2.6 KiB
2.6 KiB
Storage architecture with Garage
Attendees: Koen, Valentin, Nicolas
- (some historical/technical background discussion on object storage and file systems)
- Koen: 1.5 y ago looked into available FOSS solutions, only minio and Garage
- Garage was NGI-funded and located in France and responsive
- Targeted at self-hosting, minimal hardware requirements
- Ideally would have used a W3C standard protocol, but "S3-compatible" is the closest thing
- Garage was NGI-funded and located in France and responsive
- Should have a few big, replicated, well-monitored storage clusters instead of many small ones
- Currently have 3x4Ux32drive storage boxes; would replicate them over 3 locations
- (discussion of ZFS performance characteristics)
- Koen presented a storage architecture based on ZFS
- Main feature (not clear on the details) is to add a NVMe-based primary write target to Garage
- e.g. 45TB NVMe + (2x?) 560 TB (1PB raw) HDD
- According to independent reviews[citation needed] Garage handles this sort of setup better than minio
- Main feature (not clear on the details) is to add a NVMe-based primary write target to Garage
- Requirement estimates:
- mastodon.nl has 50k users, 5k active users, 200GB database (ever-growing, launched Nov 2022), 1.5 TB of files
- Hot data is <~5 days old, most of the rest is never looked up
- Most of the usage profiles intel will have to come from our university partners
- Will scale the physical storage to the actual write capacity requirements at the spindle layer (add more vdevs as needed)
- mastodon.nl has 50k users, 5k active users, 200GB database (ever-growing, launched Nov 2022), 1.5 TB of files
- Additional object storage replication can be configured at the S3 (Garage) layer by setting another target at a different provider
- We expect this to happen rarely; replication will likely take a lot of performance out of the application
- By default we already have 3-way replication internally (i.e. 3 RAIDZ2 machines per Garage instance)
- There are already three sites in NL to rack the hardware
- This is why we need to connect NetherLight so NORDUnet universities have a low-latency connection
- Koen: Ideally at the end of next year you'd have three sites set up with machines to run Proxmox on and the storage machines, and run a NixOS ISO to set everything up and then control it via NixPanel
- Nicolas: We should talk to Garage developers, because they run it on NixOS but not sure how exactly
- Koen: Ideally before FOSDEM 2025
- Valentin: Need reference documentation for the storage architecture discussed (so we can point to something when making implementation decisions), and a slide deck to tell the story of how it came into being (as a sales device for the project), and eventually derive business plans for hosting providers and operators from that
Hand-drawn sketches posted to the internal private repo