Copy/Delete, Advanced

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Copy/Delete, Advanced

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Expert Mode: Copy/Delete, Advanced Settings

 

Automatically update shortcuts when they are copied or moved: SyncBack can be configured to automatically change shortcuts that are copied so that the copy points to the correct file. For example, if your source is C:\ and your destination is D:\ and you copy a shortcut that points to C:\abc.txt then you may want it to be changed (in the destination) to instead point to D:\abc.txt. In this example you would set the root folder for shortcuts on the source/left to C:\ and the root folder for shortcuts on the destination/right to D:\. In general the shortcut root folder is the same the source and destination folders, except when you are copying to UNC paths or network drives. In that case the shortcut root folder should be based on the drive on that remote computer.

 

Make safe copies (copy files using a temporary filename and then rename the file on success - reduces performance): When this option is ticked then SyncBackPro will copy files in a two stage process: first it will copy the file and use a temporary filename, then it will then replace the destination file with the temporary copy if the copy was a success. This avoids problems where the destination file may be deleted because the original file could not be copied, e.g. because it is locked and cannot be replaced. With FTP it is actually a three stage process as it must delete the file being replaced before renaming the temporary copy. With multi-zip (where the destination is a normal drive and not FTP etc.), safe copying is always used when creating the compressed file. When copying to the cloud, safe copying is not used due to the way cloud services work (an uploaded file may not appear immediately). This option is enabled by default and is recommended. If you have enabled versioning, on either the source or destination, then you cannot change this setting as safe copies must be used when versioning is used.

 

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We strongly recommend using the safe copy feature to avoid corrupting your backup files due to unpredictable failures or errors. However, there may be cases where performance is the most important factor. If you are copying thousands of files, especially small files, or you are copying over a network (this includes FTP and the cloud) then switching off safe copies can significantly reduce the backup time. Note that if you are using versioning then you cannot switch off safe copies (as versioning requires its use).

 

Prompt to retry if a file is locked or cannot be copied: If this option is enabled then SyncBackPro will prompt you if it cannot copy or delete a file, e.g. because it is locked, no access rights, etc. The prompt gives you the opportunity to close the program that has the file locked so the file can be copied or deleted by SyncBackPro. If you are running the profile in unattended mode, e.g. from the Windows Scheduler, then no prompt is made and the file will be skipped (an error message will be recorded in the log file). There is another option in SyncBackPro to close certain programs before a profile is run (see the Auto-close page).

 

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Note that if you've also enabled the option to replace/delete after a reboot then you will not be prompted.

 

If a file cannot be replaced/deleted because it is locked then replace/delete it after a reboot: If a file cannot be replaced/deleted because it is locked then SyncBack can configure Windows so that on the next reboot the file will be replaced/deleted. This option must be used with care because it cannot be guaranteed that the file will actually be replaced/deleted and there is no way to know if it did or did not.

 

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Note that if you've also enabled the option to prompt to retry if a locked file cannot be copied then you will not be prompted.

 

These features cannot be used to replace in-use files on FTP servers. Also, if NTFS compression is being used the replaced file will not be NTFS compressed.

 

Prompt to retry if source/left or destination/right drives do not exist: If a drive does not exist, e.g. because it has not been connected or the network connection is not available, then a prompt will be displayed. Note that if the profile is run unattended then no prompt is displayed and the profile will fail.

 

If a file cannot be copied because of security (Access Denied) then try Backup Read/Write copy method: The Backup Read/Write file copying method lets a user (who is a member of the Backup Operators user group) backup files that they have no access to. When this option is enabled if a file cannot be copied because you have no access rights to it then the backup method is used to try and bypass the file security.

 

Copy NTFS sparse files using Backup Read/Write copy method: The Backup Read/Write file copying method lets a user (who is a member of the Backup Operators user group) backup NTFS sparse files correctly (assuming the destination supports NTFS sparse files). When this option is enabled, and the file being copied is a sparse file, then the backup method is used to correctly copy the file. Note that sparse files will still be copied, and be valid and not corrupt, without using the backup read/write copy method, but the copy would no longer be sparse and therefore using more disk space.

 

Force the file modification date & time to be correct (may be required when using SAMBA or network drives): Sometimes the file system that files are copied to cannot correctly record the files last modification date & time. For example, when using SAMBA shares (or some NAS devices) there can be occasions when the file will have the current date & time as it's last modification date & time. To resolve this SyncBackPro can forcibly change the copies last modification and creation dates & times to be correct. The dates and times will be as accurate as Windows allows (within 100 nanoseconds), but note that file systems have different limitations on accuracy. This option is only available when copying from one file system to another, and not when using compression, the cloud, FTP, etc. There is another option (see the Compare Options, Date & Time page) to ask SyncBackPro to ignore small date & time differences. This can also be useful in avoiding problems where the file system cannot accurately record dates & times.

 

Copy file creation date & times: By default copies of files are given the current date & time as their creation date & time. If this option is enabled then the creation date & time is copied. Note that FTP servers cannot store file creation date & times.

 

Reset the archive file attribute on files once they have been copied: When enabled the archive attribute on a file, both on the source/left and destination/right, will be cleared once the file has been copied. Enabling this option will slightly decrease performance. This option is not available when doing Fast Backups. Note that when doing a backup to CD/DVD, the archive attribute is cleared before the file is burned to disk. This means the archive attribute could be cleared even if the file failed to be saved to CD/DVD.

 

Remove the read-only attribute from copies of files (useful when copying from a CD-ROM): In some situations, when a file is copied from a CD/DVD, then the file may automatically be marked as read-only (not by SyncBack, but by the file system driver in Windows). If this option is enabled then any read-only flag put on the copy of the file will be removed automatically.

 

Do not use the Volume Shadow Copy service (VSS) to copy open files: SyncBack can copy open/locked files by using the Volume Shadow Copy service that is part of Windows. However, if you cannot or don't wish to use this service then you can enable this option.

 

Copy all files in [source/destination] from the shadow volume (snapshot): SyncBack can optionally copy all files from the shadow volume (by using the Volume Shadow Copy service). This is useful when you want all the files to be copied at exactly the same time so you have a consistent file state across the backup set. A snapshot is taken of the drive at a single point in time so that essentially the files are frozen at that point. This does not stop users and other programs from modifying and deleting those files because they are changing files on the actual volume and not the shadow volume. It is recommended that this setting be used when doing a backup to CD/DVD or in situations where you have a set of files that are related to each other, e.g. backup of a set of database files.

 

Delete ALL the files and folders in source/left before scanning for changes: This option should be used with extreme care! It will delete all files and folders in the source/left folder before it scans for changes. Be extremely careful with this option as you could very easily delete all your files, e.g. if your source/left is C:\ then you will delete every single file on your C: drive. You have been warned.

 

Delete ALL the files and folders in destination/right before scanning for changes: This option should be used with extreme care! It will delete all files and folders in the destination/right folder before it scans for changes (if the destination/right is a single Zip file then just the Zip file will be deleted). Be extremely careful with this option as you could very easily delete all your files, e.g. if your destination/right is C:\ then you will delete every single file on your C: drive. You have been warned.

 

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When using cloud services such as Google Drive and Box you need to be extremely careful with this option. The same folder can be referenced from many other folders. This means you could potentially delete files and folders that are not just in your source/left or destination/right.

 

Silently fail if source/left cannot be reached through the network, drive does not exist, or there is no disk: When enabled, and the source/left drive cannot be accessed, then the profile will silently fail when run. No log file will be produced, and no failure result will be recorded. This option is useful when you have a profile scheduled to run periodically but are not always connected to the source/left.

 

Silently fail if destination/right cannot be reached through the network, drive does not exist, or there is no disk: When enabled, and the destination/right drive cannot be accessed, then the profile will silently fail when run. No log file will be produced, and no failure result will be recorded. This option is useful when you have a profile scheduled to run periodically but are not always connected to the destination/right, e.g. you backup to a network drive via a wireless network connection. If the destination is an email server, FTP server, or a cloud service, then SyncBack will attempt to connect to the server (at the relevant address and port) to see if it can be accessed. In previous versions a ping was used instead, but often pings are blocked by routers and firewalls.

 

Copy symbolic links as-is instead of copying the file the link points to: If enabled, and a symbolic link file is being copied, then instead of copying the file the link points to it copies the link. This means the link on the destination  will point to the same file the source link points to. Because of this you may want to make sure the symbolic links are relative and not absolute. For example, let's say you have a symbolic link on the source that points to C:\abc\def.txt. When copied to the destination the destination link will still point to that same file. However, if the link was relative and instead pointed to ..\def.txt then the destination copy of that link would defer to the def.txt file on the destination. This option is only available on Windows Vista and newer, when the Standard Windows File Copy method is being used, and is only used when copying between NTFS or ReFS file systems.

 

Copy short filenames (not used for compression, FTP, etc.): If enabled, when a file is copied from one file system to another then if the file has a short filename it will also be copied. Short filenames are a legacy feature of Windows and are there to help old software remain compatible. Note that this setting is ignored when used with FTP, compression, the cloud, etc. Also, enabling this setting will have an affect on performance. This option is not enabled by default.

 

Stop Windows from caching a files contents when it is copied: If enabled, when a file is copied from one file system to another then SyncBackPro will tell Windows not to cache the contents of the file in memory. If you are copying large files, or want to reduce the memory load on the system, then it is recommended you enable this option. This option is only available on Windows Vista and newer, when the standard, memory map, read-ahead or threaded file copy methods are being used and is only used when copying between file systems.

 

If possible resume a broken file transfer when a profile is re-started (may slow profile): This option is only available when using FTP or normal file systems. When enabled, if a profile stops because the network connection is lost, for example, and a file transfer is in progress, then when the profile is next run it will attempt to resume the upload/download. If FTP is being used then the FTP server must support the resume feature. Note that when copying files across Windows networks then enabling this option can slow down file copying, therefore it is only recommended enabling this option if very large files are being copied across a network and there is a chance the connection will be broken. If a profile is aborted then no attempt will be made to resume a file transfer.

 

Limit bandwidth usage to...: If a value above zero is entered then when copying files the bandwidth usage is limited to what is specified (kilobytes per second). Note that there are some cases where the bandwidth usage cannot be limited, e.g. when using compression. Note that this bandwidth is used even when copying files to internal or external drives, as well as to other computers or NAS devices. There is a separate setting to limit the FTP bandwidth usage on the FTP, Advanced page and also one for the Cloud.

 

 

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