HPE 3PAR 数据保护方案.pdf

HPE 3PAR 数据保护方案 Async Streaming 3PAR Remote Copy Asynchronous Streaming Cache-based replication architecture Primary Secondary 1 2 3 Async Streaming Replication 4 Low RPO (seconds) Low RTO (1+ minutes) 1 Writes issued from host server are 2 An acknowledgement is sent to the stored in local array’s cache (after host resulting in low latency from the local cache mirroring) host to the system 3 Writes cache pages are coalesced 4 Write IO is then replayed in order on into tickets that describe IO order and the secondary system to ensure replicated to the second system consistency with primary 2 3PAR 的复制 1:1 Configuration Protect and share data Sync RC and/or Async Periodic RC Any 3PAR arrays • Smart