HP Integrity NonStop J-Series - Manual (Page 51)

One-time Synchronization
HP AutoSYNC User’s Guide—522580-017
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Excluding Specific Files
System swap files are also considered temporary and they are not synchronized.
Excluding Specific Files
You may create an edit file containing a list of volume, subvolume, and file names or
patterns to be excluded from the source file set. Exclusion does not apply to the
destination file set. To preserve efficiency when exclude lists are large, patterns are
limited to trailing asterisks only.
Excluding a volume or subvolume will eliminate all processing for that entity, including
purging of extra destination files. Excluding a file does not prevent a destination file
from being purged if the corresponding source file does not exist and the PURGE
option is specified.
Purging Extra Destination Files
Specify the PURGE option to purge all destination files that do not exist in the source.
To create an exact duplicate of a source file set, this option is required to eliminate
extra files in the destination file set.
By default, the purge operation only applies to subvolumes that have files in the source
file set. Thus, if the synchronization is from $DATA.*.* to $BACKUP.*.*, a subvolume on
$BACKUP is not purged if no corresponding subvolume files exist on $DATA. To purge
extra subvolumes, specify the SUBVOLPURGE option in addition to the PURGE
option, as described in the paragraph
Purging Extra Subvolumes in the Destination File
Set below.
PURGE also applies to patterns such as $DATA.MYSUB*.SRV*. For each source
subvolume that has files that match the pattern, AutoSYNC purges extra destination
files that match the source file set pattern.
Excluded Files and Purge
The exclude list specified by the EXCLUDE option applies only to source files. It does
not apply to files in the destination that do not exist on the source. Therefore file in the
exclude list that do not exist on the source are considered for purging on the
destination (they are not excluded from purge).
To exclude files that exist only on the destination from being purged, specify the
EXCLUDEPURGE option with an excludepurge list.
Purging Extra Subvolumes in the Destination File Set
To purge entire subvolumes that do not exist in the source file set, specify the
SUBVOLPURGE option in conjunction with the PURGE option. To exclude specific
subvolumes from being purged, use the EXCLUDEPURGE option.
Caution. Some performance degradation could occur if an exclude file containing a
long list of files is shared by multiple syncfilesets.