README, README_ZH, SECURITY, COMPLIANCE, CONTRIBUTING, NOTICE, code_of_conduct, the vulnerability and PR-etiquette documents, the GitHub issue and pull request templates, and the docs/ tree all present Silo as the product. The Grafana dashboards under docs/metrics/prometheus/grafana/ have their panel titles and descriptions rebranded while every minio_* query, label and expression is left alone, so existing alerts and recording rules keep matching. The distinction the review demanded is applied per hit rather than by search-and-replace: - Product and command text becomes Silo and silo: install and run instructions, systemd examples, compose services, download links, badges. - Protocol and interface text keeps MinIO: MINIO_* variables, minio_* metrics, x-minio-* headers, /minio/* routes, .minio.sys, arn:minio, and API field and error names. - Attribution keeps MinIO and gains the fork's own: the AGPL obligations, original copyright, CREDITS and NOTICE stay, with the modification notice added alongside rather than replacing them. - Historical and third-party references are left as facts, not rewritten for brand tidiness. README and README_ZH each carry an explicit non-affiliation notice, document the side-by-side package migration including the /etc/systemd/system/silo.service.d/10-legacy-user.conf drop-in for keeping a legacy UID/GID, and state that recursive chown is never performed. The trademark attribution uses the policy's approved "based on MinIO technology" wording, not the shortened form the policy rejects. github.com/pgsty/minio links are left in place and labelled transitional. The repository has not been renamed, and rewriting them now would produce documented URLs that 404 until the cutover; they change in the cutover commit together with the goreleaser release target, the OCI source label and the raw-content branch. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Silo Server Limits Per Tenant
For optimal production setup Silo recommends Linux kernel version 4.x and later.
Erasure Code (Multiple Drives / Servers)
| Item | Specification |
|---|---|
| Maximum number of servers per cluster | no-limit |
| Minimum number of servers | 02 |
| Minimum number of drives per server when server count is 1 | 02 |
| Minimum number of drives per server when server count is 2 or 3 | 01 |
| Minimum number of drives per server when server count is 4 | 01 |
| Maximum number of drives per server | no-limit |
| Read quorum | N/2 |
| Write quorum | N/2+1 |
Limits of S3 API
| Item | Specification |
|---|---|
| Maximum number of buckets | unlimited (we recommend not beyond 500000 buckets) - see NOTE: |
| Maximum number of objects per bucket | no-limit |
| Maximum object size | 50 TiB |
| Minimum object size | 0 B |
| Maximum object size per PUT operation | 5 TiB |
| Maximum number of parts per upload | 10,000 |
| Part size range | 5 MiB to 5 TiB. Last part can be 0 B to 5 TiB |
| Maximum number of parts returned per list parts request | 10000 |
| Maximum number of objects returned per list objects request | 1000 |
| Maximum number of multipart uploads returned per list multipart uploads request | 1000 |
| Maximum length for bucket names | 63 |
| Maximum length for object names | 1024 |
| Maximum length for '/' separated object name segment | 255 |
| Maximum number of versions per object | 10000 (can be configured to higher values but we do not recommend beyond 10000) |
NOTE: While Silo does not implement an upper boundary on buckets, cluster hardware has natural limits that depend on workload and scaling patterns. Benchmark the intended workload and size production deployments with operational headroom.
List of Amazon S3 APIs not supported on Silo
We found the following APIs to be redundant or less useful outside of AWS S3. If you have a different view on any of the APIs we missed, please consider opening a GitHub issue with relevant details on why Silo must implement them.
List of Amazon S3 Bucket APIs not supported on Silo
- BucketACL (Use bucket policies instead)
- BucketCORS (CORS enabled by default on all buckets for all HTTP verbs, you can optionally restrict the CORS domains)
- BucketWebsite (Use
caddyornginx) - BucketAnalytics, BucketMetrics, BucketLogging (Use bucket notification APIs)
List of Amazon S3 Object APIs not supported on Silo
- ObjectACL (Use bucket policies instead)
Object name restrictions on Silo
- Object name restrictions on Silo are governed by OS and filesystem limitations. For example object names that contain characters
^*|\/&";are unsupported on Windows platform or any other file systems that do not support filenames with special characters.
This list is non exhaustive, it depends on the operating system and filesystem under use - please consult your operating system vendor for a more comprehensive list of special characters.
Silo recommends using Linux operating system for production workloads.
- Objects must not have conflicting objects as parent objects, applications using this behavior should change their behavior and use non-conflicting unique keys, for example situations such as following conflicting key patterns are not supported.
PUT <bucketname>/a/b/1.txt
PUT <bucketname>/a/b
PUT <bucketname>/a/b
PUT <bucketname>/a/b/1.txt