Out of curiosity, what OS are you running this from? And have you tried to run it from other OS versions? I’ve found that Robocopy changes a few things in each OS rev and I’ve never found a good explanation of the changes. For instance in Win8, copying the security permissions would take a very long time by default due to some changes. Also, including the Owner attribute would appear as though the file was modified each time. And in Win7/Server 2008r2, there was another similar bug that had a hotfix: http://support.microsoft.com/kb/2646535.
For speed, I would try to see if /copy:da along with /nodcopy helps by any chance. And in case you are using /z, try to skip that for the test since I’ve seen performance gains when not using that. I personally don’t have any other recommendations for sync tools that would scale to millions of files (I use FreeFileSync for our user’s on their laptops though and it works very well though). -Aakash Shah From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Monday, December 8, 2014 4:12 PM To: [email protected] Subject: Re: [NTSysADM] syncing millions of files in a folder Obviously robocopy's syntax has changed....I can't imagine a utility like that being canned! It's not a UAC issue, is it? Sent from my BlackBerry® smartphone on O2 ________________________________ From: Dave Eldridge <[email protected]<mailto:[email protected]>> Sender: [email protected]<mailto:[email protected]> Date: Mon, 8 Dec 2014 17:08:30 -0700 To: <[email protected]<mailto:[email protected]>> ReplyTo: [email protected]<mailto:[email protected]> Subject: [NTSysADM] syncing millions of files in a folder looking for what people use to sync/copy folders that have millions of files in them. we have one such folder that i used to copy with robocopy. It would blat me the additional changes for that day. Worked great for a few years. It stopped working a while ago and i can't seem to restart it. robocopy from a command line just sits there forever. What has anyone else tried for this type of process? thanks dave
