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High Availability and Disaster Recovery Options for DB2 for Linux, UNIX, and Windows by Karol Zimnol, Marko Vrhovnik, Klaus Subtil, Mohamed Soliman, Jan Nelken, Anas Mosaad, Marcin Marczewski, Michael Loster, Adrian Kalicki, Ciaran De Buitlear, Stanislaw Bartkowski

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Geographically dispersed high availability and disaster recovery solutions
In this chapter, we concentrate on high availability (HA) scenarios with IBM PowerHA SystemMirror software, where nodes are in geographically dispersed locations.
One of the objectives in achieving high availability is to prevent a site from becoming a single point of failure (SPOF). Using geographically dispersed sites eliminates this possibility, because you have a standby site some distance from the primary site.
We describe both storage area network (SAN) SAN Volume ...

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