Filter
Top Products
Chapter 4 StorEdge File Replicator 4-5
architecture provides clear advantages over Checkpoint or Snapshot Mirroring, in
that the state of the Mirror's data is typically only seconds behind that of the
Master's filesystem.
Extensive effort has gone into ensuring not only that the performance of the Mirror
does not lag that of the Master, thereby maintaining the Mirror in a high state of
synchronization with the Master, but that data integrity - including write ordering -
is preserved (Figure 4-2 on page 4-5).
FIGURE 4-2 Write ordering on the Mirror
Figure 4-3 on page 4-6 depicts a scenario where TXID 4 is received prior to TXID 3,
either because TXID 3 was lost, during transmission or for some other reason.