TMF Reference Manual (G06.24+)
TMFCOM Command Reference Summary
HP NonStop TMF Reference Manual—522418-002
B-9
ALTER AUDITTRAIL
Caution. Before you decrease the size of an audit trail, determine whether such a change 
might interrupt transaction processing. TMF does not alert you to the possibility that the audit 
trail could exceed its begin-transaction-disable threshold when you issue an ALTER 
AUDITTRAIL command to decrease the files per active volume or delete an active volume 
from the configuration.
If the audit trail exceeds its begin-transaction-disable threshold, new transactions cannot start.  
In this case, transaction processing is suspended until audit trail capacity drops below the 
threshold.
If the overflow threshold is exceeded as a result of reduced audit trail capacity, the first pinned 
audit trail is copied to the overflow volume.
Be careful not to lower the begin-transaction-disable or overflow threshold below your TMF 
system’s current capacity levels; they will engage precisely in accordance with your request.










