I've been reading through the 'Universal Password Deployment Guide' This
tells me how to check my SDI Domain Keys Servers using SDIDIAG. This all
checks out OK, but I note that this installation only has one SDI Domain
Key Server! Now this may or may not be a problem. We have six sites each
with a 2 node NW6.5 SP3a cluster. There are some additional single Netware
6.5 SP3a servers at additional very small sites and a couple of Netware
5.1 SP7 servers (in the process of being decommissioned). What I cant see
in the document is anything on best practise. My questions:

Should I have more that SDI Domain Key server?
If so how many, one per site?
If one is ok, what happens if that server goes down?

Any thoughts would be welcome