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Unix Administrator Resume

RaleigH

SUMMARY:

  • Over 8 years of experience in Administration, implementation, development and support of LAN/WAN networks on multi platforms like Redhat 3/4/5/6 AS 2.1, 3, 4.x, SUSE 8,9,10 &11, CentOS, Solaris 8,9,10 & 11, HPUX 11.0,11,23 &31, IBM AIX 5.x, 6.x and Windows 2000, 2003 and Solaris 7, 8, 9, 10.
  • Experience in configuring Raid-0, Raid-1, Raid-5, ISCSI, IDE, SATA, and creating Logical Volumes, Logical Volume Groups and manipulating them as required.
  • Experience in installing and maintaining the operating systems and configuring networks in HPUX, Solaris, RedHat, SUSE, HP-UX, Ubuntu as well as Windows (NT/2003/XP/2008/7) based environments along with EMC & HDS SAN Environment.
  • Worked on Migration using HPUX & Redhat Logical Volume Manager at Host Level and supported SAN Based migrations.
  • Experience in Installing & Supporting EMC products like OpenMigrator and Powerpath.
  • Experienced with the installation, configuration of Veritas Storage Foundation 3.5, 4.0, 4.1 and 5 and volume management using Solaris Volume Manager (SVM) on Solaris and Logical Volume Manager (LVM) on Linux and experienced in RAID 1, 5, 51, 10, 01 configuration.
  • Creation of whole root and sparse root zones on Solaris 10 and creation of VMs for Windows 2003 and Linux on VMware ESX 4.x and ESXi and administering them with VI Client and VSphere.
  • Experience working with Vblock Infrastructure to perform Virtualization using VMWare ESX, vSphere on RHEL servers.
  • Experience in Linux and HPUX patching using yum and swinstall commands.
  • Experience in applying patches on Solaris and Linux servers.
  • Experience working NAS storage like Netapp and EMC Celerra.
  • Experience in the installation, configuration and administration of virtualization tools like VMWare Infrastructure 3 and Xen 3.x
  • Experience in the implementation of High Availability environment using Veritas Cluster Server 4.1 with agents for Sendmail, WebLogic and NFS.
  • Worked as UNIX systems Engineer supporting different flavors of Unix Servers.
  • Worked with Storage Area Networks (SAN)s which consisted of Emulex 9002, 10000 HBAs, McData Sphereon ES, Brocade ES switches and EMC Clariion, Symmetrix 8830, HDS 9980v storage.
  • Experience working Dev, QA and PROD environments working on Change & Incident requests.
  • Worked on SUN enterprise and midrange servers like SunFire 25K, M5000, M8000, 6900, 6800, 4900, 4800, HP Blade System c7000, DL 380, 580, Dell PowerEdge M600, R900, 2900, 2950.
  • Involved in development on Unix servers mainly Linux using Perl, Python, PHP and MySql.
  • Set up and administered Domain Name Server (DNS) server on SUN Solaris, Redhat and FreeBSD for the Enterprise using Bind. Experience with the installation of applications like Sun One Web Server 6.x, Apache, WebLogic, JBoss, MQ Series, Tibco, Vignette.
  • Experience working with Security, Compliance projects & SOX Audits.
  • Knowledge of network devices which includes Confidential switches, routers and firewalls
  • Excellent understanding of ITIL v3 and experience with creation of run books.
  • Experience working with Backup tools like TSM, AVAMAR and Veritas Netbackup.
  • Experience working DR (Disaster Recovery) for VMWare vSphere environment along with Redhat and Solaris servers.
  • Experience with IT Infrastructure design, implementation with project management skills.
  • Achievement oriented with excellent communication and interpersonal skills. Proven strength in troubleshooting, problem solving, coordination, analysis and a proven track record of success.
  • A good team player with ability to lead a team by example and motivate them to achieve desired objectives. Willing to take on extra responsibilities to get work done.
  • Involved in design, implementation and troubleshooting of complex systems and networks, which spans across multiple protocols, topologies and physical media.

TECHNICAL SKILLS:

Operating Systems: Redhat 6.2, 7.x, 8, 9, RHEL 3.0, 4.x, 5.x, 6.1, CentOS, SUSE 8,9,10 & 11, Windows NT 4.0, XP, 2000, 2003,Solaris 2.6, 7, 8, 9, 10, HPUX 11.0, 11.11, 11.23, 11.31, IBM AIX 5.X,6.X

Hardware: IBM P560, P550, P650, HP Proliant DL 360, 380 G3, G4,G5 & G6, Sun Fire E25K, E4800, E6800, E6900, M5000, M8000, v490, v890, T2000, T5120, T5520, x4100, x4250, 280R, 220R, 420, 450, E4500, 10, 20, rp3440, rp4440, rp5470, rx3600, rx6600, D1000, 3510, 3511, Symmetrix DMX 800, HDS 9980, StorageTek L700e, Dell 6800, 6850, 2800, 2900, 2450, 2400,

Backup Solutions: Veritas Netbackup 4.5, 5, Legato Networker 6.1.x, 7.2.x

High availability: Veritas Cluster server 4.x, Sun Cluster 2.0/2.1, 3.0/3.1/3.2

Volume Management: Veritas Volume Manager/ Foundation Suite 3.2, 4.x, 5, SDS 4.2, SVM, LVM

Web Server: Apache 1.3.x, 2.x, Sun One Web Server 6.x

Application Servers: WebLogic 6.x, 7.x, 8.x and 9, JBoss 3.x, 4.x, 5.x

Database Servers: Oracle 8i, 9i, 10g, SQL Server 2000 & 2005, Sybase

Network: NIS, NIS+, DNS, DHCP, Telnet, FTP, Rlogin

Networking Hardware: Confidential Switches and other routers

Network Protocols: TCP/IP, NetBEUI, PPP, SNMP, SMTP, DNS, NFSv2, NFSv3, FTP and HTTP

File systems: UFS, VxFS, ext2, ext3, ZFS

Tools: SMC, Glance, SAM

PROFESSIONAL EXPERIENCE:

Confidential, Raleigh

UNIX Administrator

  • Configured and maintained Redhat Linux 5/6, Solaris 9/10/11 on Sun Enterprise Servers and Sun SPARC Servers.
  • Used Admintool in Solaris to perform routine administration tasks.
  • Migrate the UNIX hosts authentication from NIS/NIS+ to Active Directory through Quest product Vintela across the Confidential enterprise environment.
  • Perform UNIX administration tasks in Confidential Development, test and production environments with installing, configuring and troubleshooting the client applications on the UNIX servers.
  • Performance monitoring of servers, checking the statistics, identifying bottlenecks on the servers on daily basis and fixing the issues.
  • Deploy No machine XDM2 Application software across Confidential enterprise environment.
  • Configured Kickstart and Jumpstart servers to perform server installations over the network.
  • Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
  • Involved in development using Python, PHP and MySql.
  • Designed and Performed Custom Jumpstart Installation over network and created, maintained install server, boot server and profile server.
  • Configured NFS Servers, Diskless clients and Auto clients and auto mounted the file systems using direct and indirect maps. Also setup entries in /etc/dfs/dfstab in Solaris share file systems and mounted the disks onto the client systems.
  • Created and expanded File Systems on demand from DBA's using Veritas volume manager and also using native UNIX utilities. Designed File System Layouts to improve Performance and Reliability of Oracle and Sybase databases using Veritas volume manager.
  • Configuring and maintaining Print Server using LP print service commands and AdminTool a Graphical user interface used to manage printing on a local system. Configured local and remote printers. Activated printer daemons and queues. Setup default printers and permissions depending on user groups.
  • As a Unix System Engineer Prepared Backup Schedule for Incremental and Cumulative Backups. Configured and maintained legato networker to take backups across the network to tape library. Used nwadmin, nwbackup and nwrecover for backing up and restoring files.
  • Analyzed and troubleshoots bottlenecks involving Memory, CPU, and Devices and Network using ps, vmstat, iostat, netstat, snoop and nfsstat command, tuning the performance.
  • Troubleshooting System, Network, and Operating System issues.
  • Client interfacing for problem Resolution and training .
  • Planned and documented the procedures for auditing the Production Compliance of Servers.

Confidential, Dallas

Sr Linux/UNIX Administrator

  • Installation, Maintenance, Administration and troubleshooting of Linux, Aix, Solaris servers on various hardware platforms that include x86 & SPARC.
  • Managed Linux servers running Applications and also installing softwares and Patch depots on Linux servers.
  • Migrated applications from AIX and Solaris to Linux.
  • Experience in Virtualization using VMWARE ESX to replace OLD HW.
  • Performed automated installations of Operating System using Kickstart for Linux Servers.
  • Extensively worked on hard disk mirroring and stripe with parity using RAID controllers for a failed Hard Disks.
  • Created LAN ID Request for users to access application Servers.
  • Worked on Incidents and Change Tickets in Service Now.
  • Worked on Server reboots issues ( All Confidential servers reboots every week)
  • Worked on Disaster Recovery process which happens every three months.
  • Worked on Apropos calls ( 24/7 on call support for Unix Servers)
  • Troubleshooting issues on Application Servers on Linux, Aix and Solaris Servers.
  • Supported around 5000+ server which carries Linux (Redhat, CentOS & Suse) & Solaris.
  • Installed RPM’s on SUSE & RHEL server using repository and Redhat satellite servers.
  • Worked on HP & Dell x86 HW and also IBM Blade Centers.
  • Trouble shooted issues on RHEL servers and worked on user request (LAN ID requests) and performance issues.
  • As a Unix System Engineer Worked with VERITAS, RHEL LVM and Solaris ZFS to create volumes on SAN devices.
  • Data migration at Host level using Red Hat LVM, Veritas Volume Manager and Solaris LVM.
  • Implemented virtualization for SUSE & RHEL servers using VMWare ESX 4.1.
  • Experience in patching on Solaris quarterly and also involved updating recommended and security patches on the servers.
  • Running EMC grabs and HEAT reports for preparing document for migration.
  • Migrated Data online on Red hat Linux and HPUX servers using EMC Open Migrator.
  • Installation and upgrade of EMC Power path, Host bus adapters.
  • Creating raw devices and migrating data for Oracle RAC cluster and VERITAS Cluster environments.
  • Experience working with NFS mounts from NAS devices like EMC Celerra and NetApp devices.
  • Cold migration on VMware Vsphere client & ESX servers from one data store to other.
  • Data migration on VERITAS clusters from 3par to EMC Vmax array.
  • Experience working with TSM and AVAMAR backup tools to perform backup and restore operations.
  • Build Linux server using kickstart and supported 200+ RHEL servers installations.
  • Good understanding of SRDF and Time finder on EMC SAN.
  • Installation, Maintenance, Administration and troubleshooting of Redhat, CentOS, SUSE Linux, Solaris 8,9,10 and IBM AIX 5.x & 6.x servers on various hardware platforms that include M-Series Servers (5000,9000,etc),Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc.
  • Migrated applications like SAP, Iplanet & Oracle DB from HPUX and Solaris to Linux.
  • Experience in Virtualization using VMWARE ESX and Solaris Zones to replace OLD HW.
  • Performed automated installations of Operating System using Kickstart for Linux and Jumpstart for Solaris.
  • Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
  • Implemented a High Availability Cluster using 2 V480s, a T3 and Veritas Cluster Server 4.1.
  • Configured firewall based on RedHat Linux and FreeBSD 4.x that has three network interfaces.
  • As a Unix System Engineer Involved in configuring and trouble shooting NFS devices over NetApp and NFS servers to NFS Clients like Redhat and Solaris.
  • Experience working with Solaris Live upgrade for patching and OS upgrades.
  • Experience in Host based Migrations using OpenMigrator and Veritas Volume Manager.
  • Developed, customized and build packages on Solaris and rpms on Linux for deployment on various servers through Software Development Life Cycle.
  • Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment. Worked with Apache and developed several UNIX scripts to automate web tasks
  • Managed existing documentation for systems and created new procedures to support new products. Created documentation for disaster recovery project

Environment: Solaris 8,9, HPUX 11.X, RedHat Linux 3.x,4.x,5.x SUSE 9,10, Fedora Linux 1/2/3/4, CentOS, Veritas Volume Manager 3.x, 4.0, Veritas Cluster Server 4.1, M-Series servers, Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc., Websphere, Tomcat Apache, Confidential Routers

Confidential, Atlanta

Solaris / Linux Administrator

  • Installing and upgrading Solaris 9 and Solaris 10 on T2000s, Sun Fire v490, v440, v490, x4200, E2900, E4900, E6900, M5000, M8000 and RHEL 4.x, 5 on HP DL 380 G5
  • Creating sparse root and whole root zones and administered the zones for Web, Application and Database servers and worked on SMF on Solaris 10.
  • Implemented and administered VMware ESX 3.x for running the Windows OS on Redhat Linux Servers on development and test servers.
  • Implemented Jumpstart for Solaris and Kickstart for Redhat environments.
  • Using live upgrade to upgrade Solaris servers from 8, 9 to 10.
  • Implemented HA using Veritas Cluster Server 5.0 for WebLogic agent.
  • Managing DNS, NIS servers and troubleshooting the servers.
  • Worked with Veritas Foundation Suite 5 and performed tasks like creating disk groups, volumes, initializing disks, replacing failed disks etc.
  • Used Sun Volume Manager for Solaris and LVM on Linux to create volumes with layouts like RAID 1, 5, 10, 51.
  • Re-compiling Linux kernel to remove services and applications that are not required.
  • As a Unix System Engineer Performed performance analysis using tools like prstat, mpstat, iostat, sar, vmstat, truss, Dtrace.
  • Upgraded Clear-Case from 4.2 to 6x.
  • Upgraded Solaris & Linux to Latest versions like RHEL 6.X and Solaris 10.
  • Patching of OS on mirrored servers after detaching and re-attaching the sub-mirrors.
  • Implemented the monitoring tools like Nagios 3.0 to monitor services like CPU, Hard Drive, Memory, Users, HTTP, SSH etc.
  • Worked on day to day administration tasks and resolve tickets using Remedy.
  • Used HP Service center and change management system for ticketing.
  • Troubleshooting and performance tuning issues with applications like Oracle 10g, JBoss 4.x, WebLogic 10, MQSeries 6.x and the operating systems which included Solaris and RHEL.
  • Worked on the administration of the WebLogic 9, JBoss 4.2.2 servers including installation and deployments.
  • Worked on F5 load balancers to load balance and reverse proxy WebLogic Servers.
  • Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers.

Environment: Solaris 8, 9, 10, RHEL 3, 4.x, 5, Veritas Storage Foundation 5, Veritas Cluster Server 4.1, VMware ESX 3.x, Sun Sparc Enterprise T5140, T2000, SunFire 4800, 6800, 6900, M5000, M8000, SunBlade1000, SunFire490, SunFire880, SunFire240, SunFire 440, HP DL 380 G5, Sun Storedge 3511

Confidential

UNIX / Linux Administrator

  • Installing, configuring and updating Redhat Linux 5.x, AS 3 and 4.x servers using Kickstart.Solaris 8, 9, 10 servers using media, live upgrade and Jumpstart and Experience in the creation of Containers, Zones with Solaris 10.
  • Worked on LDOMs on T2000 servers.
  • Experience working with IBM Power servers running AIX 5.3 on P5 and P6 servers.
  • As a Unix System Engineer Extensive use of volume management tools like Veritas Volume Manager 4.1 to create disk groups, volumes with RAID 5, 01, 10, 51 architecture and Solaris Volume Manager to create layered volumes.
  • Worked on the Apache 2.x for the configuration of Name Based Virtual Hosts and IP Based Virtual Hosts and generating SSL Certificates .
  • Worked with the Oracle DBA teams for the configuration of file systems, performance tuning of the OS and the installation of Oracle 9i, 10g on both Solaris and Redhat environments.
  • WebSphere Installation and Administration including creation of Cells and Clusters and deployment using deployment manager profiles.
  • Creating, Mounting and Troubleshooting NFS File systems on different OS platforms.
  • Configuration and administration of DNS servers using BIND 8.4.6 on Linux as the Operating System
  • Installed & configured Clear-case 6x for Version control on RHEL 4.
  • Configuring Windows 98/NT/2000 clients for Solaris /NT servers using Samba 2.2.12.
  • Installed & configured Win-2003 Server & MS-Exchange-2003.
  • Working 24/7 on call for application and system support.

Environment: Solaris 8, 9, 10, Redhat Linux AS 2.1, 3, 4.x, HP-Unix 10.0/11i, SunFire E25K, SunFire 6900, 4900, v880, v490, v440, v240, v210, Enterprise 450, Sun Blade 100/150, Netra T1, HP DL 385, 580, HP rp7410, 7400, L3000, N4000/V2600, Sun Storage Array D1000, T3, 3510, Storagetek L700, NetApp V Series, McData Sphereon 4500, HDS 9980v, Veritas Volume manager 4.1, Veritas Cluster Server 4.0, Apache 2.x, WebSphere 6.x, MQSeries 6.x

Confidential

UNIX/Linux Administrator

  • Installation, Maintenance, Administration and troubleshooting of Sun Solaris 8,9 and Redhat 9, AS 3.0 servers on various hardware platforms that include Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc.
  • Performed automated installations of Operating System using Jumpstart for Solaris and Kickstart for Linux.
  • Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
  • Implemented a High Availability Cluster using 2 V480s, a T3 and Veritas Cluster Server 4.1.
  • Configured firewall based on RedHat Linux and FreeBSD 4.x that has three network interfaces.
  • Configuration and administration of Linux application servers, X-terminals and Diskless Workstations. Providing day-to-day user administration like adding/deleting users and managing users’ queries. Shell programming for routine administration tasks. Analyzing & monitoring system performance through various system tools such as netstat, iostat
  • As a Unix System Engineer Developed, customized and build packages on Solaris and rpms on Linux for deployment on various servers through Software Development Life Cycle.
  • Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment. Worked with Apache and developed several UNIX scripts to automate web tasks
  • Managed existing documentation for systems and created new procedures to support new products. Created documentation for disaster recovery project

Environment: Solaris 8,9, RedHat Linux 7.x/9,AS 3.0, Fedora Linux 1/2/3/4, CentOS, Veritas Volume Manager 3.x, 4.0, Veritas Cluster Server 4.1, Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc., Confidential Routers

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