,and mailserver, MySQL database, SVN.
• Building of new servers which include rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
• Created and maintained the Shell/Perl deployment scripts for TC Server/Tomcat web application servers.
• Troubleshooting Apache issues such as performance testing and tuning (me.e. worker, pre-fork, mpm configuration), failure of Apache to restart, queuing of requests, etc.
• Working knowledge wif shell scripting using Bourne Again Shell (BASH), Puppet, and Nagios.
• In-depth knowledge of NFS, DHCP, NFS, FTP and network troubleshoot issues and solutions.
• Installed and configured Symantec VERITAS Netbackup master, media and client servers.
• Setup VERITAS Netbackup policies, Sun Server 7000 storage.
• Experience using YUM and RPM for package management.
• Day to day automation using Ansible and puppet.
• Red HatLinuxserver administrator, including security patching, kernel tuning, RAID disk array mgmt., software packaging and installation using RPMs.
• Extensive use of Perl & Bash shell for scripting.
• Performance enhancement and tuning for Tomcat, Apache and JBoss servers on RHEL6 OS virtual instances.
• Worked on SAN storages of EMC products like CLARIION CX3, CX4, and Symmetric DMX-4 for storage and backup.
• Used Puppet Master to keep in sync configuration on hosts running agents.
• Upgraded and maintained software packages on servers using RHEL Satellite and Repository servers.
• Build new Virtual machine and physical server.
• Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Monitored Hardware console for any hardware issues. Troubleshoot any operating systemissues.
• Created Root Cause Analysis (RCA) for any server outages and server problems.
• Monitored ESX server alarms and VM's alarms and acted on those incidents to resolve.
• Implemented V2V and P2V conversion using VMWare Converter.
• Proper power down and up process during Maintenance of ESX hosts or power outage.
• Monitoring wif Centreon/ Nagios, Splunk, MySQL Dashboard, Cacti etc.
• Coordinating wif various vendors for hardware related issues.
• Experience in Remote deployment of Microsoft Windows 2003/2008/R2/2012 servers using Altiris deployment solution or manual installation of a server using ILO for remote connection to a server.
• Maintaining servers wif latest security updates, critical patches, anti-virus, and backup.
• Install and maintain SCOM in the environment and maintain the monitoring configurations.
• Installed and configured Windows 2008/2012 servers.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Responsible for deployment and support ofVMwarevSphere ESXi 5.1
• Installing and Managing ESX and ESXi servers on Cisco servers.
• Expertise in ESX and ESXi servers - configuration, Installation, management and maintenance wif High Availability, DRS, VMotion, Storage VMotion and Fault Tolerance.
• Managing all aspects of VMware including vSwitches, Distributed virtual switches, HA, DRS features, vMotion,
• Storage vMotion, creating and handling VMFS volumes, host profiles, storage profiles, Resource pool creation.
• Installation of vCenter Server, vCenter Components and upgrading VMware Tools.
• Creating resource pools and adding the VM’s into the pools.
• Manage snapshots, clones, templates during patch releases and new server deployments
• Experience wif installing, configuring and troubleshootingVMwareLab Manager.
• Expertise in Dell physical servers and HP Proliant blade servers in Data centers.
• Hands on experience in updating / upgrading ESX servers, Virtual Center servers and windows virtual machines usingVMware Update manager and manual upgrades
• Installation and configuration of Microsoft Windows Vista, XP, 2000 server, Professional, Windows 2003 and 2008 Servers.
• Performing v2v migrations and building servers.
• Installing and managing SRM.
• Perform daily health checks for servers like checking CPU memory utilization, Check the connectivity
• Manage and monitor Active Directory services and group policies.
• Updated ESX host’s usingVMwareUpdate manager.
• Supported a large-scale Data Center projects including server installation, hardware maintenance, and break/fix activities.
• Assisted in P2V conversions of Windows servers usingVMwarevConverter.

Environment: Cisco UCS B-series blade servers, Red HatLinuxEnterprise 4/5/6, Solaris 9,10, SAN (NetApp), BladeLogic, Veritas Cluster Server 5.0, VMware Virtual Client 4.1, Chef, Ansible, VMware Infrastructure 5.0, vSphere 5.5, HP DL’s, Service-Now, Disk suite, HPUX, ESX, LDAP, DNS, NIS, NIS +, SNMP, Shell scripting, Apache, Puppet, WebSphere, Sun and Veritas Clusters.

Confidential, Reston, VA

Linux/Unix Administrator

Responsibilities:

• Installation, configuration and Operating System upgrade on, Red Hat Linux 4.0, 5.0, and 6.0 and Sun Solaris 8,9,10
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
• SWAP box configuration, Implementation of disaster backup and recovery. Performance Management & Tuning of RHEL.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems
• Installed and configured SAMBA server for windows and Linux connectivity.
• Installed and Configured Sun availability Suite 3.5 to implement Point-in- Confidential snap shots and remote mirroring.
• Configuration & troubleshooting of applications including nginx, kafka, HAproxy etc.
• Perform DB profiling and optimization; analyze and propose schema changes to PostgreSQL databases as needed
• Implemented and configured Backup policies and Storage Units.
• Managing disk storage wif Veritas Volume Manager 3.5/4.1 and Solaris Volume Manager wif Veritas File System (VxFS).
• Installed Web Logic 8.1 wif SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Implemented NIS and NFS for administrative and project requirements.
• Installed and Configured Web and investigate the configuration changes in the production environment.
• Responsible for multicasting of various components as a system administrator.
• Worked closely wif database administration staff to ensure optimal performance of databases, and maintain development applications and databases
• Tuning the kernel parameters based on the application/database requirement.
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Set up Quotas for the user accounts & limiting the disk space usage.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Maintain servers wif puppet for user accounts, packages and other configuration managementservices.
• Nginx web server configuration & troubleshooting.
• Upgrading RHEL 5.0 to RHEL 5.5 using live upgrade and manual upgrade.
• File system tuning, growing, and shrinking wif Veritas File system 3.5/4.x
• Worked on network connectivity, SAN storage, creating LVM and taking TSM backup.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Modifying user’s password policies, group policy, UID and GID assignment policies.
• Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of me/O devices,, memory usage and network traffic.
• Troubleshoot network connectivity usedping, netstat, ifconfig, and trace route commands. Login to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network usedftp, scp, and rsync commands.
• Linux technical support and prepared technical documentation for check in verification.
• Regular backing up of critical data and restoring backed up data. Worked in solving tickets issued on day to day activities and problems related to development and test servers.
• Working knowledge on ITSM remedy and Maximo ticketing systems.

Environment: Red Hat Linux 3,4.x,5, Ubuntu 13 VMware ESX 3.5.4.5 and 5.1, Veritas Volume Manager, Sun Solaris, 9,10, Redhat Cluster Server, Oracle Rac Cluster,PostgreSQL database,Weblogic 8.1,Puppet, Samba, Oracle 9i/10g,DELL Power edge 1650,2850,2950,6400, IBM Blades

Confidential, New York, NY

Unix/Linux Admin

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using Kickstart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers wif Zones and containers wif Sun ZFS.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Assisted in configuring the application servers wif other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Extensive use of Korn shell, Bash for scripting.
• Expertise in Linux backup/restore wif tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Regular disk management like adding / replacing hot swappable 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.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Worked wif other IT teams, customers (users), and other managers in halping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10,Red Hat Linux 4/5, Veritas Net Backup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, SAN Switches, Apache, Tomcat WebSphere, Weblogic application server.

Confidential, Manhattan, NY

Linux/Unix Administrator

Responsibilities:

• Managing UNIX Infrastructure and Netapp, EMC storage involving maintenance of the servers and troubleshooting problems in the environment.
• Installing operating systemsSolaris, Linux according to business requirements.
• Planning and implementing the configuration changes to the servers adhering wif ITIL change management process.
• Trouble shooting the issues ranging fromSolaris, Linux and SAN environments.
• Created and MaintainedSolaris10 zones/containers.
• Experience in creation and maintenance of ZFS file systems.
• Regularly applying patches both forSUNand Linux systems.
• Installed and Configured Jumpstart and Kickstart Server.
• Working wif VERITAS Volume Manager for creating volumes and file systems for various applications and databases.
• Experience wif Java Enterprise Application Servers such as Oracle Weblogic, Oracle Application Server (OC4J), Redhat JBOSS, and Apache Tomcat.
• Creating and maintenance of Virtual machines in VMware ESX.
• Worked on different VMware products like VMware workstation, GSX/VMware server and ESX server 4.X.
• Configured, Installed LDAPSolarisand Linux server.
• Connecting to ESX server by using VNC, putty andWeb access.
• Installed and configured Send mail onSolarisLinux servers.
• Migrated central send mail server to Postfix and Installed and Migrated SAP from Linux toSunservers.
• Involved in NAS migration project to migrate the data across the storage arrays.
• Implemented security policy and managed firewalls/IDS. Managed DNS, send mail, IP space, and co-location facility transition.
• Providing 24/7 on-call supports on rotation basis.
• Developed Korn and Bash shell-scripts to automate routine activities
• Installation and Configuration of Windows Active directory server 2008.

Environment: SUNE10K, M4000/M500, E4500/5000, E35000, Solaris9/10, RHEL 5, Veritas Volume Manager (VxVm), VMware, Veritas Cluster server (VCS).

Confidential

Linux Administrator

Responsibilities:

• Installed, configured & handled troubleshooting of Solaris 8/9/10 and Red-Hat 3/4 on Sun Enterprise Servers and AIX onIBM Blade Servers.
• Set up the Domain Name System by configuring the DNS primary, secondary and DNS Clients and configured the database files.
• Administered the Network of 400 UNIX Users using Shell Scripts.
• Monitored the Network and System Performance throughvmstat, 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 usingShell Scripts.
• Recovered data from server after aROOTfile system crash.
• Created and added Swap Space at runtime.
• Part of team for Installation and configuration ofDB2.
• Configured additional storage devices, partitioned hard disk based on the project requirement.
• Installed several security packages likeSNORT, 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 wif 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 wifout 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-HatLinux3/4, Solaris 8/9/10, Oracle 9i/10g, Bash, SNORT, NAS, Send mail, DB2, VERITAS Net Backup, VERITAS VolumeManager 3.0,EMC SAN.