NetBase for MPE Reference Guide

NetBase Shadowing
5-19
In the previous display, the column SYN indicates whether or not the file is in sync. If there is an S
in the column, that indicates a sync error. The column QUE indicates whether or not the
transactions for a particular file are in a queue state. If a Q is present in this column, the posting
process is writing all the transactions for that particular file into Post Queues for later recovery.
Turn to Appendix B “Troubleshooting NetBase” for information on recovering files in a queue
state. The last column, DIS, indicates that the file is in a discard state. If this flag is set, NetBase is
discarding all transactions for that file.
Shadow File States
The following table lists the four states that a shadow file can be in.
State Description
In sync (---)
The master and shadow copy match. NetBase has not detected any
errors.
Queuing (Q)
The posting process detected a non-fatal error when it tried to open the
shadow copy. Updates for this file are being saved in a post queue and
can be recovered.
Out of sync (S)
The posting process, NBPOST, has detected a sync error between the
master and shadow copy. If this is an IMAGE database, the posting
process will be discarding the transactions for the dataset that received
the sync error and will continue posting the datasets that are in sync.
For non-IMAGE files, all transactions for the file will be discarded.
Discarding (D)
NetBase has detected an error that is causing the posting process to
discard all transactions for the shadowed file. If this is an IMAGE
database, all transactions for all datasets are being discarded.