arun udamala

About my experience and knowledge.

Experience in user management and troubleshooting user management) related issues
● Identifying the Performance issues, Package management and patch management.
● Extensive experience in installation, configuration and administration of Redhat Linux6/7/8, CentOS.
● Good working experience on troubleshooting server issues.
● Experienced in installation of Operating Systems, Packages and Patches, maintaining user accounts, system security, backup/recovery, performance tuningand troubleshooting at various levels.
● Having experience on adding disks, taking snapshots in Vsphere.
● Experienced in configuring the repo servers for offline update of servers.
● Experienced in LVM, partition with fdisk and gdisk.
● Worked with ext4 and xfs file systems, troubleshooting on file systems to resolve file system corrupts and converting file systems.
● Root password recovery and Troubleshooting L1, L2 and L3 issues.
● Work with vendors such as DELL/HP and RedHat to provide necessary logs to solve on issues.
● Having working experience on Shell scripting which can able to make simplescripts and able to understand the flow of complex scripts as well.
● Good exposure on ServiceNow ticketing tool. Attending the TAB & CAB meetings to get approval of Change requests.
● Experienced in Performance tuning utilities like iostat, sar, vmstat, top.
● Cleaning log files and compresses old logs on OS File Systems.
● Effective team player with an aptitude to learn and ability to prioritize,organize and accomplish multiple tasks, as part of team or independently.
● Delivering 24x7 production support on mission critical servers running onLinux Environment
● Worked on Linux OS patching
● In-place Upgrade the servers from RHEL7 to RHEL8 ONLINE & OFFLINE using leapp tool.

Experience in user management and troubleshooting user management) related issues
● Identifying the Performance issues, Package management and patch management.
● Extensive experience in installation, configuration and administration of Redhat Linux6/7/8, CentOS.
● Good working experience on troubleshooting server issues.
● Experienced in installation of Operating Systems, Packages and Patches, maintaining user accounts, system security, backup/recovery, performance tuningand troubleshooting at various levels.
● Having experience on adding disks, taking snapshots in Vsphere.
● Experienced in configuring the repo servers for offline update of servers.
● Experienced in LVM, partition with fdisk and gdisk.
● Worked with ext4 and xfs file systems, troubleshooting on file systems to resolve file system corrupts and converting file systems.
● Root password recovery and Troubleshooting L1, L2 and L3 issues.
● Work with vendors such as DELL/HP and RedHat to provide necessary logs to solve on issues.
● Having working experience on Shell scripting which can able to make simplescripts and able to understand the flow of complex scripts as well.
● Good exposure on ServiceNow ticketing tool. Attending the TAB & CAB meetings to get approval of Change requests.
● Experienced in Performance tuning utilities like iostat, sar, vmstat, top.
● Cleaning log files and compresses old logs on OS File Systems.
● Effective team player with an aptitude to learn and ability to prioritize,organize and accomplish multiple tasks, as part of team or independently.
● Delivering 24x7 production support on mission critical servers running onLinux Environment
● Worked on Linux OS patching
● In-place Upgrade the servers from RHEL7 to RHEL8 ONLINE & OFFLINE using leapp tool.

M.tech in Energy systems engineering from Jawaharlal nehru technological university anantapuramu.