Traffic cache hardware

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This is an overview of our currently deployed and active cache hardware at the Traffic layer.

Deployed 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 CPU Type/Speed Phys Cores RAM Storage
A 2x Xeon E5-2680 0 @ 2.70GHz 16 96 GB 2x Seagate ST9250610NS 250GB HDD
B 2x Xeon E5-2640 0 @ 2.50GHz 12 96 GB 2x Intel M320 600GB SSD
C 2x Xeon E5-2680 0 @ 2.70GHz 16 192 GB 2x Intel S3700 400GB SSD
D 2x Xeon E5-2680 v3 @ 2.50GHz 24 256 GB 2x Intel S3700 400GB SSD
E 2x Xeon E5-2650 v4 @ 2.20GHz 24 384 GB 2x Intel S3710 800GB SSD

Deployed Server Hardware by Datacenter and Cluster

Datacenter text upload maps misc total
eqiad 8xC 7xC + 4xD 4xC 4xC 23xC + 4xD = 27
codfw 8xD 10xD 4xD 4xD 26xD = 26
esams 8xD 12xD 4xB 4xB 20xD + 8xB = 28
ulsfo 6xC 6xC 4xC 4xA 16xC + 4xA = 20
total 14xC + 16xD = 30 13xC + 26xD = 39 4xB + 8xC + 4xD = 16 4xA + 4xB + 4xC + 4xD = 16 4xA + 8xB + 39xC + 50xD = 101
future 6xE 6xE 0 0 6xE + 6xE = 12

future above is our new proposed per-site config, starting with ulsfo's hardware refresh and the initial asia deployment.