Let's assume that a software-defined storage system provides extremely reliable filesystems to be used as devices in Swift rings.
For the sake of reliability, this underlying storage can be considered to provide data integrity and availability in 100% of the cases (strong assumption, but helpful to get to the point). Performance in this context is really not a concern. To avoid reducing the storage efficiency, an idea could be to use swift with number of replicas set to 1 in this context. My question is the following: when performance doesn't matter and reliability is taken care of "below" swift (so swift will always manage to read/write an object as devices will always be consistent and available), are there other aspects that should be considered if swift runs with a replica counter of 1? Many thanks, Vincenzo.
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