What happens when the size of a write I/O request exceeds the configured write aside size in a block-based storage system?
A. Cache is bypassed and I/O is written directly to storage
B. Write aside size is automatically reconfigured to the new write I/O size
C. Warning message to reduce the size of write I/O is displayed
D. Write data is lost and a re-write request is sent to the compute system
Given answer is correct. See ISM v4 Guide, Page: 268, under Write-back cache.