09-06-2011 06:57 AM
All my ports(F-port) are set to auto negotiate which includes 4Gbps(25%), 2Gbps(more than 50%) and 1Gbps(20 %) and only one manula 4Gbps.
The hosts are mostly HP-UX, linux,ESX, and window. Array includes VMAX and CX4 and CX3.
What is the best practice?
09-06-2011 11:23 AM
it doesn't mapper if you use auto or set the spped manually. Second one is more work and not flexible.
Speed negoiation works fine on Brocade switches. I set the speed only one storage ports to fixed values.
I hope this helps.
09-07-2011 07:25 AM
I on the other hand like to set things manual where ever its possible.
It does indeed not matter, but i want to notice failing optics or cable issues as soon as possible.
And although tooling exitst to assist me, i found fixing the speed at the highest possible setting for a particular port works best for my environment.
Instead off a lower speed negotiation in case of failing optics the link just drops completely.