Job Title or Location

Mainframe Storage Administrator

Dacaro Services - 4 Jobs
Toronto, ON
Posted today
Job Details:
Remote
Full-time
Management

Job Summary:

We are seeking a skilled Mainframe Storage Administrator with proven experience in enterprise storage management, specifically supporting IBM Z mainframe environments. The ideal candidate will have deep knowledge of inter-site replication using GDPS (Geographically Dispersed Parallel Sysplex) and Copy Services Manager (CSM). You will play a key role in ensuring high availability, disaster recovery readiness, and performance optimization of mainframe storage systems across multiple data centers.

Key Responsibilities:

  • Administer and support enterprise mainframe storage systems (IBM DS8000 series or equivalent).
  • Manage and maintain GDPS-based inter-site replication to ensure data integrity and seamless disaster recovery capabilities.
  • Configure and manage IBM Copy Services Manager (CSM) for advanced storage automation, remote mirroring, and consistency group operations.
  • Perform day-to-day storage operations, including provisioning, allocation, troubleshooting, and performance tuning.
  • Collaborate with z/OS Systems Programmers, DBAs, and Application Teams to support complex system upgrades, migrations, and deployments.
  • Monitor and report on storage usage and trends to ensure optimal capacity planning and resource utilization.
  • Participate in business continuity and disaster recovery testing, audits, and compliance activities.
  • Document storage configurations, procedures, and operational runbooks in accordance with organizational standards.

Required Qualifications:

  • 7+ years of experience in mainframe storage administration.
  • Strong hands-on experience with GDPS (HyperSwap, Metro Mirror, Global Mirror, XRC) in a production environment.
  • Expertise with IBM Copy Services Manager (CSM) for managing data replication and consistency across storage systems.
  • In-depth knowledge of IBM DS8000, FICON, z/OS, and associated storage management tools (DFSMS, TSO/ISPF, etc.).
  • Experience in planning and executing Disaster Recovery (DR) scenarios involving replication technologies.
  • Familiarity with performance monitoring tools (OMEGAMON, RMF, etc.) and storage-related SMF records.
  • Strong analytical and troubleshooting skills.

Preferred Qualifications:

  • Working knowledge of z/VM, zLinux, or z/OSMF.
  • Experience with automation scripting (REXX, JCL, or similar).
  • Previous experience in regulated industries (e.g., banking, insurance, government).
  • IBM or vendor-specific certifications in mainframe storage or GDPS technologies.

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