Peer to Peer Remote Copy or PPRC is a protocol to replicate a storage volume to another control unit at a remote site. Synchronous PPRC causes each write to the primary storage volume to be performed to the secondary volume as well, and the I/O is only considered complete when the update to both the primary and secondary volumes has completed.
Peer to Peer Remote Copy or PPRC is a protocol to replicate a storage volume to another control unit at a remote site. Synchronous PPRC causes each write to the primary storage volume to be performed to the secondary volume as well, and the I/O is only considered complete when the update to both the primary and secondary volumes has completed.
Source: Wikipedia "Peer to Peer Remote Copy" · CC BY-SA 4.0
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