|
|
12345678910111213141516
Resume 12
Ravish Gradham
Summary
Over 12 years of experience in the field of Information Technology. Extensive experience supporting High Availability and Market Data Systems running on HP-UX 11.X, 10.x, 9.x, Solaris 2.x., HP-Openview, DNS, NIS, NFS, Mail servers, system security tools, firewalls and DCE. Expert in systems administration of UNIX systems, PC s, Networks and maintenance of security of systems and networks.
Excellent experience on HP Unix Servers, SUN SPARC servers, Windows NT, MPE/iX 4.x/5.x, CISCO 2500/4500 Series Routers, OpenView, EMC Symmetrix, Cellera, SAN, Advanced Stack Assistant, Shell and Perl Scripts, Web servers, Web Proxy servers. Extensive experience in handling large user environments, production environments and planning and execution of Backup and Disaster recovery procedures
Education
BE in Electronics and Communication Engineering, S J College of Engineering, India September 1990
Computer Skills
Computer Systems: HP-9000 Series 700 s, Series 800 s, HP-3000 series 800 s, SUN SPARC and Ultra series, SGI Iris, Indigo, Indy
Operating Systems: HP-UX Ver 11.x/10.x/9.x, Sun Solaris Ver. 2.x, MPE Ver. 4/5, iRIX - VI, Windows NT.
- SAN: EMC and Netapps
Routers: CISCO series 2500 and 4500
Scripts: Shell and Perl Scripts
Tools: DCE, HP-Advanced Stack Assistant, HP-OpenView HP-Omniback, Seagate Nerve Center, CiscoWorks, MEDUSA, SATAN, Glance, PerfView. MC Service Guard, Ignite-UX, HP Mirror/UX, Jetadmin, JetDirect, Sar
Applications: DNS, NIS, NFS, Mail Servers, TCP/IP, Netscape Proxy Servers
Work Experience
New Jersey Stock Exchange, Concord, NJ June 99 till date
Designation Senior Systems Administrator
Technical Environment:
HP Servers [A, C, D, G, H, I, L and K-Series]. HP-UX 10.X / 11.0/11.i Ignite-UX, HP Mirror/UX, and DCE EMC Symmetrix and Cellera
Extensive experience supporting High Availability and Market Data Systems running on HP-UX 11.X, 10.x, 9.x, Solaris 2.x., HP-Openview, DNS, NIS, NFS and DCE.
Overall Responsibilities:
- Working in a Unix Team to support 220 HP Servers
- Install and administer O/S and Application packages.
- Tune the O/S for optimum performance using performance monitoring tools such as Glance and Perfview
- Development of scripts for automation of systems administration functions
- Debugging system defects and crash dump analysis.
- Develop scripts to automate routine administration tasks.
- Planning and Execution of System and Network Upgrades.
- Maintain DNS, NIS and Mail Servers.
- Maintain Software and Patch Depots.
- Network traffic analysis and recommendation for performance improvement
- Support in Contingency effort
Few Projects:
Support in disaster and business continuity effort
Actively involved in contingency efforts and was responsible for maintenance of configuration files for the Linux systems, which emulated X-Servers, and development of a scheme and scripts to help all the devices to be re-configured in case of disaster and design and maintenance of the server used for indirect mapping of the hosts to different login servers.
Implementation of EMS monitoring system.
EMS monitoring is used for detection of hardware and kernel problems with the system in advance, which enables necessary action to be taken before the system actually fails. The product was evaluated and standard configuration suitable for the site was drafted and the monitoring system was implemented on all the servers running HP-UX 11.x.
Conversion of the Data center network to 100baseT.
The Data Center at NYSE was a combination of 10baseT and 100BaseT network, which resulted in lowered performance of the entire network. Initiated a project to migrate all the servers to 100baseT network, which involved, change in the network equipment, ordering required hardware like the compatible 100baseT network cards from the vendors and getting suitable drivers and patches for the system.
Implementation of the Time Synchronization System
The data center was dependent on one timeserver and did not have a backup server or a plan if the primary timeserver failed. Drafted a scheme and implemented the time synchronization system which had multiple servers over different O/S and network subnets, so that, in event of failure of any of the timeservers, the systems are not affected.
ABC-Worldcom, St. Louis, MO Aug 98 - June 99
Designation Senior Systems Administrator
Technical Environment:
Sun Servers [SPARC 1000, SPARC Ultra s and Enterprise Class systems. Sun Solaris 2.4 and 2.5HP-OpenView, Seagate NerveCenter, Ciscoworks, and Micromuse NetCool
Administration and maintenance of SUN servers installed at MCI-Worldcom for monitoring of the Networking devices for production environment of corporate customers like Quotron, J P Morgan, NCO Financials, Goldman Sachs, etc, which needed an uptime of 24 x 7 and provided 24 x 7 support for all the production servers.
Overall Responsibilities:
- Maintain application packages like OpenView, NerveCenter and CiscoWorks
- Develop scripts for administration and automation of routine tasks.
- Upgrade the operating system and applications as and when necessary
- Plan, execute and test backup and disaster recovery procedures.
- Security Administration
- Fine tune systems and applications.
- Network traffic analysis and recommendation for performance improvement
- Performed systems administration support and troubleshooting duties in a 24x7 production environment
- Develop and maintain security policies and procedures.
Few Projects:
Development of backup and disaster recovery plans for the system
The system did not have a fail proof backup and disaster recovery plan. I was responsible for drafting and implementing the backup plan and testing out the disaster recovery procedure.
Relocation of facility from Chicago, IL to St. Louis, MO.
One of the major tasks, which were undertaken by us, was to move the facility from Chicago to St. Louis. The systems had to be moved without any down time, as they were being used round the clock. Hence, the systems similar to the existent, had to be rented out, cloned as the existing system, switched without downtime and transported to the destination. Also needed to check the network and re-install the systems at the destination. The entire process was carried out with a downtime of just 2 hours.
Conversion of the systems to Millennium compliant systems.
The systems were converted to millennium compliant systems by upgrading the O/S, installing necessary patches, getting the millennium compliant version of the application software s and migrating the existing data to the new version and testing for compliancy.
Somebank APTS Asia Pacific Technology Services , Singapore Oct 97 - July 98
Designation Senior Systems Administrator
Technical Environment:
HP Servers I-Series, K-Series and T-Series , Operating on HP-UX 9.04, 10.10 and 10.20. Network using UTP and Thick Ethernet. EMC Symmetrix, MC Service Guard, HP Mirror/UX
Administration and maintenance of the HP Servers installed at Somebank APTS data center supporting 14 Countries in Asia-Pacific region.
Responsibilities:
- Extensive experience supporting High Availability and Market Data Systems
- Administer and maintain high end HP Servers installed at Citibank APTS data center, which supports 14 countries in Asia-Pacific region.
- Develop scripts for routine administration activities.
- Install and configure tools like PRM Process Resource Manager .
- Development of scripts for automation of systems administration functions
- Plan, test, execute and document the disaster recovery procedure and contingency drill.
- Setup and administer the file system security for various applications on R&D and Live systems.
- Network traffic analysis and recommendation for performance improvement
- Tune the O/S for optimum performance using performance monitoring tools such as Glance and Perfview
- Migrate applications form R&D systems to production Live systems.
- Administer network, in terms of monitoring the traffic and recommendation for improving the performance.
- Performed systems administration support and troubleshooting duties in a 24x7 production environment
Few Projects:
Development of fault tolerant data center
The project was taken up to build a fault tolerant data center in case of failure of the systems, power or network. This project included, identifying the systems to act as backup servers, implementation of MC service guard for the system fail over, distributing the systems across different power bus and re-design of the network fault tolerant operation and distributing the systems appropriately on the network.
Network activity analysis and re-design for improved throughput.
The network load was not equally distributed over the LAN. The project was taken up to check out the network traffic at different times of day and re-distribute the systems to distribute the load on the network evenly.
Implementation of Process Resource Manager [PRM]
The client had the need for allocating system resources when the system was fully utilized. The project was taken up to make sure that when the resources are fully utilized, the resources are allocated in the pre-determined percentages. The project included analysis of the application, determining the resources by the application, and finalizing the percentage of the resources needed by the application and allocating the same.
India Software Operations, Bangalore, India. May 95 - Oct 97
Senior Systems Administrator
Technical Environment:
HP-9000 Servers: I-Series, G-Series, K-Series, Work-Stations: 712, 715 , HP-UX Version 9.x and 10.x, HP-3000 Servers: 9x7, 9x9 , MPE/iX Ver. 4.x and 5.x, CISCO 2500 and 4500 Series Routers. OpenView, Advanced Stack Assistant, MEDUSA, Satan, Shell and Perl Scripts, Netscape Proxy Server, HP Omniback DCE
India Software Operations is primarily involved in development and maintenance of Operating systems for HP systems [HP-UX and MPE/iX] and development of software products for customers of HP.
Overall Responsibilities:
- Administer and maintain 100 HP servers and 400 workstations
- Install and administer systems in terms of operating system and tools.
- Development of scripts for automation of systems administration functions
- Fine-tune the kernel of optimization of performance and debug system defects and requirements.
- Install patches and upgrading of O/S as and when required.
- Maintain local O/S applications and patch depots.
- Administration of Security Regulations for Systems, Networks and firewalls
- Network traffic analysis and recommendation for performance improvement
- Install, configure and administer network-monitoring tools like OpenView, Advanced Stack Assistant.
- Form and maintain policies for Hewlett-Packard, India Software Operations in the areas of UNIX Security, PC Usage, NT Security, WEB Security and Security of MPE Systems.
- Form backup strategies, disaster recovery plan and password policies for the site.
- Administer security regulations defined by Hewlett-Packard for systems and network.
- Administer and maintain of the router configuration for the site.
- Install and maintain WEB server and WEB proxy server for HP-ISO, Bangalore.
- Install and administer tools like Softbench, Synervision, ATM, Framemaker etc.
Few Projects:
Development and implementation of Security policies for the site
The Security policies had to be implemented based on the Corporate HP guidelines, which was not in place at that time. The project involved interaction with different development groups on their developmental requirements, working within the corporate guidelines and to develop a security policy for the site, note down the exceptions, and get the approval from the management for the exceptions. Maintenance of firewalls and proxy servers.
Development and implementation of Backup and Disaster policies for the site
The Backup and disaster recovery plan for the site was not in place at that time. Individual development groups were performing the backups. The projects involved consolidation of the backup on a single system and also build a disaster recovery plan for the site, by classifying the systems under different classes based on the criticality to business continuity.
Development and implementation of a monitoring system for all the servers and Network equipments
The site did not have a monitoring system for the systems and network equipments. A comprehensive systems and network monitoring system had to be developed. Designed and developed a system using OpenView and Advance Stack Assistant software s for system and network equipment monitoring respectively.
Development and implementation of scheme for storage of the software s and development of scripts for standardizing the installation procedure.
Planned and executed the project of setting up depots of all the available software on a single server and put up scripts which will install the needed software s on the server. This also included installation of all the necessary tools and software s required by the developers in a single place and tuning of the kernel to standardize the build procedure of new boxes.
Development of scripts to automate the daily monitoring tasks.
Scripts were developed for the site to check out the system for security vulnerabilities and send across the message in form of mails, interpret the messages from the mails showing the security loop holes and take necessary action to set right the same, where the developers are not effected.
Division of the network based on the usage class of the system for enhanced security
The site had development and application critical servers on the same subnet. Due to this the tighter security measures, which were needed on the secure subnet could not be implemented, which would hamper the daily work of the developers. Hence the project was taken up to isolate the developmental servers from site critical servers and to allow all the services, which do not constitute security breach out of the developmental network and management if proxy servers and firewalls.
AMC Computers Ltd., Bangalore, India Sep 91 - May 95
Senior Customer Engineer.
AMC Computers was the company, which manufactured and supported Banking and CAD applications.
Technical Environment:
SGI Servers IRIS, Indigo, Indy Workstations , UNIX Servers, IBM Compatible PC s, UNIX, IRIX, Windows, PCAD, Design Center, 10base2, Thick LAN and 10baseT Networking.
Overall Responsibilities:
- Install and maintain computer systems marketed by AMC Computers Ltd.,
- On-Site administration of the systems marketed by AMC Computers.
- Networking of the systems in Heterogeneous environment
- Pre-Sales technical support to marketing personnel and technical feasibility analysis of special projects
- Realization and renewal of annual maintenance contracts
- Support to electronic CAD packages like PCAD, DESIGN CENTER in terms of demonstration and benchmarking
- Planning and maintenance of spares required for the region.
Indian Institute of Technology, New Delhi, India Dec 90 - Aug 91
Senior Research Assistant.
Technical Environment: IBM PC, Programming Language: C and 8085 Assembly
Design and develop control system for Solar Photovoltaic Panels.
Description of the project:
The project involved tracking the movement of the Sun, during various durations of day and different months through mathematical models and design a control system so that the solar photovoltaic panel will be facing the sun, for maximum efficiency output.
12345678910111213141516
|
|