Move-mailbox, logs and sequence

Hello,

We have an Exchange CCR cluster and plan to move mailboxes from one storage group to a new storage group. Where are the logs generated - on both the source and destination storage groups on both the active and passive nodes?

I also want to use powershell but want to make sure I don't move the mailboxes one-at-a-time.

$mbs = Get-Content C:\scripts\mailboxes.txt

foreach ($mb in $mbs){move-mailbox -id $mb -TargetDatabase 'exchange1\storagegroup1\database1'-confirm:$false -domaincontroller dc1 -globalcatalog dc1 -baditemcount 10 -retrytimeout 05:00 -retryinterval 01:00 -maxthreads 8}

OR

import-csv c:\scripts\mailboxes.csv|move-mailbox -id $mb -TargetDatabase 'exchange1\storagegroup1\database1'-confirm:$false -domaincontroller dc1 -globalcatalog dc1 -baditemcount 10 -retrytimeout 05:00 -retryinterval 01:00 -maxthreads 8

Thanks,

Robert