SAA-C03 Q52 · Migration

Question

A company needs to migrate a MySQL database from an on-premises data center to AWS within 2 weeks. The database is 180 TB in size. The company cannot partition the database. The company wants to minimize downtime during the migration. The company's internet connection speed is 100 Mbps. Which solution will meet these requirements?

Accepted Answer

**Option A is correct** because it addresses all three critical constraints simultaneously:

**1. Data Volume (180 TB) vs. Bandwidth (100 Mbps):**
- At 100 Mbps, transferring 180 TB would take approximately: 180 TB × 1024 GB × 8 bits / (100 Mbps) = ~166 days. This far exceeds the 2-week deadline.
- **Snowball Edge Storage Optimized** provides up to 80 TB usable capacity. Multiple devices can be ordered (you'd need ~3 devices for 180 TB). Physical shipping bypasses the bandwidth bottleneck entirely.

**2. Timeline (2 weeks):**
- Snowball Edge devices typically ship within a few days, data loading takes a few days, and return shipping takes a few days — fitting within the 2-week window.

**3. Minimize Downtime:**
- **AWS DMS with SCT** enables a two-phase approach:
  - **Phase 1 (Full Load):

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