Virtual image copy process

The virtual image copy process does not create physical image copies but registers identifiable information (UIC records) for the primary and secondary index databases to DBRC. The use of the virtual image copy process is beneficial when you want to run HASH check for an index database data set without creating image copies.

UIC records, which contain the time stamp of the process, are registered to DBRC through the NOTIFY.UIC commands that IMS HP Image Copy issues.

You can request this feature by specifying the VIC keyword.

Notes:
  • The virtual image copy process is not supported for the primary index database of PHIDAM.
  • The virtual image copy process does not create physical image copies, therefore, you cannot create image copies for database recovery with this process. Consider using other means, such as rebuilding IMS Index Builder, when you recover databases.
  • If you do not request HASH check for index databases, you can specify BYPDBAUTH=Y to bypass DBRC database authorization for index databases. In this case, IMS HP Image Copy does not allocate or obtain authorization of the index database data sets.