Unlike most other edge sites, eqsin and ulsfo have 6 machines per cluster, not 8. ulsfo sees much less traffic, so this is fine there; however, eqsin has become a sizable fraction of our overall traffic at its daily peak: approx as loaded as eqiad's peak; approx 1/3rd of esams peak; and approx 1/3rd of global rps at eqsin daily peak.

We should probably increase from 6->8 machines for upload and text in eqsin.