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The newest addition to IBM's HACMP™/XD family, HACMP/XD for Geographic Logical Volume Manager (GLVM) is easier to configure and manage than the existing IP-based disaster recovery solutions. To ensure that the mirroring of the critical data across two remote locations is optimized to meet performance requirements at low costs, system administrators must plan to achieve that performance. This paper discusses the characteristics of a data-intensive application that requires data mirroring and explains what must be done to plan, provision, and tune for optimal performance in a cluster spanning two remote sites.
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