Dell-EMC
DES-1721 · Question #113
A customer is facing poor performance on all synchronously replicated volumes every Thursday between 4 PM and 6 PM. All departments have checked their applications for any batch jobs; however…
The correct answer is B. QoS Bandwidth Limit is enabled in the QoS node. See the full explanation below for the reasoning.
Question
A customer is facing poor performance on all synchronously replicated volumes every Thursday between 4 PM and 6 PM. All departments have checked their applications for any batch jobs; however, nothing was found. The I/O graphs do not show any anomaly and the replication links are not saturated. What is the possible reason for this behavior?
Options
- ASwitches used for replication are restarting
- BQoS Bandwidth Limit is enabled in the QoS node
- CData Progression is consuming all disk performance
- DAutomatic report creation is impacting replication
How the community answered
(43 responses)- A7% (3)
- B79% (34)
- C12% (5)
- D2% (1)
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