< CDN
CDN/Hardware
This is an overview of our currently deployed and active cache hardware at the Traffic layer.
Hardware classes
We have purchased and retired multiple classes of server hardware over the years in staggered timeframes. In the general case we'll always have multiple overlapping classes of hardware as various warranty and support periods expire. These are the currently-active hardware configuration classes:
| Label | Model | CPU Type/Speed | Phys Cores | RAM | Cache storage | NIC speed, type, driver | DC Ops Config |
|---|---|---|---|---|---|---|---|
| F2 | Dell R440 | 2x Xeon Gold 5118 @ 2.3Ghz | 24 | 384 GB | 1x Samsung PM1725b 1.6TB NVMe (HHHL Card) | 10G, BCM57412, bnxt | F-10G, +storage card |
| F3 | Dell R440 | 2x Xeon Gold 5118 @ 2.3Ghz | 24 | 384 GB | 1x Samsung PM1725b 1.6TB NVMe (HHHL Card) | 10/25G, BCM57412, bnxt | F-10G, +storage card, +10/25G NIC variant |
| F4S | Dell R450 | 2x Xeon Gold 5318Y @ 2.1Ghz | 48 | 512 GB | 1x 6.4TB NVMe Card | 10/25G, BCM57414, bnxt | F (*) |
| F4D | Dell R450 | 2x Xeon Gold 5318Y @ 2.1Ghz | 48 | 512 GB | 2x 6.4TB NVMe Card | 10/25G, BCM57414, bnxt | F (*) |
- F4: The new DC Ops Config F from mid-2022 is exclusive to these edge cache roles, and thus our F4 config using it includes the storage cards and NIC upgrades as part of its base definition.
- F4S configs are being phased out early by upgrading them to F4D by adding the extra storage card. They should all be F4D well before we get to the next refresh of drmrs, at which point we'll probably just go back to calling them all F4.
Deployed hardware
Currently deployed hardware by data center and caching cluster.
| Data center | cache_text | cache_upload | total | Approx Next 5 Yr Refresh - FY (CY) |
|---|---|---|---|---|
| codfw | 8x F2 | 8x F2 | 16x F2 | FY25 Q3 (2025-Jan) |
| drmrs | 8x F3 | 8x F3 | 16x F3 | FY27 Q2 (2026-Oct) |
| ulsfo | 8x F4S | 8x F4D | 16x F4x | FY28 Q2 (2027-Oct) |
| eqsin | 8x F4S | 8x F4D | 16x F4x | FY28 Q2 (2027-Oct) |
| esams | 8x F4D | 8x F4D | 16x F4D | FY29 Q1 (2028-Jul) |
| eqiad | 8x F4D | 8x F4D | 16x F4D | FY29 Q2 (2028-Oct) |
| magru | 8x F4D | 8x F4D | 16x F4D | FY29 Q4 (2029-Apr) |
| Totals | 56 | 56 | 112 |
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