Exam D-PWF-OE-00 Topic 3 Question 43 Discussion
Actual exam question for EMC's D-PWF-OE-00 exam
Question #: 43
Topic #: 3
Question #: 43
Topic #: 3
What happens to active workloads during a PowerFlex upgrade?
Suggested Answer: C Vote an answer
PowerFlex is architected specifically for Non-Disruptive Upgrades (NDU).
Continuous Operation (Option C): Active workloads (databases, VMs, containers) continue to run and process I/O throughout the entire upgrade process.
How it works: When a node (SDS) needs to be upgraded, it is placed into Maintenance Mode.
The system ensures that the data on that node is mirrored elsewhere or accessible from the secondary copy. The SDC (client driver) on the application hosts automatically redirects I/O to the remaining healthy nodes. Once the node is upgraded and rebooted, it rejoins the cluster, and the SDC resumes sending I/O to it. This transparency ensures that applications experience zero downtime.
Continuous Operation (Option C): Active workloads (databases, VMs, containers) continue to run and process I/O throughout the entire upgrade process.
How it works: When a node (SDS) needs to be upgraded, it is placed into Maintenance Mode.
The system ensures that the data on that node is mirrored elsewhere or accessible from the secondary copy. The SDC (client driver) on the application hosts automatically redirects I/O to the remaining healthy nodes. Once the node is upgraded and rebooted, it rejoins the cluster, and the SDC resumes sending I/O to it. This transparency ensures that applications experience zero downtime.
by Janet at Sep 14, 2026, 06:23 AM
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