Dave Warren wrote:
> In message <> Pavlos Gerardos
> <> was claimed to have wrote:
>
>> I prestaged 2 servers with the data i wanted to copy from a NAS (which
>> is to be removed from the network).
>> It's ~750GB of data.
>> One copy was made to Srv1 with robocopy and the other (to Srv2) was made
>> one day earlier with simple windows copy...
>> There is a difference of ~1GB of data (~1000 files).
>>
>> The primary server should be Srv1, which holds the most up-to-date and
>> full data.
>>
>> I created a replication group for the two folder targets some 6 hours
>> ago and then made 4-5 health reports.
>>
>> All of them show a warning for Srv2 that "This member is waiting for
>> initial replication for replicated folder data".
>> In the following lines i can see now ~400000 Backlogged Sending &
>> Receiving Transactions and ~53000 Files Received...
>> And these numbers are increasing hour to hour...
>>
>> It's definitely not working ok....
>>
>> Any ideas on what should i do?
>
> Wait.
>
> Since you copied the data using different methods, not all of the
> meta-data will be identical, since the meta-data isn't identical, the
> file hashes don't line up exactly, so DFS-R goes through conflict
> resolution.
>
> It will take DFS-R some time to resolve the conflicts. DFS-R is smart
> enough to notice that the content itself is identical though, so it will
> generally be faster then just letting DFS-R copy out all the files
> itself.
>
> Under 2003 R2 it could take days for the two servers to sync up with
> 750GB of data, under 2008 I'd expect DFS-R to finish in a day or so
> assuming the file content is identical, longer if the file content needs
> to be replicated. User activity will slow the process considerably.
>
> Check your staging areas sizes, I'd probably bump them to at least 16GB
> during the initial sync (especially on 2008, which handles larger
> staging areas more efficiently then 2003 did), then set them to more
> sane limits later.
>
> Honestly though, the initial replication just takes time, little can be
> done to speed it up, and whatever you do, don't try and help it along
> once replication starts, you'll just generate more work for the system
> trying to resolve your changes.
Thank you Dave for the very helpful reply.
You were right about the time it would take to sync the files.
It eventually finished yesterday noon, after almost 24hours.
The main problem for me remains though:
There is no serious level monitoring regarding the initial replication
status, so you can't be sure if everything works ok.
I just had to wait for a whole day without even knowing if i had to
restart or stop or do something else...
I really think MS should do some serious work on this issue.
Anyways, thanks again for helping me out.
Pavlos
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