Hi,
[SOLVED] - Just had to wait. It seems that after finishing copying all the accounts, it just stays there for like 4 hours but it finally exits by itself 
I'm migrating some accounts from ZCS version 6.0.7 to version 8.0.7. Operations take a long time since there are like 10000 users distributed among 4 stores.
Backup is currently running (since yesterday) and one of the stores "seems" to be finished but monitor only shows this over and over again (for the last 2 hours).
--
Operation log path: none
Purge Account Checked: 0/??
Account scanned: 1933/1933
Account skipped(disabled by COS): 0
Account updated/new: 10/1933
Item scanned: 1158110
Item updated/new/unique: 0/1157454/653034
Since it's a task that takes quite a long time to do for our incremental migration operation (this should be the first full scan in the series), I started to worried and now I see in mailbox.log this warnings.
[zimbra@zstore3 log]$ cat mailbox.log | grep -i zx | grep -i error
2014-06-14 09:34:02,681 WARN [ZxLink Handler Thread] [] extensions - ZxLink Handler: Exception: com.zextras.lib.Error.PAPIStreamConnectionError: Connection Exception
2014-06-14 09:39:49,450 WARN [ZxLink Handler Thread] [] extensions - ZxLink Handler: Exception: com.zextras.lib.Error.PAPIStreamConnectionError: Connection Exception
2014-06-14 10:12:02,378 WARN [ZxLink Handler Thread] [] extensions - ZxLink Handler: Exception: com.zextras.lib.Error.PAPIStreamConnectionError: Connection Exception
2014-06-14 10:18:10,407 WARN [ZxLink Handler Thread] [] extensions - ZxLink Handler: Exception: com.zextras.lib.Error.PAPIStreamConnectionError: Connection Exception
2014-06-14 10:22:21,536 WARN [ZxLink Handler Thread] [] extensions - ZxLink Handler: Exception: com.zextras.lib.Error.PAPIStreamConnectionError: Connection Exception
2014-06-14 10:36:26,404 WARN [ZxLink Handler Thread] [] extensions - ZxLink Handler: Exception: com.zextras.lib.Error.PAPIStreamConnectionError: Connection Exception
(it seems to me that these warnings corresponds for every time I launch the zxsuite backup monitor command)
It looks that it is stuck since this happened (piece of mailbox.log)
2014-06-14 09:02:08,912 INFO [ZxBackup Thread] [] extensions - Backup Module: cleanAccount: cd88df62-d322-4495-8459-959563646e78
2014-06-14 09:02:08,955 INFO [ZxBackup Thread] [] extensions - Starting Account Scan: standby_sala_actes_pavello@vhebron.net
2014-06-14 09:02:15,869 INFO [ZxBackup Thread] [] extensions - Backup Module: cleanAccount: bd751a7a-63b7-4f26-aff9-7f4db4fe368a
2014-06-14 09:02:15,892 INFO [ZxBackup Thread] [] extensions - Writing server info backup.
2014-06-14 09:02:18,082 INFO [ZxBackup Thread] [] extensions - Removing items older than 30 days
The "purge account checked" is still 0/?? and that seems odd...
Should I be worried? Should I just keep waiting for the backup task to exit by itself? What would happend if I cancel the backup task now and after restoring the data in the dest server i just continue the incremental migration as always?
Thanks for your help!
Sebas