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The following FairCom DB configuration option enables VSS writer diagnostic logging (this can be enabled dynamically on the fly with server administrator utilities):
DIAGNOSTICS VSS_WRITER
When enabled, the VSS writer logs diagnostic messages to CTSTATUS.FCS. These messages indicate the sequence of operations to which the VSS writer is responding. Some examples are shown below:
Tue Sep 14 15:44:05 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnIdentify called
Tue Sep 14 15:44:07 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnPrepareBackup called
Tue Sep 14 15:44:07 2010
- User# 00016 VSS Diag: [0x1098] (+) Component: CtreeACE
Tue Sep 14 15:44:07 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnPrepareSnapshot called
Tue Sep 14 15:44:07 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnFreeze called
Tue Sep 14 15:44:07 2010
- User# 00016 VSS Diag: [0x1098] QuietCtree(ctQTblockALL | ctQTflushAllFiles)...
Tue Sep 14 15:44:08 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnThaw called
Tue Sep 14 15:44:08 2010
- User# 00016 VSS Diag: [0x1098] QuietCtree(ctQTunblockALL)...
Tue Sep 14 15:44:08 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnPostSnapshot called
Tue Sep 14 15:44:10 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnIdentify called
Tue Sep 14 15:44:25 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnIdentify called
Tue Sep 14 15:44:26 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnBackupComplete called
Tue Sep 14 15:44:26 2010
- User# 00016 VSS Diag: [0x1098] c-treeACEVSSWriter::OnBackupShutdown called
Note: The VSS writer always logs error messages to the Windows event log, even if the DIAGNOSTICS VSS_WRITER option is not specified in the configuration file.
