As you validate the RAID controller configuration, which of these configured items impacts read performance at the controller level?

A customer calls in a trouble ticket complaining of unacceptable read I/O latency on a Cisco UCS C210 M2 server with an LSI MegaRAID 9260-8i with an 8-disk RAID-10 virtual disk.

As you validate the RAID controller configuration, which of these configured items impacts read performance at the controller level?
A . all disks are 146GB 6 Gb SAS 15K RPM SFF
B . read ahead cache is enabled
C . BGI rate = 0
D . strip size = 256k
E . no hot spare

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Answer: D