Processing

The ZONEIMPORT command loads an exported zone into a specified distribution, target, or global zone.

Before importing the zone, SMP/E checks that the correct parameters were entered and that the import request is valid. If any of the checks fail, SMP/E issues an error message, and the ZONEIMPORT command fails. SMP/E checks that:

The zone name on the SET BOUNDARY command matches the receiving zone name.
Either the zone types of the exported and receiving zones match, or a distribution zone is being loaded into a target zone.
The receiving zone does not already exist in the CSI data set.
If the receiving zone is a global zone, no other zone is defined in the CSI.
No cross-zone subentry from the input zone refers to a zone with the same name as the receiving zone.

If all the validity checking is successful, the zone can be imported. SMP/E opens the input data set, reads the zone definition record, and checks its validity. SMP/E opens the receiving zone for update processing. If a target or distribution zone is being imported and its zone name does not match the name of the receiving zone, SMP/E renames the zone being imported.

SMP/E checks for these situations:

If the imported zone contains cross-zone subentries, SMP/E issues warning messages.
If SMP/E cannot open the input data set or the receiving zone, it issues an error message, and the ZONEIMPORT command fails.
If the zone name or type was changed, SMP/E updates the zone definition record. If the receiving zone is not the global zone, SMP/E writes this record to the receiving zone. SMP/E then reads the rest of the records from the input data set and writes them to the receiving zone using sequential reads and writes. When it reaches the record containing hex FFFF, SMP/E has finished importing the zone. It does not write this record to the receiving zone.
If SMP/E reaches the end of the file before reading the hex FFFF record, it issues an error message and the ZONEIMPORT command fails.
If you specified the OPTIONS or RELATED operand, SMP/E either writes the new entries to the receiving zone, if none already exist, or replaces the existing entries with the new ones and writes the new entries to the receiving zone.

SMP/E then closes the input data set and the receiving zone.