I will do as you suggest. I have a disk in the box itself which is where the basis for the disk served by SLAVE comes from. So when I got to an unbootable state I have had to restore the disk. My good friend Malcolm suggested the following which is what worked with me without having to autogen: On 16/09/11 16:55, Malcolm Blunden wrote: Votes: Why do you run Autogen afterwards? A change of votes doesn't need any other change that I can think of. How are you changing the votes? Do you understand the arcane use of CURRENT and ACTIVE by SYSGEN? To set the votes to zero in a way that will apply at the next reboot, do $ MCR SYSGEN SYSGEN> USE CURRENT SYSGEN> SET VOTES 0 SYSGEN> WRITE CURRENT SYSGEN> ^Z That should fix it. Let me know if it doesn't work! Malcolm is absolutely right. However, you may need to do an AUTOGEN at some point in the future and it is good to have done one that has worked before then so that there are no surprises. (It should have been possible to get past the joining the cluster problem by doing a conversational boot and setting VAXCLUSTER to 0 so that the original problem could have been found and fixed rather than having to recreate the disk) Regards, Peter Coghlan.