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Subject:
File synchronization
Category: Computers > Software Asked by: devilspgd-ga List Price: $10.00 |
Posted:
21 Mar 2003 23:55 PST
Expires: 06 May 2004 00:30 PDT Question ID: 179471 |
I'm looking for a freeware or inexpensive shareware program to synchronize file between a Windows XP laptop and a Windows 2000 server. Sounds simple enough. However, I need something that does a true synchronization -- Too many programs do a one way or two way copy/merge but don't handle deletes properly. I need something that handles files being added, updated or deleted on either side, or any combination thereof, and I need something to keep everything in synch. It's also important to note one of the computers is a laptop, so if the program supports real-time synchs or scheduled synchs it must handle being offline without spewing too many errors or losing any data. The machines are connected via a LAN, or occasionally a VPN, Windows file sharing is sufficient. |
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There is no answer at this time. |
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Subject:
Re: File synchronization
From: njyoder-ga on 29 Mar 2003 17:46 PST |
I have not tried this myself, but you might want to check out Windows' built in support for doing synchronization. It has something called 'briefcases' which act like normal folders, but they support synchronization. To create a briefcase, go to the folder you want to create it in, then select File->New->Briefcase from the menu. Also, if you don't mind a little scripting this wouldn't be hard to do yourself. You could use rsync along with some simple scripts to do this. For handling deletes you would need to keep track of when the last synchronization took place, and what was synchronized/deleted. This way, if a file that was added in a previous sychronization, but no longer exists the script will know to delete it. When synchronizing with other computers it's important to decide whether a file was created again or if it simply has an old version that should be deleted. If the date of addition for the file is after the date of deletion, it will re-add the file because it knows it was re-created. Otherwise it will delete the file. Of course, this creates a conflict if the file was deleted on one computer and modified on another (similar to the problem of two sperately modified versions), but that's unavoidable. |
Subject:
Re: File synchronization
From: devilspgd-ga on 29 Mar 2003 18:47 PST |
I played with the Briefcase a bit, but since I have several folders scatted around my harddrive, it's less then efficient. Also, Briefcases tend to create orphans very quickly if you add files to the Briefcase itself, rather then a subfolder. I was looking at using rsync, but the delete handling has been the biggest problem, building a system to track deletes is a big beyond my abilities right now. I'm starting to think I should just shell out the cash and buy something, probably SureSync workstation initially, then possibly upgrade to SureSync server version later on. Thanks for the feedback though! |
Subject:
Re: File synchronization
From: innocentkiller-ga on 31 Mar 2003 17:36 PST |
Couldn't you just syncronize a folder? It doesn't have to be a briefcase. Set up in your network settings that whenever you connect to the network, to synchronize the certain folder(s). |
Subject:
Re: File synchronization
From: devilspgd-ga on 31 Mar 2003 18:24 PST |
Offline file support in Windows? I've played with it in the past, but the problem I ran into with offline support is twofold. One, it refuses to support database files. There might be a workaround, I haven't looked yet, the second problem was more overwhelming. Basically, once it decides offline mode is the way to go, I have a lot of trouble forcing it back online until it decides it's good and ready. I often connect to the 'net on a slow line (dialup or 19.2K wireless) when I need to grab a file, and in that configuration it's impossible to get Windows to go into online mode in less then 10 minutes, plus whatever time it needs to synchronize changed files. I'm pretty sure nothing in Windows will do what I need, and I've basically exhaused freeware solutions at this point, so I think I'll just go for commercialware. |
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