I have a Terrastation TS51210R deployed for a client with a folder that replicates to S3. This folder has about 350GB of data in it and it was working fine until we did some maintenance and turned the switch off that connects to the NAS unit. It was offline less than 10 minutes. Ever since then the sub folder containing most of the data has been inaccessible. When it is clicked on Windows gives an error saying it is unavailable and that the location might have been moved or deleted.
I called Buffalo support a few times, first time they tell me to reboot it and that it will rescync in a few minutes and come back online. Rebooted with no change, call back an hour later and they tell me that it may take hours to resync and that I shouldn't reboot as that will start the process over again. Well it's been 3 days and the folder is still inaccessible and when I talked to someone yesterday they claimed that it was my fault for disconnecting the network while it was syncing to S3 and that there has to be a failover internet connection and to make sure the unit never goes offline or this will happen again. They have no idea how long it will take to sync again and give me access to the data. All the data is showing correctly in the bucket in S3. Creating new folders on the NAS syncs to S3 immediately as well in the same S3 bucket.
This seems insane, does this S3 sync not work properly or has anyone actually found a way to make this work for large directories? At some point there will be several terabytes on this unit that will need to be backed up to S3. If I have to worry that any network glitch will take their data offline for days or even weeks then this is a bogus feature that shouldn't even be offered.