SUMMARY

• 7 years of IT experience as a Red Hat Enterprise Linux, Unix: Solaris & AIX Administrator.
• Involved in installation, configuration, upgrading, patching and administration of Linux, Unix and Windows Servers
• Experienced in configuring Kickstart and Jumpstart servers to initiate installation of Red Hat Linux and Solaris on several machines at once.
• Experience working with Puppet for automating the deployment of post install configurations of the servers in various environments.
• Comprehensive Knowledge of Linux kernel tuning, patching and extensive knowledge of Linux system imaging/mirroring using System Imager.
• Involved in complete Administration tasks on UNIX (SUN Solaris, Red Hat Linux, AIX) and documentation for the projects executed.
• Performance Monitoring, resolving network issues & Tuning the system using tools such as - top, iostat, vmstat, netstat, nfsstat, truss, sar, ndd, ithtool, Dtrace, Strace.
• Experienced in Logical Volume Management on Linux with LVM Knowledgeable in HTTP, HTTPS, SMTP, FTP, SFTP, DHCP, DNS, SNMP TCP/IP, UDP, ICMP, VPN,POP3 protocols.
• Experience in supporting environments running Web Servers (Apache & IIS), Application Servers (Websphere, Jboss ) on Unix and Windows systems.
• Expert in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
• Experienced in DNS, NIS, NFS, FTP, NIS, Samba Server, LDAP, remote access, security management, and system troubleshooting skills.
• Creation of a Virtual Server environment using RH-Enterprise Virtualization, VMWareESX 3.5 and Solaris Zones.
• Setup of Enterprise Monitoring Tools like Nagios, BMC Patrol and Tivoli.
• Networking setup and support of TCP/UDP and other application layer protocols like SMTP, DNS, LDAP, NIS, NIS+, NFS, DHCP etc.
• Batch scheduling, batch scripting, nightly backups and network troubleshooting.
• Experience with Version Control Configuration Management Tools like Clearcase, SVN, Clearquest,Remedy and Puppet
• Installation and support of 3rd party software systems on Unix& Linux like Web Servers, Application Servers, Middleware and Databases.
• Have performed DBA activities such as Oracle installation, database creation, maintenance and database backup and recovery on SUN hardware
• Comfortable in working in a Data center environment - swapping of disks, Attaching/Detaching storage, increasing Utilization.
• Experience in writing Scripts in Perl, Bash, Ksh for performing automation of various tasks.
• Managing the Licenses for Enterprise Applications using FLEXlm, providing Floating Licenses.
• Provided production support in an on-call rotation in a 24x7 environment.
• Also have worked on most of the Storage products like HP MSA, EVA, XP Storage works, EMC Celerra, Clariion&Symmetrix, Dell Equalogic PS series&MD3000i,IBMfAAstDSxseries, NetAppfilersFASxetc and know the basic management functions such as configuring Storage Array from scratch, carving a LUN Group, RAID Level, creating a vDiskand presenting to Hosts.
• Experience in working with HDLM, SAN, NAS, storage systems, Cisco SAN gear and SAN volume controller.
• Experience in connecting to an EMC disk subsystem with PowerPath and MPIO.
• Experienced SAN Management for Sun Solaris/HPUX/AIX/Windows operating systems.
• Knowledge in working with Fiber Channel and SCSI Storage Area Networks (SAN). Experienced with Storage Administration like EMC SAN Administration.
• Planning and coordinating activities related to upgrades and maintenance on the systems
• Experienced in configuring SAN bootable servers/LPARS. Expertise in Tivoli monitoring, Tivoli Storage.
• Experience in working with SAN, NAS, storage systems, Cisco SAN gear and SAN volume controller.
• Day-to-day administration of Netapps infrastructure using Filer view, system manager and CLI. Work on Incidents and changes. Was responsible in maintaining the SLA, to handle all the storage provision (creation/expansion) in the project that was raised by the user.
• Supporting NetApp storage infrastructure for global customers.
• Great Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VxVMand SVM.
• Involved in Batch scheduling, batch scripting, nightly backups and network troubleshooting.
• Good knowledge in Perl scripting & expert in configuring, troubleshooting and administering Apache and Tomcat web servers

TECHNICAL SKILLS

Operating Systems: IBM AIX 4.3, 5L, 5.2, 5.3, 6.1, 7.1, Cent OS, RHEL 7.x,6.x/5.x/4.x/3.x, Fedora, SUSE Ubuntu, Windows family, Sun Solaris 7/8/9/10/11,MS Dos,Mac OSX, NetappDATA ONTAP(7.3, 8.1),DATA ONTAP 7.3 and 8.1versions,VMWARE ESX/ESXi.

Hardware: Netapp filers FAS series, IBM N-SERIES, EMC clarion cx series, Tape Libraries - Sun StorEdge L20/L40/L60, L180 and Storagetek’s 9840 A/B/C Fibrechannel, Sun Fire Servers - E25k, E15k, 12k, E280R, E480R, Sun Enterprise 450/420R/250 server, Arrays - Sun StorEdge 3130, A1000/D1000, EMC DMX (800 and 1000), IBM DS4K, DS5K and DS8K, SVC and Storwize V7000

Languages: Shell scripting, PERL, Bash, Python, HTML

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, HTTP/HTTPS, CIFS, Cisco Routers / Switches and LAN

Fabric Switches: Brocade and cisco Switches

Tools: Sun Cluster 3.2,Netapp CLI, NetappGUI (filer view & system manager),VERITASNetbackup 6.0,VERITAS Storage Foundation Suite, Solaris Volume Manager.

Backup: IBM Tivoli Storage Manager, VERITAS Netbackup 6.5, Replication manager, Recover point and VM ware

Applications: HACMP, Tivoli (TSM),AWS, VERITAS Volume Manager and Symantec netbackup

Storage Technologies: RAID, LVM, FC, SCSI, iSCSI, Fiber channel, FCoE, SAS, Multi pathing, Backup and recovery, Business continuity and continuous access, Veritas Volume manager, Netapp storage and Amazon S3

Web Technologies: Lotus Domino 5 / 6, Apache 2.0, Tomcat, WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, HIS, Amazon Web Services

PROFESSIONAL EXPERIENCE

Confidential, Minneapolis, MN

Linux Administrator

Responsibilities:

• Building the servers for new applications in development, QA, UTA, production and DR environment.
• Responsible for Software and application package administration and troubleshooting at user level and deployment management.
• Wrote scripts to automatic daily checks
• Managed shared NFS files system, mounting and unmountingNFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Responsible for daily tasks such as user setup, group setup, install and upgrading new machines on Solaris, RHEL.
• Patch Management, Package management, RPM, User administration
• Supported development groups, application support and various external groups to resolve the production issues.
• Installed and Configured Web Logic, APACHE and TOMCAT Servers with JAVA Application tools onRed Hat and AIX servers environment
• Worked with legato networker tool to backup/retrieve the logs and transfer to FTP server at the request of the development to further investigate the incident.
• Tuning the kernel parameters based on the application/database requirement. Also regularly monitored system performance with the help of system utilities like vmstat, iostst, prstat etc. and other utilities like sar, top etc
• Responsible for conducting post incident review (PIR) meetings and to make sure to have a permanent solution for incident.
• Day to Day administration tasks - adding and removing users, file, share permissions, trust management, replication management, server backups and server setups on AIX, LINUX (RHEL,SUSE, Ubuntu). Server health monitoring and system tuning as per vendor recommendations.
• Experienced in IBM AIX operating system migration, from AIX 4.3/5.1/5.2/5.3 to 5.2/5.3/6./7.1 and extensively performed TL/SP upgrades using AIX OS DVD, NIM server alt disk install/NIMADM to minimize downtime.
• Setup and configure network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted directories on AIX Servers.
• Installation of patches, Security fixes, packages on AIX, Linux and Sun Solaris Servers.
• Worked on data center migration projects and was involved from planning to implementation, worked closely with the application team with applying upgrades and also coordinated the deployment with the datacenter support, network engineering and with external vendor support .
• Implementation and administration of VMwareESXi 4.x, 5.x, vCenter for running Redhat Linux, windows Servers on Production and Development
• Followed ITIL Processes for Incident management, Change management and problem management.
• Used vmstat, iostat, SAR, tnsping&netstat, tcpdump to determine the system and network healt, deployed linux and windows virtual machines from pre-configured templates as VM deployer
• Configured and maintained Software Raids using Solaris Volume Manager, VERITAS Volume Manager 3.0.1, Logical Volume Manager (LVM) and Hardware Raids in and A5000 Arrays using Sun Store Edge RAID Manager 6.2.
• Responsible for preparing weekend work order and participating in weekend testing.
• Providing the notes /reports and documentation of the repetitive work done in incident management, change management and written/build standard operating procedures for GMS operations.
• Generate incident reports, change reports, turnovers, and executive summary.
• Simultaneously worked on different projects and problem tasks.
• Represented GMS operations in defect, problem task, system status meetings.
• Responsible for managing of Linux and Solaris Operating System.
• Administration of Solaris Zones and LODMS.
• Experience on physical servers migrates to virtualization using Branded Zones.
• Administration and configuring of DNS and DHCP on Linux and Solaris systems.
• Administration and configuring of centralized authentication using LDAP, NIS and NIS+
• Administering of Linux Virtualization using VMWareESXi.
• Experience on monitorJBoss and detect the bottleneck of an application
• Working on installation and configuration of JBoss.
• Experience on troubleshoot the JBoss.
• Experience on YUM Configuration and management.
• Administration and Configuring Logical Domain on Sun T-Series machine.
• Working exposure in RIS & PXE Installation.
• Experience on scripting using Perl, shell and bash.
• Managing administrating and troubleshooting RedHat Satellite.
• Administration and configuring LVM1 and LVM2 on Linux and SVM on Solaris.
• Having experience in production support of public cloud.
• Administration of Data center and replacing faulty hardware parts.
• Configuring kickstart in Linux andJumstart in Solaris for OS installing systems.
• Participates in a team responsible for the design, implementation, and automate deployments of systems, network, and storage hardware and software.
• Working experiences of application build and release engineering in a large environment.
• Work experience in automating Java application builds using tools such as Ant and Maven.

Environment: Linux 7.x/6.x/5.x, Oracle 10g, SUN Servers, Solaris, HP-UX, ESX, SUN Fires, Linux, AIX, Jump Start, Shell Script, VM ware, Autosys, Netapp, Veritas Volume Manager (VVM), LDAP, EMC Storage SAN, Veritas Cluster Server (VCS), VMware servers, jboss, Websphere.

Confidential, Rockville MD

Solaris/Linux Admin

Responsibilities:

• Installing and configuring SUN Solaris 10 on Sun Servers using jumpstart and Red Hat Linux ES 5.x using kick start installation.
• Use Blade logic Configuration Manager to upgrade Solaris and Linux operating Systems as well as update firmware, HBA, EMCpower and Banktools through Bladelogic.
• Remote Linux System Administration working on the HP CMS Linux admin team in a diverse environment on the CMS Medicare project of over 2500+ Red Hat 6 servers.
• Worked in a very large virtual server farm, complex installation, and setup and troubleshooting of Red Hat Server OS on both physical and virtual servers.
• WrittenNSH script in Bladelogic to create Falr image and Tar file backups for Solaris and Linux Servers.
• Use Bladelogic Provisioning Manager to build new Solaris and Linux Servers.
• Performed patching and OS upgrades (rebuilds) and associate hardware break/fix, triage and software Installations related to the patching and OS upgrade activities.
• Provisioned and build CHP (compute host platform) Red hat Linux 6.1 virtual machines, these servers based cloud computing.
• Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T2000 Servers with SUN ZFS.
• Provided day to day build support in an environment consisting of thousands of Solaris, Linux and AIX servers for a 24x7 demanding trading division with emphasis on responsiveness and project ownership.
• Gained experience working with VSphere, VMWare, VMWare Orchestrator, working with templates and ISO Linux configurations.
• Provided rotational on call responsibilities to support issues that arises as the result of patching, upgrades or server rebuilds performed by the team.
• Work with Engineering groups, Web Commerce Group, to plan, design, scope and implement development projects on pre-production as well as production systems.
• Responsible for automation of key Unix Systems administration tasks such as User admin, scripting, setting up connectivity, backup and automation scripting and keeping system documentation up to date.
• Experience working with Solaris Zones/Containers and new features of Solaris 10, zone reconfiguration and file system layout modification of the containers supporting the Sybase and Oracle database.
• Installed and upgrade HBA Drivers, Firmware, Power Path and SAN Agents like NAVIAGENT, NAVICLI and NAVISCLIforEMC SAN storage.
• Installed Hadoop on Red hat Cluster servers.
• Setup Hadoop Distributed File System (HDFS) for high-throughput access to application data.
• Worked on weekly decommission process on enterprise wide servers in based on request from customers, take all necessary due diligence before shutting the servers.
• Worked and performed data-center operations including rack mounting, cabling.
• Communication with customers, data center personals and Vendors on decommissioned based servers.
• Attended team meetings, change control meetings to update installation progress, and for upcoming change in environment.
• Documented installation procedures, changes required in present environment and Provide server remediation to ensure all vulnerabilities have been addressed.

Environment: Red-Hat Linux Enterprise servers (HP ProLiant DL 585, BL 465/485,ML Series All IBM X-series), Solaris 8,9,10, (Sun T2000,V490, V890,M5000etc..),AIX 5.3, 6.1,(All IBM P-series) SAN(Netapp), Blade Logic, VERITAS Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Infrastructure 5 and 6.

Confidential, Baltimore MD

Linux Administrator

Responsibilities:

• Installed and configured RHEL 4.x/5.x, Solaris 8/9/10, Windows 2003/2008 for production, staging and test environments.
• Configured Zones, Containers and branded zones on Solaris 10.
• Building LDoms on T5220, T5120 and T5140 servers.
• Configured File Systems using ZFS/vxfs/svm for Oracle Databases.
• Involved in troubleshooting of UNIX technical problems received through e-mail and Clarify Ticketing Tool, Backup solutions according to the SOP & SLA. Generating reports, Preparing Quality Documentations & uploading to VSS tool
• Monitoring, troubleshooting & reporting daily backup status for all critical production UNIXservers enterprise-wide.
• Scheduling and Managing Backup jobs using VeritasNetBackup 5.1.
• Scheduling cron jobs for disk utilization, CPU utilization, backup of the data & operating system and other applications as per the requirement using shell scripting.
• Installation and configuration of Windows 2003/2008 including Active Directory Services, IIS, DHCP on several Dell and HP servers.
• Installed Application Agents on 1500 Virtual/Physical servers in windows 2000/2003/Linux/Solaris.
• Configured devices by using HDLM software from Hitachi SAN.
• Setup of full networking services and protocols on Solaris, including NIS/NFS, DNS, SSH, DHCP, TCP/IP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Administered, maintained Red Hat 3.0, 4.0, 5.0 AS, ES, Troubleshooting Hardware, Operating System. Application & Network problems and performance issues; Deployed latest patches for Sun, Linux and Application servers.
• Disk Space management using VERITAS Volume Manager.
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery.
• Implemented Virtualization using VMware. Installed VMware ESX server on Dell Servers and configured Solaris 9/10/ Red Hat Linux 4.0 / Windows 2003 virtual machines for various applications.
• Installing and setting up Oracle9i on Linux for the development team.
• Installation of software packages and checking the integrity of the installed packages. Installed differentRPMLinux 4.0/5/0.
• Administered Linux servers for several functions including managing Apache server, mail.
• Installed and configured Sudo for users to access the root privileges.
• Integrating UNIX file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Worked with different hardware and software vendors to troubleshoot the hardware and software problems.
• Responsible for backup and recovery of servers.Documented backup policies and procedures for backup routines, schedules and restore policies.
• Managing cron jobs, at Jobs, batch processing and job scheduling.
• Support and detailed troubleshooting of Sun Solaris in a 24 x 7 Environment.

Environment: Solaris 8/9/10, Linux, VMWARE, SUN SPARC workstations (A21, A22, A70, A89),NFS, NIS, DNS; IBM 8677, IBM Blade center Servers (HS20, HS21), Lenovo Workstation’s (D2, D3, D10, D20), IBM P520, P550, P560, P570, P575, P595, IBM IntelliZpro-9228, DELL Poweredge 1650,2850,2950,6400.

Confidential

Unix/Linux Administrator

Responsibilities:

• Installation, Configuration, Maintenance and Development of about 250+ Linux Servers (Mix of Ubuntu, CentOSandRedHat-RHEL).
• Setup, create, clone and configure the virtual servers using VMware Vsphere Client 5.1.
• Design, Configuration, Administration and Development ofLAMP(Linux Apache MySQL PHP) based architecture and other open source applications.
• Create and configure guest virtual machines using VMware.
• Assisted the team and played a key role in Datacenter migration up to cloud infrastructure (IaaS).
• Worked on creating, configuring and administration of the filesystems (ext3/OCFS2) using Logical Volume Management LVM.
• Deploy, configure and manage Linux instances in Amazon Cloud/EC2 environment.
• Worked with job scheduling toolscrontab and autosys.
• Hands-on experience in managing post-install configuration using the tools like puppet, landscape.
• Follow Change Management process prior to making any changes to production systems.
• Provided L3 support for infrastructure, incident management and Network teams by helping in problem solving and troubleshooting issues.
• Actively participated in day-day NOC activities and 24x7 on-call rotation.
• Configuration and administration on standard UNIX services like SSH, FTP, NFS, DNS, LDAP, SSL and Sudo. monitor and check the status of the servers using the monitoring tools like ipmonitor, nagios etc...
• Worked in developing and making changes in UNIX scripting languages (PHP, Bash, and Korn).
• Worked efficiently in resolving issues, tasks and production changes through Service now ticketing system.
• Worked with networking team in understanding the limitations of firewall, domain controllers, load balancers and switches.

Environment: Redhat Enterprise Linux (rhel 6), ubuntu server 64-bit, Centos, HP Servers (BL 360/380),Dell Poweredge R series, VMware ESXi 4.1/5.1, Apache 2.2, EMC Clariion CX4, mysql, PHP,F5 loadbalancer