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## 7.3.1 Backup and recovery on zCX instance level 

The instance-level backup is a very convenient way to back up and recover a full zCX instance with all containers that run inside it. It is especially suitable to handle a zCX instance that matches one of these descriptions: 

GLYPH<SM590000> Only one container runs in it. OR 

GLYPH<SM590000> All containers that run in it belong to a single application. 

## Data belonging to a zCX instance 

All data that makes up a zCX instance lives within the VSAM linear data sets that have been defined by the provisioning or the add-volume workflows. These VSAM linear data sets are the ones whose name starts with the high-level qualifier for this zCX. This qualifier is set during the provisioning workflow. Example 7-20 shows a list of these data sets. 

DSLIST - Data Sets Matching ZCX.REDB.ZCXVL01 Command ===> Command - Enter "/" to select action ------------------------------------------------------ ZCX.REDB.ZCXVL01.CONF ZCX.REDB.ZCXVL01.CONF.DATA ZCX.REDB.ZCXVL01.DATA1 ZCX.REDB.ZCXVL01.DATA1.DATA ZCX.REDB.ZCXVL01.DLOG1 ZCX.REDB.ZCXVL01.DLOG1.DATA ZCX.REDB.ZCXVL01.ROOT ZCX.REDB.ZCXVL01.ROOT.DATA ZCX.REDB.ZCXVL01.SWAP1 ZCX.REDB.ZCXVL01.SWAP1.DATA ZCX.REDB.ZCXVL01.ZFS ZCX.REDB.ZCXVL01.ZFS.DATA ***************************** End of Data Set list 

In addition, the zCX instance must know the directory locations of the following components: 

GLYPH<SM590000> The UNIX file system where the start.json  for this instance is stored. 

GLYPH<SM590000> The properties file of the instance. 

Except for the start.json  file that is needed for the start of zCX, these files are not used at run time but rather for the z/OSMF workflows to maintain the zCX instance. Example 7-21 shows a list of these files. 

Pathname . : /global/zcx/instances/ZCXVL01 EUID . . . : 311 Command Filename ------------------------------------------- . .. config 

