Mainframe Storage Administrator
2 weeks ago
About the Role
This is a
pure hands-on L3 Mainframe Storage Administrator role
(not a team lead position).
You'll manage BAU operations, major incidents, DR activities, performance tuning, and large-scale storage/OS upgrades across multi-vendor mainframe storage hardware.
Key Responsibilities
- Deliver BAU support for Mainframe OS/Storage, including MI/P1 incident management
- Work daily with client-side OS and storage SMEs
- Perform RCA, problem tickets, and weekend change activities
- Support OS upgrades, hardware refresh, ISV upgrades, and capacity planning
- Manage DASD pools, performance, backups, and catalog administration
- Handle data migration, volume initialization, placement, and space forecasting
- Ensure 99.99% system availability and adherence to SLAs
- Manage virtual tape libraries and multi-site storage replication
- Participate in hardware lifecycle management and DR drills
Must-Have Qualifications
- 10+ years
hands-on Mainframe z/OS & Storage Administration (L3) - Deep experience with DASD management, cataloging, storage pooling & backups
- Strong knowledge of z14/z15/z16 hardware and Sysplex
- Expertise with z/OS 2.x, JES2, DFSMS, RMF/SMF, VTAM, RACF/ACF2
- Proficiency with IODF/IOCDS, HCD/HCM, PARMLIB/PROCLIB, IPL/POR
- Hands-on with Hitachi VSP5500, IBM DS8000, EMC VMAX/PowerMax & DLm
- Experience with replication technologies: IBM Metro/Global Mirror, SRDF, GDDR
- Automation and scripting: REXX, JCL, Assembler, CA-OPS/MVS
- Disaster Recovery setup + DR drill execution
- BAU + on-call support readiness
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