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System Administrator Resume Profile

PROFESSIONAL SUMMARY:

  • Over 6 years of experience as UNIX Administration in SUN-SOLARIS 10, 9, 8 , REDHAT 3/4/5/6 and Windows, knowledge in computer hardware and I/O devices. Strong experience in System Administration , Installation, Upgrading , Patches , Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX SUN Solaris, Red Hat Linux Systems.
  • Involved in complete Administration tasks on UNIX SUN Solaris, Red Hat Linux and documentation for the projects executed.
  • Strong technical background in Storage, Disk Management, Logical Volume Management LVM and logical partitioning.
  • Experience in using VERITAS Volume manager. Creating new file systems, mounting file systems and un mounting file systems, Hands on experience in Tivoli Storage Manager TSM .
  • Experience in installation and configuration of WebSphere, Apache, IPlanet, BEA WebLogic, LDAP, TAM Tivoli Access Manager and mail servers SMTP .
  • Extensive experience in Installation and configuration of Windows 2008, 2003, 2000, Active Directory on single or multi domain platforms.
  • Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
  • Setup and configured network TCP/IP on SOLARIS including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on Solaris Servers.
  • Proficient in configuring JumpStart and KickStart servers to initiate installation of Solaris and RedHat Linux on several machines at once.
  • Experience using diagnostic and debugging tools such as Dtrace, Strace, truss and Top.
  • Worked on group/user administration, startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation.
  • Highly experienced with Storage Administration like EMC SAN Administration, NetApp, NAS Administration, Veritas NetBackup and Legato.
  • Experience working with Storage Area Network SAN , EMC CLARiiON, EMC Symmetrix DMX, Hitachi SAN,VMware.
  • Experience in writing Shell scripts using ksh, bash and perl for process automation of databases, applications, backup and scheduling.
  • Expert in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
  • Experienced in DNS, NIS, NFS,NSLookUp,Snoop FTP, NIS, Samba Server, LDAP, remote access, security management, and system troubleshooting skills.
  • Extensive working knowledge on Role based Access control RBAC and Role Based Security.
  • Build and configure complex clustered environments using Solaris 10, Sun Cluster and Veritas Cluster with shared storage configured from Netapp arrays. Measure and analyze host and storage behavior during injected faults.
  • Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
  • Performance Monitoring Tuning - iostat, vmstat netstat, nfsstat.
  • Experience configuring Firewall and security using SSL, KERBEROS, IPchains, IPtables, TCP Wrappers, Tripwire, and port scanners.
  • Security compliance on the OS for SOX and internal audits.
  • Experience in performing DBA tasks such as creating users, roles, tables, tablespaces, imports and exports for development of databases.
  • Provided production support in an on-call rotation in a 24x7 environment.

SKILL SET:

  • Operating Systems Solaris 8/9/10, Linux 3/4/5/6, Windows 2000/2003/2008 Server.
  • Windows NT4.0, Windows 98/2000/XP.
  • Hardware Sun Servers E4500, E3500, M5000 and E450 , IBM RS/6000,
  • p520, p550, p570, p590, p595, p670, p690, Ethernet hubs, and switches.
  • Tools Sun Cluster 3.2, VERITAS Netback up 6.0, Admin Tool, Ufsdump,
  • VERITASStorage Foundation Suite, Solaris Volume Manager, File manager, send mail.
  • Languages Shell Programming, SQL, PL/SQL, and HTML.
  • Databases Oracle 8i/9i/10g, SQL Server 2005/2000, MS-Access, MySQL, PL/SQL
  • Networking FTP, TCP/IP, NIS, NFS, DNS, ALE, and BAPI.
  • Scripts Bourne, Bash, Korn Shell.
  • Storage and Backup Tivoli Storage Manager, VERITAS Net Backup.
  • Web and Application Web Logic Server 8.1, WebSphere Application Server 5.0.

PROFESSIONAL EXPERIENCE:

Confidential

Unix/Linux System Administrator

Responsibilities:

  • Experienced in redefining volume groups, migrating, mirroring logical volume using VERITAS VOLUME MANAGER and SDS.
  • Installed configured containers, zones with in the SUN Solaris 10 Zetta Byte File System ZFS . Used the Solaris 10 Service Management Facility SMF to simplify management of various system services.
  • Configuring the systems for TCP/IP Networking with the existing Local Area Network. Setting up SSH and SCP features between SUN systems and other UNIX hosts.
  • Extensively used glance, top, ifconfig, netstat, nfsstat, ndd, traceroute, Siteminder, nslookup, tcpdump etc. for System configuration and performance monitoring.
  • Configured Ethernet VLANs with RS/6000 IBM Servers, Cisco Routers 1741/3745 series and Cisco Switches Catalyst 2912 utilizing RJ45 CAT5 cables for the internal LAN, and a T1 fiber uplink across a Cisco backbone for connection on the WAN.
  • Using Veritas Volume Manager for Backup and Restore from SCSI Hard Drives on Clariion CX200 and Tape Drives using various policies like daily, incremental and differential backup.
  • Used Cascaded SRDF Symmetrix Remote Data Facility for extended distance replication, using a dual role SRDF R2/R1 R21 device that can act an as R2 and R1 at the same time.
  • Supported the SAN storage environments including Brocade switches, EMC arrays, DS4300, DS4700 and Emulex HBAs.
  • Failover/Pre-Failback and verification of the same incase of outage in the high environment using VCS Veritas Cluster Server .
  • Configure IBM DS4000 storage, configure arrays and created logical drives and mapped with the AIX hosts.
  • Created vmdisks, plexes, volumes using the Volume Manager as per requirements and replaced failed disks using vxdiskadm.
  • Upgrades, patches and OS installation using Jumpstart for SUN Solaris and Kickstart for Linux.
  • Installed and configured VMware ESX server and SUN VirtualBox to allow virtualization of a physical server to virtual servers that provide running multiple Operating Systems on a single server in a data-center environment for dramatic reduction in costs.
  • Worked on Linux Red Hat/SUSE 9 in conjunction with Solaris 8, Apache 2.0 web servers and an Oracle 9 database.
  • Automated tasks by writing Bash/C/Korn/PHP/Python and Perl shell scripts to simplify various UNIX and Linux environments.
  • Configured and installed Logical Domains LDOMs and Zones for running applications in different zones in Solaris 10.
  • Configured a Jumpstart server by editing the sysidcfg, rules and profile files and establishing Jumpstart software alternatives troubleshooting and resolving problems.
  • Storage migration from Hps Storage Works to EMCs DMX 1000 and 2000 storage and OmniBack/Hitachi 9500 series storages.
  • Writing and modifying shell scripts Ksh, tk, Jython, Perl to perform automated administration tasks.

Environment: Sun Solaris 10/9/8, Linux 5/4/3, Oracle 10g, SUN Servers, SUN Fires, Linux and Jump Start, Fujitsu Prime power servers, Veritas Volume Manager VxVM , LDAP, EMC Storage SAN, Veritas Cluster Server VCS , VMWare servers, Weblogic and Apache, Clariion CX200.

Confidential

UNIX System Admin

Responsibilities:

  • Creating Jumpstart image for Solaris 9 and 10 and configuring new Linux servers and also installed solaris 10 using Flash Archive, updated clone system with a differential solaris flash Arcive.
  • Installed configured, managed the ACL's around the CVS, Subversion SVN repository and also responsible for back-up recovery of the repository.
  • Installation of OAS Oracle Application Server on Solaris 9 and its configuration with oracle database.
  • Involved in migrating from Solaris to Linux and windows to solaris and Linux servers.
  • Restore of Oracle instance and worked with Oracle team for Oracle installation and Building Oracle Cluster.
  • Created disk groups, volumes, volume groups and RAIDs using VERITAS Volume Manager.
  • Involved in the yearly maintenance patching for both SAN and NAS connected Linux servers and also Mounted NAS on Solaris.
  • Involved in monitoring Juniper Networks NetScreen Firewall devices, gathering configuration data and also tracked configuration changes for Juniper Networks NetScreen Firewall instances.
  • Raised alert sand violations based on thresholds set on monitoring and configuration data.
  • Setup optimal RAID levels fault tolerance for protected data storage in NAS environments. Install and configure DHCP, DNS BIND, MS , web Apache, IIS , mail SMTP IMAP and POP3 and file servers.
  • Created new slices, mounted new file systems and unmounted file systems.
  • Upgraded Solaris 9 to Solaris 10 and worked with Solaris zones/containers/LDOMS, Used Solaris Cluster to deploy two-node cluster.
  • Implemented anti-spam technology based on open source applications on Linux servers.
  • Created and Managed Meta devices using Solstice Disk suite and Volume Manager.
  • Configured backup/archive policies using Tivoli Storage Manager backup utility, and mksysb images of root volume group to meet data archiving requirements, and disaster recovery readiness.
  • Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
  • Involved in maintaining high availability clustering environment using HACMP Cluster software.
  • Configured and administered TCP/IP, LPAR/DLPAR, NFS and VIO servers and Worked with LDAP in order to resolve user management issues.
  • Implemented RBAC, Discretionary Access Control DAC , Mandatory Access Control MAC .
  • Developed scripts for automating administration tasks like customizing user environment, and performance monitoring and tuning with nfsstat, netstat, iostat, vmstat.
  • Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
  • Installed and deployed Weblogic and Websphere Application Servers WAS .
  • Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for Veritas Cluster with Netapp SAN.
  • Provided support for multi-path Fiber Channel storage systems, as well as Solaris servers configured with multiple Fiber Channel FC Host Bus Adapters HBA on a Storage Area Network SAN and Network Attached storage NAS as well.
  • Installed and configured domain wide mail systems utilizing Postfix with multi subnet and a single relay host for internal mail forwarding, all external mails were handled by Send mail and SMTP.

Environment: Sun Solaris 10/9, Windows NT 4.0,Websphere, Weblogic, Windows NT 4.0, VERITAS Volume Manager 5.0, VERITAS Net backup 6.5.x, VMWare ESX-3.5, Sun Enterprise 4500, Sun Enterprise 450/420R/250, Sun Ultra 250 with RAID, Pentium PCs, Oracle 10g, HACMP, SAN, NIM, NFS, VIO Servers.

Confidential

UNIX Consultant

Responsibilities:

  • Installation/Maintenance of Hardware/Software in Production, Development Test Environment as an integral part of the Solaris Support team
  • Support of Solaris 8/9/10 systems administration, operational support and problem resolution for server systems
  • 24x7 support for Solaris systems as on-call personnel to provide 99.5 efficiency with prompt response.
  • Work on Remedy Request system for resolving and closing user request tickets in co-ordination with other teams such as Engineering, Database, Application, Finance, Linux AIX groups.
  • Configured and installed Routers, Switches, and RAS equipment on a WAN and LAN level.
  • Supported Cisco Routers from High End 7500 series to 2500 series, catalyst 5000 and Connectrix Fiber Switches.
  • Developed Korn Scripts to automate the administrator's daily tasks.
  • Explore new technologies and design methodologies that enhance the efficiency of system administration support for my team. Provided maintenance of array created on SAN storage.
  • Installed and configured ATG Dynamo application server on sun servers.
  • Present project status, issues their resolution, and other key informations to team management.
  • Writing procedures and documenting processes independently and in a team environment.
  • Assisted Web Infrastructure Operations team with migration of Weblogic/Webmethods filesystems on LP/HVS boxes.
  • Performed DBA activities such as Oracle installation, database creation, maintenance and database backup and recovery on SUN hardware.
  • Migrated LP systems from Sun E10K to Sun Fire V890 systems. Migrated Sun Enterprise 220R to Sun Fire v240, Sun E450R to Sun Fire v480 systems
  • Coordinated to setup two SUN storage 3510 in SAN environment with SW 3850 Brocade switches to store VOB and View data. Coordinated for WWN and zone level filtering.
  • Respond to alarms generated by HP OVO on time and clear them on time.
  • Upgraded Solaris 8,9 systems to Solaris 10 systems with perfection using Live Upgrade / Fresh Jumpstart procedures.
  • TSM 5.3.3 upgrades for PROD, DEV TEST systems Veritas 4.1 upgrades for PROD/DEV/TEST systems.
  • Helped DBA team for faster application execution by creating processor sets and linking Sybase process to the processor set and configuring permanent links across reboots.
  • Designed a simple procedure to upload SUN explorer files .tar.gz to Sunsolve for individual sun-cases.
  • Installation of other useful related softwares such as Sysedge, ITA, Bindview, OpenSSH, HP Openview, BMC Patrol Best1, IBM Tivoli Storage Manager, IBM DB2 client, Tripwire etc.
  • Transferred dat TO and FROM SQL server using BCP.
  • Validate daily tape backups. Assist in the migration of the backup infrastructure from Legato Networker to Symantec Backup Exec.
  • Monitoring the server performance using Nagios.
  • Take approval and timeframe for de-commissioning old servers. Check with database and business groups for any business impact while de-commissioning servers.
  • Veritas Storage Foundation 5.0/4.0 and Installation on Solaris servers to configure and upgrade VxVM volume manager from 3.1/3.2 to 4.1/4.5

Environment: Data Center 24/7 production and mission critical environment site with over 250 servers which include Sun Solaris 10/9/8, Red Hat Linux 5/4/3, HP-UX, Windows NT, IIS Autosys, Oracle RAC, SQL server, VVM, VCS, Veritas NetBackup, JBOSS, Weblogic, WebSphere, iPlanet, Apache, BIG IP load balancer , SAN, NAS, DAS, Tivoli, BMC Patrol KM, HP OVO, Remedy, Nagios, MQ Series, Korn scripts, SSH etc.

Confidential

System Administrator

Responsibilities:

  • Installation of Sun E250, E450, Sun E3000, E6900, SunFire v440/v480/v490 with Solaris 8/9. Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
  • Configure Winbind on all Linux workstations which enables all the Linux users to be authenticated on Microsoft Windows 2000 Active Directory Server.
  • Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers' activity on a continuous basis.
  • Setup EMC HBA fiber cards and storage frames for Oracle and Sybase databases.
  • Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
  • Responsible for Day to Day Backup and Recovery using tar, using and ufsdump on Solaris 8 9.
  • Performed disk mirroring using SDS 4.1, 4.2 Solstice Disksuite .
  • Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
  • Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze.
  • Worked with SAN, NAS, in EMC and CLARiiON disks, their configuration and installation of power path.
  • Installed, configured CISCO routers switches and the Cisco IOS heartbeats for Oracle RAC.
  • Validate daily tape backups. Assist in the migration of the backup infrastructure from Legato Networker to Symantec Backup Exec.
  • User accounts management, developing korn shell scripts for various system performances monitoring purposes and troubleshooting.
  • Configuration and troubleshooting - LAN and TCP/IP issues, Weblogic.
  • Monitor bad user logins and unauthorized users, frequently changing the root password for security.

Environment: Sun Solaris 9/8,Linux, BEA Web Logic 8.1,Apache web server, Sun E250, E450, Sun E3000, SunFire v440/v480/v490/E6900, Sun Sparc 20/10/5,Legato networker, ORACLE 9, C, EMC CLARiiON, Solstice Disksuite, , Cisco switches routers, VLAN, Winbind

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