Vasanthakumar Jayabalan

Client: Citibank.

Managed EMC Scale IO Storage operations, ensuring efficient ticket resolution and change management.
Executed LUN provisioning and unmapping to optimize storage allocation.
Conducted ScaleIO volume migration and rebuilt systems from RHEL 7 to RHEL 8.
Troubleshot storage disk errors while applying Linux OS patches for stability.
Led upgrades and operational builds of Scale IO to enhance performance.
Configured SSD drives and replaced failed disks to maintain system integrity.
Facilitated S3 bucket management and upgrades for cloud object storage support.
Participated in on-call rotation for after-hours support during weekends.

Project 1: MetLife - VMware/Linux L3 Administration.

Delivered bi-weekly client presentations to report project status and challenges.

Facilitated weekly discussions with customer line manager to mitigate risks and resolve issues.

Conducted daily handover calls to ensure team alignment and review task assignments.

Monitored team performance through daily calls with leads, ensuring timely task completion.

Collaborated with UNIX L3 team for weekly updates on major tasks and changes.

Promoted team participation in Cognizant initiatives to drive engagement and development.

Developed industry-standard security policies to strengthen operational security in customer environment.

Designed and implemented Linux server solutions, migrating from RHEL7 to RHEL9.

Project 2: Albertsons – Linux, Azure Cloud, VMware

Designed and implemented Linux server solutions, including builds, migrations, upgrades, and decommissioning across cloud platforms and on-premises data centers.
Established vulnerability and patch management protocols for Linux servers in on-premises and Azure environments.
Automated daily operational tasks involving Linux OS hardening, post-build activities, and operating system snapshots.
Managed Linux file servers and cluster servers hosted in Azure blobs.
Validated Azure landing zone requirements for seamless workload migration from on-premises to Azure.
Executed migrations of on-premises workloads to Azure while building virtual machines using Azure Migrate for OS, platform, and VMware.
Created Ansible playbooks to automate Linux patching activities and deployed the Stone Branch application for efficient file system management.
Provisioned resources in Azure cloud environment, troubleshooting VM performance, network issues, CPU resizing, storage problems, and backup challenges.

Project 3: Manulife Insurance – IBM AIX, LINUX, and AWS Cloud.

Executed AIX and Linux server build installations and troubleshooting for UNIX servers.
Migrated and upgraded servers, ensuring minimal downtime during decommissioning processes.
Configured Virtual I/O servers and clients, along with NIM server setup and troubleshooting.
Automated scripts for Linux and AIX hardening, enhancing post-build activities and OS snapshots.
Managed incident, change, and service request tickets through ServiceNow, providing L3 support offshore.
Supported a project environment with over 300 AIX and 100 Linux VM servers and Power-Series boxes.
Developed AWS cloud architecture with services including VPC, EC2, S3, ELB, IAM, and CloudFormation.
Created NAT gateways and instances to facilitate secure internet communication for private instances.

Project 4: CITI Bank/ScaleIO Storage - IT Support

EMC Scale IO Storage BU Operation Support Tickets and changes, LUN provisioning, unmapping, storage disk error troubleshooting, Linux patching, Scale IO upgrades, Scale IO build operation, OS M.2 SSD drive configuration, and failed disk replacement, storage controller, BIOS firmware upgradation. On-call rotation duties for after-hours and weekend support.

Project 5: BJ's Wholesale Club / AIX, Linux, and VMware Support.

Managed system operation support tickets and work orders in SOS Tool.
Provided Level 2 support for over 200 AIX and 500 Linux servers.
Executed installation and troubleshooting of AIX and Linux servers.
Performed patching on UNIX servers to ensure system security.
Utilized IBM Tivoli Monitor tool for monitoring CPU and memory performance across UNIX servers.
Installed Puppet, Centrify, and Autosys Agent on UNIX servers to enhance functionality.
Decommissioned outdated servers and databases to optimize resources.

Project 6: Symantec Corporation - Linux, AIX, and VM Cloud.

Executed VM Cloud Build and performed data migration from legacy systems to cloud environments.
Conducted Qualys scans to identify vulnerabilities and implemented remediation strategies.
Managed user accounts and access controls to ensure security protocols.
Troubleshot cloud VM issues, enhancing system performance and reliability.
Extended VM disks and configured Linux settings, including Ulimit adjustments.
Applied OS hardening techniques to safeguard cloud infrastructure.
Resolved disk space issues while managing local and NFS file systems.
Developed basic shell scripts for automation of storage and DNS domain requests.

Project 7: STAPLES / ITIS L3 Unix Project Services - IBM AIX, EMC Storage, LPAR, HACMP, and VIO.

Executed AIX server builds, installations, and troubleshooting for UNIX environments.
Managed migration and upgrades of over 500 AIX and 100 HPUX servers.
Configured and decommissioned virtual I/O servers and clients efficiently.
Set up and troubleshot NIM servers to streamline deployment processes.
Administered VERITAS cluster and volume group configurations for optimal performance.
Handled incident and change management tickets using Remedy and ServiceNow tools.
Provided Level 2 support from offshore, addressing complex technical issues.
Oversaw device and user management on AIX and HPUX systems.

Project 8: PepsiCo / IBM AIX L2 Support.

Executed incident and change management tasks across STET and Peregrine systems.
Provided 24/7 level-two support for critical operations. Managed project environments with HPUX and AIX servers, including Itanium and P-series.
Performed installation and troubleshooting of Unix server builds. Utilized Marimba and DBA requests for application deployment.
Monitored CPU and memory performance of UNIX servers using the HOBBIT Monitor tool, and administered volume groups, LVM, and device management procedures.
Diagnosed and resolved hardware issues for UNIX servers.

Client: Hindustan Unilever Limited - L2 Support for Legato Backup and IBM AIX.

Managed service calls, incident management tickets, and technical change requests in OVSD.
Provided 24/7 Level 2 support for complex project environments with multiple AIX servers.
Installed and configured IBM AIX V 5.3 along with additional software on p510 server.
Proactively monitored various servers, checking file system sizes and user login attempts.
Added necessary packages and patches to ensure optimal server performance.
Allocated resources efficiently to logical partitions (LPARS) for improved system performance.
Managed backups utilizing IBM TAPE TS3500 library to ensure data integrity.

Client : Nestle - IBM AIX L3 Support.

Executed AIX server installations via NIM and CD, ensuring successful updates and migrations.
Conducted server builds for LPAR creation and executed capacity upgrades through LPAR moves.
Restored operating systems from mksysb backups to maintain system integrity.
Administered AIX 5.3 systems, including user creation and file/directory permission management.
Created and extended file systems with or without cross-site mirroring, optimizing data availability.
Monitored error logs and system performance metrics to proactively address issues.
Configured high availability clusters (HACMP) by defining resource groups and managing NFS mounts.
Performed OS migrations and updates from AIX 5.2/5.3, enhancing system reliability.

Maintained servers running Red Hat Enterprise Linux, IBM AIX, and Windows 2000.
Implemented Active Directory Service within Windows domain to enhance user management.
Managed user access security and resolved server-related issues promptly.
Installed, maintained, and troubleshot DHCP servers to ensure network reliability.
Created Ghost images using Norton Ghost for system backups and restorations.
Diagnosed and resolved network-related problems to maintain operational efficiency.
Administered Linux systems for NFS, SAMBA, and automated data backups from Windows 2000 to Linux using Crontab.
Maintained SQUID Proxy server to restrict internet access while ensuring secure connections.

Provided IT hardware support for various computer systems and components.
Performed troubleshooting of computer hardware to resolve technical issues efficiently.
Managed network administration tasks to ensure reliable connectivity and performance.
Configured and maintained Linux operating systems for optimal functionality.