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- Q7160413 subject Q8529929.
- Q7160413 subject Q8818551.
- Q7160413 abstract "Peer to Peer Remote Copy or PPRC is a protocol to replicate a storage volume to another control unit in a remote site. Synchronous PPRC causes each write to the primary volume to be performed to the secondary as well, and the I/O is only considered complete when update to both primary and secondary have completed. Asynchronous PPRC will flag tracks on the primary to be duplicated to the secondary when time permits.PPRC is also the name IBM calls their implementation of the protocol for their storage hardware. Other vendors have their own implementation. For example the HDS implementation is called TrueCopy. It is a built in function of DataCore SANsymphony-V storage virtualization software named Synchronous Mirroring with active-active non-disruptive auto-failover and failback that spans across sites up to 100 km in distance. EMC also provides a similar capability on their VPLEX platforms.PPRC can be used to provide very fast data recovery due to failure of the primary site.In IBM zSeries computers with two direct access storage device (DASD) control units connected through dedicated connections, PPRC is the protocol used to mirror a DASD volume in one control unit (the primary) to a DASD volume in the other control unit (the secondary).In the IBM SAN Volume Controller PPRC is used to mirror a virtualized storage volume to remote (or the same) cluster.PPRC is also referred to as Metro Mirror when comparing to Global Mirror.".
- Q7160413 wikiPageExternalLink Sync-Mirroring-High-Availablility.aspx.
- Q7160413 wikiPageWikiLink Q1058586.
- Q7160413 wikiPageWikiLink Q1227430.
- Q7160413 wikiPageWikiLink Q1332873.
- Q7160413 wikiPageWikiLink Q17046408.
- Q7160413 wikiPageWikiLink Q1726323.
- Q7160413 wikiPageWikiLink Q2141460.
- Q7160413 wikiPageWikiLink Q2308665.
- Q7160413 wikiPageWikiLink Q37156.
- Q7160413 wikiPageWikiLink Q5421843.
- Q7160413 wikiPageWikiLink Q5968836.
- Q7160413 wikiPageWikiLink Q5968999.
- Q7160413 wikiPageWikiLink Q8529929.
- Q7160413 wikiPageWikiLink Q8818551.
- Q7160413 comment "Peer to Peer Remote Copy or PPRC is a protocol to replicate a storage volume to another control unit in a remote site. Synchronous PPRC causes each write to the primary volume to be performed to the secondary as well, and the I/O is only considered complete when update to both primary and secondary have completed.".
- Q7160413 label "Peer to Peer Remote Copy".