We are running exchange 2010 standard edition in our main site with 2 mailbox servers in a DAG. I've added 2 more mailbox servers in a DR site connecting over a 20Mb fiber connection. I've tried adding one of the DR mailbox servers over to the DAG as database server, also tried updating copies of the database after it fails to update it. Been working with Microsoft support on this but they have been little slow getting back with me so wanted to see if I can find anyone that has had this issue before. We've changed TCP global settings, they've set the Cluster setting for samesubnet and crosssubnet threshholds settings to recommended, made sure my DAG replication networks were correct and that's about it so far. Tried running the update database from GUI and shell but to no avail. Seems like it is copying the logs and database but fails at the very end. We thought it might be backup software running so we turned that off completely. Here are the different error messages I get..
A source-side operation failed while performing seed operation. error occurred whil communicating with mbx-01 (source server..) unable to read data from transport connection.. connected host failed to respond..
A source side operation failed performing seed operation. An I/O error occurred while attempting to access file ..CatalogData-...ci on source server could not be opened. sys cannot find file.
Information Store (1988) Mailbox-MBX-01: The internal database copy (for seeding or analysis purposes) has been stopped because it was halted by the client or because the connection with the client failed.
Any help is appreciated..
Michael Duhon