Summary


P. Vinay
UNIX System Administrator



Having 6+ years of experience as UNIX System Administrator
Installing and maintaining of AIX 4.3, 5.1, 5.2 and 5.3 on IBM P series servers and Solaris 910 on SunFire server both high and mid range.
Installation, Administration and Integration of several Unix Systems, Sun/IBM/Linux.
Build and Administration of several Sun s SunFire servers
Build and Administrator of IBM s p650 and IBM p570 with LPAR s running AIX 5.x& Linux.
Installed, configured and supported Solaris 8/9/10, AIX 4. x/5 .x, Linux 2. x/3. x/4 .x, mission critical servers 24/7 with remote administration and support also.
Cluster Administrator, working with Sun Cluster and IBM HACMP
Worked on AIX Migration Installation, Preservation Installation and Complete Overwrite Installation using CDROM and Network Installation Manager NIM.
Installed, upgraded and configured Solaris, Linux web servers, SAMBA, proxy servers
Resolved system errors, crashes, disk space problems, file system errors
Strong in LVM Storage Methodology, Performance monitoring, Error logging, Diagnostics, Dumps and Fine-tuning.
Good experience in Administration Concepts like Virtualization, logical partitioning LPAR and Dynamic LPAR using HMC Administration tools, Workload Manager
Good experience on Sun Virtualization/Container based creation of Zones, svcadm-Services management facility
Working knowledge of veritas volume manager and ZFS file system, sun cluster and good understanding of veritas cluster.
Maintain EMC ClariiON and Symmetrix storage arrays using LVM to provide reliable data access with high levels of availability.
Experienced in creation of Agents, Resources and Groups and setting up of dependencies for different services in the clustering Environment.
Strong in networking concepts, TCP/IP protocols, Routing and Subnetting.
Responsible for day-to-day operation of DNS, DHCP, CVS, UNIX account management, NIS+/NFS and backups.
Provided technical support, consultation and guidance for Software Engineers, Database administrator and junior-level UNIX SA s
System administration and performance monitoring tasks
Kernel upgrades/build/modify/patches and kernel tuning to enhance the system performance
Proficient in configuring TCP/IP, DNS, NFS, NIS, FTP, SAMBA, SSL, LDAP, SSH, SMTP, SNMP etc.
Good experience with VMWARE Server 1.0.7 ESX Server and VMWARE Workstation 6.0.
Trouble shooting the booting operations in SPARC and i86pc.
Experienced in Installation of OS, packages, Configuring the Systems, adding peripherals, maintaining user accounting, System Security, setting up NFS, AUTOFS, regular backup/recovery, performance tuning, Troubleshooting at various levels etc.
Worked on Sun Virtualization/Container based Creation of Zones, svcadm-Service management Facility of VMware Virtualization.


Employment

April, 2008 -  Present
Role : UNIX System Administrator

Responsibilities : Responsible for Installation of Operating System and Upgrading of OS, Implementation of various installation methods.
Extensively used LVM - created VGs, LVs and disk mirroring for IBM p-series servers.
Configuration management, the building of LPARs using HMC and configuring the hardware devices that support them.
Implement, install and support high availability cluster on IBM RS6000 platform HACMP for AIX and Sun Cluster High Availability architecture for critical applications
Responsible for adding and removing packages, adding the patches, adding unbundled software and packages to AIX, Solaris and Linux servers.
Installed, configure Power path. Setting up HACMP Clusters for Oracle 9i server.
Tune systems, applications and processes for maximum performance

Administration and trouble shooting skills on Disks and File Systems, Users and Groups.
Setup of full networking services and protocols, NIS/NFS, DNS, SSH, DHCP, TCP/IP to insure optimal networking, application and configured DNS, Apache HTTP servers.
Duties include server builds utilizing NIM, Jumpstart and Kickstart technologies.

Provide training for other technicians to support system and wrote technical manuals for the system
Perform daily administrative tasks, log reviews, account, group, system accessibility issues and server software maintenance.
Provide 24x7 support on shift rotation basis

July, 2006 -  March, 2008
Role : UNIX System Administrator

Responsibilities : Perform UNIX system administration duties, on mission critical machines and non-mission critical servers in Data Centers.
Performed system administration duties on Solaris, AIX and Linux operating systems.
Created metadevices, hot spares and maintained concatenated and striped devices and Implemented data redundancy through mirroring.

Troubleshooting skills for a variety of hardware and software platforms.
This included installation, configuration and maintenance of Solaris 10 zones Virtualization, along with automating changes in the environment.
Implemented Security Hardening per company policy using Solaris 10 feature.
Installed oracle on both Solaris and AIX and knowledge on Veritas Volume Manager and Net backup Vxfs, VxVm
Worked on Solstice Disk Suite along with Solaris Volume Manager
Monitor System Performance Parameters using iostat, vmstat and fine-tuning
Daily tasks include : patching, performance tuning, troubleshooting and replacing failed hardware.

Developed and Maintained Kshell, Perl Scripts to automate the Startup and Shutdown ; monitoring network traffic at a specific time ; performing backups ; monitor process/jobs status.
Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment
Test and install various patches Fix Packs on the servers to solve the problems encountered by the applications running on the servers.
Provided high end software and hardware support for the entire family of Sun Servers.
Operating Environment installations and upgrades, NFS, NIS administration, Mail server installation and management using Send mail and Postfix, DNS server installation and management using Bind, Secure Shell deployment and AIX and Solaris server administration.
Production monitoring tool : HP_OVO : Windows, HP Open View and Performance management.
Worked on AutoSys : for job control for scheduling, monitoring and reporting

Worked on VMware V Motion Technology for migration of virtual machine from 1 server to other server without any downtime.

May, 2005 -  June, 2006
Role : UNIX System Administrator

Responsibilities : Overall support, custom installation services for servers, hardware and software troubleshooting, pre-planning and design of server implementation.
Software and Hardware upgrades of AIX systems.
Install and manage 20 systems for various production and development projects running on AIX with Oracle.

Experience with AIX LVM, User and System Resource Management, Job Scheduling, Work Load Manager and Paging Space Management.
Troubleshooting and Disaster Recovery. Patch administration.
Troubleshoot message queues, inter-process communication, paging and swapping.

Experience in creating CRON jobs to automate various system administration tasks using Crontab Utility
Provided technical support for Backup Team, tasks include day-to-day operations. Tape restores, Snapshot restore, hardware and software troubleshooting.
Coordinate with DBAs, users, developers and vendors
Document installation procedures, changes required in present environment.

January, 2004 -  April, 2005
Role : UNIX System Administrator

Responsible for Installation of Operating System and Upgrading of OS, Implementation of various installation methods, adding and removing packages, adding the patches, adding unbundled software and packages to Solaris servers.
Performing System Storage management/LVM tasks like creating volume groups, PV s, LV s and File system, mirroring, VG s, LV s and mounting file systems. Configuration of new devices using cfgmgr faulty disk Replacement incase of any disaster.
Highly skilled in using the Open Boot PROM or Firmware Commands

Education

Training

Solaris Certified System Administrator SCSA Solaris 10
Cisco Certified Network Associate CCNA
Microsoft Certified Professional MCP



Skills

UNIX : Solaris 8, 9, 10 AIX 5L 5.15.2, 5.3 RedHat Linux,, SUSE, HP-UX 11.22 Storage : Solaris Volume Manager AIX Volume Manager, HACMP Veritas Volume Manager familiarity SUN Clustering, ZFS file system SAN/NAS/DAS familiarity Networking : NFS, DNS, NIS and NIS+ Network Protocols TCP/IP, TELNET, FTP, SSH, ARP, DHCP, SMTP, TFTP, PPP, RARP, RIP, OSPF, BGP, FIX and POP3 Network Essentials-OSI, LAN/WAN, Switches, hubs, Routers Cisco 1700 and 3600 series. Hardware : Sun Fire 280R/V480/4800/3800/12K Server, Sun Enterprise 4500/6500/450/420R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, SPARCstation 10, Sun SPARC Ultra 1510, HP-9000 K, L, N series, IBM RS/6000 and pSeries, December DS20, ES40 RDBMS : MySQL 4.x, Oracle 8.x,9.x Languages : C, Java, Bash, K shell, Perl, python, C shell programming, asp.net and SQL Operating Systems : Sun Solaris 9OS, 10OS, AIX 5L .X, RHEL, Fedora, FreeBSD, HP-UX, Windows 9895, NT 20002003, XP, Vista
System Dump configuration and analysis. Experience in configuring AIX security settings. Performed routine task like adding, modifying and deleting user accounts using admintool and command line Disk Storage Management in AIX like Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes and physical volumes. Checking log files and monitoring system process using ps, prstat on Solaris and Red Hat Linux servers. Partitioned the disks, created new file systems, mounted and maintained them and changed the or etc/vfstab entries. Network trouble shooting using ndd, traceroute, netstat, ping and ifconfig. Setting up of System Security, Accounting and Auditing. Efftronics System, India November 2002 Dec2003 Role : UNIX System Administrator and Operator Installation and configuration of ipchains firewall on Red Hat Linux Performed network integration and system tests. Assisted management and other company employees in solving computer related problems. Installation of Linux APACHE and SAMBA servers, virus, backup solutions and firewalls policy setup. Configured NIS clients and troubleshoot NIS related problems Troubleshooting Backup and Restore problems and performed Day-to-Day trouble shooting for the end users on Solaris based applications Prepared documentation for the group on all additions, changes and revisions to systems in our domain for systems administration. Installed and Configured TCP/IP, DHCP and DNS Server software. Used TCP/IP utilities like ARP, finger, FTP, SSH, telnet, ping, nslookup etc. To troubleshoot network connectivity used ping, ARP, ifconfig and traceroute commands. Field servicing/troubleshooting of PC and Notebook support, hardware, application and OS troubleshooting, problems resolution and repair ; pc repair and diagnosis, network fault isolation and wireless network configurations.