Which function provides a high availability feature with dual-site, active-active access to a volume in IBM Spectrum Virtualize?

Which function provides a high availability feature with dual-site, active-active access to a volume in IBM Spectrum Virtualize?
A . Hypersite
B . Hyperledger
C . Hyper-Scale
D . HyperSwap

Answer: D

Explanation:

You can create an IBM HyperSwap topology system configuration where each I/O group in the system is physically on a different site. When used with active-active relationships to create HyperSwap volumes, these configurations can be used to maintain access to data on the system when power failures or site-wide outages occur.

References:https://www.ibm.com/support/knowledgecenter/en/STVLF4_7.7.1/spectrum.virtualize.771.doc/svc_hyperswap_configuration.html