174IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
The advantages of SAN Volume Controller remote copy is that we can implement such
relationships between two SAN Volume Controller clusters with different backend disk
subsystems. in this case, you reduce the overall cost of the disaster recovery infrastructure
implemented on the production site (first site) high performance backend disk subsystems
and on the recovery site low-cost backend disk subsystems, even if backend disk subsystems
copy services functions are not compatible (for example, different models, different
constructors...). Figure 6-4 represents an example of ...
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