Is it possible to change the repo backing a searchable snapshot without interruption?

Hi All,

I'm trying to find out if it is possible to change the backing repository of a searchable snapshot?

Looking at the docs, it doesn't appear to mention this.

Example of what I'm trying to do:

Have an index, index_a, fully mounted as a searchable snapshot to repository, snapshot_repo_a . I want to instead have index_a use snapshot_repo_b as its backing repo. During this transition between repositories, I don't want there to be an interruption to the usability of index_a.

Is the above possible?

I thought about maybe it just requires changing the ILM policy to use the new repository, but since there isn't much docs around this, I don't know if this is the correct way to do this type of action.