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Administrative Tasks
1-12 System Tasks 600716 Rev A
When the checkpoint script runs, it tars the entire contents of
the FileServ database to a separate file system. After this
process is completed, it zeros out the journal file. If the
journaling file system becomes full, processing stops.
Therefore, it is important to checkpoint the database regularly
through a
cron process.
Checkpointing can be written to the host computer disk or table,
but these files must not be placed under FileServ’s control.
checkDBALL The
$FS_HOME/util/checkDBALL script checks the
database consistency by validating the position of each record
occurrence and checking the integrity of deleted chains. The
consistency check verifies that the member and owner record
types are valid, the membership count is current, and the
doubley linked lists are properly formed.
The script also validates the existence of the key values
associated with each record and the key field in the data files.
For each key in the key file, the script reads the associated
record and checks to ensure that the key’s data field contents
match that stored in the key file. Finally, the checkDBALL
script performs a timestamp consistency check on the database.
The
checkDBALL database script should always be run after a
host platform crash because FileServ may have been
performing a database transaction when the crash occurred.