The following are a few limitations to consider while using IONOS S3 Object Storage:

  • Access keys: A user can have up to five access keys.

  • Storage size: The minimum storage size available is 1 Byte of data and is extendable to a maximum storage of petabytes.

  • Bucket naming conventions: Only buckets for static website hosting can use dots (.) in the bucket names. For more information, see bucket Naming conventions.

  • Bucket count: A user can create up to 1000 contract-owned buckets and 500 user-owned buckets. For more information, see Bucket Types.

  • Bucket Policy size: The maximum allowed Bucket Policy size for a contract-owned bucket is 1 MiB, and for a user-owned bucket is 20 KiB.

  • Object size: The maximum allowed object size is 5 TiB.

  • Object name length: The maximum allowed length of the folder path, including the file name, is 1024 characters.

  • File upload size: A file upload size cannot exceed 5 GiB (5368709120 bytes) for contract-owned buckets and 4,65 GiB (5000000000 bytes) for user-owned buckets. If you have a single file exceeding this limit, you can bypass it using multi-part uploads. CLI tools such as AWS CLI and graphical tools such as Cyberduck automatically handle larger files by breaking them into parts during uploading.

  • Bandwidth: Each connection is theoretically capped at approximately 10 G per region. However, remember that this is a shared environment. Based on our operational data, achieving peak loads up to 2x7 G is feasible by leveraging parallel connections. However, this is on a best-effort basis and without any guaranteed Service Level Agreement (SLA).

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