IBM Z
Reviews
Star rating
Rank in Servers
Pros and cons
Pros
Cons
Traffic & LLM citations
Source: G2 review data
Winning from
Key stats
Adoption by company size
| Segment | Share of reviews |
|---|---|
| Small Business | 8.3% |
| Mid-Market | 16.7% |
| Enterprise | 75.0% |
Quarterly history
| Quarter | Reviews | Star rating |
|---|---|---|
| 2024 Q4 | 1 | 5.0 |
| 2025 Q2 | 1 | 5.0 |
| 2025 Q3 | 4 | 4.8 |
| 2025 Q4 | 3 | 5.0 |
Satisfaction ratings
What reviewers say
IBM Master Machine Z - Unmatched Performance and Reliability with Zero Downtime
“Performance, Realiability, security, scalability, energy efficiency and ability to provide fault tolerant platform with zero down time.”
System z Administrator with 17 years of experience in enterprise IT infrastructure
“IBM Z is unmatched in its reliability, scalability, and security. As an administrator, I’ve seen how its processing power effortlessly supports high-volume, mission-critical workloads while ensuring near-zero downtime. Its resilience gives both IT teams and business stakeholders ”
Muito Satisfeito
“A estabilidade e a segurança são incomparáveis. A capacidade de processar um volume gigantesco de transações de forma consistente e com altíssimo desempenho é o principal diferencial. A robustez do hardware e do sistema operacional z/OS nos dá a tranquilidade de que nossas aplica”