How many (server side) errors to expect?

i have had to contact idrive a few times. i found their level1 techs was ok, but not great.
but when the issue(s) were raised to level2 techs, i got much better answers.

idrive is a stripped down version of s3 standard

check out my rant about idrive
https://forum.rclone.org/t/idrive-e2-raising-prices-24/47910

in my case, i need confidence that in a disaster, i can quickly download the files. idrive transfer speeds can be slow.
for each location, there is a local backup server.
on top of that:

  1. keep recent backups, mostly veeam and 7zip, in wasabi
    in my testing, nothing is faster than wasabi. i have a topic or two about that. and they support sse-c encryption, full s3 policies, MFA delete and temporary session tokens.
  2. keep older backups, that i never plan to download, in aws s3 deep glacier, at $1.00/TiB/month

and i like hetzner storagebox, very good pricing and supports a number of protocols.
when using sftp, rclone can use checksums to verify file transfers.