Hi, I experienced a strange problem twice, then discovering that robocopy was causing the issue. A ZFS storage server, with CIFS integrated on the customer AD, multiple zfs shares on CIFS. A specific CIFS share has the root file system with AD permission for Administrators full control, while Domain Users can create/delete etc from the root onward. ==FIRST TIME ISSUE== The IT guy created a robocopy script running on the PDC over the CIFS share, to manipulate all the files on the share searching for files older than a specific date, and move them into a specific root subfolder of the same share (some kind of archiving). This script was running on a Saturday. Next Monday nobody was able to connect to the share, no permission, not even the administrator. I tried changing ACL by hand on the storage but no way. Dead share. That first time I could create a new share, copy over all the content, set all the original permission via ACL, rename the old share, share the new one as the old one and everything was fine again. ==SECOND TIME ISSUE== Later, the IT guy launched the robocopy again on Saturday. Monday the new share was dead again. Instead of doing again the copy and new share, I decided to dig more the problem. Before giving up, I asked the IT guy to reboot all the storage. Everything was up again after reboot! Anybody knows what may be the issue with robocopy on CIFS?? How can it corrupt CIFS sharing?? Gabriele.
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