A PowerHA 6 cluster has missed too many heartbeats during a large disk write operation, and has triggered the deadman switch. Which tunable can help ensure that HA Cluster Manager continues to run?
A. I/O Pacing and syncd frequency
B. I/O Pacing and asynchronous I/O
C. Syncd frequency and asynchronous I/O
D. Asynchronous I/O and disk queue_depth
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