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Rule of File Synchronization

Option Do nothing in the task wizard : Delete

Sync direction Action
Folder1 ==> Folder2  
Modified Unchanged Backup 2, copy 1 to 2
Unchanged Modified Do nothing
Same timestamp Do nothing
Exist Do not exist Copy 1 to 2
Do not exist Exist Do nothing
 
Folder1 <== Folder2  
Modified Unchanged Do nothing
Unchanged Modified Backup 1, copy 2 to 1
Same timestamp Do nothing
Exist Do not exist Do nothing
Do not exist Exist Copy 2 to 1
 
Folder1 <=> Folder2  
Modified Unchanged Backup 2, copy 1 to 2
Unchanged Modified Backup 1, copy 2 to 1
Same timestamp Do nothing
Exist Do not exist If 2 deleted after the last sync, Do nothing
Else (1 is a new file) : copy 1 to 2
Do not exist Exist If 1 deleted after the last sync, Do nothing
Else (2 is a new file) : copy 2 to 1

Option Delete the remained file in the other side in the task wizard : Delete

Sync direction Action
Folder1 ==> Folder2  
Modified Unchanged Backup 2, copy 1 to 2
Unchanged Modified Do nothing
Same timestamp Do nothing
Exist Do not exist Copy 1 to 2
Do not exist Exist If 1 deleted after the last sync,
Backup 2, delete 2
Else (2 is a new file) : Do nothing
 
Folder1 <== Folder2  
Modified Unchanged Do nothing
Unchanged Modified Backup 1, copy 2 to 1
Same timestamp Do nothing
Exist Do not exist If 2 deleted after the last sync,
Backup 1, delete 1
Else (1 is a new file) : Do nothing
Do not exist Exist Copy 2 to 1
 
Folder1 <=> Folder2  
Modified Unchanged Backup 2, copy 1 to 2
Unchanged Modified Backup 1, copy 2 to 1
Same timestamp Do nothing
Exist Do not exist If 2 deleted after the last sync,
Backup 1, delete 1
Else (1 is a new file) : copy 1 to 2
Do not exist Exist If 1 deleted after the last sync,
Backup 2, delete 2
Else (2 is a new file) : copy 2 to 1

Option Copy to the other side in the task wizard : Delete

Sync direction Action
Folder1 ==> Folder2  
Modified Unchanged Not available
Unchanged Modified Not available
Same timestamp Not available
Exist Do not exist Not available
Do not exist Exist Not available
 
Folder1 <== Folder2  
Modified Unchanged Not available
Unchanged Modified Not available
Same timestamp Not available
Exist Do not exist Not available
Do not exist Exist Not available
 
Folder1 <=> Folder2  
Modified Unchanged Backup 2, copy 1 to 2
Unchanged Modified Backup 1, copy 2 to 1
Same timestamp Do nothing
Exist Do not exist Copy 1 to 2
Do not exist Exist Copy 2 to 1

Option Mirror: Delete file in the target folder if it is not in the source folder in the task wizard : Delete

Sync direction Action
Folder1 ==> Folder2  
Modified Unchanged Backup 2, copy 1 to 2
Unchanged Modified Backup 2, copy 1 to 2
Same timestamp If the file size is same, Do nothing
else
Backup 2, Copy 1 to 2
Exist Do not exist Copy 1 to 2
Do not exist Exist Backup 2, delete 2
 
Folder1 <== Folder2  
Modified Unchanged Backup 1, copy 2 to 1
Unchanged Modified Backup 1, copy 2 to 1
Same timestamp If the file size is same, Do nothing
else
Backup 1, Copy 2 to 1
Exist Do not exist Backup 1, delete 1
Do not exist Exist Copy 2 to 1
 
Folder1 <=> Folder2  
Modified Unchanged Not available
Unchanged Modified Not available
Same timestamp Not available
Exist Do not exist Not available
Do not exist Exist Not available

Option Delete files older than following days in the task wizard : Delete

Sync direction Action
Folder1 ==> Folder2  
Newer Newer Do Sync Action
Newer Older Do Sync Action
Older Older Backup 1 and 2, delete 1 and 2
Older Newer Backup 1, delete 1
 
Folder1 <== Folder2  
Newer Newer Do Sync Action
Newer Older Do Sync Action
Older Older Backup 1 et 2, delete 1 et 2
Older Newer Backup 2, delete 2
 
Folder1 <=> Folder2  
Newer Newer Do Sync Action
Newer Older Do Sync Action
Older Older Backup 1 and 2, delete 1 and 2
Older Newer Do Sync Action

Preview, Synchronize Timestamps Only:

Folder1 Folder2 Size Condition Action
Newer Older Same size Copy timestamp from 1 to 2
Newer Older Different Size Do Nothing
Older Newer Same size Copy timestamp from 2 to 1
Older Newer Different Size Do Nothing
Exist Do not exist   Do Nothing
Do not exist Exist   Do Nothing
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