GCP Cloud Storage provides bucket location configuration for
speed, availability, and meeting your compliance,
etc. However, this configuration may affect File
Storage Security performance.
We will describe the three location configuration options and
make some recommendations.
Regional
A bucket with a regional setting means its data
is stored in a specific geographic place. This
setting provides the best speed and lower data
storage cost, however, it provides limited
redundancy.
Dual-region
A bucket with a dual-region setting means its
data in it is stored in a pair of geographic
places, for example, London and Frankfurt. This
setting provides not only the best speed but also
cross-region redundancy.
Multi-region
A bucket with multi-region settings means its
data is stored in two or more geographic
locations, for example, the United States. This
setting provides the highest availability.
However, it comes with a price of data storage
cost and lower speed. By our experiment, we
discourage to use this setting especially on
scanning large size files (e.g., 1-GB size
files).
Recap
If there is no consideration of compliance, we
recommend that you use one of the following bucket
location settings:
- regional
- dual-region