how does Windows NT handle concurrent access to files?

[jimbobfellamelad]

I know in my experience, you usually arent allowed to access a network resource if someone else has already accessed it and if you are, you are only allowed to open a read only copy. Is this right? Also how does UNIX handle this problem?

 

[JSiva]

Hi

Yes in Windows you can see the Message as "want to open as readonly or to make a copy", if concurrent access is there.

In UNIX there is no such message will be displayed and only the last saved information will exist. You can even simulate this in the Windows PC by opening a same file twice in the same PC and edit it. Only the last saved infotmation will be saved. JSiva here...