zCX instance swap data storage

Swap data linear VSAM data sets are allocated to use as swap space for a zCX instance. Swap data volumes allow zCX to support Docker containers when the virtual memory in use exceeds the real memory available to the zCX instance. The number and size (in megabytes) of each swap VSAM data set must be specified. At least one swap data linear VSAM data set must be allocated for swap space use. Additional swap data sets can be added to a zCX instance after provisioning by using the add data disks workflow. Allocated swap data sets cannot be removed from a zCX instance without deprovisioning.

Table 1. z/OSMF workflow variables for swap data.
Variable	Description	Required?	Default (if applicable)
`ZCX_SWAPMB`	This is the swap data VSAM data set allocation size (in megabytes) for each VSAM data set allocation. The minimum size required for swap space use is 1000 MB. The number of swap data VSAM data sets is specified by `ZCX_SWAP_COUNT` The recommended Swap data size is greater than the maximum amount of virtual memory that will be used by the containers deployed in the zCX instance, minus the zCX instance memory specification (`ZCX_MEMGB`). For example, if the zCX instance requires 10 GB of virtual memory and is configured with 4 GB of real memory, then at least 6 GB of swap space is required.	Yes	2000 MB
`ZCX_CREATE_SWAP`	This indicates whether a swap data volume is created for the zCX instance. When set to `TRUE`, swap data linear VSAM data sets are allocated to use as swap space.	Yes
`ZCX_SWAP_COUNT`	Specify the number of swap data VSAM data sets to allocate for the zCX instance. Each swap data VSAM data set is allocated according to the size specified by `ZCX_SWAPMB`. At least one swap data linear VSAM dataset must be allocated. The maximum number of swap data sets that can be specified at a time is 5. You can add up to 245 total swap and data disks per zCX instance.		1
`ZCX_SWAPSTORCLAS`	This is the swap data VSAM data sets STORCLAS to use for the SMS managed storage swap data allocation.	Yes, if allocating a swap data VSAM data set greater than 4 GB that needs extended addressability and SMS managed storage specification. SMS managed storage specification may be required for VSAM data set allocation depending on site installation requirements. Check with the storage administrator to obtain the STORCLAS specification.
`ZCX_SWAPDATACLAS`	This is the swap data VSAM data set DATACLAS for swap data allocation.	Yes, if allocating a swap data VSAM data set greater than 4 GB that needs extended addressability specification. Extended addressability specification may be required for VSAM data set allocation depending on site installation requirements. Check with the storage administrator to obtain the DATACLAS specification.
`ZCX_SWAPMGMTCLAS`	This is the swap data VSAM data set MGMTCLAS for SMS managed storage swap data allocation.	SMS managed storage specification may be required for VSAM data set allocation depending on site installation requirements. Check with the storage administrator to obtain the MGMTCLAS specification.