Administrator’s Command Line Guide

Table Of Contents
Chapter 3. Accessing Acronis Storage Clusters via S3 Protocol
are to return the new state after the write has been completed. Readers can observe the old state for an unde-
fined period of time until the write is propagated to all the replicas (copies). This is very important for storage
availability as geographically distant data centers may not be able to perform data update synchronously (e.g.,
due to network issues) and the update itself may also be slow as awaiting acknowledges from all the data repli-
cas over long distances can take hundreds of milliseconds. So eventual consistency helps hide communication
latencies on writes at the cost of the probable old state observed by readers. However, many use cases can
easily tolerate it.
3.1.1 Object Storage Infrastructure
The infrastructure of Acronis Object Storage consists of the following entities: object servers, name servers,
S3 gateways, and the block level backend.
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