zCX registry and zCX instance directories
zCX registry
The zCX registry is a z/OS Unix System Services file system directory that stores information on all provisioned zCX instances. When a new zCX instance is provisioned, a unique zCX instance directory will be created inside the zCX registry. The zCX registry path must be defined by a system administrator on a sysplex-aware file system as part of the installation and configuration of z/OS Container Extensions. A system administrator also has the option to mount a sysplex-aware zFS.
/global/zcx_zos/instances. You can create the zCX registry using
mkdir command in z/OS UNIX System Services. For
example:mkdir -p /global/zcx_zos/instancesThe zCX registry is represented by the z/OSMF workflow variable ZCX_REGISTRY_DIR.
zCX instance directories
Each new zCX instance generates a zCX instance directory inside the zCX registry. A new zFS is allocated and mounted within each unique zCX instance directory. Each zCX instance directory holds instance-specific configuration information used to define and start the zCX instance, including the generated JSON file needed to start the instance as a task. A zCX instance directory also holds any first failure data capture (FFDC) information collected during runtime. The information in a zCX instance directory is used for backup configuration, reconfiguration, restore configuration, upgrade, rollback, and deprovisioning of a zCX instance. The zFS in a zCX instance directory is unmounted and deleted during deprovisioning.