Dear Managers,
My original questions were as follow.
> I have a two-node TruCluster using Tru64 UNIX version 5.1A. I need
> to remove (delete) the member upon which the cluster software was
> first installed and the cluster first built (I refer to it as the
> master node). Now I remember reading some documentation a long time
> ago that any addition or deletion of members of the cluster should be
> done from the master node (using clu_add_member or clu_delete_member
> as the case may be).
>
> Now my problem is what to do if I need to remove the master node?
>
> Any advice, caveats or war stories will be highly appreciated.
>
> Can anyone rember which was the document that would have mentioned
> that master node?
>
With thanks to Dr. Thomas Blinn, Raul Sossa and Dominic Christopher, my
problem is solved.
It is possible to delete any non-running member of the cluster from any
running cluster member without any problems. In particular, I will
quote for you the reply from Dr. Blinn, as his reply was a detailed
explanation.
>> The "master" is the system on which Tru64 UNIX and TruCluster software were
>> originally installed and upon which the "clu_create" command was issued to
>> build the cluster. That system was originally running as member 0 in the
>> context of what became the cluster. It created a cluster bootable system
>> from the original installation, and by default would have chosen member 1 as
>> the identifier for its own cluster member specific files. Later, if you add
>> a new member with "clu_add_member" a different member number is chosen, so
>> that each member has a unique member number.
>>
>> Because the cluster is "symmetric", you can use any running member to remove
>> any non-running member's part of the file system from the cluster. There is
>> not any particular special role for any particular member. The one thing
>> you can't readily do is wipe the boot disk of a member that has a private
>> boot disk; that is, if member "a" can't access member "b"'s boot disk and
>> you use member "a" to remove member "b" from the cluster, it won't be able
>> to wipe member "b"'s boot disk.
>>
>> This stuff is all documented in the cluster admin manual, as I recall.
>>
>> Tom
Additionally, Dominic Christopher reported actual experience
successfully removing and adding back the "master" member node without
any problems.
Thank you all.
Yours sincerely,
Robert Honore.
Received on Thu Feb 09 2006 - 15:56:36 NZDT