[Info-vax] Idiots Guide To Clustering

[H Vlems]

On 15 mrt, 08:12, "Robert Jarratt" <nos... at nosp.am> wrote:
> I have never set up a cluster. All I need is something that will allow me to
> boot a MicroVAX from the network. I am running VMS 7.3. Can anyone point me
> at some simple instructions on how to set this up?
>
> Thanks
>
> Rob

You have a system that already runs VMS 7.3. I assume that it is a VAX
otherwise this is going to be rather difficult.
Log on to the host under SYSTEM and run @sys$manager:cluster_config.
There are several options you can select. First select the option that
sets up the running system as a cluster member
and as a boothost for cluster satellites.
The second time, run it to add a node to the NI cluster.

Basically what happens is that a few parameters in sys
$system:modparams.dat are set correctly.
ALLOCLASS : each cluster member in a VAX NI cluster must have a unique
and non-zero value
SCSNODE : must be identical to the DECnet nodename
SCSSYSTEMID: decnet-area*1024 + decnet-nodeaddress
INTERCONNECT: set to "NI"
BOOTNODE: set to "N"
In NCP (if you decide to use DECnet) the remote host is added.
The cluster member is registered with DECnet address and nodename, its
hardware address (08-00-2b... etc), secondary loader.
Make sure that the the attribute SERVICE of the DECnet circuit on the
boot host is set to enabled. Its default value is disabled,
which means that MOP load requests are ignored.
The satellite is booted (>>> B <ethernet device name>)

Note that a VAXcluster license is not needed to get the node booted
into the cluster. You can mount disks and tapes and transfer files
without a clusterlicense loaded.
Hans