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Exam C9030-644 All Questions

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Exam C9030-644 topic 1 question 63 discussion

Actual exam question from IBM's C9030-644
Question #: 63
Topic #: 1
[All C9030-644 Questions]

In a Parallel Sysplex environment, which capability can provide transparent failover in the event of a coupling facility failure?

  • A. System-Managed CF Structure Duplexing
  • B. Multiple coupling links
  • C. Non-volatile coupling facility
  • D. Sysplex Distributor
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Suggested Answer: C 🗳️
A coupling facility structure user request for non-volatility and failure-isolation from connectors is not satisfied.
An allocated coupling facility structure was connected to with IXLCONN NONVOLREQ=YES, requesting non-volatility and failure-isolation from connectors. The structure is not in a coupling facility with non-volatile storage, or a connector to the structure is not failure-isolated from the structure instances.

System programmer response -
If all coupling facilities containing the structure are volatile, move a structure instance to a non-volatile coupling facility that provides failure-isolation from connectors, or accomplish the same result by changing a coupling facility to be non-volatile. Only one structure instance of a duplex structure needs to be in a non-volatile coupling facility for the structure to be considered non-volatile.
Incorrect Answers:
D: Sysplex Distributor is the strategic IBM solution for connection workload balancing across an IBM Parallel Sysplex.
References:
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.ieama00/idg36496.htm

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