Scheduled maintenance · ChiselPort Status

In progressDatabase storage expansion

Started 2026-06-12 · 12:10 UTC · expected duration ~2h · change CHG-2026-06-1218

We are expanding storage on the primary cluster to support higher write throughput. The API will return 503 during this window. No customer data is affected. Replication is paused for the duration of the migration.

Timeline Affected services Regions

11:55 — preflight checks passed, all green

12:00 — backup verified: snap-2026-06-12-1155 hash ok

12:10 — entered maintenance state, traffic draining

12:14 — replication paused on follower-a / follower-b

12:22 — volume snap-2026-06-12-1218 attached to primary

12:36 — data copy 37% complete · 1.4 TB / 3.8 TB

12:51 — data copy 58% complete · 2.2 TB / 3.8 TB

13:02 — short blip on follower-c, recovered automatically (no impact)

13:14 — data copy 81% complete · 3.1 TB / 3.8 TB

API gatewayoffline

Dashboardoffline

Write APIoffline

Read API (replicas)degraded

Webhook deliveryqueued

Static / CDNhealthy

Status pagehealthy

eu-west-1maintenance · primary

eu-north-1read-only · replicas

us-east-1read-only · replicas

ap-southeast-1read-only · replicas

sa-east-1read-only · replicas

af-south-1read-only · replicas

CompletedPre-checks and snapshot

11:55 UTC — 12:10 UTC · duration 15 min

All preflight checks passed. Backup taken. Verification hash matched expected value. Followers acknowledged the new write lock cleanly.

CompletedEdge cache warmup

2026-06-11 · 23:00 UTC — 23:42 UTC

Pre-warmed the CDN edge caches in anticipation of the maintenance window. 4 762 origin requests served, 99.4% cache hit ratio achieved.

CompletedCustomer notification

2026-06-08 · sent 14 200 emails / 6 800 in-app banners

Maintenance window announced 96 hours in advance to all subscribed customers. Open rate 71%, no opt-outs above baseline.