Raja Subramani Email & Phone Number

Chennai, Tamil Nadu, India

Bengaluru, Karnataka, India

C V Raman Nagar, Bangalore

- Responsible for managing BCM and OpenHPC program.- Testing and reporting the bugs of latest release of bright computing cluster and openhpc cluster.- Documenting deployment guide for field engineers.- Performing application benchmarking like HPL along with GPU and STREAM.- Building containers in singularity and docker platforms.- Managing lab for HPC team.- Non-standard OS certification and Validation.- Collaborating with other team members for the new hardware release. - Testing the new hardware with bright computing cluster and openHPC

Bangalore, Karnataka

- Managing Critical 3000+ Redhat Servers for Volvo - Server OS upgradation, Patching & vulnerability fixing, Fine tunings, Capacity planning- SAN Storage Migrations and performing all the critical changes- Working on Red Hat cluster servers with Mirroring File systems- Worked on KVM - Hypervisors, snapshots, templates - Worked on VM ware - Template, V-Motion, Esx Migration, Data stores etc... - Involving Redhat 7 Implementations and Cloud projects- Resolving the Multipath Buffer I/O and Multipath disks issues - Design the technical WIKI’s in Volvo IT Global Team place, Good in Making technical Documentations like SOPs, RCAs, IOP, FOP, etc- OS Installations and troubleshooting with permanent fix.- Creation / modifications of LVM file system.- Monitoring alerts such as Disk space, CPU, Memory, Server Uptime, Mail queue/traffic/replication, Critical Services.- Performance monitoring, system fine tuning, trouble shooting on production systems.- Managing Server Backups as per the schedule and ensuring zero data loss from the backup.- Giving resolution to the incidents/day to day activities within committed SLA.- Managing user accounts (ID Creation/Deletion/Modification/Delegation).- Follow up with the vendor calls and timely escalate to next level when there is no update in predefined timeline.- Analyse and fix the repeated calls with necessary change process.- Kernel up gradation due to hardware changes- NIC bonding for High Availability/Performance- Configure the NTP Server and client step-up.- NFS Server/client Configure and troubleshooting.- Configuring & managing the RPM’s through YUM in Redhat- SSH version up gradation to enhance ssh security- Creating logical volumes through LVM & managing the disk space effectively- Knowledge on various mail services like Qmail, SMTP, POP, Postfix