I have many HBAs and I'm trying to find out the best method to
determine what the queue length should be. Is there any tests that can
be performed or queues that can be monitored to determine if queue
length should be modified. All of my servers run Emulex HBAs and are
using the default setting of 32. I have four ESX servers communicating
to the SAN using Active/Active with NMP RR enabled.
After performing backups I have several LUNS that go into the Hung
state. I have to constantly perform lunresets to bring them back to
life. All of my VM and datastores are configured in a one-to-one. I do
not store more than one VM in a datastore.
If any one can give me some ideas, that would be great.