This project involved revamp of the datacenter with 0% downtime (few minutes of downtime). The client wanted to scrap out the old Itanium servers running RHEL 4 and Windows 2003 which were hosting a series of applications on outdated technology stack. The client needed a highly available and a robust technology stack with advanced analytics and reporting capabilities.

My responsibilities:

- Advising the client on selecting which technology stack to be used

- Designing the workflow of the migration process.

- Installed, configured and supported mission-critical Linux and Windows servers.

- Installed, configured and prepared HP-UX and Linux servers to install Oracle products

- Was responsible for 24x7 uptime and monitoring of IT infrastructure including the DMZ and Windows/Linux servers.

- Implemented Symantec Netbackup 7.5 to backup IT infrastructure using LAN on EMC Data Domain 620 System.

- Implemented Legato Networker to backup mission critical applications using SAN on EMC CX-240 library.

- Installed, configured and administrated Oracle DB on Red Hat, Oracle EL, Windows OS.

- Installed and configured real-time monitoring systems based on Nagios and Observium.

- Installed and configured HAproxy on Linux servers to provide High Availability.

- Configured and implemented RAID 10 on mission critical servers and RAID 5 on less mission mission critical servers to improve system stability.

- Tested new tasks in virtual environment before deploying them on production servers by means of VMware.

- Performed capacity planning and performance tuning Wndows/Linux Operating Systems for Oracle Databases/Middleware Applications.

- Administrated and managed EMC storage arrays.

- Identified and solved problems related with hardware, operating systems and network

- Was responsible for rack mounting and cabling of servers, storage arrays, tape libraries in the Data Center.

- Implemented shell scripts to automate tasks, gather system information and create custom startup scripts.

- Provided security Linux/Windows servers by means of IPFilter, IPTables, sudo, access control, security patches.

- Installed and configured MRTG to monitor the traffic load on network links.

- Installed, configured and supported Primary & Secondary DNS, DHCP, FTP, NFS and NTP servers.

- Installed, configured Multipath I/O software on UNIX/Linux and Windows servers to provide fault tolerance.

- Created and managed user & group accounts and customized login shell scripts.

- Managed and created disk partitions, modified physical volumes, volume groups, logical volumes (LVM).

- Monitored system resources utilization by means of ps, top, sar, vmstat, iostat, glance, ipcs.

- Configured UNIX/Linux kernel parameters and updated kernels on Linux servers.

- Compiled and installed software from source code on Linux servers.

It was a six month project. The migration was completed within 4 months and after succeeding 2 months were spend for the stability phase.

Datacenter Migration & Co-Location

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