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Inflation in IOs is seen in the vSAN stack” error in vSAN performance (2150013)

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Symptoms

In vSAN performance statistics, you see this message:

Inflation is seen in the vSAN stack.

Cause

This message indicate that the number of IOs is much higher at the vSAN disk group compared to the number of IOs seen in the virtual machine. This issue occurs due to unaligned IOs.

Resolution

To resolve this issue, ensure that all IOs issued are aligned on the 4K boundary.

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