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Manager Maintenance

United States
October 19, 2018

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Priyanka Sagar

Contact: 201-***-****


Qualification Summary:

Over 7 years of experience in the field of technology industry as Systems Administrator/Consultant

Administration and 24x7 support of RedHat Enterprise Linux Servers v7/6/5 and AIX 5L v7.1/6.1/5.3

Extensive expertise in RedHat Enterprise Linux Server v7/6/5, VMware, vSephere.

Experience in Linux and AIX including File Systems, Processes, Performance tuning and troubleshooting

Strong experience in creation of VIO Server/Client, LPAR/DLPAR, Micro-Partitioning and installation of AIX through NIM Server and Managing Partitions using HMC. VIO Server v1.3/2.1/2.2, Hardware Management Console, IVM and its associated tools.

Strong experience in system recovery using mksysb image using NIM server and Disaster Recovery.

Experience with LVM (Logical Volume Manager), Mirroring (RAID1), job scheduling, paging space management and user and system resource management.

Good experience in cloud servers like pureflex, softlayer and bluemix.

Experience in PowerVM of all virtualization services like Shared Ethernet Adapter (SEA),VLAN, VLAN tagging, NPIV (N_port ID virtualization) configuration, virtual SCSI services to multiple VIO servers/client partitions.

Experience in installation of the optional software, and application of updates to bring the system to the latest maintenance level.

Experience working in PowerHA/HACMP v6.1/5.5/5.4/5.3, environment including planning and installation of clustered environment, creating Resource group, configuration and support.

Extensive experience in network management TCP/IP, NIS, DNS, NFS and VLAN.

Detect problems in early development stage, utilizing effective troubleshooting skills.

Experience in Troubleshooting TSM client backup.

Working experience in Opening Problem/Change management ticket.

Experience in interfacing of external devices like storage, Networking and backup devices.

Diagnosing Hardware problem, System access problem, Network problem, Performance problem and resolving them.

Followed step by step boot process of system.

Skilled in solving complex technical problems through research and technical detective work.

Excellent user interaction and good communication and interpersonal skills.

Technical Skills:

Operating Systems: AIX 7.1, 6.1, 5.3 RedHat Enterprise Linux server V7/6/5, Windows


Hardware : IBM pSeries, p8, p7, p6, p5, Dell, HP

Tools : HMC, VIO, LPAR/DLPAR, VMWare, vSphere, iTerm, VirtualBox,

Applications : Tivoli Storage Manager, Microsoft Office, Word, Excel, PowerPoint

Education : Masters in Engineering

Professional Experience:

Septmber 2012 to current client: IBM

Role: Sr. UNIX System Administrator, Account Focal St. Loius, MO

Project details: As a member of this team and being account focal for multiple accounts my responsibilities are to patch, update and upgrade more than 150 AIX and RedHat Linux servers on time to time bases, work on internal and customer projects and build new VIO Servers and VIO client/LPARS, Planning/Implementing and suggesting future requirements and capacity upgrade.


I have built more than 100 AIX LPARs and some VIO and NIM servers. I’m responsible for managing AIX and Cloud RH servers. Also responsible to manage overall 1000 + servers.

Responsible for installation, configuration, upgrade, troubleshooting and maintenance of RedHat Enterprise Linux Server v7/6/5 and AIX 5.3/6.1/7.1 and VIOC, RHEL v4/v5/v6/v7. VIOS 1.3/2.1/ and VIOS/Systems Firmware upgrade on pSeries systems.

Expertise to handle tasks in Red Hat Linux includes upgrading RPMS using YUM, kernel, HBA Driver, configure SAN Disks, muktipathing and LVM file systems.

Worked on multiple internal projects like sudo, chef/bigfix patching, lssecfixes, etc.

Good at for loop and while loop in shell scripting

Configuring and administration of NFS server and NFS client.

Managed server on VMware vsphere, and Configure Linux guests in a VMware ESX environment.

Install, upgrade & configuration of TIVOLI STORAGE MANAGER (Server, Client and storage agents) running on multiple platforms on AIX and Linux.

Work with IBM HW support for installation and replacement of HW parts

Update of system firmware/HMC version, adapter and disk macrocodes.

Provided 24x7 on-call support on a weekly rotation basis.

TCP/IP Configuration Assigning IP’s, Gateways, Nameservers, netmasks, hostnames, domain Names etc for individual machines and setting up the network.

Perform OS Upgrade and Patch Installation on day to day basis.

Configured HMC and connected P550 to HMC and build the TSM Server.

Configured Network on Red Hat Linux servers.

Working on Special VIOS SAN Cleanup project on about 58 Storage VIO servers.

Mapping the Virtual scsi drives between VIO server and clients and Creating Shared Ethernet Adapter (SEA) on VIO server for different VLANs.

Worked on migration project from fixed LPARs to the VIO client.

Configuring and administration of weekly mksysb backup on AIX servers.

Installing and configuring tools like Tivoli ITM monitoring, sudo. TSM, SRM etc.

Experience in working on Macbook pro.

Provided 24x7 on-call support on a weekly rotation basis and performing weekend changes during tech window.

Provide 24x7 on-call support for Data Center.

Responsible for resolving complex problem tickets.

Experience on many ticketing systems including Service Now, Remedy, TSRM, IPC

February 2012 to September 2012 client: Mercedes Benz

Role: UNIX Systems Admin Montvale, NJ

Upgraded AIX servers from version 5.3 TL level to AIX 5.3 TL 11 SP 02.

Upgraded AIX servers from version AIX 5.3 level to AIX 6.1.

Responsible for installation, configuration, troubleshooting and maintenance and of AIX 5.2/5.3/6.1 server.

Managing System Resources like File System, Disk space, Volume Groups, Logical Volumes and Physical Volumes.

Pager duty for 24x7 level 3 production support after hours and weekends, on rotation

Installation and configuration of NIM master server and clients.

Applied Security Fixes, APARs and Upgraded Maintenance Level

Handling the daily Incremental and weekly Full Backups of the Root volume group and Non- root volume group data and information both manually and via Cron.

Daily monitoring of system including security, performance, backup, errors, warning and jobs

Creating and supporting user accounts and file systems.

Documenting all the procedures

Managed file permissions & ownership for important directories & files.

Configuring and administration of weekly mksysb backup on AIX servers.

Installing IBM maintenance patches, software updating and installation.

Upgraded TSM Client to latest version.

Checking error logs and investigating the logs and providing a solution to the application team.

June 2011 to February 2012 Client : Sanofi aventis

Role: Junior Systems Admin Bridgewater, NJ


Managing System Resources like File System, Disk space, Volume Groups.

Creation of LPAR/DLPAR, micro-partitioning and installation of AIX in IBM pSeries Hardware p5 and p4 servers including p570/p520/p590/p55A, p690/p670 series model through HMC and p570 series of servers for virtualization.

Troubleshooting and problem resolution with file system corruption, user login problem and handling the system performance tuning and management.

Installation and maintenance of AIX 5.2 and 5.3 on pSeries p4 and p5 system through NIM.

Presented proper documents on Excel, PowerPoint and Word for documentation and reporting.

Regular participation in planned weekend work for the implementation of changes, e.g. servers OS upgrades, server installations, Memory upgrade etc.

Ensured audit accountability for each and every user in production environment.

Daily monitoring of system including security, performance, backup, errors, warnings and jobs.

PTF (Program Temporary Fix) installation and management, Disk subsystem configuration, File system and logical volume planning and configuration.

References : Available upon request.

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