[Info-vax] satellite with more than one boot server
Phillip Helbig---undress to reply
helbig at astro.multiCLOTHESvax.de
Sat Feb 2 09:28:49 EST 2013
In article <Bk3XXRgOnZgg at eisner.encompasserve.org>,
koehler at eisner.nospam.encompasserve.org (Bob Koehler) writes:
> Any MOP server that is serving MOP in the cluster can download the
> image. Any disk server that is serving the system disk can
> complete the boot service.
> >
> > Is there any reason not to configure a satellite to boot from more than
> > one boot server in a given cluster?
>
> Having more than one provides redundancy, you can set up the
> satellite so that it can run while either server is down.
So the satellite requests a MOP download and essentially any machine can
serve this request. OK. Then the satellite requests a boot and any
node which is configured can boot it. Except for the ethernet address
of the satellite, which of course is fixed, these configurations could
presumably be identical or completely different (SCSSYSTEMID, IP
address, ALLOCLASS, SYS$SPECIFIC). I'm not sure if I would prefer them
to be identical or different. If I opt for different, the only
potential problem would be with TCPIP, and then only if I have common
TCPIP configuration files (i.e. for all system disks in the cluster).
IIRC, some node-specific TCPIP stuff is not in SYS$SPECIFIC but rather
in SYS$COMMON (or, when properly set up, somewhere else, even off the
system disk) with the node name used as a key. Is this right? If so,
then at least the TCPIP configuration would have to be the same.
More information about the Info-vax
mailing list