An EMC VNX supports several iSCSI Windows hosts, as well as a home directory structure for
fifty CIFS clients. The iSCSI hosts run an application with an I/O pattern that is 80% writes with a
2 MB I/O size. The customer reports overall write performance is less than expected. Your
examination of the VNX reveals frequent forced flushing. Which recommendation is most likely to
improve performance for the home directory clients?

A.
Increase the high watermark to 90%

B.
Change the write-aside value to 1023 KB

C.
Use a pre-fetch multiplier greater than the segment multiplier

D.
Split the iSCSI and file workloads to different LUNs