# zOS

LLMS index: [llms.txt](/llms.txt)

---

## zOS Software

**Status:** ![Development](https://img.shields.io/badge/-development-blue)

**type:** `zos.software`

**Description:** A software resource running on a z/OS system.

> [!warning]
> This entity definition contains attributes without a role.
> Stable Entities MUST NOT have attributes without a defined role.

**Attributes:**

| Role | Key | Stability | [Requirement Level](/docs/specs/semconv/general/attribute-requirement-level/) | Value Type | Description | Example Values |
| --- | --- | --- | --- | --- | --- | --- |
| Other | [`zos.smf.id`](/docs/specs/semconv/registry/attributes/zos.md) | ![Development](https://img.shields.io/badge/-development-blue) | `Required` | string | The System Management Facility (SMF) Identifier uniquely identified a z/OS system within a SYSPLEX or mainframe environment and is used for system and performance analysis. | `SYS1` |
| Other | [`zos.sysplex.name`](/docs/specs/semconv/registry/attributes/zos.md) | ![Development](https://img.shields.io/badge/-development-blue) | `Required` | string | The name of the SYSPLEX to which the z/OS system belongs too. | `SYSPLEX1` |
| Other | [`mainframe.lpar.name`](/docs/specs/semconv/registry/attributes/mainframe.md) | ![Development](https://img.shields.io/badge/-development-blue) | `Recommended` | string | Name of the logical partition that hosts a systems with a mainframe operating system. | `LPAR01` |