There is no disturbed locking mechanism built into DFS/R. If a file is open, typically it will not get replicated. If the same file is open in two different locations the last write will win, although DFSR by default will store any of these "conflicts" in a folder just in case. DFS/R is great if you are distributing read-only content or content that is modified in one place (or more if coordinated) and requires alternate locations for reading/writing/backup.
If you need to distribute files for read and write to multiple locations then you need to leverage a central file store or a wide area file system (WAFS) that provides a distributed locking mechanism. Most true WAN Accelerators (Riverbed) *do not* do this. I have had some limited experience with Tacit and Brocade who both provide viable WAFS solutions that integrate well with W2K3R2. Aric -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steven Comeau Sent: Thursday, April 06, 2006 12:16 PM To: [email protected] Cc: [email protected] Subject: Re: [ActiveDir] 2003 DFS/open files This is a good question and I hope it gets answered. We have 20 sites and want to put servers out there and possibly do DFS w/replication to keep main copies at the HQ for backup purposes, but I am afraid of changes to a single file that is opened at several sites. I was considering WAN Accelerators/WAN Cache devices that negotiate the file locks, etc., that makes the file appear it is only open at the HQ file server. Anyone have experience with these type of devices? Steven Comeau Sr. Director of IT Community Options 16 Farber Road Princeton, NJ 08540 EMail: [EMAIL PROTECTED] Phone: 609-951-9900 x114 FAX: (609) 919-3889 www.comop.org Give the gift of flowers http://www.Vaseful.com. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This message is intended for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any distribution or copying of the communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and return the original message to us at this e-mail address. Thank you for your cooperation in supporting confidentiality. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
