Summary:

• 6 years of System Administrator Experience under heterogeneous environment of Redhat Linux 3, 4, 5 and 6 , Solaris 8, 9 and 10 and HP-UX 11.x and have a basic knowledge about AIX OS.
• Installed and maintained the machines with the updated Patches and necessary client software packages by using pkg , RPM, YUM, sw etc.
• Expertise in building Servers using Custom Jumpstart for Solaris, Kickstart for RHEL Linux and Ignite for HP-UX.
• Expertise in Installation, Configuration and file system management by creating RAID level through Veritas Volume Manager VXVM and Solstice Disk Suite Solaris Volume Manager in Solaris and Logical volume Manager LVM in Linux and HP-UX.
• Expertise in Installation and Configuration of Veritas Cluster Services VCS for 5 nodes from scratch.
• Strong experience in administering Veritas Clusters services VCS and HP MC/Service Guard in supporting high availability mission critical servers.
• Experience with KDC LDAP and NIS on Linux and Solaris. Also, experience in configuring and administering NFS, Auto mount, FTP, SAMBA, DNS, DHCP.
• Experience in Unix Shell scripting on Linux/Solaris servers.
• Experience in configuring Zettabyte file system ZFS by creating pools, snapshots and clones.
• Worked on Service management on Solaris 10 thru SMF Service Management Facility svcs, svcadm, svccfg etc.
• Administer Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems and managed resources on local and global zones. Also created Branded zones by creating a Flash Achieve for Solaris 8 local zone on Solaris 10 global zone.
• Solaris Live Update Technology associated with an operating system upgrade or maintenance.
• Supported LDOM Virtualization and installed, configured and maintained Solaris10 Operating System on it.
• Experience working with NAS Team to allocate NAS filer on the servers and with worked with SAN team to allocated SAN LUNS EMC, Hitachi on the server.
• Experience in scanning/rescanning the NEW LUN's on the servers and create/expand Filesystems on Unix/Linux platform.
• Experience of Linux/Unix kernel tuning and System Performance tuning and Hands-on analyzing Linux and Solaris kernel core files and crash dumps.
• Excellent Knowledge of Virtualization technologies such as VMware, ESX, ESXi, zVM in Linux, LDOM, zones, containers in Solaris.
• Installation and configuration Veritas NetBackup and Legato backups on Linux and Solaris servers. Also worked with backup team to fix all the clients for successful backups.
• Proficient in archiving and backups. Using tar, cpio, dd, ufsdump, ufsrestore, dump, restore, fbackup, frecovery commands.
• Experience managing servers through Redhat Satellite Server 5.x. Upgrade RHEL Operating System, apply patches, install packages by executing remote commands on multiple servers.
• Day to day administration of the DEV, QA, UAT and Production environment systems.
• Experience in configuring and testing Disaster Recovery Site.
• Experience working on SRDF technology which is setup by SAN Team and have knowledge on how SRDF works.
• Supported various databases like Oracle, MySQL, DB2 and Sybase running on Unix/Linux server.
• Proactive maintenance on systems by timely scheduling of at jobs, batch jobs, Cron jobs and Autosys jobs.
• Implementation of TCP Wrappers, Sticky bit, Role Based Access Control RBAC and Access control List ACL for auditing and security.
• Proficient in Installation, Configuration, Support Maintenance of various HP Proliant DL, Dell PowerEdge, HP/DELL Blade Servers, SUN Enterprise SPARC, SUNFIRE 280R/V480/3800/4800/6800, E15K/25K, Tseries, Mseries.
• Experience in providing day-to-day user administration like adding, deleting and modifying users and groups
• Good Knowledge on Network Administration from the Linux and Solaris OS side and also knowledge of Routers and Switches, Subnet, VLAN, etc.
• Providing 24/7 technical support to Production environments
• A Good team player with ability to lead a team by example and motivate them to achieve desired objectives. Willing to take on extra responsibilities to get work done.

Skills:

Professional Experience:

Confidential

Sr. Unix System Administrator

Responsibilities

• Installation and Configuration of Linux Red Hat 6.X, 5.X, 4.X Solaris 10/8 Operation System OS on Sun/HP/Dell servers from scratch.
• Performing network based automated installations of Operating System using Kickstart for RHEL Linux and Jumpstart for Solaris through Global Build Provisioning tool.
• Installation, configuration and maintenance of RHEL OS on Virtualization technologies such as VMware.
• Installation of Operating System Patches and packages thru Opsware tool on RHEL/Solaris OS. Also Upgrading Firmware for HP Proliant DL and Blades Hardware.
• Implementation of RAID Levels and creation of Disk groups and volumes using Veritas Volume Manager , Solstice Disc Suite and Logical volume manager for managing disks and file systems.
• Installation, Configuration and Administration of High Availability Veritas Cluster Service VCS for redundancy purpose. Configurations of new service groups and resources for various Applications/Database for VCS.
• Installation, configuration, and maintenance services like NFS, Automount, FTP, SFTP in heterogeneous environment.
• Worked on Veritas Operations Manager VOM to administer all the servers using Symantec Storage Foundation.
• Knowledge of NIS, Kerberos, LDAP, DHCP, DNS, SMTP/Mail Server.
• Worked on solaris10 container technology i.e. created non global and global zones, modified non global zone parameters. Also created Branded zones by creating a Flash Achieve for Solaris 8 local zone on Solaris 10 global zone.
• Expertise in Disaster Recovery and Planning.
• Experience working on SRDF technology which is setup by SAN Team and have knowledge on how SRDF works.
• Experience in writing Shell scripts for system maintenance and automation of server.
• Worked on Migration Project for Linux/Solaris OS from Legacy server to New servers with latest OS on it. It also involves P2P, P2V, V2V migration.
• Analyzing and Monitoring system performance through various system tool such top, sar, vmstat, netstat, iostat, etc. and perform kernel tuning to enhance the system Performance.
• Preparation of performance acceptance criteria drafts for newer applications and participation in change control activities.
• Install patches/packages , alter channel subscriptions to upgrade OS, execute remote commands via Redhat Satellite Server Network release 5.1.1
• User administration: User login issues into the servers and sudo or Kerberos ksu access used to switch to root/service accounts.
• Proactive maintenance on systems by timely scheduling of Autosys batch jobs.
• Worked with Legato team to maintain backup and resolve issues with the backup on the servers through Networker.
• Worked on Scanning/Rescanning LUNS on both RHEL and Solaris servers which are provisioned by Storage Area Network SAN team and expand the Filesystem by using Veritas Volume Manager VXVM .
• Worked with Network Attached Storage NAS Team as well to provide read/write permissions for NAS filer on different servers.
• A good team player with excellent customer interaction and Strong analytical, problem solving and troubleshooting skills.
• Supported Follow the Sun Support FTSS for 10,000 DEV/QA/UAT/PROD servers globally.

Environment: Solaris 8,9,10, RHEL 3,4,5,6, Sunfire 280R/V480/V240, TSeries, MSeries Servers, HP/DELL/IBM Blade Servers, HP Proliant DL 380 G6/G7/G8 servers, DELL PowerEdge servers. Veritas Volume Manager 5.x/6.x, Veritas Cluster Services VCS 5.x/6.x.

Confidential

Sr. Unix System Administrator

Responsibilities

• Provide Production Support for Perimeter Security team. All the projects were related to Security like Proxy, Video conferencing, Citisft, Arcsight, Silvertail, etc..
• Worked on lot of security tools to make all servers are reflected under it.
• Installing, Configuring Upgrading Solaris 10/8 and Linux Red Hat 6.X, 5.X, 4.X OS on Sun/HP/Dell/Virtual servers from scratch.
• Performed network based automated installations of Operating System using Jumpstart for Solaris and Kickstart for RHEL Linux through TPM Tivoli Provisioning Manager
• Installation, configuration and maintenance of Virtualization technologies such as VMware, zLinux and LDOM. Worked on zVM's on mainframe LPAR with s390x arch.
• Installing operating system patches, packages thru YUM/patchadd/script and also through TPM on RHEL/Solaris OS.
• Extensively used volume management tools using Veritas Volume Manager VXVM and Logical Volume Manager LVM to create Volumes and apply appropriate File system on it for both RHEL and Solaris OS.
• Heavily worked on Solaris Volume Manager SVM creating metadevices, soft partitions, mirroring the devices and space allocating to metadevices, detaching and clearing the devices which are not is use.
• Support Uplogix terminal servers which are used to connect the console of Solaris servers and Vendor specific appliances.
• Installation, setup, configuration, security administration and maintenance for flavors of servers like NFS, FTP, SFTP Samba in heterogeneous environment.
• Knowledge of NIS, KDC LDAP, DHCP, DNS, SMTP/Mail Server, Apache Servers, Proxy Servers.
• Worked on solaris10 container technology i.e. created non global and global zones, modified non global zone parameters.
• Experience in Disaster Recovery and Planning. Also have a strong knowledge of SRDF.
• Writing Shell scripts for system maintenance and automation of server.
• 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.
• Experience in Monitoring System performance and do kernel tuning to enhance the system Performance.
• Experience with change control process for any changes done on the server.
• User administration: creation and deletion of user accounts using scsu or powerbroker tool used to become root, and managing groups.
• Worked with Netbackup team to maintain backup on the servers through Veritas Netbackup/SAN.
• Verify successful completion of monthly Full backup, daily incremental backup and weekly cumulative backups following developed procedures.
• Worked with Storage Area Network SAN team to create LUN on EMC, Hitachi, HP, IBM Storage and Sun StorEdge.
• Scan/Rescan the LUNS on Both RHEL and Solaris servers and expand the Filesystem by using LVM and VXVM Worked with and Network Attached Storage NAS Team as well to allocate it different servers.
• Supported 24/7 high availability production servers

Environment: Solaris 8,9,10, RHEL 3,4,5,6, Sun Enterprise E5000/5500/6500 server, Sunfire 280R/V480/6800/4800/480, E10k/25K, TSeries, MSeries Servers, HP/DELL Blade Servers, HP Proliant DL servers, DELL PowerEdge servers, Veritas Volume Manager VXVM 5.x,6.x, Veritas Cluster Services VCS 5.x,6.x.

Confidential

Unix System Administrator

Responsibilities

• Installation, Configuration, Administration for RHEL Solaris OS and Administration of HP-UX OS.
• Installation of patches and other software packages using RPM and YUM in Linux, pkgadd, pkginfo, pkgrm, patchadd, showrev p, patchadd p in Solaris and swinstall, swremove, swlist in HP-UX.
• Creating depot for patches and installing packages using depot in HP-UX and Build RPM using RPMBuild in Linux.
• Adept Network based operating system Installation using Custom Jumpstart for Solaris, Kickstart for Linux, Ignite for HP-UX.
• Create custom Powershell scripts for the automation and deployment of routine tasks and solutions
• Installation, Configuration and file system and RAID volume management through VXVM and Solaris Volume Manager SVM in Solaris and LVM in Linux and HP-UX.
• Installation, Configuration and Administration of High Availability Veritas Cluster Server VCS and HP MC Service Guard for failover and redundancy purpose.
• Excellent knowledge of Linux/Unix kernel tuning, building customized kernels.
• Installation, setup, configuration, security administration and maintenance for flavors of servers like NFS, FTP, Samba, NIS, NIS , DHCP, DNS, SMTP/Mail Server, Apache Servers, Proxy Servers in heterogeneous environment.
• Experience in installing, configuring and maintaining WebLogic Application Server and Websphere Server with java Application tools on Linux and UNIX servers environment.
• Created Zettabyte file system ZFS in Solaris 10. Created pools, snapshots and clones. Exported ZFS from local zones to local zones.
• Configured NAGIOS user on the server to monitor the server with our monitoring tool called ground works and setup trust relation between the new server and ground works server.
• Implemented Security Hardening per company policy using Solaris 10 features like TCP Wrappers, Sticky bit, RBAC and ACL.
• Worked on Solaris 10 container technology and created/used LDOM in Solaris 10 and installed multiple OS.
• Created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Worked on Service management on Solaris 10 thru SMF Service Management Facility svcs, svcadm, svccfg etc.
• Worked on virtualization technologies such as VMWare, ESX, ESXi, etc on Linux.
• Installation, configuration, administration, and maintenance of Veritas Netbackup application.
• Knowledge in creating make net recovery as make tape recovery for backup and system cloning in HP-UX.
• Verify successful completion of monthly Full backup, daily Cummilative incremental backup and weekly Full backups, following developed procedures and also involved in disaster recovery testing every year.
• Proactive maintenance on systems by timely scheduling of at jobs, batch jobs and cron jobs.
• Writing Shell scripts for system maintenance and automation of server.
• Interacted with vendors Sun/HP/EMC/Dell for Hardware and software supports.
• Created environment/filesystem for Oracle RAC running on Linux and Unix platform. Used GFS on Linux and Vertias SFRAC on Solaris for oracle RAC.
• 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.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements
• Maintaining the CPU Memory utilization of Servers reports on the WEB
• Worked with Storage Area Network SAN team to create LUN on EMC, Hitachi, HP, IBM Storage and Sun StorEdge.
• Worked with NAS team as well.
• Preparation of performance acceptance criteria drafts for newer applications and participation in change control activities, Involved in Memory sizing of different applications.
• Supported 24/7 high availability production servers

Environment: Solaris 8,9,10, HP-UX 11.x, RHEL 4.x, 5.x, Sun Enterprise E450/5000/5500/6500 server, Sunfire V215/V440/280R/V480/V490/6800/4600/4200, E10k/25K, TSeries, MSeries Servers, HP-9000, N4000-75, N4000-44, rp3440, rp4440, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers.

Confidential

Unix System Administrator

Responsibilities

• Installing, upgrading and configuring operating systems like Solaris, HP-UX and Linux and application Packages.
• Expertise in configuring network installation Servers using Custom Jumpstart for Solaris, Kickstart for Linux and Ignite for HP-UX.
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery through VXVM and SVM in Solaris.
• Created physical and logical volumes, groups using logical volume manager on LVM in Linux and HP-UX.
• Configured and supported Veritas Cluster Server and HP MC Service Guard Cluster servers.
• Providing day-to-day user administration like adding, deleting and modifying users and groups and solving their queries.
• Experience in configuring and administering FTP, SAMBA, DNS and DHCP.
• Configured NFS Servers, Diskless clients and Auto clients and auto mounted the file systems using direct and indirect maps.
• Administering, Creating, Mount, Unmount, File System Integrity, Backup/Restore the File System.
• Backing up Data, Tape Management Planning using tar, cpio, dd, ufsdump, ufsrestore, dump, restore fbackup, frecovery commands.
• Supported various databases like Oracle, UDB, SQL Server on Unix/Linux server.
• Implementation of security through TCP Wrappers, Sticky bit, RBAC and ACL.
• Handle and resolve local area network connection problem within the head office segment and WAN connection problems in the absence of the Network Administrator.
• File and Print servers Installation, Support and Troubleshooting.

Environment: Solaris 8/9, Linux, HP-UX, Sunfire 280R/V480, E10k/25K, TSeries, MSeries Servers, HP 9000 D/K/L/rp Series servers, VCS, Veritas Volume Manager, Shell Scripting.