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RE: Backup Archiveable items - 6/26/2007 1:37:12 AM
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ebgreen
Posts: 5037
Score: 31
Joined: 7/12/2005
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Personally I wouldn't reinvent the wheel. Use Robocopy. It's free from MS and already does justabout anything you could ever want for regular backups like this.
_____________________________
"... when you are good and crazy, oooh, oooh, oooh, the sky is the limit!" - The Tick
Goog places to start:http://www.visualbasicscript.com/m_24727/tm.htm
http://www.visualbasicscript.com/m_47117/tm.htm
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RE: Backup Archiveable items - 6/26/2007 3:35:31 AM
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tmeers
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Joined: 11/13/2006
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Hmm I'm begining to see a trend here...any ways, is it possible for roboscript to generate the time stamped folder to copy into? That is my biggest bump in the road and really needs to be there. All this is doing to sending the folders/files to my second hard drive, then once a month I burm it all to DVD. And it is much easier to dig thru the folders if the are all at the very least datestamped.
Maybe some one could show me an example? I just dont think this could be that impossible in VBS.
Thanks for your input.
Tim
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RE: Backup Archiveable items - 6/26/2007 3:49:27 AM
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ebgreen
Posts: 5037
Score: 31
Joined: 7/12/2005
Status: online
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Perhaps you should explain more regarding what your desired outcome is. You want to copy files to a folder named according to a date time stamp, but only copy files with the archive flag set. Is that correct?
_____________________________
"... when you are good and crazy, oooh, oooh, oooh, the sky is the limit!" - The Tick
Goog places to start:http://www.visualbasicscript.com/m_24727/tm.htm
http://www.visualbasicscript.com/m_47117/tm.htm
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RE: Backup Archiveable items - 6/26/2007 4:10:19 AM
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tmeers
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Yes that is correct. As it is the script runs 3 times a week and creates the new folder for each day. I figure if it only copied the modified ones I could do it more often weather it be thru vbs or any of the above.
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RE: Backup Archiveable items - 6/26/2007 4:42:54 AM
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tmeers
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Well my understanding is that when you modify a file it should flip that flag to say 'Ready to be archived' correct. Otherwise how would backup software know what to backup for incremential backups. But just baseing it off of the flag is what I was looting at thinking it was the same.
Thanks
Tim
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RE: Backup Archiveable items - 6/26/2007 5:58:54 AM
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ebgreen
Posts: 5037
Score: 31
Joined: 7/12/2005
Status: online
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No. Modifying a file does not flip the Archive flag. When backup software only backs up modified data, it simply compares the last modified date on the file to the last modified date of the same file in the last backup (it can be a little more complex depending on the software but that is the gist of it).
< Message edited by ebgreen -- 6/26/2007 6:00:40 AM >
_____________________________
"... when you are good and crazy, oooh, oooh, oooh, the sky is the limit!" - The Tick
Goog places to start:http://www.visualbasicscript.com/m_24727/tm.htm
http://www.visualbasicscript.com/m_47117/tm.htm
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RE: Backup Archiveable items - 6/26/2007 6:35:48 AM
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tmeers
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Hmm ok, well I'm still trying to solve this quandry. I know that my script is a little overkill but it has everything (ok well almost everything) I need. I really would liek to continue using it but if there is a better solution that can do everything my script is doing then I say bring it on.
Thanks for you help in this issue by the way.
Tim
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RE: Backup Archiveable items - 6/26/2007 7:04:06 AM
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ebgreen
Posts: 5037
Score: 31
Joined: 7/12/2005
Status: online
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Well normally the way that this is done is by copying the files to the same directory every time. That way it is simple for the backup app to just compare the source files to the files that are already in the backup dir. In your case you want to compare to files that are located somewhere else altogether. In this case Robocopy will not work for what you want. If I had this problem to solve, I would do so by creating two dictionaries. The first would have the keys be the full path and file name for every file in the source dir. The value would be the last mod date for each file. The second dictionary would need to be built from a file that you have saved in the root of the previous buckup folder. The reason you need to do this is that you need to maintain data persistence between runs of your script. The file that you save every time that the script runs needs to keep a complete record for every file that you have ever backed up. That is the only way that you can know on friday that a file in source is now different from the one that you backed up on monday but didn't touch on wednesday (if that makes sense).
_____________________________
"... when you are good and crazy, oooh, oooh, oooh, the sky is the limit!" - The Tick
Goog places to start:http://www.visualbasicscript.com/m_24727/tm.htm
http://www.visualbasicscript.com/m_47117/tm.htm
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RE: Backup Archiveable items - 7/12/2007 2:36:42 AM
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Rischip
Posts: 502
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Actually modifying a file does set the archive bit.
Full backups reset the bit.(This does not include copy backups)
Differential backups do not reset the bit. (All files that have changed since last full backup are used)
Incremental backups do reset the bit. (All files that have chnaged since last incremental get backed up)
So using the Archive bit should be an adequate test.
_____________________________
Rischip
Author of - The Grim Linker
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