AEM with TarMK Cold Standby

Hi everyone,

we've tried to run AEM with a TarMK Cold Standby deployment but we've met some issues/questions:

1. Is there a possibility to get an concrete information about the ending of the synchronization process?
2. In the example logs (http://docs.adobe.com/docs/en/aem/6-0/deploy/recommended-deploys/tarmk-cold-standby.html#First%20time%20synchronization) there are received segments with size 262144 but we only face segments with size 4752. Why is our sync. process so slow?
3. Problem: the synchronization doesn't really finish or is too slow - so our Standby isn't of any use for us because the failover procedure also doesn't work.

Does anyone have the same issues or any solutions for us?

Thanks in advance!