Ishwar Singh

About Ishwar Singh

In depth knowledge about Mainframe Storage Administration, managing around 100 TB of storage in my current profile. Designing policies for the placement and movement of data between various media, to maintain operation cost. • Experience in handling the DASD BOX Configuration and migrate the data to new BOX.• Removed and installed new TS7700 clusters and copy refreshed data from one cluster in grid to another• Though understanding about mirroring and backup environment, which can be accomplished, working with various tools, which helped in designing policies for the DR and the DR processes which are getting tested every quarter as an preparation test for system availability during actual disaster.• Experience with setting up fresh IBM storage boxes of DS8K series and implementing mirroring between sites.• Management of catalogs for the data availability. Keeping track of space availability on the system on daily basis and taking corrective action incase of low space and catering to user request for adding space. • Design and maintain the policies, so that all relevant data is available at sites, using replication and global mirroring. Frequently testing the availability of secondary site as primary site as a preparation of DR. Planning and implementing DR testing. • Make sure that backup’s jobs are scheduled and running in order to have system backups at time of failure. • Client deliverables such as a Service level agreements(SLA) for Mainframe.• Reorgs of catalogs and HSM control datasets for their continuous availability. • Experience in Incident, problem and change Management.• Monitoring of OAM exits and OAM Log.• Tracking DASD pools free space.• Maintenance of DFSMS CDS.• Products- DFSMS, DFHSM, ICFcatalog, Fileaid, Dcollect, ADRDSSU, ICKDSF, CA1 (TMS), Global mirroring, VTS7760, ISPF, SDSF, HCD, FDR, DS8K storage boxes.• Change Management Tool: ServiceNow.

Experience

1. Mainframe Storage

   Tata Consultancy Services

   Aug 2021 — Present · Gurugram, IN

   Design, implement and manage dasd and tape subsystems.Manage Hardware and Software related software.Remotely supporting U.K client in 24*7 environments and managing their 100 TB of Mainframe Storage. Monitor Space utilization and pool threshold. Design and implemented pool environments. Support customer concerning storage problems and needs.It’s a two clusters site, one primary and one secondary. Maintain replication b/w primary and secondary.Selected to train new and less experienced storage administrators.Create and Schedule backup jobs to have client data copy.Client deliverables such as a Service level agreement (SLA) for Mainframe.Reorgs of Catalogs and HSM control datasets for their continuous availability. Maintenance of DFSMS CDS and RMM CDS.Experience in Incidents, Problem Record and Change Management.Monitoring of OAM, RMM, ATP tool

Education

• Rajasthan Institute of Engineering & Technology,Jaipur

  Master of Computer Applications - MCA, Computer Software Engineering

  2010 — 2013