Administrator’s Command Line Guide

Chapter 3. Accessing Storage Clusters via S3 Protocol
3.5.1 Bucket and Key Naming Policies
It is recommended to use bucket names that comply with DNS naming conventions:
• can be from 3 to 63 characters long,
• must start and end with a lowercase letter or number,
• can contain lowercase letters, numbers, periods (.), hyphens (-), and underscores (_),
• can be a series of valid name parts (described previously) separated by periods.
An object key can be a string of any UTF-8 encoded characters up to 1024 bytes long.
3.5.2 Improving Performance of PUT Operations
Object storage supports uploading objects as large as 5 GB per single PUT request (5 TB via multipart
upload). Upload performance can be improved by splitting large objects into pieces and uploading them
concurrently (thus dividing the load between multiple OS services) with multipart upload API.
It is recommended to use multipart uploads for objects larger than 5 MB.
3.6 Supported Amazon S3 Features
This section lists Amazon S3 operations, headers, and authentication schemes supported by the Acronis
Storage implementation of the Amazon S3 protocol.
3.6.1 Supported Amazon S3 REST Operations
The following Amazon S3 REST operations are currently supported by the Acronis Storage implementation of
the Amazon S3 protocol:
Supported service operations:
• GET Service
Bucket operations:
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