Configuration Process

SDRS provides server-level protection (RPO = 0) if production site applications cannot be recovered within a short period of time due to force majeure (fire and earthquake) or device faults (faulty software and hardware). Storage-layer synchronous replication provides cross-AZ DR protection to meet data consistency requirements. If the production site fails, you can quickly restore services at the cross-AZ DR site with a few clicks.

Figure 1 shows the cross-AZ DR configuration process.

When you create a protected instance, the system creates a replication pair for the disks of the servers at the production and DR site by default.

Figure 1 Cross-AZ DR configuration process