I know the prevailing opinions on Arcserve/SPX/Imageworks/etc. This is about managing an infrastructure that I walked into and need to support -- I deal with Veeam/VSPC normally.
The issue is curious because it doesn't initially present as a problem with replication, but an issue with consolidation.
I get errors about how the system cannot remove files until they are old that the latest replicated file. Then I look at replication and often find a moderately large (100GB+) file hung while trying to replicate.
Turning on the advanced logging, all I can see really is that partway through the replication, the remote server (S3) sent a RST and the connection just stalls thereafter.
I have multiple clients where ImageManager is failing on the replication piece. I've scoured the net and haven't found much, but given the sheer number of cases that I'm seeing I suspect I can't be the only one.