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Progull Research · 2026

The State of Mainframe Operations.

What 41 operations leaders running production z/OS batch told us about MTTR, on-call load, autonomy adoption and the gap between LLM pilots and real remediation.

Eight benchmarks

The numbers, with the caveats attached.

47 min
Median MTTR across recurring abends
P90 reaches 3h 14m
5.1%
Of monthly batch jobs incur an abend
Tier-1 BFSI band: 3.8% – 6.7%
73%
Of abend resolution effort sits with under 5 SMEs
Concentration risk reported by 81% of respondents
2.4x
Growth in night-call load over 3 years
Despite flat batch volume
31%
Of abends are repeats of a prior 30-day incident
Auto-resolution leverage point
11 min
Average ticket-creation lag from JES event to ServiceNow
Down from 22 min in 2024 — closing slowly
62%
Of teams have an LLM in their toolchain
Only 9% have policy-as-code remediation
$14.3K
Direct cost of an avoided on-call escalation
Excludes SLA penalties and reputational drag
Methodology

How the data was collected.

Respondent profile

41 operations leaders across BFSI (19), insurance (8), airlines & travel (6), public sector (5), and industrial conglomerates (3). Median fleet: 7 LPARs, 14,200 monthly batch jobs.

Period

Q1 2026 fielding window. Incident metrics aggregated over the trailing 90 days at the time of response, normalized per LPAR.

Instrument

37-question structured interview plus telemetry export where customers consented (28/41). Telemetry validated against self-reported metrics within ±8%.

What's excluded

Greenfield modernization workloads, IMS-only shops, and air-gapped national-security workloads. These represent material populations and will appear in the 2026 H2 supplement.

What we'll explore in the full report

Three reading paths.

For the…
Operations leader

Where the 73% SME concentration risk shows up first, and which abend families respond to autonomy fastest.

For the…
CISO

How teams are gating LLM-driven action, the policy-as-code gap, and what the 9% who got it right are doing differently.

For the…
CFO / procurement

The economic model: $14.3K per avoided escalation, sandbox vs enterprise pricing, and a 3-year TCO frame.

Request the full 46-page report.

PDF with sector cuts, all source charts, anonymized interview excerpts, and the response instrument. Distributed under the Progull research NDA.