Purpose
The storage engine’s internals: local cache state, how many network hosts are
matched for placement, and write activity.
Panels
Cache — Cache Total · Cache Used · Cache Reserved · Cache Claimed ·
Cache Evictable (all bytes). The local cache staging data between clients and the
provider network.
Host Availability — Data Hosts Matched and Parity Hosts Matched (hosts). These
are the providers currently matched for erasure-coded placement (the design target
is 80 data + 40 parity shards per row across 120 hosts).
Write Activity — Upload Errors (total) · Write Calls (total) · Write Allocated
(bytes).
Reading it
- Matched hosts collapsing toward zero = the box can’t reach the provider network —
check connectivity and whether the install is claimed/onboarded. - Upload Errors trending up while Write Calls is flat → retries against a bad host
set; the network view on Network Overview helps. - Cache Used pinned at Cache Total plus slow writes = cache pressure; tuning lives
in Configure → Advanced → Cache & Read Behavior.
Screenshots
