Balaji Vemula

Working as unix/Linux admin
Installing, upgrading, configuring and Administering of SUN Solaris/REDHAT x86 servers.
Working on VERITAS Clusters and Volume Manager.
Implementing Failover service groups on Cluster.
Monitoring and troubleshooting of service Groups in VCS
Creating the VCS Users and assigning privileges.
Freezing, switching service groups in VCS during the maintenance Window of a Node.
Adding, modifying and deleting the Resources to the Service Groups.
Experience on Configuration files LLT and GAB.
Starting and Stopping the Service Groups.
Creating new file systems on VCS and increasing existing new file systems on VCS.
Adding new node to existing cluster.

Server builds and decommissioning.
Working with vendors like Oracle, Red hat, HP & Symantec if there are any hardware/software failures and obtaining solutions and root causes.
Performing the patching activities on Solaris servers using Live upgrade

Project details:
Project : Texas Instruments

• File System Management (resolving the issues on File Systems).
• Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization.
• Weekly & periodically changes implementation and quarterly power down maintenance (Patching, Upgrading, Reboot development servers on request of client).
• Expertise on Solaris Volume Manager and RAID levels (RAID 0, 1, 5).
• Integration of various network related services like NFS.
• Service Management Facility (Enabling, Disabling and Troubleshooting the services)
• Installing and upgrading patches, package management UNIX and LINUX(YUM, RPM).
• Performing the patching activities on Solaris servers using Live upgrade
• Expertise on configuring Solaris Zones
• Knowledge on configuring the ZFS file systems
• Worked on VERITAS Volume Manager.
• Experienced with the installation, configuration of volume management using VERITAS Volume Manager and experienced in RAID 0, 1, 5, configurations
• Experienced in VERITAS Clusters.
• Worked on various Sun Entry level servers and Midrange servers, T-Series and M-series.
• Partner with application owners to provide UNIX solutions/support to achieve the business objectives.
• Working with vendors like Oracle, Red hat, HP & Symantec if there are any hardware/software failures and obtaining solutions and root causes
• Server builds using PXE and Jumpstart, Zone builds and VM builds as part of IAAS.

Roles & Responsibilities include:

•Disk configuration & Managing File Systems in Solaris
•Administrating of Users and Groups.
•Worked on various Sun Entry level servers and Midrange servers, T-Series and M-series.
•Configuring, Maintaining, and Troubleshooting Server and client Systems enabled with NFS.
•Administrating the different packages and patch administration.
•Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization.
•Scheduling of automatic repetitive Jobs with Crontab.
•Well versed with the security issues like Quotas, ACL, setuid and sticky bit.
•Creating and managing the swap.
•Configuring Raid 0 (stripe and concatenation), Raid 1 and Raid 5 for disk and data management by using SVM
•Creating and Administering Volume Manager Objects.
•Increasing the Volume size and file system size (UFS and VXFS).
•Configuring Solaris Zones.
•Managing System Services and implementing new Services using SMF (Service Management Facility)
•Having the good knowledge on configuring the ZFS file systems
•Administration on Sudoers

Project details:
Project : Tatasky