SUMMARY

• 9 Years of experience in Linux (Redhat 5/6, SUSE Linux 10/11), Solaris (9/10), AIX 5.3/6.1/7.1 and VMware Administration and Server Support.
• Experience on migrations and conversions of AIX and Linux servers from Physical to virtual and virtual to virtual.
• Ability to perform Patch Management, Service Pack Upgrades on Linux, Solaris and AIX.
• Installation and configuration of Samba Server on Solaris, Linux.
• Installation, Configuration and management of Sun Servers with RAID Technologies.
• Ability to support the server with the full efficiency and dedication utilizing skills.
• Extensive knowledge on LVM (Volume Groups, Logical Volumes and File systems) creation, management and troubleshooting.
• Experienced with installation, support, configuration and maintenance of Redhat Linux, SUSE Linux, AIX and Windows 2003/2008 Operating System.
• Experienced with Virtualization technological such as XEN, VMware ESX and ESXi servers 4.0 and 5.1.
• RDBMS installation and support including Oracle, SQL Server, MySQL and use of SQL in various contexts
• Experience in Server build using PXE - Boot and kick start Process on multiple servers.
• Installation of patches, Security fixes, packages on Linux, AIX and Windows NT/2000 Servers.
• Administration of Storage Area Networks (SAN), EMC Clarion, EMC Symmetric, Hitachi data systems and HP EVA.
• Excellent ability in writing in shell scripting (Korn, Bash).
• Worked with Backup Team to Configure the Master and Client Backup servers Using VERITAS Net Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Installation of NFS, FTP, DNS, NIS, Sendmail, Postfix and HTTP on Linux Operating
• Configure a workstation as a client to NIS and LDAP.
• Implementing local backup and disaster recovery.
• Strong experience in file access permissions.
• Configuration of local and network printers and basic troubleshooting.
• Monitoring the performance of servers using nmon, top, topas, vmstat and iostat.
• Creating /removing swap space, checking swap space usage and increase/decrease if required.
• Remediating the servers by disabling the then active but unsecured daemons and services.
• Experience of working in Data centers with 24X7 Production and On-Call Environments.
• Experience in helpdesk management, desktop pc support & troubleshooting and supervising desktop pc technicians.
• Coordinating with Vendors for any critical hardware problems and driving the issue to resolution.
• Excellent communication & interpersonal skills. Proven strength in troubleshooting, problem solving, coordination, analysis and a proven track record of success

TECHNICAL SKILLS

Operating Systems: AIX 5.2/5.3/6.1/7.1, SUSE Linux SLES 10/11, Red Hat 5/6, Windows 2003/2008/XP, Solaris 9/10

ServersSun Enterprise servers: E450, E250, Sun SPARC Enterprise M4000 Server, M5000 Server, IBM Bladecenter, IBM pSeries, IBM xSeries, HP Gen7 and Gen8, Dell, Cisco

Applications: IBM Websphere, MQSeries, AMQ, Weblogic, Apache, Geronimo, IBM HTTP Server, Netscape, topend, tomcat, Portal, Message Broker, DataPower, Connexus

Storage: IBM N-series, IBM DS3200, NAS, EMC Clarion, TSM

Networking & Communication Protocols: TCP/IP, HTTP/HTTPS, ftp, sftp, telnet, SSH, VLAN, Nortel Switches, CISCO switches

Alerting Technologies: BMC Remedy, Remedy 7, Nagios

Shell Scripting: Korn, Bash

Virtualization & High Availability: XEN, VMware, VIOS, LPAR, HACMP, DRBD, Pacemaker

Databases: DB2, Informix 9/10/11, Oracle 7/8, SQL Server 6.5/7

Programming Languages: C/C++, HTML, XML, COBOL, FORTRAN

Other Tools: Tivoli Performance Viewer, VERITAS Volume Manager, putty, MS Word, MS Excel, MS Visio, MS Project, MS access

PROFESSIONAL EXPERIENCE

Confidential, San Francisco, CA

UNIX/Linux System Administrator

Responsibilities:

• Production support for 6000+ servers with SuSE Linux Enterprise servers and IBM Hardware.
• Working with DRBD and Pacemaker cluster tools.
• Configuring and supporting virtual servers by using Xen hypervisor.
• Encryptions of file system and raw devices in Linux with Vormetric encryption software, register and unregister to the appliances for encryption and decryption.
• Configuration, implementation and administration of clustered servers on Linux environment by using pacemaker.
• Configuring, Maintaining of NAS and SAN storage.
• Working for migrations Linux physical to virtual, virtual to virtual.
• Working on AIX to Linux conversions.
• Migrating data between storage arrays and internal and external disk.
• Adding storage and creating raw devices in Linux servers for configuring databases Informix and oracle.
• Trouble shooting the issues with virtual and physical networks pertaining to OS and hypervisor.
• Resolving STONITH errors in pacemaker clusters and adding resource monitors to trigger STONITH.
• Managing servers in cluster after migrations through shell script.
• Involved in resolving Split-brain issues with DRBD, ensuring data security and enabling data replication.
• Resolving and creating Tickets related to migrations, conversions via BMC Remedy ticketing tool.

Confidential, Plano, TX

UNIX System Administrator

Responsibilities:

• System administration, maintenance and support for 1600+ servers with Solaris, Linux and HP-UX Operating System.
• Application design, development and implementation according to operational standards ( SDLC).
• Developed automated solutions for product support that includes developing & managing the deployment architecture for the application.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Patching of RHEL5 servers for EMC Powerpath Upgrade for VMAX migration.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 5.0.
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Managed and upgraded UNIX’s server services such as Bind DNS.
• Responsible for setting cron jobs on the servers.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Configuration and administration of NFS and Samba in Linux.
• Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Attended calls related to customer queries and complaints, offered solutions to them.
• Worked with monitoring tools such as Nagios and HP Openview.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Supported the backup environments running VERITAS Net Backup 6.5.
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Participated in on-call rotation to provide 24X7 technical supports
• Maintaining the Remedy tool, which is ticketing tool, reviewing the ticket complexity and assigning it to proper technical SA based on their technical skill set.
• Review the ticket description and segment the tickets into the various buckets based on complexity
• Ensuring high and critical severity work is assigned immediately to senior & above resources
• Defining the batch process, which will ensure to get the same kind of tickets into a batch and getting assigned to the Admin to have quick resolution.
• Implementing hand off rules & document the same in hand off tracker from one shift to another shift to have better hand shake and that ensures proper handover.
• Report weekly dispatch effectiveness metrics to the pool management and dispatch lead
• Conduct analysis to improve metric performance continually
• Pull daily measurements for tracking performance and quality of the Pool
• Update the visual performance board(s) for the team and report to the team issues of concern within the daily cadence
• Measure and refine segmentation of complexity and batching rules for improved efficiency over time
• Working with all the dispatchers and quality teams across RDC to standardize dispatch methods to manage multiple pools and gain additional scale.
• Coordinating across the levels in the pool from technical skill level and managers
• Actively participating in continual improvement from process standpoint.
• Contribute to defect prevention activities in the pool (in coordination with DA's)
• Conducting daily pool huddles and raising issues / concerns / ideas / initiatives / highlights / appreciation's in the pool
• Supporting the pool during Standard Assessments from dispatch component stand point
• Conduct dispatch watch & coach self-assessments and improve the score from the last review
• Ensuring all the documents are getting updated with version history and maintain them in central location such as TR.

Confidential, Columbus,IN

UNIX System Administrator

Responsibilities:

• Level 2 UNIX System Administration for supporting Sun Solaris 9/10, RHEL 5, SUSE Linux 9/10 with VERITAS Volume Manager 4.1 and Windows 2003/2008 operating systems.
• Install, configure and troubleshoot Virtualization technologies such as XEN, Pacemaker, DRBD VMware, LPAR, and VIOS.
• Install and troubleshoot middleware applications such as IBM Websphere, MQSeries, AMQ, Weblogic, Apache, Geronimo, Message Broker and Connexus on UNIX servers.
• Monitor systems CPU, memory and disk utilization and network statistics using Wire Shark technology.
• Implementing RAID 0, 1, 5 using VERITAS Volume Manager.
• Systems administration, maintenance and monitoring various day-to-day operations.
• Processes administration and management like monitoring, start/stop/kill various processes/sub process.
• File System administration and management like monitoring various logs, file system sizes
• User administration and management like add change and delete.
• User profiles, security authorizations etc.
• Maintaining and changing file systems & disk assignments using meta disk
• Installation/Upgrade, System Startup & System Shutdown as needed.
• Monitor System Performance Parameters using nmon, iostat, and vmstat and fine-tuning.
• Customized the user CDE environments and user profiles.
• Scheduled various regular, periodic, futures, queue tasks by using crontab, at.
• Resolved system errors and crashes, disk space problems, huge file sizes, file system errors.
• Administration and trouble shooting skills on Disks & File Systems, Users & Groups.
• Documented various regular administrative tasks and backup procedures etc.
• Working knowledge in services like Rlogin, Telnet, FTP, X-Window System etc.
• Monitor bad user logins and unauthorized users.
• Created New Slices, New File Systems, Mounting File Systems, Unmounting File Systems and Huge Slices using Daisy Chains
• Install VERITAS clustering on WebSphere server.
• Perform FSCK on the corrupted file systems in AIX and Linux servers.
• Perform Nightly backups on UNIX (AIX/Linux) and Windows server using TSM V5.3/5.4.
• Write shell scripts (Korn, Perl, BASH) for automation purpose.
• Configure TCP/IP network for the public network and backup network.
• Work with LVM, Disk mirroring, RAID, Disaster Recovery on UNIX servers.
• Configure LUNs on NetApp and IBM DS3200 storage.
• Provide 24X7 supports on pager rotation and third shift basis remotely for all the stores.
• Develop internal website on Linux server and create/review/update documentation upon request using html coding.

Confidential

System Admin & Technical Support Executive

Responsibilities:

• Supporting users through email, on call and troubleshooting.
• Carry out regular routine preventative maintenance schedule on servers.
• Monitor and analyze servers and resolve any problems, maintain systems reporting, tuning
• Maintaining integrity of security with the use of group policies across domains.
• Creating and managing Organizational Units, Groups and users.
• Maintaining inventory of all components including systems and other hardware.
• Maintaining user’s data backup by creating particular user folder in File Server and applying security permission on folders.
• Time to time dressing of the cables and patch cords.
• To maintain all active components on the network such as the Switches, Hubs, Firewall, Audio codes.
• Involved in Second level troubles shooting.