# Tigris Consistency Questions

Hi, I am evaluating using Tigris as a distributed storage layer for my application. I plan on storing data in multiple regions globally and will be frequently ‘updating’ objects (new put over already existing objects). I have a few questions about the specifics of Tigris’ multi‑region consistency model.

1. What is the atomicity of a put operation to multiple regions? For example, I try to update an object in the `iad` and `fra` regions. For whatever reason, the put to `fra` fails. _Could_ the `iad` put still be executed? Will the put request report a failure?

2. If the `iad` put still goes through, what happens if I then make a get request in the `fra` region with the `x-tigris-cas: true` header set? Would the request get routed to the `iad` region with the stored data that’s been more recently updated? Would Tigris _eventually_ update the existing/outdated stored object in the `fra` region?

3. What is the default behavior for a get request with the `x-tigris-cas: true` header when there are multiple copies of data stored? Will it get routed to the closest region with the object stored?