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Unix system Administrator

Location:
Irving, Texas, United States
Posted:
August 24, 2018

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Resume:

Vinjamuri seema

ac6svt@r.postjobfree.com

214-****-***

UNIX Admin

Professional Summary:

•Over 6 years of experience in Information technology with strong experience in Sun Solaris (8/9/10/11), Red hat Linux (4/5/6), IBM AIX (5/6.1) and Windows Server 2008, 2012 R2.

•Expertise in administration of Sun Solaris, RHEL Windows and IBM AIX for production environment.

•Building Sun servers with Solaris 10 using Jumpstart, AIX using NIM installation and RHEL with 4/5/6.

•Monitoring and administering Sun Solaris servers and clients in open systems environment, and Red Hat Linux on Enterprise class servers for operating systems, software, patches, hardware and drivers.

•Creation of Logical Volumes, File systems using Solaris

(SVM,ZFS),Red hat (LVM) and Symantec VERITAS (VXVM).

•Experience of Shell & PERL scripting, to automate daily tasks.

•Strong knowledge over the server virtualization technologies like Solaris (zones, LDOMS), Red Hat VM and AIX Lpars.

•Provide support for common and advanced system administration responsibilities including backup and restore.

•Experience on VERITAS clustering (VCS 5.x, 6.x) and VERITAS replication (VVR).

•Networking communication skills and protocols such as TCP/IP, NFS, DNS and SMTP.

•Experience with Installing, configuring and restoring backup using EMC AVAMAR, VERITAS Net backup.

•Managing user accounts, system security, performance tuning, change management, documents and procedures.

•Excellent skills in analyzing, designing, implementing and system integration, Knowledge on switches, Routers, Firewalls, Internet.

•Possess Good Communication Skills and Interpersonal Skills. SelfMotivated, Quick Learner and Supportive Team Player.

•Provided production support in an on-call rotation in 24x7 environments.

Technical Summary :

Hardware

SUN SPARC M-series M4000/M5000

T-series T5120/T5140/T5220/T5240

IBM P750/P770/p570/p520

Operating Systems

Solaris 11/10/9/8/

Aix 6.1/5.3

RHEL 3/4/5/6

Windows 2003

Windows 2008 R2

Windows Server 2012R2

Servers / Services

Apache, tomcat, Unix (NIS, NFS, SSH & Samba).

Security

Check Point Firewall, TCP/IP Wrapper.

Networking

NIS, NIS+, DNS, NFS and auto FS, LAN, WAN, Firewalls

Tools

Remedy, Big Brother, Nagios

Professional Summary:

Client: IBM (State street (GIS,AIS))

Duration: April 2012 – March 2015 Designation: UNIX Systems Administrator

Responsibilities:

•Installed and configured Solaris 10/11, Redhat Linux 5/6.

•Experienced on VERITAS Volume Manager and VERITAS file System (VXFS) on new/existing production/development systems

for reliability, fault tolerance, and availability in SAN environment.

•Adding EMC LUNs and reclaiming EMC LUNs under VERITAS vxvm.

•Experienced administering VERITAS vxvm, VCS on Solaris and AIX Platforms.

•Working on Installing VCS agents for Oracle, Sybase, troubleshooting fail over issues, resource management.

•Setup VERITAS Volume replicator for disaster recovery site.

•Configured and administered NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.

•Installing,configuring and administering DNS, NFS,LDAP,DHCP,SAMBA,APAche and Mail servers, on Solaris, Red hat Linux.

•Applying software maintenance, program fixes and keeping the system software releases current.

•Maintaining appropriate file and system security, monitoring and controlling system access, file access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users, monitoring status of process in order to increase the system efficiency.

•Monitoring the servers and network performance by using IBM SRM monitoring tool, Big brother tools.

•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.

•Provided customer support, help/troubleshoot users to resolve server, network, and other system wide problems.

•Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.

•Installing and configuring LDAP on Solaris, AIX and windows Expertise in making user groups. .

Environment: Solaris 9/10/11,Redhat5/6,AIS 6.0

Client: United Nations (United Nations Joint staff

Pension Fund)

Manhattan, NYC

Duration: June 2011 – March 2012 Designation: Solaris/AIX Systems Administrator

Responsibilities:

•Build and supported Solaris 10 on SPARC servers M-series and Tseries.

•Build Redhat 5 and Redhat 6 virtual machine on VMware ESXi 4.1 Created AIX LPAR version 5 and 6.1 on IBM Power series.

•Experienced in supporting servers remotely and at Datacenter Locations.

•Installed, Configured and supported EMC Avamar backup on Solaris, RHEL and AIX.

•Installed and configured third party software as required by the Application.

•Installed and Configured EMC Powerpath, Nagios Monitoring tool.

•Adding EMC LUNs to Servers for ongoing space requirements, working with Storage team on EMC Symmetrix, EMC DMX-3 Storage Arrays.

•Experienced and worked on Solaris (SVM and ZFS), AIX (LVM) and RHEL (LVM) like creating volume groups, ZFS pools, Adding disks, removing disks and increasing existing File systems.

•Applying latest software and security updates on RHEL using YUM and up2date.

•Installed and Applied patches on Solaris 10 using Solaris Live Upgrade.

•Converted Physical Linux servers to VMware virtual server (P2V).

•Migrated LPAR from p5 to P7 using LPM.

•Configured sendmail, NFS, SAMBA, PRINTER on Linux and AIX systems.

•Setup kernel parameters on Solaris 10, Redhat Linux 5 and AIX

6.1.

•Configured static route and troubleshoot network related issues.

•Troubleshoot and solved performance related issues on systems running different applications..

•Programmed bash and Perl script to monitor disk usage on critical servers.

•Logging calls and opening service request with Oracle, Redhat, IBM, and EMC for resolution of critical problems.

•Achieving systems uptime close to 100%, creating outage tickets, closing assigned tickets

•Implemented and maintained new and existing corporate production, DMZ and development of VMware infrastructure clusters running on Linux server.

•Experience in analyzing logs, problem determination, Recovery and restart.

•Assisting users & teammates to resolve day-to-day administration problems on production servers.

•Troubleshoot hardware and software problems and interacted with IT staff and vendors in performing complex testing, support and troubleshooting functions.

Environment: Sun Solaris 10, RedHat Linux 5/6,VMware.

Client: IBM (BP),Houston, TX

Duration: May 2010 – May 2011 Designation: Solaris Systems Administrator

Responsibilities:

•Responsible for Installation, Configuration Management, Maintenance Solaris and AIX server.

•Responsible for installing, configuring and maintaining AIX servers including the logical partitioning on p690 and p650 servers.

•Responsible for the operation, maintenance and integrity of a distributed, networked Sun Solaris based environment.

•Worked closely with DBAs to install raid, disk areas for Oracle database instance installations, created Bourne shell database startup and shutdown scripts for UNIX servers.

•Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.

•Performed hardware upgrades on Sun and Linux servers.

•Maintained and monitored business application on Sun and Linux servers

•Applying software maintenance, program fixes and keeping the system software releases current

•Monitored trouble ticket queue to attend requests and system calls.

•Experience in setting up clusters and creating repository queue managers for load balancing.

•Experience in analyzing logs, problem determination, and Recovery and restart.

•Extensive use of LVM, creating Volume Groups, Logical volumes, and disk mirroring.

•Performance Management & Tuning of AIX UNIX Kernel.

•Perform User Account management, data backups, and users’ logon support.

•Develop Shell scripts (Korn/Bash) for automating the batch jobs.

•Responsible for configuring IBM 2105 shark for the external storage.

•Ensured server data integrity by evaluating, implementing and managing software solutions like SysBack, Tivoli Storage Manager, BMR (Bare Metal Restore) and hardware solutions like

IBM Shark, Tape Libraries and EMC Symmetrics Storage devices.

•Helped to establish standards, policies and procedures for all aspects of Unix server environment (e.g., configuration, administration, documentation, etc.)

•Work with DBAs on installation of oracle, restoration and performance tuning.

•Attend team meetings, change control meetings to update installation progress and upcoming changes in environment.

Environment: Sun Solaris, Veritas Volume Manager, Sun Disk Suit, VCS.



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