Re: HMC Connectivity Help

"Best" is in the eye of the beholder.

There are those who say it's ok for Payroll and other non critical stuff
to be on your open internal network but your FSP's should be on their own
private network. I suspect they know of some leak into FSP that I'm not
aware of or some such thing. In their school of thought your HMC would
utilize two NIC's. One would go to a separate subnet, vlan or physical
network to your FSP's and the other NIC would be for connecting to your
open internal network for remote HMC capability.

That being said, I just use one NIC in my HMC and put the FSP's (power
systems management port), HMC and my open internal network all together.
Just this week I had to get into my FSP's directly using ASM because of an
HMC issue (replacement mother card vs HMC password issue). So having to
go into the cones of silence room to get into ASM would be a bummer.
Especially after we move this to the offsite data center.

We also have redundant HMC's (thank God) which can control the machines in
each other's city in a pinch (like this week).


Rob Berendt