I have a single ultra 5 running as a secondary name server, Not much but it is rock solid - [root at ns2 ~]# uptime 07:51:08 up 419 days, 16:14, 1 user, load average: 0.00, 0.00, 0.00 [root at ns2 ~]# more /etc/redhat-release Aurora SPARC Linux release 2.0 (Kashmir FC3) [root at ns2 ~]#