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DAG replication issues Exchange 2010

Hi Team,

I finished setting up a DAG in exchange 2010 last week with a mapi and replicaiton network. Aside from this, 2 of my active servers also have a SAN network. The 3rd and Passive server in the Dag has the storage locally in the server so no SAN network. I begined creating database copies last week and it worked for some and other just said resyncronizing or failed. I noticed that resyncronizing left a Copy Queue Length number next to the mailbox  and it did not decrement at all so it didn't seem to be doing anything. After suspending and reseeding multiple times I decided to copy the database to the other server in DAG which left a re-syncronizing as well, but when this was done I copied that database to the 3rd server and suddenly all the copy queue length numbers begined decrementing leading to a healthy copy. In conclusing, the databases needs to be copied to all 3 servers in the Dag in order for it to work, i know this is not the way it should be but is the only work around I found up to now. I would like to find a solution to this.

Thank you.
Avatar of Manpreet SIngh Khatra
Manpreet SIngh Khatra
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In conclusing, the databases needs to be copied to all 3 servers in the Dag in order for it to work, i know this is not the way it should be but is the only work around I found up to now. I would like to find a solution to this - Ideally it shouldnt have happened and you were working in the correct way with re-seeding from EMC and it would only fail if the DB is too large or the Network for some reason cant handle the copying of data.

One Question when you do a reseed do you select any Network to reseed as it should be used ??

- Rancy
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Hi Rancy,

I try doing it without selecting a network as well as selecting the internal network and the replication network. Both give the same result. I don't understand why when I seed it between all 3 servers it works.
How do you seed between all Servers at the same time ? and what do you mean by "I don't understand why when I seed it between all 3 servers it works".

- Rancy
Server 1 seeds to server 2, the database copy fails, then I seed from server 1 to server 3 and the database copy on server 2 and 3 become healthy.
Thats Strange !! Ideally it should show each Copy status humm

- Rancy
No solution yet found
What is the Exchange version of all three nodes ?

- Rancy
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Solution after contacting Microsoft