A customer reports their hosts are performing slowly after migration to a new VMAX array.
You review performance data from the VMAX and note the following: – I/O sizes are 16 KB.
– The front-end director ports are operating at 1 GB auto-negotiate. – Several front-end
director ports are approaching 100% utilization. – A few director ports show little or no
utilization. What do you advise the customer?
A.
Add more HBAs to each host accessing the VMAX and consider setting the host I/O size
to 8 KB or less.
B.
Rebalance the hosts across all available FA ports and consider upgrading the SAN
switch ports to 2 GB or higher.
C.
Reduce the number of hosts that are accessing the VMAX and consider implementing
iSCSI connectivity.
D.
Rebalance the hosts across all available FA ports and consider setting the front-end
director ports to 2 GB or higher.