Unix/AIX Administrator
Qatar Development Bank
مجموع سنوات الخبرة :16 years, 10 أشهر
• Administration of production UNIX (AIX) Servers.
• Perform troubleshooting, performance tuning and capacity planning, and troubleshooting of issues with minimal down time or no outage during working hours.
• Design and implementation of Unix/Storage solution for new projects.
• Create standard LPAR, performing DLPAR operations to manage recourses between machines.
• Maintaining the security policies on servers as per the Bank standards.
• Performing Failovers/Fallback in PowerHA cluster environment, monitoring servers.
• Built VIO servers and VIO clients on POWER6 & POWER 8, P520, P550, P570 and S822.
• Mapping of the VIO servers with VIO clients for the virtualization of IO adapters.
• Maintaining User Account by changing permission, password etc.
• Applying server and application patches to ensure systems are up to date.
• Administration of Core Banking application TCS BANCS and Treasury Management System hosted on AIX platform.
• Managing IIS Web Services hosted for core banking frontend application
• Performing End of Day for Core Banking System and Treasury System.
• Administration of BizTalk Middleware Application, Signature Scanning System.
• Installation and Configuration of Network Installation Manager (NIM), configuring the NIM master and assigning the clients and taking the mksysb of the NIM client on the NIM master.
• Restoring the server from the mksysb image and bringing up the server.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Assist Application department to install application on AIX system and tuning for application requirements.
• Carrying out the DR drill activity whenever requested by management.
• Installation and configuration of Netbackup agent on Unix servers.
• Creating and restoring the backups using Netbackup Management Console.
• Managing IBM DS3400, DS4700, V5000 and V7000 SAN environment.
• Configuration and troubleshooting issues on networking services (like FTP, NFS, SSH, DNS, Mail server ...)
• Providing assistance on upgrading the servers depending on the support matrix.
• Analyzing the system logs to diagnose the system issue and find out the root cause for the problem.
• Preparing RCA report for the production issues and sharing the report with Bank Risk department.
• Working with hardware and software vendor support personnel to efficiently resolve any issues with systems being maintained.
• Administration of production UNIX (Linux, AIX) Servers.
• Able to perform troubleshooting, maintaining & installing enterprise level & mission critical servers for Redhat Linux servers with all the standard services.
• Configure and troubleshooting of Redhat Cluster, and cluster services.
• User Management.
• Patch Management.
• Handling troubleshooting issues on LVM (Logical Volume Manager), Multipath, Disk Management, device drivers.
• Handling troubleshooting issues like booting, rpm package, User management, backup, system performance etc...
• Configuration and troubleshooting issues on networking services (like FTP, NFS, SSH, DNS, Mail server ...)
• Providing assistance customers on upgrading their Linux server depending on the support matrix.
• Analyzing the Linux system logs to diagnose the root cause for the problem.
• Analyzing the root cause for the Server reboot issues, storage dis-connectivity issue, Work in coordination with the Hardware and Storage team to diagnose the cause and assist in resolving the issue.
• Elevate / Escalate calls/customer issues in a timely manner.
• Working with hardware and software vendor support personnel to efficiently resolve any issues with systems being maintained.
• Consistent sharing of weekly/monthly status report including quality information on updates and metric.
• Contribution in the knowledge management repository in the form of SOPS.
Synechron Technologies Pvt. Ltd., Pune Oct '11 to Till Date
Associate - IT Operations
Responsibilities: • Troubleshooting alerts related to disk space management on AIX & Linux servers.
• LVM management on AIX servers, Creating/extending VG and filesystems.
• Customizing paging space on AIX as per requirement.
• Installing patches on AIX/Linux servers as per requirement.
• Actively scheduling and monitoring the jobs with scheduling tool.
• Analyzing the system logs to diagnose the root cause for the problem.
• Analyzing the root cause for the Server reboot issues, storage dis-connectivity issue, Work in coordination with the Hardware and Storage team to diagnose the cause and assist in resolving the issue.
• Elevate / Escalate calls/customer issues in a timely manner.
• Configuration and troubleshooting issues on networking services (like dns, ftp, nfs, ssh)
• Monitor system performance on daily basis to ensure adequate response times for production environment.
Halliburton Technology Pvt. Ltd. Jul '09 to Sep '11
IT Support Analyst
Responsibilities: • Monitor IT infrastructure devices on HP OpenView and HP Network Node Manager (NNM)
• Validating server alerts by logging into servers, routers, and switches
• Configuring user & group profiles on Unix servers and resetting user passwords
• Managing Disk and file system & Monitoring disk space utilization
• Mounting/ un-mounting the file system
• Restarting various services on Unix & Windows servers
• Scheduled various regular, periodic, futures, queue tasks by using crontab.
• Coordinated with second level server and network on call persons for any server/ network related issues
Infosys Ltd. Jul '07 to Jun '09
Technical Support Engineer
Responsibilities: • Troubleshot on all small business network products
• Configured modems and routers
• Rectified Internet and network connection issues
• Troubleshot issues related to wireless connectivity
• Used Remedy as a ticketing tool to log a trouble ticket and escalate issues