Note: On systems prior to V4R2, the size of access paths for logical files is changed by deleting and recreating the logical file. 16.15 Journaling of Access Paths An access path can be considered a definition of the order in which records in a database file are processed. A file can have multiple access paths. Journal management can help keep a record of changes to access paths. This reduces the amount of time it takes the system to perform an IPL after an abnormal end. If your system abnormally terminates when access paths are in use, the system may have to rebuild the access paths before the files can be used again. This is a very time consuming process that can take many hours on a large, busy AS/400 system. Two methods of access path protection are: 1. SMAPP (System Managed Access Path Protection) 2. Explicit journaling of access paths Use SMAPP so the system can decide which access paths to protect, based on an overall target recovery time for access paths. Or, use explicit journaling for the specific access paths used for your most critical business applications. SMAPP is further described in Chapter 4, "IPL Improvements for Availability" on page 33. Note: You can use both SMAPP and explicit journals on the same system. For example, use SMAPP for interactive work during the day while files are being