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Sr Unix System Administrator Resume Profile

NC

Summary:

  • Experience in building Servers using Jumpstart for Solaris and Kickstart for Linux.
  • 5 years of Experience in UNIX Systems Administration in Redhat Linux RHEL 3, 4, 5 and 6 andSolaris 8, 9 and 10
  • Expertise in installation, configuration of RAID volume management using Solaris Volume Manager SVM and Veritas Volume Manager VxVM along with Veritas File System VxFS for Disk Management ,Volume Management increased disk availability.
  • Expertise in creating and managing Logical Volume Manager LVM in RedHat.
  • Configuring, Troubleshooting and administering High Availability Clusters using Veritas Cluster Server VCS on various business critical database application production servers.
  • Worked on Solaris10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
  • Installed and maintained the machines with the updated Patches and necessary client software packages.
  • Worked on installing, configuring and administering DNS, DHCP,KDC/LDAP, NIS, NFS, Mail servers,
  • , Veritas Netbackup, and RAID in heterogeneous environment.
  • Experience in Shell scripting and hands-on solving of day-to-day operational issues.
  • Worked on monitoring system performance and UNIX/Linux performance tuning Configuration.
  • Experience in virtualization technologies such as VMWare, ESX, zVM on Linux and LDOM and containers on Solaris..
  • Implemented Security Hardening per company policy using Solaris 10 features.
  • Experience in providing day-to-day user administration like adding, deleting and modifying users and groups and managing their queries.
  • Worked on Service management on Solaris 10 through SMF Service Management Facility .
  • Experience on Solaris Live Update Technology associated with an operating system upgrade or maintenance.
  • Planning and implementing Disaster recovery sites from the scratch and Involved in disaster recovery testing.
  • Experience in configuring Zettabyte file system ZFS by creating pools, snapshots and clones.
  • Experience in researching OS Issues, Applying Patches and opening the vendor Tickets.
  • Involved in installation, configuration and administration of Apache Webserver and Samba Server in Solaris and Linux environment.
  • Working knowledge of Redhat Satellite Server. Manage Systems , install patches, run remote scripts, upgrade OS via Redhat Satellite Server.
  • Creation, maintenance and administration of raw devices for Sybase and Oracle ASM databases.
  • Proficient in archiving and backups using tar, cpio, dd, ufsdump, ufsrestore commands. Day to day administration of the Development environment and Production and Test environment systems.
  • Hands on experience on configuring kernel core files and crash dumps in Solaris and Linux.
  • Experience working with NAS Team to allocate NAS on the servers and with Storage team to allocate LUN on SAN SAN EMC, Hitachi, to create/expand Filesystems on Unix/Linux platform.
  • Worked on Datacenter Migration project. Migrated Linux and Solaris servers from one datacenter to another with minimal downtime.
  • Good Knowledge on Network Administration such as configuring and administering network on servers.
  • Knowledge of Routers and Switches, Subnet, VLAN, TCP/IP, VPN.
  • Worked on Service Now, ResolveIT, NSAM and Remedy Action Request system, for ticketing and tracking asset records.
  • A Good team player with strong interpersonal and communication skill. Willing to take on extra responsibilities to get work done.
  • Supported 24/7 high availability production servers.

Technical Skills:-

Operating System

Red Hat Linux 6/5/4/3, Solaris 10/9/8.

Hardware

Sun TSeries , MSeries Servers, HP Proliant DL Servers DL 380 G6/G8,585 , HP Blade servers, Sun Enterprise E5000/5500/4500/450/420R/250/6500, Sun Fire 280R/V480/ 3800/4800/6800, E6900/E25K/15 Series server, HP/DELL Blade Servers, etc.

Third Party Tools

Symantec Storage Foundation Veritas Cluster Server VCS , Veritas Volume Manager.

Disk Management

Veritas Volume Manager VxVM , Logical Volume Manager LVM , Solaris Volume Manager SVM and RIAD technology.

Protocols

SMTP, SNMP, ICMP, TCP/IP, FTP, TELNET, UDP, DNS, DHCP.

Virtualiczation

VMware, LDOM, zlinux, Solaris Container.

Backup Management

Veritas Netbackup 4.x/5.x/6.x, Legato, Ufsdump, ufsrestore, dump, restore, tar, dd, cpio

Databases

Oracle, Sybase, DB2, MS SQL Server

Security

Sticky Bit, Access Control List ,TCP Wrappers, File Access Permission, Role Based Access Control.

Languages

Unix Shell Scripting

Network/Naming Services

KDC/LDAP, NIS, NFS, AutoFS, DNS, DHCP, Samba

PROFESSIONAL EXPERIENCE

Confidential

Sr Unix System Administrator

Responsibilities:

  • Apply patches on RHEL and Solaris systems and install security packages on servers and follow audit and compliance requirement.
  • Installation, Configuration Upgrade of Linux Red Hat 6.X, 5.X, 4.X and Solaris 10/9/8 .
  • Performed automated installations of Operating System using kickstart for Linux and Jumpstart for Solaris using Global Build Provisioning Tool.
  • Installation and configuration of Veritas Volume Manager and Veritas File System. Used VXVM to add disk, create new disk groups/volumes, resize, deport and import disk groups between servers.
  • Extensively used volume management tool using Veritas Volume Manager VxVM to create disk groups, volumes with RAID architecture and layered volumes
  • Heavily worked on Solaris Volume Manager SVM creating metadevices, soft partitions, mirroring the devices and space allocating to metadevices, detaching and clearing the devices if not in use.
  • Installed, Configured, Maintained and monitored VERITAS Clustered Servers VCS for High Availability HA Failover and redundancy. Configured new service group and resources for new application/database in Veritas Cluster Servers and involved in Disaster recovery testing.
  • Administration and maintenance of Virtualization technologies such as VMware and Containers.
  • Worked on Solaris 10 container technology, created non global and global zones, modified non global zone parameters, created file systems on non global and global zones.
  • Created zpools and Zettabyte file system ZFS , set quotas, create snapshots and clones in Solaris 10.
  • Monitor system performance and resource utilization and provide ongoing trend analysis for forecasting future resource requirements and kernel tuning to enhance the system performance.
  • Worked on creating and administering raw devices for Sybase and Oracle databases.
  • Creation and deletion of user accounts using sudo, NSM, GCD/LDAP.
  • Hands on Experience on Veritas Operations Manager. Register servers to VOM and upgrade VOM version from 2.x to 4.x.
  • Worked on large Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime. Involved in P2P, P2V, V2V migration. Worked on migrating servers from Legacy Model to Global Build Model.
  • Worked on Solaris 10, Service management on Solaris 10 through SMF Service Management Facility svcs, svcadm, svccfg etc.
  • Administered NFS, Automount, DNS, KDC/LDAP, Sendmail, DHCP, samba in heterogeneous environment.
  • Implemented Security Hardening per company policy using Solaris 10 features.
  • Worked with Legato team to maintain backup on the servers through Networker tool and verify successful completion of daily incremental and database backups, following developed procedures.
  • Worked with Storage Area Network SAN team to get LUNS EMC, Hitachi and scan them on both RHEL and Solaris servers to create/expand the Filesystem by using VXVM and also worked with Network Attached Storage NAS Team to allocate NAS on different servers.
  • Upgrade RHEL OS , install packages, patches on multiple systems and manage systems via Redhat Satellite Server.
  • Worked on Service Now and NSAM system for ticketing and tracking asset records.
  • Proactive maintenance on systems by timely scheduling of at jobs, batch jobs and Cron jobs, Autosys Jobs. Worked on Scheduling cronjobs, , installed the necessary packages for back up requirement.
  • Complete periodic checks of production and development systems CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
  • Write Shell scripts for system maintenance and automation of server
  • Troubleshooting Sun Solaris and RHEL problems, opening Oracle and Redhat Vendor tickets for Hardware and software supports.
  • Supported Follow the Sun Support comprising of 10000 servers globally

Environment: RHEL 6.x/5.x/4.x, Solaris 10/9/8 ,HP Proliant DL 380 G6/G7/G8, HP Blade, IBM Blade, TSeries and MSeries servers, Sun Fire 6800/E6500 Server, Sun Fire 280R/V480/, Sun E6900/E25K/15, T2000/5000 series, Sun Fire X2250, Sun Enterprise 4500/6500/450, SAN /EMC, ZFS, VMware, Veritas Volume Manager 5.x,6.x, VCS 5.x,6,x.

Confidential

Unix System Administrator

Responsibilities:

  • Installation, Maintenance, Administration and troubleshooting of Solaris 0 and Linux RHEL 5.x,6.x Operating Systems.
  • Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux.
  • As a Unix/Linux administrator primary responsibility included building of new servers which includes installation of OS, configuring of various OS-native and third party tools, securing of OS, installing configuring, job scheduling.
  • Building, Installing and configuring Veritas cluster Server for High Availability. Freezing and Unfreezing of service groups, configure private heartbeat connections, IO fencing.
  • Expertise in Logical Volume Manager LVM , for Disk Management ,Volume Management increased disk availability.
  • Installation, configuration and administering of Veritas Volume Manager, and Veritas File System. Implementation of RAID techniques and the creation of Disk group and volumes, plexes using VERITAS Volume Manager VXvm and Solaris Volume Manager SVM .
  • Installation of patches and other software packages using RPM and YUM in Linux, pkgadd, pkginfo, pkgrm, patchadd, showrev p, patchadd p in Solaris.
  • Installed and configured Solaris 10 with Zone configuration. Created zones and Responsible for configuring and maintaining global and local zones.
  • Providing day-to-day user administration like adding/deleting users and managing users queries. Shell programming for routine administration tasks. Analyzing monitoring system performance through various system tools such as netstat, iostat , top.
  • Regular disk management like adding and replacing hard drives on existing servers and workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
  • Creation and scheduling of Cron Jobs such as for Backup, System Monitoring and removal of unnecessary files
  • Worked on scanning SAN on servers and allocate it to the Filesystems on RHEL and Solaris. Also worked on mounting NAS on RHEL servers.
  • Worked with DBA team supporting Oracle and Sybase database servers.
  • Planning and implementing Disaster recovery sites from the scratch and Involved in disaster recovery testing.
  • Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements
  • Co-ordinate with Backup Operator regarding daily backups, monitoring backup servers and perform database, application and system backup in the absence of the backup operators
  • Engaging and working with different vendors to determine problem resolution and root cause of hardware problems
  • Troubleshooting various problems, logging call with vendors.
  • Supported 24/7 high availability production servers

Environment: Solaris 11/10/, RHEL 5.x/6.x, TSeries and MSeries servers, , Veritas Cluster Server 6.x, HP Proliant DL's, Veritas Volume Manager 5.x,6.x, Veritas Cluster Server 5.x,6.x Sun 10K/15K, T5000 Series, Enterprise 4500/6500/450/420R/250 server, Sunfire 6800/4800/480, VMWare, Remedy.

Confidential

Unix System Administrator

Responsibilities:

  • Installation, Configuration Upgrade of Solaris 10/8 and Linux Red Hat 6.X, 5.X, 4.X .
  • through TPM Tivoli Provisioning Manager .
  • Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux
  • Apply patches every quarter on Solaris and RHEL systems and install security packages on servers and follow audit and compliance requirement.
  • Installed and configured Solaris 10 with Zone configuration
  • Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
  • Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
  • Installation and configuration of Veritas Volume Manager, Logical Volume Manager and Veritas File System
  • Experience with Volume creation resizing and troubleshoot to the client's development/production environment using Veritas volume Manager.
  • Worked on administrating/patching Solaris Global zones, LDOMs and servers with Solaris Live update for minimal downtime.
  • Worked on migrating servers from Solaris/Linux Security SSM/LSM Framework to Global Security Framework GSF Security Model.
  • Creating and maintaining Users, Disk space, LVMs and Process Monitoring in Linux.
  • Installation of patches and other software packages using RPM and YUM in Linux, pkgadd, pkginfo, pkgrm, patchadd, showrev p, patchadd p in Solaris.
  • Installation, Configuration and Administration of Apache Servers in Linux and Solaris Servers.
  • Implementation of RAID techniques and the creation of Disk group and volumes, plexes using VERITAS Volume Manager , Solstices Disc Suit/Solaris Volume Manager and Logical Volume Manager Managing disks and file system.
  • Worked on binding servers to KDC/LDAP and involved in User administration: creation and deletion of user accounts using scsu or powerbroker tool used to become root, and managing groups
  • Providing day-to-day user administration like adding/deleting users and managing users queries. Shell programming for routine administration tasks. Analyzing monitoring system performance through various system tools such as netstat, iostat
  • Regular disk management like adding and replacing hard drives on existing servers and workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
  • Creation and scheduling of Cron Jobs such as for Backup, System Monitoring and removal of unnecessary files
  • Worked on scanning SAN on servers and allocate it to the Filesystems on RHEL and Solaris. Also worked on mounting NAS on RHEL servers.
  • Supported Oracle and Sybase database servers.
  • Planning and implementing Disaster recovery sites from the scratch and Involved in disaster recovery testing.
  • Co-ordinate with Backup Operator regarding daily backups, monitoring backup servers and perform database, application and system backup in the absence of the backup operators
  • Engaging and working with different vendors to determine problem resolution and root cause of hardware problems
  • Troubleshooting various problems, logging call with vendors.
  • Supported 24/7 high availability production servers

Environment: Solaris 10/9/8 , RHEL 6/5, HP Proliant DL 380 G6/585 Gen 2, TSeries and MSeries servers, Sun Fire 6800/E6500 Server, Sun Fire 280R/V480/, Sun E6900/E25K/15, T2000/5000 series, Sun Fire X2250, Sun Entwrprise 4500/6500/450, Apache ,SAN /EMC, ZFS, VMware, Veritas Volume Manager 5.x/6.0, Veritas Netbackup 5.x/6.0, VCS 5.x/6 RP1.

Confidential

Unix Administrator

Responsibilities:

  • Respond to all UNIX systems problems 7 x 24 and resolving them on a timely basis. Ensuring high availability and stable operations of the UNIX infrastructure adhering to problem resolution, escalation procedures and notify management of problem areas and develop backup strategies and disaster recovery plans.
  • Independent problem solving and a good team player with strong interpersonal and communication skills.
  • Disk and File system management through Veritas Volume Manager Solaris , Logical Volume Manager HP-UX, AIX, Linux
  • Administered SUDO, SSH, SOX Sarbanes Oxley security compliance and other security tool.
  • Installation and configured Solaris 10 with zone configuration.
  • Trouble shooting of day to day system and user problems . User management as per requirement and proactive actions
  • Worked on scanning EMC devices on RHEL systems provisioned by SAN team.
  • File system management, mounting and unmounting local and remote file systems
  • Assisted in Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery.
  • Systems performance monitoring.
  • Taking pro-active action plan for various issue management. Good communication and interpersonal skills.
  • Performance management Capacity planning
  • Supported 24/7 highly available critical system.

Environment: Solaris Solaris 8 ,9,10 , RHEL 3,4,5, Sun Enterprise E35000 450/420R/250 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000, SPARCstation 10, Sun Sparc Ultra 1,5,10, ZFS and Veritas File System 3.0, clustered nodes.

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