When a user has a file locked for modification and his coworker tries to edit it, the other user will get an error like:. DFSR does have a mechanism for locked files, but it is only within the server's own context. DFSR will not replicate a file in or out if its local copy has an exclusive lock. But this doesn't prevent anyone on another server from modifying the file.
Back on topic, the issue of shared data being modified geographically does exist, and for some folks it's pretty gnarly. We're occasionally asked why DFSR doesn't handle this locking and take of everything with a wave of the magic wand. It turns out this is an interesting and difficult scenario to solve for a multi-master replication system.
Let's explore. Unfortunately this also means that there is often a single point of failure in the distributed locking system. Since a central broker must be able to talk to all servers participating in file replication, this removes the ability to handle complex network topologies. Ring topologies and multi hub-and-spoke topologies are not usually possible.
In a non-fully routed network, some servers may not be able to directly contact each other or a broker, and can only talk to a partner who himself can talk to another server — and so on.
This is fine in a multi-master environment, but not with a brokering mechanism. Some solutions limit the topology to a pair of servers in order to simplify their distributed locking mechanism. For larger environments this is may not be feasible. As you think further about this issue, some fundamental issues start to crop up.
For example, if we have four servers with data that can be modified by users in four sites, and the WAN connection to one of them goes offline, what do we do? The users can still access their individual servers — but should we let them? We don't want them to make changes that conflict, but we definitely want them to keep working and making our company money.
You said you disabled the antivirus, is it still disabled. Or did it not help and you enabled it? Even if you are not the author of a thread you can always help others by voting as Helpful. This can be beneficial to other community members reading the thread. Oscar Virot. Per the first link, I've run AccessEnum on the files, they show I have full permission I'm using a Domain Admin account that I've also give full admin rights on the server. I've even tried running it with system credentials using psexec and still get an access denied when the issue is occurring.
The second link looks much more intriguing, however it appears doing this will remove the ability for files shared from the server being cache on clients.
I've already disabled caching for the share that is having this issue, but there are other shares on the server that require their files to be cacheable for Windows 7 clients, so I don't believe I can try disabling opportunistic locking.
Office Office Exchange Server. Not an IT pro? Resources for IT Professionals. Sign in. United States English. I think this is recent with a new windows update.
Clients local R2 file server will on occasion not prevent users from opening already open files. They are also AutoCAD users resulting in lost work when one saves over the changes of another.
No, presently we are advising users to not leave files open for extended periods of non use. The issue is still present. I found the problem had to do with windows dropping idle connections after a certain amount of time. And if CAD doesn't do its autosave before that timer runs out then it releases the file and allows others to get into it.
For some reason I cant seem to find the registry that I ended up changing, but try modifying this one. I'm glad you say this because from my own investigations yesterday I began suspecting this very setting. Checked the lanman server reg settings and this reflected the above, fingers crossed, thanks for the reply.
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