Jan 2021 – Oct 2022 · 1 yr 9 mos · Bangalore Urban, Karnataka, India · On-site

• Installing High Performance Computing cluster (CPU, GPU )
• Good Hands-on experience Job Schedulers like , LSF, PBS, PBS Pro.
• Maintenance High Performance Computing Environment servers
• Responsible for the implementation, administration and maintenance of Red hat Enterprise
• Linux Advance server platform, installed and tested commercial software, releases and updates
• Hands-on experience in maintaining, upgrading and repairing on HP IBM Lenovo and Dell chassis including blade servers
• installing open-source software on the clusters,
• Building , Configuring and troubleshooting hardware related problems in HPC servers. Good understanding of server Hardware Technology &LINUX
• Upgrade the exiting cluster with new version of OS and other software
• Conceptual thinking and adapting new technology Good communication , presentation ,customer support and troubleshooting skills
• Strong interpersonal skills with good Team management and Team development experience.

Feb 2018 – Jan 2020 · 1 yr 11 mos · Hyderabad, Telangana, India · On-site

• Administrating Storage Controllers through Lenovo Storage Manager
• Managing User Lustre file system Quota
• Monitoring Parallel Jobs through LSF job scheduler
• Administrating HIGH AVAILABILITY services like PACEMAKER, COROSYNC for head node and storage
• servers
• Monitoring Cluster Health with IBM PHPC
• Administrating licenses for simulation applications like NEWFASANT, FEKO
• Managing Compute Nodes with IMM
• Monitoring IB, SAN, ETHERNET Switches Health
• Monitoring Cluster Infrastructure like Storage Controllers, Hard-disks, DIMM-RAMS, Compute Node
• Servers, IB-Cable health, FC-Cable health
• Cloning Compute Node Images with CLONEZILLA
• Administrative Tasks like collecting LSF JOB STATISTICS, application logs, executing useful BASH SCRIPTS

Dec 2015 – Dec 2017 · 2 yrs

Dec 2015 – Dec 2017 · 2 yrs

• working as Linux system administration and managing Linux HPC cluster with 280 servers troubleshooting on scheduler PBS and file system GPFS troubleshooting on NIS DNS NFS FTP samba server creating LVM monitoring users jobs
• I have knowledge of raid levels

Dec 2015 – Dec 2017 · 2 yrs

• IBM idataplex cluster (XCAT) with performance of 40TeraFlops (~3600 cores). Storage: SAN and IBM Tivoli Tape Library for Back-up.
• Switches: Cisco Catalyst and Voltaire Infiniband.
• IBM cluster (ROCKS) with performance of 5TeraFlops (~1520 cores). Switches: Cisco Catalyst and Voltaire Infiniband.
• Roles & Responsibilities:
• Primarily responsible for day to day oversight for the operations of the HPC environment.
• To manage High Performance Computing Red Hat Linux Cluster.
• Provide 24*7 on-going maintenance and support (liaising with System support team and Software vendors to trouble shoot and performance tuning)
• Monitoring the 300 node IBM system X servers using ganglia monitoring tool.
• Maintained GPFS (General parallel File system) ext4 and ext3 file systems.
• Manage and troubleshooting on SAN storage using IBM DS Storage Manager 10 tool.
• To solve the customer complaints through remotely as well as onsite.
• Worked on hardware and firmware levels of the IBM X servers.
• To manage the user accounts file permissions and check their quotas.
• Installation of cluster tools like PBS, XCAT and ganglia monitor tool.
• Configuration of Printers on Linux.
• Environment : RHEL 7.3
• Tools : Ganglia, PBS, LSF Job View.