• In a two-site configuration, the external storage system is installed at the
primary site. If failure occurs at the secondary site, I/O from servers will
continue. However, if a failure occurs at the primary site, I/O from
servers will stop.
At the secondary site, you cannot install any external storage system for
quorum disks.
Related topics
•
Planning the quorum disk on page 3-10
Relationship between the quorum disk and number of remote
connections
When you use multiple remote connections, you should prepare as many
quorum disks as remote connections to avoid the possibility of a single
remote connection failure causing the suspension of the GAD pairs that are
using the other normal remote connections. Simultaneously, you must make
a combination of one quorum disk, one remote connection from the primary
storage system to the secondary storage system, and one remote connection
from the secondary storage system to the primary storage system.
Planning for global-active device
3-11
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide
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