A customer has deployed a new application on a host using VNX storage. The new
application I/O size is 512 KiB, has a 50/50 read-write ratio, and its write behavior is
sequential and bursty. All other host applications are characterized by 4 KiB I/O random
writes. The customer has noticed degraded overall VNX performance during write bursts,
which is caused by the new application. Your analysis reveals a high rate of forced flushing,
as well as significant CMI congestion. What can you recommend to improve overall VNX
performance?
A.
Decrease the write-aside value
B.
Disable write back cache
C.
Increase the read cache area
D.
Enable mirror cache