I bet the difference is the /SEC (or /COPYALL) option requires a lot more network traffic to retrieve the security information for each and every file (even files that already exist on the destination) to see if any changes in the security parameters are needed. You could run FILEMON (or it's replacement PROCMON) from Sysinternals (Microsoft) to see the file activity on one end. You could run it without the /SEC option most of the time as the copied files will just get their security from the parent directory by default, and then run it occasionally with /SEC to fix up any permission oddities.
From: Ralph Smith [mailto:m...@gatewayindustries.org] Sent: Wednesday, July 14, 2010 12:13 PM To: NT System Admin Issues Subject: EXTERNAL:RE: Robocopy /SEC About 24K files, 3.6GB see below. It looks like all the time is in the "Extras" column. I don't see anything of interest in the event logs of either server or in any DC. ------------------------------------------------------------------------ ------ Total Copied Skipped Mismatch FAILED Extras Dirs : 3981 75 3906 0 0 12 Files : 24606 370 24236 0 0 57 Bytes : 3.646 g 147.11 m 3.503 g 0 0 3.08 m Times : 34:31:10 0:32:41 0:00:00 33:58:28 Speed : 78651 Bytes/sec. Speed : 4.500 MegaBytes/min. Ended : Wed Jul 14 05:01:13 2010 Here's a log from before I added the /SEC switch: ------------------------------------------------------------------------ ------ Total Copied Skipped Mismatch FAILED Extras Dirs : 3903 0 3903 0 0 0 Files : 24231 14 24217 0 0 0 Bytes : 3.613 g 5.63 m 3.607 g 0 0 0 Times : 0:36:43 0:01:09 0:00:00 0:35:33 Speed : 85009 Bytes/sec. Speed : 4.864 MegaBytes/min. Ended : Thu Jun 17 19:06:44 2010 FWIW, I'm copying from a Win 2003 SP2 server to a Win 2008 server over a VPN (DSL at one end, cable at the other) The command line running on the remote server is: c:\robocopy\robocopy D:\Data "\\MainOfficeServer\BranchNameShare" /MIR /SEC /LOG:c:\robocopy\DailyBackupLog.txt /R:10 /w:10 /TS Ralph Smith Gateway Community Industries 845-331-1261 x234 ________________________________ From: David Lum [mailto:david....@nwea.org] Sent: Wednesday, July 14, 2010 10:03 AM To: NT System Admin Issues Subject: RE: Robocopy /SEC How much data are you moving? I use /SEC or /COPYALL and I don't see a 24x increase in copying 4-5GB and thousands of files. Anything in the event log of the source, target, or DC's? David Lum // SYSTEMS ENGINEER NORTHWEST EVALUATION ASSOCIATION (Desk) 971.222.1025 // (Cell) 503.267.9764 From: Ralph Smith [mailto:m...@gatewayindustries.org] Sent: Wednesday, July 14, 2010 6:19 AM To: NT System Admin Issues Subject: Robocopy /SEC I've been using RoboCopy for years to copy files from remote offices back to a server at the main office and it has worked great. Recently I had to for the first time use the backed up files when rebuilding a server at one of those remote offices and realized that because I was only using the /MIR switch I didn't have any of the security settings. Not a big deal because I have them documented and was able to recreate them. However, I decided to add the /SEC switch for future backups. What I have found is that whereas in the past it used to take on the average 30 to 60 minutes every night, since adding /SEC it now runs for 24 hours or more, even though the actual copy time is only 30 minutes or so. Does anyone know if this is typical behavior when using RoboCopy with /MIR /SEC? Ralph Confidentiality Notice: ****************** This communication, including any attachments, may contain confidential information and is intended only for the individual or entity to whom it is addressed. Any review, dissemination, or copying of this communication by an yone other than the intended recipient is strictly prohibited. If you are no t the intended recipient, please contact the sender by reply email, delete a nd destroy all copies of the original message. Confidentiality Notice: ****************** This communication, including any attachments, may contain confidential information and is intended only for the individual or entity to whom it is addressed. Any review, dissemination, or copying of this communication by an yone other than the intended recipient is strictly prohibited. If you are no t the intended recipient, please contact the sender by reply email, delete a nd destroy all copies of the original message. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
