The UNIX® System Services element of z/OS® is tightly integrated into the operating system. You get the best of both worlds: UNIX and z/OS. UNIX System Services is a key element of our open and distributed computing strategy.
Fast facts about z/OS UNIX
- It is a certified UNIX system and an integral element of z/OS.
- WebSphere® Application Server, CICS®, IMSTM, JavaTM Runtime, Tuxedo, DB2®, WebSphere MQ, SAP R/3, Lotus Domino, and Oracle Web Server all use z/OS UNIX.
- z/OS UNIX applications can communicate with DB2®, CICS, IMS, and WebSphere MQ.
- z/OS UNIX is built for the enterprise where you can prioritize workloads for high performance when running with a mixed workload.
- There is a broad range of ISV applications ported to z/OS UNIX.
- z/OS UNIX has a hierarchical file system familiar to UNIX users.
- Applications can work with data in both the z/OS UNIX file systems and traditional MVSTM data sets. MVS programs can access UNIX files, and UNIX programs can access MVS data sets.
- The SMB File and Print Server enables a distributed file sharing infrastructure for z/OS UNIX files and Windows® workstations.
- Users can choose which interface they want to use: the standard shell, 3270, or the ISPF interfaces.
Advantages of z/OS UNIX
- z/OS applications can take advantage of all the enterprise services
- Workload Manager to manage the allocation of physical resources to maximize system responsiveness.
- High performance of database access
- Access to the two-phase commit protocol provided by Resource Recovery Services (RRS)
- Access to advanced security features of RACF®
- Enterprise-class applications and middleware
- Extensive support in the marketplace
z/OS UNIX and traditional UNIX
| z/OS UNIX system |
Traditional UNIX system |
- Manage and secure system resources from a single point.
- Consistently runs near 100% utilization.
- WLM gives UNIX applications extra resources to manage tasks.
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- Manage and secure each system's resources individually.
- A dedicated UNIX system usually runs at about 50-70% utilization.
- Without any job management, traditional UNIX systems can become disabled.
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Learn more about z/OS UNIX
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