Angola Cables operates critical telecom infrastructure across sub-Saharan Africa. Their SQL Server cluster — running the core data management layer for network operations — needed to be migrated between cloud environments without service interruption and without touching the production VMs.
A 2-instance cluster with 3 disks per instance meant 6 volumes that had to be transferred consistently. Any inconsistency between disk states would mean a failed migration and potential data loss.
| Workload type | SQL Server cluster (enterprise) |
| Instances migrated | 2 |
| Disks per instance | 3 volumes |
| Total disks transferred | 6 |
| Total duration | 97 minutes |
| Data integrity | 100% verified via checksum |
| Migration errors | 0 |
| Agents installed | 0 |
| Post-migration cleanup | Automatic (all workers destroyed) |
✓ 97 minutes from job start to both instances running in the target environment. The SQL Server cluster came up healthy with no manual intervention required.
Z-Move migrated both instances as a coordinated job. The parallel streaming engine transferred all 6 disks simultaneously — 3 per instance — maximizing available bandwidth. Checksum verification on each volume confirmed consistency before the target VMs were powered on.
Because the migration is agentless, the source SQL Server instances continued running throughout the process. Angola Cables' team could plan a brief cutover window at a time of their choosing, rather than scheduling emergency maintenance.
SQL Server migrations are often slow and risky with traditional agent-based tools. Z-Move's approach — operating entirely at the cloud API and disk level — means the database engine itself is never touched. The result is a faster, safer migration that respects the workload's integrity constraints.
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