Data center failover test — East Coast facility results

From Maria Torres <m.torres@efemex.com> To f.lackey@briskhaven.com, r.holmes@efemex.com CC ops@efemex.com, infrastructure@efemex.com Date March 18, 2026 at 9:15 AM EST

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Team,

The scheduled failover test for our East Coast facility completed at 06:45 UTC this morning. I'm pleased to report that all primary services transferred to the secondary infrastructure within the target window. Below is a summary of the results.

Test Parameters

Simulated failure: Complete power loss at primary facility
Failover target: Secondary facility (Ashburn, VA)
RTO target: 120 seconds
RPO target: Zero data loss

Results

Mail delivery failover: 47 seconds (target met)
IMAP service restoration: 62 seconds (target met)
WebMail interface: 85 seconds (target met)
Data integrity check: Zero message loss confirmed
DNS propagation: Completed within 90 seconds via anycast

One observation worth noting: during the IMAP failover, we saw a brief spike in connection retry traffic from clients with aggressive reconnect intervals. This didn't impact service availability but did create a load spike on the secondary facility's load balancers. I've included a detailed analysis in the attached report along with recommendations for client-side connection backoff tuning.

The full test report, including logs and monitoring dashboards, is attached. I recommend we schedule the West Coast facility test for the week of March 24.

Maria Torres

Infrastructure Operations Lead
FMX LLC

Attachments (2)

FMX-DR-Test-EastCoast-2026-03-18.pdf 1.1 MB

monitoring-dashboard-export.xlsx 89 KB

Earlier in this thread

Fred Lackey Mar 17, 4:15 PM

Maria — confirmed. We're ready for the East Coast failover test tomorrow morning. Please proceed with the scheduled 06:00 UTC window. I've notified the operations team to be on standby.

Maria Torres Mar 17, 2:30 PM

Team — a reminder that the East Coast facility failover test is scheduled for tomorrow, March 18 at 06:00 UTC. This is a full-simulation test: we will be cutting power to the primary facility and validating automatic failover to the secondary site in Ashburn. Estimated test duration is 30 minutes. Please confirm readiness.