Saving Multiple Libraries

Robot Save lets you save multiple libraries with a single SAVLIB or SAVCHGOBJ command. This option can increase the performance of your backups by placing up to 300 libraries on each SAVLIB or SAVCHGOBJ command.

A field on the Backup Set Information panel allows you to specify if you want to allow multiple library saves. The field is set to Y (Yes) automatically for all new backup sets except for certain types of backup sets, such as object lists.

Note: If you’ve specified a value of No in the Continue with next library if save fails field on the System Defaults panel, this field is set to No.

How Multiple Library Saves Work

Backup sets that specify multiple library saves process libraries in sequence number order by library name. You specify the sequence number for each library when you select the libraries to be saved by the backup set. For example, you might want to specify that the largest libraries are saved first by entering a lower sequence number.

A multiple library save attempts to save all the libraries in the backup set using as few SAVLIB or SAVCHGOBJ commands as possible. Libraries are processed in increments of 300 (this is the current IBM maximum). If a backup set contains more than 300 libraries, additional commands are issued for the remaining libraries.

If you have specified that files be reorganized on the Extended Backup Set Information panel, this process is done as a group before the libraries are saved.

Restrictions

Multiple library saves are not supported for the following:

  • Libraries that have a before- or after-backup program specified. These libraries will be saved using a separate SAVLIB or SAVCHGOBJ command.

  • Libraries that are saved to a save file. Save file processing does not allow multiple libraries to be placed in a single save file. Libraries being saved to a save file are processed before libraries included in a multiple library save.

  • Data set processing.

  • Domino online backup.

You also should be aware of the following when setting up multiple library saves:

  • Multiple library saves are valid only for user-defined-type saves (backup set type 1).

  • Undefined libraries are added to the backup set at run time, following the criteria you’ve specified on the System Defaults panel, and the Extended Backup Set Information panel in the Add undefined libraries field.

  • If you have specified save while active processing for some libraries, using multiple library saves could result in several save commands being issued instead of just one. Robot Save groups the libraries based on the save while active code used.