Yogesh Thorat
Irthlingborough,Northamptonshire
Summary
Experienced System Administrator with over 5.4 years of expertise across Linux/AIX environments, Monthly Patching, OS upgrade, IBM storage, SVC and Cisco SAN Switches. Proven track record in executing OS security hardening, LUN Allocation Mapping, Un-mapping, clone, Pool Creation and deploying Dynatrace for advanced infrastructure monitoring. Skilled in optimizing system performance, reducing MTTR, and maintaining high availability for enterprise production environments.
Overview
1
1
Certification
5
5
years of professional experience
Work History
LINUX & STORAGE, SAN ADMINISTRATOR
IBM INDIA PRIVATE LIMITED
MUMBAI, MAHARASHTRA
05.2023 - 06.2026
System Administrator (Linux & Storage, Cisco SAN)
- Managing Linux (RHEL/CentOS) and AIX servers in enterprise production environment.
- Administering IBM Storage systems (SVC, FS52k, FS92k, FS95k): LUN Creation, Create stretched volume, allocation, migration, Cloning, volume expansion, Snapshot creation, create consistency group.
- Mirroring/Replication( creating Replication between DC-DR) disaster recovery between long distance.
- Configuring & troubleshooting Cisco SAN Switches (zoning, WWPN mapping, host–storage connectivity).
- Supporting VG import/export and PV/LV migration across SAN disks.
- Coordinating with application & infra teams for performance and availability improvements.
- Conducted OS security hardening and baseline compliance (SCD 14.x).
- Deployed & configured Dynatrace OneAgent for infrastructure and application monitoring.
Linux System Administrator
NLT INFOTECH
NAGPUR, MAHARASHTRA
02.2021 - 05.2023
Linux System Administrator
- Installed, configured, and maintained Linux (RHEL, CentOS) and AIX servers.
- Managed LVM and filesystem operations: create, extend, resize, migrate.
- Configured & managed network services: DHCP, DNS, NFS, FTP, Apache, Samba.
- Automated tasks with CRON and basic shell scripting.
Education
Bachelor of Science - COMPUTER APPLICATION
MONAD UNIVERSITY
HAPUD, UTTAR PRADESH01-2021
Skills
Technical Skills
Operating Systems:
- CentOS 6/7/8, Red Hat Enterprise Linux 6,7,8,9
Linux Administration:
- Linux command expertise
- User & group administration: add/delete users, manage permissions & policies
- Runlevel management, single-user mode troubleshooting, SU login
- File system & LVM management: create, extend, resize, remove partitions
- Package management: YUM, DNF, RPM (install, remove, upgrade, query)
- Baseline OS security hardening (SCD 141, 142, 143)
- Remote login & administration via SSH, PuTTY
- FSTAB, FDISK, CRON job scheduling
- Networking: IP configuration, basic firewall (iptables), DHCP setup
- Web & services: Apache, DNS, NFS, FTP, Samba
- Knowledge of boot process, troubleshooting
- Handled end-to-end monthly patching operations manually and through BMC Remedy/TSSA to ensure system security and compliance
- Successfully performed end-to-end OS upgrades from RHEL 79 to 810 and RHEL 810 to 97 across enterprise server environments
- Agents installation & troubleshooting:- ds_agent, Splunk (SEIM), EDR, Trelix Agent
Monitoring & Observability (APM):
- Dynatrace OneAgent deployment & configuration for Linux servers
- Infrastructure & application performance monitoring
- Alert configuration & integration with incident management tools
- Root cause analysis and troubleshooting with Dynatrace dashboards
- Improved incident detection & reduced MTTR
Storage Administration:
- Managed IBM Storage systems: SVC1, SVC2,SVC3, FS52k, FS92k, FS95k
- Performed LUN provisioning, storage allocation, zoning & mapping via SAN switches
- Migrated PVs and LVs across SAN disks using storage LUN mapping
- Worked on export/import of VGs between LPARs with backend storage integration
- Monitored storage utilization and performed housekeeping activities
- Administered Cisco SAN switches: configured zoning, managed WWPNs, and resolved connectivity issues between hosts and storage
- Cisco SAN switches expertise
- Coordinated SAN connectivity between IBM storage and AIX/Power RHEL servers
- Managed end-to-end lifecycle upgrades for IBM SVC clusters and Cisco SAN switches
- Performed security hardening for IBM SVC and storage environments following SCD 143 compliance standards
- Executed security hardening and vulnerability remediation on Cisco SAN switches using SCD 143 framework guidelines
Languages
Hindi
Proficient
C2
English
Intermediate
B1
Marathi
Proficient
C2
Certification
Certifications
- Red Hat Certified System Administrator (RHCSA)ID: 230-013-997
- Certified Linux Administrator (Sadhiq Linux Institute)
Hobbies and interests
- Listening to music
- Playing Cricket
- Exploring new Technology
Timeline
LINUX & STORAGE, SAN ADMINISTRATOR
IBM INDIA PRIVATE LIMITED
05.2023 - 06.2026
Linux System Administrator
NLT INFOTECH
02.2021 - 05.2023
Bachelor of Science - COMPUTER APPLICATION
MONAD UNIVERSITY