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The Microsoft utility called ROBOCOPY might be good for this. I've used it to copy hundreds of folders with their permissions intact from one server to another. It's on either the Windows 2000 installation CD or the Resource Kit CD, one or the other, and has a corresponding documentation file. At 02:40 PM 12/16/2003, Cameron Ramo Williams wrote: >Hi NAG members > >I'm the sysadmin for the Center for Global Change and Earth Observations >here on campus. Our Center currently houses approximately 5 Terabytes of >imagery data on two Dell PowerVault NAS systems. Recently I have been asked >to copy all of this data over to a second NAS array temporarily because our >current array (including the drives in the vaults) needs servicing. I can't >pull the drives during the servicing and I have only about a 2 week time >window to get the entire dataset copied and verified on the "mirror" system. > >What I want to do is basically copy the entire dataset, maintaining current >ownerships/permissions, and verify the copied files are the same as the >originals. The files are stored on an NTFS file system and the NAS is >running Windows 2000 Advanced Server. Obviously with this amount of data I >can't stream it all off to tape and reload it given the speed of streaming >to tape and the sheer number of tapes I would have to have on hand to store >close to 5 TB. I was wondering if anyone here on campus has done similar >copying/verification on a comparable sized datawarehouse, or at least has an >idea of what the best way to proceed in copying it all over to the second >NAS with ownership and permissions intact. If you have any suggestions, let >me know. > >Also, just for my own knowledge here on campus, are there many other >departments here that have datasets of a comparable size? The Library >perhaps, or the Cyclotron lab? > >Thanks for any ideas you can suggest! > >Cameron > >--- >_______________________________________ >Cameron R. Williams >Information Technologist >Center for Global Change and Earth Observations >Michigan State University >101 Manly Miles >East Lansing, MI 48825 >(517) 432-4675 >[log in to unmask] --Chris ============================================== Chris Wolf Computer Service Manager Agricultural Economics [log in to unmask] Michigan State University 517 353-5017