How do I boot up solaris in degraded mode?

[petulia3478]

To boot up solaris in degraded mode, for instance after a hardware failure, you may want you system to boot up without a faulty CPU or Memory DIMM, set the following OBP parmeters, from the ok prompt

Note auto-boot may already be set

ok setenv auto-boot? true
ok setenv auto-boot-on-error? true