1TB shards are not recommended.
A massive shard is like a massive sofa, it might fit in the destination room, and look impressive once there, but you need move everything else out of the way, and getting it through the door is a PITA. More smaller sofas are almost always better.
btw, I like ansible, it’s a great tool. But be careful not to fall into the “whatever the problem is, the only tool I will use is my hammer” trap.