You can find the pieces in the corresponding satellite folder.
Folder names are listed here: Satellite info (Address, ID, Blobs folder, Hex)
The first 2 letters of the piece ID are the subfolder, the rest is the filename. If they are missing, you lost some files.
You can also grep the logs for the piece ID to see what happened to that specific piece in the past. However, unless you have redirected logs to a file, there likely won’t be enough history to find everything.
Also check your file system for issues.
Downtime doesn’t count towards disqualification.
No, down time has nothing to do with it. You have either lost or corrupted files, as the log lines show. What has changed is that nodes up to 10-15% data loss used to be able to survive for a long time. This was never the intention and is no longer the case. 2% is acceptable, beyond that it gets dicey and disqualification can happen. Beyond 4% will lead to definitive disqualification.
My guess is that your data loss was already larger than it should have been and you got caught in this update. It sucks, but you can keep running the node on the other satellites and I’m sure that 1TB will fill back up. It isn’t really recommended to remove data manually, but you can look up the folder with the link I posted previously. Be very careful to remove the right folder though. Also check the scores for other satellites to see if they show dips. Unlike before, that should be visible for much longer now. Anything below 100% on audit score or suspension score means there are issues with your node.