more in-depth Garage review (team#40478)

The more I look at this project, the more interesting I find it.

policy/tpa-rfc-56-large-file-storage.md

@@ -207,8 +207,6 @@ object storage options:
  * [openio][] mentioned in one of the GitLab threads, not evaluated,
    python, main website down: https://www.openio.io/
    (`SSL_ERROR_NO_CYPHER_OVERLAP`)
- * [garage][] is another alternative, rust, docker and binaries, not
-   in debian
 
 in general: i think Ceph is a great option that ticks a lot of the boxes here:
 
@@ -243,7 +241,6 @@ trash its own backups). we could build this with ZFS/BTRFS replication, again.
 
 [minio]: https://min.io/
 [openio]: https://www.openio.io/
-[garage]: https://garagehq.deuxfleurs.fr/
 
 ## TODO: triage Ceph war stories from GitLab and SO
 
@@ -357,6 +354,49 @@ some storm brewing there.
 [this hacker news discussion]: https://news.ycombinator.com/item?id=32148007
 [licensing dispute]: https://blocksandfiles.com/2023/03/26/we-object-minio-says-no-more-open-license-for-you-weka/
 
+## Garage
+
+[Garage][] is another alternative, written in Rust. They provide a
+[Docker image](https://hub.docker.com/r/dxflrs/garage) and [binaries](https://garagehq.deuxfleurs.fr/download/). It is not packaged in Debian.
+
+It was written from scratch by a french association called
+[deuxfleurs.fr][]. The first release was funded by a [NLNet grant](https://nlnet.nl/project/Garage/)
+and has been [renewed for a year in May 2023][].
+
+[garage]: https://garagehq.deuxfleurs.fr/
+[deuxfleurs.fr]: https://deuxfleurs.fr/
+[renewed for a year in May 2023]: https://plume.deuxfleurs.fr/~/Deuxfleurs/NLnet%20soutient%20Garage%20%26%20Aerogramme
+
+Features:
+
+ * apparently [faster than Minio on higher-latency links](https://garagehq.deuxfleurs.fr/documentation/design/benchmarks/) (100ms+)
+ * [Prometheus monitoring](https://garagehq.deuxfleurs.fr/documentation/cookbook/monitoring/) (see [metrics list](https://garagehq.deuxfleurs.fr/documentation/reference-manual/monitoring/)) and Grafana
+   dashboard
+ * [regular releases](https://git.deuxfleurs.fr/Deuxfleurs/garage/releases) with actual release numbers, although not yet
+   1.0 (current is 0.8.2, released 4 months ago as of June 2023)
+
+Missing and downsides:
+
+ * possibly slower (-10%) than MinIO in raw bandwidth and IOPS,
+   according to [this self-benchmark](https://garagehq.deuxfleurs.fr/blog/2022-perf/)
+ * [purposefully no erasure coding](https://news.ycombinator.com/item?id=30257057), which implies full data
+   duplication across nodes
+ * designed for smaller, "home lab" distributed setups, might not be
+   our target
+ * [no built-in authentication system](https://git.deuxfleurs.fr/Deuxfleurs/garage/issues/546)
+ * [non-goals](https://garagehq.deuxfleurs.fr/documentation/design/goals/) also include "extreme performance" and features
+   above the S3 API
+ * uses a CRDT and Dynamo instead of Raft, see [this discussion for
+   tradeoffs](https://news.ycombinator.com/item?id=30257041) and [the design page](https://garagehq.deuxfleurs.fr/documentation/design/internals/)
+
+See also their [comparison with other software](https://garagehq.deuxfleurs.fr/documentation/design/related-work/#existing-software) including MinIO. A
+lot of the information in this section was gleaned from [this Hacker
+News discussion](https://news.ycombinator.com/item?id=30256753) and [this other one](https://news.ycombinator.com/item?id=33853539).
+
+## SeaweedFS
+
+https://github.com/seaweedfs/seaweedfs
+
 ## Kubernetes
 
 In Kubernetes, storage is typically managed by some sort of operator