Global-active device system configuration
The following illustration shows a completed GAD system configuration, which
includes the following key components:
• Host server connected to the primary and secondary storage systems
with management software (alternate path or cluster or both, depending
on system configuration).
• Primary and secondary sites with VSP G1000 systems at each site. The
following system components are configured on the storage systems:
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Dynamic Provisioningvolumes that will become the primary and
secondary volumes of GAD pairs
¢
The GAD feature installed on the primary and secondary storage
systems
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A virtual storage machine on the secondary storage system
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A resource group on the secondary storage system
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An external volume group on each storage system for the quorum
disk
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Remote paths between the storage systems
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A CCI command device on each storage system
• External storage system with the quorum disk connected to both storage
systems using Universal Volume Manager
Configuration and pair management using CCI
4-3
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide