SUMMARY:

• Over 8 years of experience in System Builds, OS Installs, Application Installs, PerformanceTuning, Backup and Recovery, Networking, Storage, Capacity Planning and Automation on Unix Servers.
• Experience with the Installation, Configurations, maintenance and support on heterogeneous platforms like Redhat Linux, Centos Linux, Oracle Enterprise Linux, Solaris, VMware, Virtual Box, AWS, Windows, and HP - Unix.
• Expertise in installing, upgrading and configuring Red Hat Servers using KickStart and Solaris Server using Jumpstart.
• Extensive knowledge in upgrading/ patching operating systems and several migrations projects.
• Good Knowledge of VMware HA & DRS, vMotion, SVMotion and fault tolerance.
• Extensive experience in working on Virtualization products like VMware ESX 3.5,4.0, Xen 3.xand Solaris 10 zones and containers; also LDOMS.
• Extensive knowledge on creating all kind of file systems like VxFS, ZFS, Ext3, Ext4, UFS.
• Experience in implementing and configuring of Volume Management by using Veritas Volume Manager (VxVM), Solaris Volume Manager (SVM) in Solaris and Logical Volume Manager (LVM) in LINUX.
• Good Knowledge in Installing Packages, Security Fixes and Patches in Linux using Red Hat satellite server.
• Experience in creating different RAID level with Veritas Volume Manager 4.x, 5.x, 6.0 and hardware raid.
• Expertise with clustering technology using Veritas Cluster Service (VCS 5.x, 6.0).
• Experience with user Administration, Hardware setup, and support of storage and manage paging/ swap space.
• Experience in Integration of various network related service like TCP/IP, Ethernet DNS, NIS, NIS+, NFS, DHCP, SAMBA, SENDMAIL, HTTP, FTP, SSH, RSH etc. including various network related products.
• Knowledge of Shell scripting on ksh, bash, and perl to automate system administration jobs as per the costumer request.
• Experience on using bash, awk and sed to automate log monitoring.
• Experience on Setting up printers/ remote queues/ Info-print management Migration upgrades of AIX (433/51/52/53), including system tuning, security, backup, recovery and upgrades of IBM AIX and Linux.
• Strong knowledge of system performance and monitoring tools like Nagios, Cacti, GNOME etc.
• Good Knowledge in planning and designing of Disaster Recovery and Redundant System for reliability, and resiliency.
• Strong knowledge of familiarity with backup products/ process using NetBackup, Tivoli.
• Knowledge of administrative tools like ILOM and KVM to manage change request in data center; and emergency situations.
• Good understanding of installation/ configuration and support of WebSphere, JBOSS, IPLANET, Tomcat, Apache Web server and BEA Web Logic application server, LDAP and mail server.
• Experience in configuring SUDO, granting permissions to users, creating and administrating control and guest domains on LDOMs.
• Strong Knowledge in discovering, thereafter creating file systems on LUN from SAN environments.
• Experienced in troubleshooting problem related to boot loaders like GRUB and LILO and perform PXE booting.
• Good knowledge on setting Puppet master and slave.
• Experienced in round the clock service (24x7), and on call support.
• Expertise in Hardware and software evaluation, recommendation and vendor management
• Excellent analytical, problem solving, communication and interpersonal skills.
• Capable of quickly learning and delivering solutions as an individual and as part of a team.
• Knowledge in the process of transitioning to DevOps practices includes an understanding of best practices, implementation strategies and integration strategies and analysis of related tools.
• Knowledge on DevOps practices like continuous Builds, Testing, Integration and Delivery.
• Strong in troubleshooting, monitoring, training and 24/7 production support in production environment.
• Manage virtual and physical cloud resources as required with an overall objective of improving the scalability, reliability, performance, and availability of the cloud infrastructure.
• Worked with various hardware devices such as: -
• HP Servers (ProLiant DL380 G6, DL360PG8, DL580 G5, DL320 G4, DX 7500, DL 580 G5, DL 365 G5, DL 320, DL 360 G7, DL 320 G4, DL 320 G3, DL 365 G5).
• Apple RAID, Soft RAID, Barracuda Backup server 990, EMC2 VNX 5200, VNX 5600, VNX 7600 and VNX 8000, EMC2 DS 6505. HP Storage works MSA 2000, 1000, HP 3PAR StoreServ 10000 storage, HP 3PAR StoreServ7450 storage, Net gear Storage Unit, Overland Storage REO 4600, Dell PowerVault LTO-5140 Tape Drive, Dell DL 1000, DL 4300.
• Avocent Universal Management gateway, Avocent MergePoint Unity Switches, Checkpoint UTM-1 1070, MGE UPS systems., Cisco Catalyst 2970 series, 3560-C Series PoE, NAC 3315 manager, NAC 3315 Server ASA 5510 Series, 2960-XR, 4506, Dell Router/ Switch power connect 3248, Dell SonicWALL NSA series, Dell SonicWALL E-class Network Security series, CheckPoint UTM-1 570, S-10, Junos SRX210, SRX110.

TECHNICAL SKILLS:

Operating Systems: RHEL 4/5/6, Microsoft Windows 2000/NT/XP/Vista, Fedora. Windows 98, 2000,2003,2008/2010, Ubuntu 12.x/13.x, Sun Solaris 8/9/10, HP-UX 11, IBM AIX 5.xProgramming Languages: Unix Bourne Shell,Korn Shell, PL/SQL, python, awk, Java script, HTML, PHP

Hardware: IBM RS/6000, pSeries 520, 550, 570, 575, 590, 595, 650, 630,670, M80, S80, H70 and H80, z/VM-9 series, IBM ESS (Enterprise Storage Server), DS8000, IBM 3494, 3583 Automated Tape Library, Brocade, SUN Enterprise 450, SunFire 4500,V880, V480,E420R,E450,E250, HP DL 380s and 580s,EMC Symmetrix, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers DELL Poweredge 1650, 2850, 2950, 640

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.x/4.x, VeritasNetbackup 6.0, MS-Office/MS-Project.

Web Servers: Apache/TOMCAT Web Server Administration, DNS, Sendmail.

Security: TCP/IP Wrapper, IP Tables, SELinux.

Virtualization Tools: VMWare ESX 3.0.1 & 3.5.0 Server, vSphere, VMware Infrastructure Client 2.5 &Xen 3.2Network Protocols: TCP/IP, HTTP, SSL, SNMP, SMTP, FTP, SSH, DHCP,UDP, TELNET, Firewalls, Cisco Routers/ Switches.

Storage Devices: SAN, NAS, SUN ZFS 7420/7320, EMC Power Path 4.0, VERITAS SAN Point Manager, VVM 3.1/3.2/4.0, RAID Manager

Backup Tools: Tivoli Storage Management (TSM), Avamar

Databases: Oracle 9i/10g, 11g, DB2, SQL Server

Application servers: Weblogic/Websphere, Jboss

Clustering Software: Red Hat Cluster Suite, VERITAS Clusters, Sun Clusters, AIX HACMP.

Storage Appliances: Netapp (Ontap versions 7.x & 8.x)

Configuration Management Tools: Puppet, Red hat satellite server

Thirdparty Software: VERITAS Volume manager, LVM, LDAP

Antivirus: Symantec Antivirus Corporate Edition, Trend Micro Messaging Suite for Exchange, MacAfee Virus Scan Engine 7.1 / 8i, AVG (Grisoft)

Remote Access Tools: Terminal Services, Net Meeting, Web - Ex, PC Anywhere and VNC for Windows Servers.

Other Tools: Nagios, IPMI, CUPS, Samba, Firewall (Squid, IPTables), FTP, Kick Start, Jump Start, rsync, SVN, splunk, autosys / uc4, TPM, VAS

PROFESSIONAL EXPERIENCE:

Confidential, Bloomington, IL

Senior Linux/Unix Administrator

Responsibilities:

• Installation, evaluation, implementation, automation, integration, analysis, maintenance, and problem resolution for enterprise system software, enterprise server hardware, and storage.
• Installation and configuration of REDHAT Enterprise Linux 5.5/6, Oracle Enterprise Linux 5/6, Cent OS 5/6, Sun Solaris 10, on both standalone and virtual environment.
• 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 connective
• InstalledWeb Logic 8.1 with 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 with 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.
• Experience in Bash and Perl scripts for backup and automation.
• Knowledge in Adobe, Hyperion, development servers.
• Upgrading RHEL 5.0 to RHEL 5.5 using live upgrade and manual upgrade.
• 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 I/O devices,, memory usage and network traffic.
• Troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. Login tothe remote system using sudo, putty, and telnet. Transfer files across the systems on the network used ftp, scp, and rsync commands.
• Experience managing various file systems using LVM and SVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.
• 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.Worked with many hardware devices such as HP Servers (ProLiant DL380 G6, DL360PG8, DL580 G5, DL320 G4, DX 7500, DL 580 G5, DL 365 G5, DL 320, DL 360 G7, DL 320 G4, DL 320 G3, DL 365 G5) Apple RAID, Barracuda Backup server 990, EMC2 VNX 5200, VNX 5600, VNX 7600 and VNX 8000, EMC2 DS 6505, Avocent Universal Management gateway, Avocent MergePoint Unity Switches, Checkpoint UTM-1 1070, MGE UPS systems.

Environment: Solaris 9/10, RHEL 5.x,6.x, OEL 5/6 SUES 4.1, Sun T2000, M4K, M8K, T5140, T5240 Sun Firev890,Sun Firev440, Sun Firev490, HP-ProLiant, IBM Blade, VERITAS Volume Manager, VCS, SVM, VMware ESX.

Senior System Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Red Hat Enterprise Linux 5/6 and Solaris 9/10systems.
• Performed automated installations of Operating System using kickstart for Red Hat Enterprise Linux 5/6 and Jumpstart for Solaris 9/10 Linux.
• As a Red Hat administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
• Installation, configuration of Oracle RAC for multiple computers to use single database. Supported Oracle 10g RAC.
• Remote monitoring and management of server hardware.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Installation and configuration of Veritas Storage Foundation Suite: Veritas Volume Manager, Veritas File System, Veritas Cluster Server.
• Used Puppet tool for managing system configurations.
• Installed and maintained OpenStack on KVM for cloud based applications.
• Hands on experience on various cloud computing products such as Amazon Web Services EC2 and VPC.
• Built virtualized Linux servers on ESXi, Vsphere and Blade servers to host multiple applications on same chassis across different server hosts.
• Set up Red Hat Linux servers for iSCSI LUN boot instead of using local hard disks.
• Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks.
• Configured Sun servers M4000 and M5000 for operational readiness upon OS installation.
• Set up Linux servers for LAMP implementations and readiness.
• Created File systems from local storage as well as NFS partitions for application portability.
• Created Ext4 file system in Red Hat Enterprise Linux and Zeta byte file system (ZFS) in Solaris 10.
• Created zpools. Exported ZFS from local zones to local zones.
• Installing, administering Red Hat using Xen, KVM based hypervisors. RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Installed, configured, and maintained WebLogic 10.x and Oracle 10g on Solaris and Red Hat Linux.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostatetc) and tuned I/O, memory, etc.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5,G6 servers, and HP BL 465C G5 blade centers).
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
• Adding servers to the domain and monitoring them using spectrum, sitescope, cacti.

Environment: Red Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 9,10, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

System Administrator

Responsibilities:

• Maintained and support mission critical, front end and back-end production environments.
• Provided Tier 2 support to issues escalated from Technical Support team and interfaced with development teams, software vendors, or other Tier 2 teams to resolve issues.
• Installations, Configurations, Maintenance and monitoring RHEL 4.0/5.0, Solaris 8/9/10, SUSE and Windows Servers, including oracle instances.
• Worked on A1000 StorEdge storage disk arrays and configured in RAID 0, 1 and 5 levels. Good knowledge in RAID concepts.
• Installation in the patches, Hardware and Software servers.
• Create, analyze, and modify server security configurations.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Install and configure DNS, DHCP, SAMBA, Sendmail, NFS&NIS..
• Create and configure DNS records for internal and external name resolution.
• Implement and Manage network infrastructure such as firewalls, switches and routers.
• Design and Deploy new high available production network with redundant firewalls, load balancers, Linux based web, app and database servers.
• Configuration and administration of Web (Apache) Configuration and administration of Web (Apache)
• Worked on Logical Volume Manager on Linux and Solaris Volume Manager on Solaris.
• Responsible for Server Performance monitoring, analysis and tuning.
• Supported SQL and Oracle Database Servers.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers
• Worked on cronolog in Linux servers for managing the logs of the web servers and performed automation using shell, python scripts.
• Worked with monitoring tools such as Nagios .
• Responsible for managing Amazon AWS Dev instances.
• Performing bench marks on cloud stack as like Amazon AWS to setup private cloud
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0
• Installed and configured VMware ESX server instances for virtual server setup and deployment.
• Responsible for creating VMware virtual guests running Solaris, Linux, Windows.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell Scripts.
• Maintained and monitored all organization servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.

Environment: Solaris 8/9/10, RHEL 4,5,6 (Linux), OEL 5, ESX 4.1, Sun T2000, M4K, M8K, T5140, T5240 Sun Firev890,Sun Firev440, Sun Firev490, HP-ProLiant, IBM Blade, VERITAS Volume Manager,VCS,SVM & Sun Clusters, HP-Unix 11.1 VMware ESX/ ESXi.

Jr UNIX/Linux Administrator

Responsibilities:

• Responsible for day-to-day System Administration for Linux Red Hat and Solaris servers.
• Build the E450 and 6500 Servers with Solaris operating system.
• Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery.
• BIOS UPGRADE and OS installations and configurations and maintenance
• Configuration of Hardware and Software RAID on Digital & Sun Servers.
• Configured VERITAS File system and VERITAS Volume Manager.
• Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.
• Creating User accounts, Mail account, groups, printer etc.
• Set up Quotas for the user accounts & limiting the disk space usage.
• Creation/Configuration of Additional swap/ tmp dynamically as and when required.
• Networking communication skills and protocols such as TCP/IP, Telnet, FTP, SSH.
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.
• Performed tasks on F5 load balancer like installing and renewing SSL certificates and bouncing servers with performance issues after taking them out of the server pools.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Solving the problems as & when created when NFS data being accessed.
• Configuration and maintenance of Apache and Tomcat Servers.
• Modifying/ Writing scripts in Bash and Corn shell for optimizing day to day administration
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Performed administrative tasks such as system startup/shutdown, backups, Printing, Documentation, User Management, Security, Network management, configuration of dumb terminals.
• Systems performance monitoring and troubleshooting end user and application problems.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.

Environment:: Solaris 10/9 Sun E10K and E15K Servers, Sun Enterprise 6500/500/4500/450/ 420 R/250 Servers, Ultra Enterprise 2/1 Servers.ProLiant DL380 G6, DL360P G8.Checkpoint UTM-1 1070 (AXIS, MOUSSA)