Storage Replica Test Report

The test simulated writing a series of 2MB size writes over SMB protocol from the source computer to the destination data disk. The test measured the time required for the write requests to complete at the destination data volume, thereby obtaining a ballpark estimation for the time required for initial synchronization of the entire source data volume. This is only an estimate and actual data transfer time may vary. Estimates may vary greatly, depending on when the test was run and occasionally produce inaccurate figures. Factors that affect the test results include network performance for the duration of the test run, noise, packet loss, resources available on source and destination computers etc.

Shows a pictorial view of the performance counters obtained from the destination computer for the initial sync time estimation test.

The test simulated a sequence of remote write requests over SMB to the destination log disk. The rate of remote write requests were coordinated to be exact number of data bytes as measured at the source data volume.

The table below shows the distribution of average write latencies as measured from the source computer for all simulated writes to source log and destination log.