Zero-Downtime Microsoft 365 Migration for a Healthcare Network
Multi-facility healthcare network
The Challenge
The client relied on an aging on-premise email and file server infrastructure that was increasingly difficult to secure and maintain, while clinical staff needed uninterrupted access to email and patient-related documentation at all times.
The Solution
ZumarX designed a phased Microsoft 365 migration plan, including mailbox and file migration, conditional access and MFA rollout, and staff training, executed in off-peak windows to avoid any disruption to clinical operations.
The Challenge
Clinical and administrative staff across multiple facilities depended on a legacy on-premise email and file server environment that was expensive to maintain and increasingly exposed to security risk, but any migration had to avoid disrupting round-the-clock clinical operations.
The Approach
ZumarX planned a phased migration to Microsoft 365, migrating facilities in stages during low-usage windows, with parallel mailbox validation before cutover. Conditional access policies and multi-factor authentication were rolled out alongside staff security awareness training.
The Results
The migration completed with zero unplanned downtime and no data loss across any facility. Post-migration, phishing-related helpdesk tickets dropped by 60% thanks to improved email filtering and staff awareness training delivered as part of the engagement.
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