Find out who is locking a file on a network share

Question

I want to known who is locking a file on a network share   Here is the problem   the network share is on a NAS  so I can t log on  I need a tool to find out remotely who is locking the file  It is not practical to reboot the NAS every time  because there are several users   Handle exe  Process Explorer and PsFile seems to be limited to files on the local machine  so they don t work for me

User · Answer

If its simply a case of knowing seeing who is in a file at any particular time  and if you re using windows  just select the file  view  as  details   i e  rather than Thumbnails  tiles or icons etc  Once in  details  view  by default you will be shown   - File name  - Size  - Type  and  - Date modified   All you you need to do now is right click anywhere along said toolbar  file name  size  type etc     and you will be given a list of other options that the toolbar can display    Select  Owner  and a new column will show the username of the person using the file or who originally created it if nobody else is using it    This can be particularly useful when using a shared MS Access database

User · Answer

Partial answer  With Process Explorer  you can view handles on a network share opened from your machine   Use the Menu  Find Handle  and then you can type a path like this    Device LanmanRedirector server share

User · Answer

The sessions are handled by the NAS device  What you are asking is dependant on the NAS device and nothing to do with windows  You would have to have a look into your NAS firmware to see to what it support  The only other way is sniff the packets and work it out yourself

User · Answer

Just in case someone looking for a solution to this for a Windows based system or NAS   There is a built-in function in Windows that shows you  what files on the local computer are open locked by remote computer  which has the file open through a file share     Select  Manage Computer   Open  Computer Management    click  Shared Folders  choose  Open Files    There you can even close the file forcefully

User · Answer

On Windows 2008 R2 servers you have two means of viewing what files are open and closing those connections   Via Share and Storage Management  Server Manager   Roles   File Services   Share and Storage Management   right-click on SaSM   Manage Open File  Via OpenFiles  CMD   Openfiles exe  query  s SERVERNAME  See http   technet microsoft com en-us library bb490961 aspx

User · Answer

sounds like you have the same problem i tried to solve here   in my case  it s a Linux fileserver  running samba  of course   so i can log in and see what process is locking the file  unfortunately  i haven t found how to close it without killing the responsible session   AFAICT  the windows client  thinks  it s closed  but didn t bother telling the fileserver

User · Answer

PsFile does work on remote machines   If my login account already has access to the remote share  I can just enter   psfile   remote-share    replace  remote-share  with the name of your file server  and it will list every opened document on that share  along with who has it open  and the file ID if I want to force the file closed   For me  this is a really long list  but it can be narrowed down by entering part of a path   psfile   remote-share I   Human Resources   This is kind of tricky  since in my case this remote share is mounted as Z  on my local machine  but psfile identifies paths as they are defined on the remote file server  which in my case is I   yours will be different    I just had to comb through the results of my first psfile run to see some of the paths it returned and then run it again with a partial path to narrow down the results   Optionally  PsFile will let you specify credentials for the remote share if you need to supply them for access   Lastly  a little known tip  if someone clicks on a file in Windows Explorer and cuts or copies the file with the intent to paste it somewhere else  that act also places a lock on the file

User · Answer

Close the file e  gestion yourfile dat  open by any user   a     openfiles  disconnect  a    op  e  gestion yourfile dat    more in  http   dosprompt info commands openfiles asp

[windows] Find out who is locking a file on a network share

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