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Sr. Unix Administrator Resume

Thousand Oaks, CaliforniA

PROFILE SUMMARY:

  • More than 6 years of industry experience in leading Unix infrastructure team of System Administrators on Solaris 8 - 11, Red Hat and CentOS Linux, and Vmware.
  • Extensive experience installing, configuring, maintaining and supporting Sun Solaris, RedHat Linux OS on Productions environments.
  • Troubleshooting and maintenance experience on HP Blade, Dell PowerEdge, Sparc, x86 servers.
  • Extensively experienced with various methods of Solaris Systems Installation and Migration using VMware migration, Jumpstart, Kickstart.
  • Experience working with Solaris Flash used to archive data and migrate to another system.
  • Jumpstart (JET), ZFS, zpool, LDOM and zones proficient.
  • Shell Scripting for job automation.
  • Proficient in Backup utilities used for Restoring, Cloning and Mirroring using Veritas Netbackup.
  • Experienced in studying the kernel performance issues using various utilities like Topas, vmstat, svmon.
  • Proficient with configuring and maintaining NFS, DNS, NIS/NIS+, DHCP, SMTP, and Networking with TCP/IP.
  • Managing storage on EMC clarion and DMX.
  • Managing Solaris 10 ZFS ZPOOLs.
  • Building Ldoms on solaris 10.
  • Experienced in creating CRON jobs to automate various System Administration tasks using the crontab utility.
  • Experience with SMIT, LVM (Logical Volume Manager), Mirroring, User & System Resource Management, Paging Space Management and Job Scheduling.

PROFESSIONAL EXPERIENCE:

Confidential, Thousand Oaks, California

Sr. Unix Administrator

Responsibilities:

  • Leading a Solaris and Red Hat Linux build and migration team.
  • Creating and managing zpools on Solaris 10 LDOM and Zones, and RHEL on VMware
  • Working with variety of volume managers - Veritas Volume Managers, Solaris Volume Manager, LVM (RHEL)
  • Supported 24x7 data center production environment
  • HA support for Sun and Veritas Clusters
  • Shell scripting - writing scripts in bash to automate several repeatative tasks such as finding user information from across 2400 servers for security audits on a daily basis, post server build checklists, etc
  • Installing, configuring and managing Solaris 8, 9 and 10 on Sun Enterprise systems, Administered, maintained Red Hat Linux Release 4 and 5, and somewhat AIX 6.1
  • Installing various 3rd party and freeware modules and packages as required, e.g perl, gcc, python, etc
  • Migration of Solaris and Linux servers using EMC RPA recoverypoint.
  • Monitoring and administration of EMC Clariion storage.
  • Working with Project manager and lead DBAs and plan migrations.
  • Configuring domains on M4000 & M5000 servers.
  • Working on server Hardware upgrades.
  • Creating Sun virtualization zones/containers/LDOMS (logical domains )
  • Documentation of new application installation and solutions.

Confidential, Providence, RI

Unix Administrator

Responsibilities:

  • Installed, configured and managed Solaris 8, 9 and 10 on Sun Enterprise systems, Administered, maintained Red Hat Linux Release 4 and 5 (and AIX and HP-UX )
  • Patching Sun Solaris 10 and RHEL 5 servers with latest patch clusters, breaking mirrors, and re-mirroring.
  • SAS70 and SOX security audits
  • VTL support from OS (HBA compatibility, firmware updates)
  • Troubleshooting Hardware, Operating System Application & Network problems and performance issues.
  • Shell scripting - for security audits and remediation, user-administration, server monitoring and automation
  • Configured Jumpstart Enterprise Tool kit to provided Jumpstart installations on more than 270 servers and performed upgrades and troubleshooting of servers remotely.
  • Configured and Administering Solaris Jumpstart Server, AIX NIM Server and Linux Kick start Server.
  • Support Sun and Intel servers with Solaris and Linux operating systems
  • Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T-series Servers with SUN ZFS
  • Server Virtualization using Solaris Containers (zones) and VMWare.
  • Creating Sun virtualization zones/containers/LDOMS (logical domains ) installation, configuration, troubleshooting, start, stop, upgrade and code deployments on all the production and testing servers.
  • Mirrored volumes on the Sun Sparc servers.
  • Created NFS, UNIX admin mount point, and patch installation of all QA servers.
  • Installed, Configured and supported Oracle HA resource groups
  • Worked on CA NSM tool monitoring for monitoring various applications and networks.
  • Installing and configuration and maintenance of Veritas Netback up 4.5/5.1 and TSM
  • Implemented and configured Backup policies and Storage Units.
  • Managing disk storage with Veritas Volume Manager 3.5/4.1 and Solaris Volume Manager with Veritas File System (VxFS).
  • Written Shell Scripts to collect the System performance Information, account information on a daily basis.
  • Implemented NIS and NFS for administrative and project requirements.
  • Setting up the thresholds on the parameters (CPU/Memory/Disk/Network) and alerting the users when the usage reaches the thresholds.
  • Tuning the kernel parameters based on the application/database requirement.
  • Configuring SUDO and granting root permission to users for performing certain activities.
  • Monitoring System Performance - Virtual memory, System events, Swapping, Disk utilization, CPU utilization.
  • Troubleshooting of NFS servers, NFS Clients in Auto Mount Environment.
  • Installed and configured Sun Cluster 3.0 & 3.1 .
  • Solaris Volume Manager/Solstice Disk Suite for Disk Device Management.
  • Handling CPU panic, memory problems and other hardware failures with coordination of vendors.
  • Configured FTP, Telnet, sFTP, SSH, iptables and SUDO upgrades for the servers.
  • Configured EMC/SAN disks in Solaris Servers and HP.
  • Automatically and manually taking backups / archives, with previously configured policies using Veritas Netback up.

Confidential, Minneapolis, MN

UNIX Administrator

Responsibilities:

  • Performed server installation and administration on Solaris, AIX and Linux.
  • Administrative tasks such as System Startup/Shutdown, Backup Strategy, User Management, Security and Network management.
  • Performed the administration of the Domain Name Server and configuration of the Database Files for BrightStor.
  • Experienced supporting the SAN/NAS environments and administering Clusters.
  • Monitoring and administration of EMC Symmetrix, DMX-4, DMX-3 DMX2000.
  • Planned and Implemented EMC Symmetrix SRDF and Time finder solutions
  • Troubleshooting Backup and Restore problems and performed Day-to-Day trouble shooting for the end users on Solaris based applications.
  • Creation / dissolving of Meta devices Striped and Concatenated using symcli.
  • Planning and Creation of Dynamic RDF groups and pairs, management of snap pools.
  • Adding and replacing Disks in the libraries.
  • LUN Creation and mapping to the servers running Solaris, Linux and Microsoft.
  • Performed OS upgrades and Patch loading as and when required.
  • Constant Monitoring of System Performance and managed file systems.
  • Responsible for taking Backups using CA ARCserve.
  • Responsible for Connectivity Issues among various Servers.
  • Responsible for Installation of various software components on several servers.
  • Performed scheduled incremental backups using CA Brightstor Arcserve.

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