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A cluster indicates that a remote site has failed. What facilities exist in HACMP/XD://HAGeo to  ensure that the failure is not just a TCP/IP communication failure?()  

发布日期:2020-04-10

A cluster indicates that a remote site has failed....
A

Electronic Service Agent software provides a redundant heartbeat between sites.

B

A non-IP network and Dial Back Fail Safe provide redundant heartbeats between sites.

C

The GeoMirror Devices provide a link validation facility that guarantees the validity between sites.

D

The Site Notification Daemon maintains a heartbeat between sites via short haul Modems/line drivers and dark fibre.

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