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| Advanced Windows Backup Agent |
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Advanced Usage of the Windows Backup Agent Coaly Solutions Windows Backup Agent has powerful optional features:
These options are configured by entering "Advanced Mode" - simply click the link in the upper left corner of Backup Agent while in Wizard Mode:  and you will enter the advanced configuration mode:  Changes Only Updating of Files By default, the Windows Backup Agent retransfers changed files to the remote site in an inefficient manner. That is, if the file on your end changes, the entire file will be resent. In the case of large files, this could mean quite a bit of extra time spent, and bandwidth used, just to update a small amount of changes. To enable efficient transfer of only the changes that have occurred in your files, highlight your profile in advanced mode, edit the profile (click the icon with the pencil in it), and click the "Special" category in the lower left hand corner. In the resulting tab sheet, check the box marked "Use Partial File Updating":  With this option checked, files that change on your end will not be entirely retransmitted - only the changes necessary to update the remote file will be transmitted. Versioning Versioning allows you to retain multiple versions of a file. These snapshots of the past state(s) of the file can be accessed just like any other file on your offsite backup. This is useful if you want to retain multiple revisions of a file or if you want to guard against destructive edits and/or unintended changes to the file. To enable versioning, highlight your profile in advanced mode, edit the profile (click the icon with the pencil in it), and click the "Versioning" category in the lower left hand corner. In the resulting tab sheet, check the box marked "Keep multiple backup versions":  With this option checked, your most up to date version of a file will have exactly the same filename as it always had. Versions in the past, however, will be renamed with a human readable time/date stamp. If you additionally check the "Filename Encoding" option, the past versions will be renamed with a machine readable time/date stamp that interoperates well with the restore wizard. We recommend checking this additional option. For example: If a frequently updated file named file.doc is changed, and your profile has "keep multiple backup versions" checked, past versions will have names that look like: file.2-9-2009 4.36.28 PM.doc If you additionally have the "Filename Encoding" option checked, past versions will have names that look like this instead: file.d20090209-t165328.doc. Compression of Remote Files You may set your profile to automatically compress each file as it is transferred, saving space on the remote end. These compressed files will be compressed, file by file, using standard ZIP compression. To enable compression, highlight your profile in advanced mode, edit the profile (click the icon with the pencil in it), and click the "Zip / Encryption" category in the lower left hand corner. In the resulting tab sheet, check the box marked "ZIP Each File Individually". Files that have already been backed up will not be retroactively compressed. Only new files and updated files will be compressed. If you enable compression on an existing profile that has versioning enabled, you may find yourself with current versions that are compressed, but older versions that are uncompressed. This is no problem. NOTE: Your backup will take longer to run because compressing your files is a computationally expensive option. Further, if your source files are mostly image or movie files, such as JPEG and MPEG files, enabling compression will have no benefit as those filetypes are already heavily compressed on their own. Do not enable Zipping for a dataset predominately composed of such files. Encryption of Remote Files You may set your profile to automatically encrypt each file as it is transferred. These files will be encrypted with the ZIP encryption function, using the encryption scheme you select. To enable encryption, highlight your profile in advanced mode, edit the profile (click the icon with the pencil in it), and click the "Zip / Encryption" category in the lower left hand corner. In the resulting tab sheet, choose the "Encryption" tab and then check the box "Encrypt Files Copied Left to Right". We recommend using the encryption scheme "Zip-Compatible AES (256 bit)" which is the default choice. Please be sure to enter, and confirm, a passphrase for the encryption. Files that have already been backed up with this profile will not be retroactively encrypted until they are changed, and need to be updated. Further, enabling encryption on an existing remote data set, with versioning turned on, will result in a scenario where current versions of your files are encrypted, but previous versions in the past are not. If you plan on encrypting the targets of a particular profile, we highly recommend running with that option from the very beginning, and not switching on encryption at a later date. If you find yourself in this situation, it may be safer to simply delete all of the offsite data and start your backup regimen from scratch, with encryption turned on. NOTE: Your backup will take longer to run because encrypting files is a computationally expensive option. Please feel free to contact technical support at any time for help implementing any of these measured - we are very interested in supporting encryption and privacy for our customers in any way that we can. |