5V0-22.23 · Question #119
The cluster level backend IOPS performance graph shows a higher-than-average number of IOPS for back-end storage. What is a possible reason for this situation?
The correct answer is A. Data resynchronization is in progress. A higher-than-average number of backend IOPS in a vSAN cluster typically indicates that data resynchronization is occurring. This process happens after events such as host failures, disk replacements, policy changes, or maintenance mode operations. During resync, vSAN generates…
Question
The cluster level backend IOPS performance graph shows a higher-than-average number of IOPS for back-end storage. What is a possible reason for this situation?
Options
- AData resynchronization is in progress.
- BNot enough capacity for slack space is on vSAN datastore.
- CThere is VM storage I/O traffic.
- DDRS is invoking multiple vMotion migrations.
How the community answered
(52 responses)- A79% (41)
- B13% (7)
- C2% (1)
- D6% (3)
Explanation
A higher-than-average number of backend IOPS in a vSAN cluster typically indicates that data resynchronization is occurring. This process happens after events such as host failures, disk replacements, policy changes, or maintenance mode operations. During resync, vSAN generates additional backend read/write operations to rebuild or reconfigure objects, increasing internal I/O activity beyond normal virtual machine traffic levels.
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