Calculate disk space requirement for increasing replicas

Im planning to increase replication of some of our indices and trying to understand the additional disk required for this. Looking at the test index below(1p:2r, store.size = 45mb, would it be accurate to conclude that I would need 15mb more in the cluster if I increase replication by 1 and 30mb more if I increase it by 2 ?

health status index                                              uuid                   pri rep docs.count docs.deleted store.size
green  open   test_index_XXXXXXXXX                   AvRInVVWSnOWvfIQGNxD-g   1   2      55937            3         45             15

I would allow more just in case, but yes that's an accurate summary.

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Thank you :slight_smile:

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