Hi Jim,

Thanks for the reply. I come back to work on AVS today. Here are the latest 
results and some thoughts.

1) When changes are made to the secondary, 
a. SNDR is in logging mode
b. primary is unmounted using zpool export
c. secondary is mounted using zpool import

2) Data changes are made on secondary. The data will be synchronized back to 
the primary later.

3) After I export the ZFS at secondary, SNDR is put in reverse synchronization 
mode. I assume it takes some time to do the update, which I constantly check 
using dsstat.

4) I wait until dsstat reports no activity. Assuming zpool import will receive 
corrupted data if the synchronization is still in place, I manually place SNDR 
into logging mode before issuing zpool import.

5) Unfortunately corruption still occurs which lead me to two possible reasons
a. data corruption on the network transfer
b. data incompatibility on the ZFS

Here are my questions,
1. Does AVS ensure data integrity during replication?
2. Does AVS need to convert data from x86 to SPARC during the replication?


Regards,
Joseph
 
 
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