Anil Kathoju

Production Support Engineer with 9 years of experience in AIX and Linux administration, specializing in LPAR/DLPAR, HMC, HACMP, VMware, and VCenter, ensuring high availability and seamless operations.

To obtain a challenging role in System Administration/Production Support where I can apply my extensive experience in UNIX/Linux, AIX, and virtualization technologies to drive system reliability and operational excellence.

• Received Bravo Awards for performing Patching @Persistent Systems
• Received SPOT Awards for AIXOS migrations @Wipro.

• Automated and executed monthly patching of 100+ RHEL 7/8/9 servers using Ansible and manual methods, achieving 95–98% patch compliance within defined maintenance windows.
• Performed in-place RHEL upgrades (8 to 9) across multiple environments, ensuring zero critical downtime through pre-upgrade validation, backups, and rollback planning.
• Monitored and tuned system performance using tools like top, vmstat, iostat, sar, improving system efficiency and reducing resource bottlenecks by 20%.
• Implemented OS security hardening (CIS standards), including SSH configurations, password policies, and service optimization, reducing security vulnerabilities by 30%.
• Managed LVM administration (creation, extension, reduction, snapshots), supporting dynamic storage requirements with zero data loss incidents.
• Troubleshot and resolved filesystem and disk-related issues, reducing system downtime and ensuring 99.9% system availability.
• Configured and maintained network services (SSH, FTP) and resolved connectivity issues, improving service reliability and access control.
• Administered firewall configurations (iptables/firewalld) and TCP Wrappers, strengthening server security and access management.
• Resolved critical boot issues by working in rescue/emergency mode, including fixing corrupted filesystems and invalid fstab entries, minimizing recovery time by 40%.
• Created and managed file systems, swap space, and performed online/offline resizing of logical volumes to meet application demands.
• Administered user and group management, permissions, and sudo access, ensuring compliance with organizational security policies.
• Supported 24/7 production environments, handling incidents, changes, and problem tickets within SLA, achieving 95%+ SLA adherence.
• Performed VMware/vCenter operations including VM provisioning, resource scaling, and snapshot management for development and production systems.
• Analyzed system and application logs for proactive monitoring and troubleshooting, reducing recurring incidents by 25%

• Supporting Non-Prod and Prod environments for testing with project/application teams
• Maintaining the environment according to Policy Compliance Management requirements
• Conducting system audit reviews and performing maintenance functions to ensure system health, troubleshoot, and resolve problems
• Presenting status information on issues and problems at team meetings
• Documenting software changes and problem-resolution steps
• Assuring best practices and standards are implemented and adhered to for software systems
• Providing on-call support and implementation after-hours on a rotating basis
• Creating VM's in OpenShift Virtualization and maintaining and monitoring VM's through Dynatrace, Instana, Splunk, ServiceNow tools
• AIX OS Migration: Perform AIX OS migrations using nimadm process.
• Performing TL Patching on prod and non-prod environments
• Performing SP upgradations through Ansible and BigFix automation tools
• Troubleshooting on Server hung issues.
• Handling server reboots in prod and non-prod environments
• Worked on backup related issues from OS side
• Adding LUN's and Files systems management as per client requirements
• Provides support to vendors and application programmers, as necessary Installation, migration, upgrading and maintenance of AIX operating systems.
• Keeping the complete backup of the system and restoring data in the event of disk failure
• Effective in dealing with Crises calls/Critical issues for business-critical services
• Troubleshooting various issues like performance, OS booting problems, Filesystem etc... on servers. And Strong technical knowledge in respective technology.
• User Management – Creating, maintaining, and removing users and groups
• System Administration and performance monitoring Task on AIX Monitoring the system, cpu, memory and disk utilization using topas, sar, vmstat, netstat etc
• Configuration of new devices using cfgmgr – faulty disk Replacement
• Working with hardware and software supports Working on incident management, problem and change management
• Worked VIOs updates.
• Good experience in working with Cluster Single Point of Control (C-SPOC) Fixing mount issues, checking filesystem integrity, running fsck in maintenance mode on rootvg logical volumes if any corrupted lv's in rootvg
• IBM AIX Administration: Manage and maintain IBM AIX infrastructure, including servers, storage, and networking.
• Installation and Configuration: Install, configure, and troubleshoot IBM AIX operating system.
• Security: Implement and manage IBM AIX security, including access control and auditing.
• Upgrade and Migration: Upgrade and migrate IBM AIX systems.
• Collaboration: Collaborate with IT teams to ensure infrastructure meets business requirements.
• In-depth Knowledge: In-depth knowledge of IBM AIX operating system.
• Analytical and Problem-Solving Skills: Strong analytical and problem-solving skills.
• Provide expert-level support for IBM Power Systems, including P9 and P10 servers, running AIX 7.1 and 7.2.
• Ensure the availability and performance of business-critical servers by monitoring, troubleshooting, and resolving issues promptly.
• Perform regular patching and maintenance activities, adhering to best practices and minimizing downtime.
• Manage NFS (Network File System) configurations and troubleshoot related issues as needed.
• Collaborate with cross-functional teams to implement system enhancements, upgrades, and migrations.
• Worked on Server migration from one frame to other frame by using live partition mobility
• Modifying CPU & Memory resources using DLPAR (online) & also in offline.
• Worked on frame firmware upgrades
• Worked on HMC upgrades
• Disaster Recovery: Implement and manage AIX disaster recovery processes
• Support day to day issues like server hung, unexpected reboot and performance issues for DB/APP hosts
• Provisioned and managed AIX/Linux virtual machines using IBM PowerVC, including deployment, configuration, and basic lifecycle management in IBM Cloud environments.