Swapping, deleting, and saving journals and receivers

 

The management tasks that you need to perform most often for journaling are swapping journal receivers and saving and deleting journal receivers.

• Swapping journal receivers
  An important task for journal management is to swap journal receivers. You typically swap journal receivers when they reach their storage threshold. You can swap journal receivers either with iSeries™ Navigator or with the Change Journal (CHGJRN) command. If you use system journal-receiver management, the system changes journal receivers for you.

• Journal receiver chains
  Journal receivers that are associated with a journal (that is presently or previously attached to the journal) are linked in one or more receiver chains. Each journal receiver, except the first one, has a previous receiver that was detached when the current receiver was attached. Each journal receiver, except the one that is currently attached, also has a next receiver.

• Resetting the sequence number of journal entries
  Normally, when you change journal receivers, you continue the sequence number of journal entries. When the sequence number becomes very large, consider resetting the sequence to start the numbering at 1. You can reset the sequence number only when all changes are forced to auxiliary storage for all journaled objects and commitment control is not active for the journal. Resetting the sequence number has no effect on how the new journal receiver is named.

• Deleting journal receivers
  Journal receivers can quickly use a lot of auxiliary storage space. Therefore an important journal management task is to delete journal receivers after you no longer need them.

• Deleting journals
  Each journal on the system causes additional time and resource to be used when you restart the system or vary on an independent disk pool after an abnormal end. If you no longer need a journal, you can delete it.

• Saving journals and journal receivers
  You must save the journal receivers when they are no longer attached, so that you have all the journal entries saved.

 

Parent topic:

Managing journals