Subbaiah K
Hyderabad
Summary
Experienced Linux System Administrator with expertise in multiple open-source operating systems. Passionate about improving network uptime and enhancing system availability. Strong team player with excellent work ethic, collaboration skills, and the ability to exercise independent judgment.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Technology Associate Linux
Locuz Enterprise Solutions ltd
Hyderabad
05.2022 - Current
- Primarily responsible for day-to-day oversight for the operations of the Data Center.
- Taking backups as per schedule.
- Responsible for documentation of Backup status reports.
- Observing the mails and Tickets those should not be reach SLA.
- Installation, configuration and administration of Linux Servers.
- User and Group Administration of creating, modifying and deleting users and groups and providing the security on user accounts and groups.
- Trouble shooting on Disk Space issue.
- Creating new file systems and monitoring disk usage.
- LVM Creation and Maintaining the LVM.
- Package management with RPMs & YUM and installing third Party software’s (EPEL) in Red hat Linux.
- Network Configuration and troubleshooting for Linux Servers.
- Creating network bonding to avoid network failure on the servers.
- Installation and configuration of file sharing services (NFS, SAMBA and FTP).
- HP 3PAR Storage monitoring and Trouble Shooting & Creating Zoning on SAN Switch. Creating Luns and exporting to the Hosts.
- SAN & DLC Client Installation.
- SL8500 Tape Library Handling and Trouble Shouting Drive Issues.
- Upgradation and maintaining firmware on Servers ( HP, DELL and IBM ) using management modules.
- Configuring history logger on each server (user commands history).
- Creation of virtual machines (KVM) on RHEL 6 and above versions.
- Installation and configuration of NTP Server and Clients.
- Collecting Server and event logs using ILO, IDRAC and IMM.
- Configured tools like Orion, Zabbix and Librenms to monitor the server’s health.
HPC Admin
Concept Information Technologies Pvt.ltd
Hyderabad
04.2021 - 05.2022
- …. Provide 24*7 on-going maintenance and support (Liaising with the system support team and software vendors to troubleshoot and perform performance tuning).
- Managing Compute Nodes with IMM and ILO.
- Monitoring the "node IBM system X servers" using ganglia monitoring tool.
- Monitoring Cluster Infrastructure like Storage Controllers, Hard-disks, DIMM-RAMS, Compute Node Servers, IB-Cable health, FC-Cable health.
- Monitoring user jobs and Servers status.
- To handling the issues related to LSF and PBS (scheduler's).
- Assigning the cores and create a queue to the user.
- Managing user disk quotas.
- Analyzing job types, including hold reasons, job status changes, termination reasons, and re-scheduling strategies, to optimize job scheduling and resource allocation.
- Managed and maintained NIS (Network Information Service) for centralized authentication and directory services.
Education
B.Sc. - computers
ST Joseph’s Degree College, Rayalaseema University
Kurnool06-2017
Skills
- Operating System: RHEL, Centos
- Application servers: Apache, Samba, NFS, NIS
- Package Management: RPM and YUM
- System Administration: User management, file system management, process monitoring
- Remote System Support : SSH, password less login
- Security: Firewall
- Shell Scripting: Bash scripting for automation
- Virtualization: KVM
Certification
- Trained on RHCSA & RHCE from COSS, Hyderabad
- RHCSA certified
- Certificate id: 190-302-398 scored 89%,January 2020
Languages
Telugu
First Language
English
Advanced (C1)
C1
Accomplishments
- Installing and supporting application services and middleware support.
- Installing, configuring and Management of Linux servers.
- Administration of apache, samba, DNS, NFS.
- Knowledge on command line utilities, ACL, Cron job, Firewalls, Virtualization.
- Installing and upgradation of OS, Kernel and additional packages using RPM and YUM.
- Managing partitions and File systems.
- LVM.
- LVM expansion.
- LVM Recovery.
- User and Group Administration.
- Basic shell scripting.
- Virtualization.
- Backup and restoration.
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Work Preference
Work Type
Full TimeTimeline
Technology Associate Linux
Locuz Enterprise Solutions ltd
05.2022 - Current
HPC Admin
Concept Information Technologies Pvt.ltd
04.2021 - 05.2022
B.Sc. - computers
ST Joseph’s Degree College, Rayalaseema University
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