Manager Management

Vignan Dv Email: ******@*******-*************.***

Sr. Linux/Unix Administrator Contact Number: 972-***-****

Summary:

Above 7 years of IT experience in System Administration under heterogeneous environment of Redhat Linux

4.x/5.x/6.x/7.x, CentOS6, SuSE Linux 10/11, Sun Solaris (8/9/10), HP-UX (11.x), AIX (5.x), and Windows

2003/2008.

Expertise in Installation, Configuration and file system management through VERITAS Volume Manager,

VERITAS File System, Solstice Disk Suite and Logical volume Manager (LVM) with multiple RAID Levels.

Extensively worked on administering NIS, NIS+, NFS, DNS, DHCP, and Mail Servers.

Experience with file/disk encryption technology/products on servers, worked on Vormetric Data Security tools and

File System Encryption.

Extensive experience on patching up Unix/Linux servers & decommissioning unwanted old servers using

virtualization techniques to make the client environment more reliable & profitable.

Experiences in Server build using Kick start, Jumpstart.

Extensively involved configuring & administering SAN Devices & Other Storage solutions like Power Path,

Native mulitpathing & Veritas DMP.

Extensive experience in UNIX performance monitoring and kernel tuning and Load balancing (F5 Load Balancer)

to ensure stable performance.

Proficiency in VMW is Installation and monitoring Virtual environments with ESX 4.xServers and Virtual Center.

Experience in installing, configuring and monitoring VERITAS Cluster Server (VCS), Redhat Cluster Server, Sun

Cluster Server and HP Service Guard in High Availability Environment.

Experience in using puppet and chef for OS configuration and automation.

Extensive experience in configuring Global File System (GFS) and Zettabyte File System (ZFS).

Worked on installing and configuring VMware/Esx Servers for virtualizations.

Familiar knowledge in the AWS services

Extensive experience in KornShell and Perl Scripting, SQL, and knowledge on Python.

Devise strategies for Disaster Recovery Management (DR), including planning and designing servers for back up,

recovery and archival of server / database information.

Widely worked on Disk and File system management through Logical Volume Manager (LVM) on HP-UX, Linux

and Solaris Volume Manager (SVM)

on Solaris.

Advance level of experience in researching OS Issues, applying patches and opening the Vendor Tickets like

Remedy, RedBox.

Strong working knowledge of Routers and Switches, VLAN, TCP/IP, VPN, OSI model, Firewall (checkpoint),

VOIP and Sarbanes Oxley compliance (SOX).

Worked on Citrix XenApp and knowledge of Citrix Web Interface.

Technical professional with management skills, excellent business understanding and strong communication skills.

TECHNICAL SKILLS:

Operating System Red Hat Linux 4/5/6/7, SuSE 10/11,Ubuntu 6.x/7.x, Solaris 11/10/9/8, HP-UX

(11.x), IBM AIX (5.x, 6.x) &Windows 2000/2003/2008

Hardware Sun SPARC T5-2/M4000/M3000, Sun X3-2L, X4440, X4150, Sun Enterprise

E5000/5500/6500, Sun Fire 3800/4800/6800, E10K/15 Series server, TSeries,

MSeries Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class,

K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade

Servers.

Third Party Tools Veritas Volume Manager, Logical Volume Manager, RAID, Redhat Cluster, Veritas

Cluster, Sun Cluster, HC Service Guard, VMware ESX.

Web Application Server Apache, WebSphere, Weblogic, Tomcat.

Network/Naming Services NIS, NFS,DNS, DHCP.

Storage SAN, NAS, DAS EMC Storage, SAS, HP and IBM Storage, HDS.

Languages Unix Shell Scripting, Perl Scripting, HTML.

Professional Experience:

Client: Modern Engineering, Auburn Hills, MI May2014 till date

Role: Linux Administrator

Responsibilities:

Installation, configuration and upgrade of Solaris 8/9/10, Redhat Linux 4/5, HP-UX 11i and

IBM AIX operating systems.

Provided system supportfor2000+ Linux/Unix Servers including routine maintenance, patching,

and system backups and restores, and software and hardware upgrades.

Worked on building new SUSE & Redhat Linux servers, supported lease replacements and

implementing system patches using the HP Server Automation tool.

Experience with VMware Virtualization using ESX hypervisor of Vsphere 5.1.

Configuration, implementation and administration of Clustered servers on SUSE Linux

environment.

Experienced in system administration, System planning, co-ordination and group level and user

level lmanagement.

Expertise in creating and managing Logical Volumes in Linux.

Experience on backup and recovery software like Net backup on Linux environment.

Systems and network Planning and Administration.

Supported production systems 24 x 7 on a rotational basis.

Understanding of Microsoft System Center: Creating and Implemented Changes on servers and

documented the change in the Microsoft System Center for future reference.

Resolved Security Access Requests via Peregrine Service center to provide the requested User

access related requests.

Expertise in Installation, Configuration of Package and Patch Management.

Handling and generating tickets via the BMC Remedy ticketing tool.

Experience with HP Gen 8 blade servers and rack mounted servers.

Coordinated Hardware configuration, installation and management as well as. Configuration of

ILOs and Console connections for HP Gen 8 Blade and Rack mounted servers.

Experience with setting up Linux servers for Oracle Real Application Clusters and configuring

SAN based mount points.

Excellent Project Management experience.

Expertise in Performance Monitoring and Performance Tuning using Top, prstat, sar,

vmstat, ps, iostat etc.

Creating new file system, managing & checking data consistency of the file system.

Created new file systems using Raw Device Mapped luns, Virtual Disks and SAN storage as per

required.

Successfully Migrated virtual machines from legacy Virtual environment Vmware Vsphere 4.1 to

new Vmware Vsphere 5.1.

Successfully upgraded SUSE Linux 10 to SUSE Linux 11 on an Oracle production standby

server without losing any of the database information.

Documented the procedure of Obsoleting servers resulting in considerable reduction in time

and mistakes for this process as well streamlining the existing process.

Installation and configuration of Veritas Volume Manager (VXVM), Veritas file system

(VFS). Implementation of RAID techniques and creation disk groups and volumes, plexes using

Veritas Volume Manager 4.1. Managing disks and file system using VeritasVolume

Manager(VxVM), Solaris Volume Manager (SVM) in Solaris Servers and using Logical Volume

Manager, HP Service Guard in HP-UX and Linux servers

Communicated and Coordinated with customers internal/external for resolving issues for

reducing downtime.

Experience in Disaster Recovery and Planning.

Problem determination, Security, Shell Scripting.

Supported after-hours to meet deadlines as well as for operational support as required.

Proven experience in end-to-end problem determination/troubleshooting system issues.

Thorough understanding of networks and storage systems.

ENVIRONMENT : Solaris 9/10/11, Redhat Linux 4/5/6/7, HP-UX 11i, AIX, Sun Enterprise Servers TSeries, MSeries

and Fijustu x86 servers, HP 9000K, L, N class Server, HP & Dell blade servers, IBM RS/6000, p Series servers, VMware

ESXi Server, Oracle.

Client: eBay Enterprise,king of Prussia, PA. Mar 2012 Apr 2014

Role: Unix/Linux Administrator.

Responsibilities:

Installation, configuration and upgrade of Solaris 8/9/10, Redhat Linux 4/5/6, HP-UX 11i and IBM AIX

operating systems.

Configured and installed Solaris, HP-UX and Redhat Linux Servers using jumpstart and kick start.

Implementing file sharing on the network by configuring NFS on the system to share essential resources.

Worked on building and supporting Solaris8, 9 & 10 on Sun Midrange platforms and IBM AIX

Midrange platforms.

Worked on performance tuning in Solaris, Linux & HP-UX.

Performed package and patching management and debugging in all flavors of Unix& Linux.

Experience in using puppet and chef for OS configuration and automation.

Expertise in capacity planning and migrations in HP-UX.

Well knowledge in documentation of architectural design and build engineering Documents and SOWs.

Worked on installation and monitoring of VMW are virtual environments with ESX 4.x servers and

Virtual Center.

Troubleshooting and analysis of hardware and failures for various Solaris servers (Core dump and log file

analysis).

Installation and configuration of Veritas Volume Manager (VXVM), Veritas file system (VFS).

Implementation of RAID techniques and creation disk groups and volumes, plexes using Veritas Volume

Manager 4.1. Managing disks and file system using Veritas Volume Manager (VxVM), Solaris Volume

Manager (SVM) in Solaris Servers and using Logical Volume Manager, HP Service Guard in HP-UX

and Linux servers.

Built high-end servers, creating and loading images on Solaris, HP-UX and Linux servers using

System Imager tool.

Installed, configured and managed Oracle Real Application Cluster (RAC) in Solaris, HP-UX and Linux

servers.

Patch and Package administration for installation of patches as per company policy and installation of

packaged application.

Expertise in Global File System (GFS), Creating, configuring and managing clusters in Redhat Linux

Servers using GFS.

Installed, configuredandmanaged Redhat Cluster Suite in Linux servers.

Worked on live upgrades in Solaris and HP-UX servers. Configured and managed Zettabyte File System

(ZFS) in Solaris, HP-UX and Linux Servers.

Planned and implemented migrations from lower end to higher end in OS level and Hardware level in

Solaris, HP-UX and Linux servers.

Configured and managed Redhat satellite Network server, performing package management tasks and

errata updates.

RPM package administration using RPM Build.

Performed Data Backup and Recovery using Veritas Net Backup (VNB).

Update the systems using Redhat Enterprise Network (RHN), Managing and monitoring through RHN.

Knowledge of DAS, NAS and SAN concepts and technology. Also got knowledge in HA, Clustering, LAN.

Responsible for setting up a disaster recovery plan for the servers, which includes in development of

programs for synchronized backups.

Worked on installing and configuring VMware/Esx Servers for virtualizations.

Performed documentation of architectural design and build engineering Documents and SOWs.

Knowledge and experience on Kerberos setup.

Configured and maintained Network Multipathing in Solaris and Linux.

Environment: Solaris 9/10, Redhat Linux 4/5/6, HP-UX 11i, AIX, Sun Enterprise Servers E5500/E4500, Sun Fire

V1280/480/440, HP 9000K, L, N class Server, HP & Dell blade servers, IBM RS/6000, p Series servers, VMware ESX

Server, Oracle.

Client: Verizon Wireless, Dallas, TX Aug 2010 Feb2012

Role: Linux /UNIX System Administrator

Responsibilities:

Installation, configuration and upgrade of Solaris 9/10, Redhat Linux 3/4/5, HP-UX 11i, AIX 5.3 operating

systems.

Configured and installed Solaris, HP-UX and Redhat Linux Servers using jumpstart, Ignite, and Kick start .

Worked on Creating Local zones and Branded zones on Solaris Containers global zone and migration of the

applications on to these zones from the physical servers.

Experience in installing, configuring and monitoring VERITAS Cluster Server (VCS), Service Guard and Redhat

Cluster ServerinHigh Availability Environment.

Applied recommended OS Patches, Kernel upgrades using Solaris Live Upgrade on Production and

development 2servers.

Worked on Live Upgrade, migrating from UFS root file system to ZFS file root system using lucreate,

luupgrade, luactivate.

Performing periodic HBA (LPFC, QLC) firmware and driver upgrades for proper and smooth

operation of Tivoli Storage Manager(TSM).

Configured Solaris IPMP and Linux Bonding. Worked on Storage multipathing.

Extensive experience in configuring Global File System(GFS) and Zeta byte File System(ZFS).

Worked on installing and configuring VMware/ESX Servers for virtualizations.

Creating metadevices, mirror & maintained root disks using Solaris Volume Manager(SVM).

Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk

mirroring in HP-UX, AIX and Linux.

Involved in Configuration of Control domain on T-series servers and creation of Guest LDOMs on them for each

different applications.

Create automated Jumpstart environment for Solaris standard builds for WEB, APP and DB servers.

Supported Oracle RAC (Real Application Cluster) Servers running on Linux with GFS and Solaris

with SFRAC.

Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using PS,

vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.

Tuning of TCP/IP, LOM,and System Controller(SC) in cluster environment.

Package management using RPM, YUM and UP2DATE in Red Hat Linux.

Developed technical documents like handbooks, document installation configurations, and proposed

resolutions for support processes.

Responsible for Daily Backup maintenance through Tivoli Storage Management(TSM).

Provide technical assistance to the application development area and co-workers about system analysis,

design and programming.

Communicate with the user community and co-workers to assess needs, resolve problems, and provide

technical assistance where necessary relating to UNIX administration functions, and software running on

UNIX platforms such as Apache, WebSphere and Oracle9iAS and COTS third party software.

Assist in the creation of policies and procedures that will be sent through a formal clearance process.

Environment: RHEL 5.x/4.x, Solaris 8/9/10,HP DL580-DL380 G3,G4,G5,Dell Power Edge, IBM blade servers,

Websphere 5.x/6.x, Apache 1.2/1.3/2.x, iPlanet, Oracle 11g/10g/9i, Logical Volume Manager, Veritas net backup 5.x/6.0,

SAN Multipathing (MPIO, HDLM, Power path), VM ESX 3.x/2.x.

Client:Life Insurance Corporation, India Jun 2009Jul 2010

Role:Unix/Linux Systems Administrator

Responsibilities:

Installation, Configuration & Upgrade of Redhat/SuSE Linux, Solaris and Hp-UX operating system.

Configuring NFS, NIS, NIS+, DNS and LDAP.

Worked on Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center

with minimal downtime.

Excellent in Configuring and Administering NFS, SMTP, DHCP, samba in heterogeneous environment.

Performed automated installations of Operating System using Kick start and Jumpstart for Linux and Solaris.

Configured and used yum repository for packages and patches installation in Linux environment.

Worked on Installation and configuration of VMW are ESX servers.

Installation and configuration of Logical Volume Manager, Veritas Volume Manager, Veritas File System, Veritas

Cluster Server.

Extensive use of volume management tool using Veritas Volume Manager to create disk groups, volumes with RAID

architecture and layered volumes.

Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created

file systems on local and global zones.

Created Zettabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.

Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.

Expertise in setting up System Imager software for automated installation, software distribution,

configuration changes and operating system updates to a network of Linux Machines.

Experience in Redhat Cluster Suite and Global File system, Redhat Network Satellite Server.

Creating metadevices, soft partitions, mirroring the devices and metasets.

Space allocation to the metadevices, detaching and clearing the devices if not in use.

Troubleshooting and building high end servers and midrange servers.

Performed automated installations of Operating System using Jumpstart for Solaris, kickstart for Linux and Ignite for

HP-UX.

Environment: Solaris 10/9/8,Linux RHEL 5, SuSE Linux 10.x, Sun Fire 6800/E6500 Server, E10K/25K, T2000/T5000,

M5000, HP L/N/RP series,IBM Power 570,p5 505 Express servers,Ubuntu 6.x/7.x, Apache,SAN EMC/HP/Hitachi,

Veritas Volume Manager, VCS, Veritas Netbackup.

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