[Info-vax] satellite one hour ahead
Phillip Helbig undress to reply
helbig at asclothestro.multivax.de
Sat Oct 29 03:07:46 EDT 2016
In article <nv07cm$v5r$1 at dont-email.me>, David Froble
<davef at tsoft-inc.com> writes:
> > It would be nice if fresh installations were possible without requiring
> > a huge amount of post-upgrade configuration.
> >
>
> Ok, define "huge" ....
>
> Perhaps contrary to "the grinch" I've mentioned that I find VMS rather
> easy to install.
A vanilla install is easy.
> Just what custom stuff do you have that would be so hard to work with?
> I'll admit, such might exist, but I'm not aware of anything very hard,
> or time consuming.
I have three system disks in the cluster. Stuff which is modified and
common to all three is not on the system disks, but on a separate disk.
It's not just the logical names pointing to files.
> Now I must ask, do you have a disaster recovery plan? Even hobbyists
> should have something like this. If you do have such, then the steps to
> recover your desired configuration should already be defined. If not,
> now might be the time to work up such a document?
Sure. First, I have HBVS. Also, part of the reason for moving modified
stuff off the system disk is to make it easy to clone a system disk for
a given node from one for another node.
> I'm assuming that you have command files to set up the custom logicals
> to define your custom environment.
Right.
> I believe, without getting into
> details, that it's been mentioned there are 19 pieces of data that would
> be better placed into a single database, with better user interface.
Right.
> Regardless, 19 isn't such a large number.
No. But this is just basic VMS. Add TCPIP and so on and there is more.
> Not saying I'm always right,
> but, if it was me, I'd have a command file set up to move the required
> common files and set up the custom logicals. But that's just me, even
> if I'm not a full time, or even part time, system manager.
That's the easy part. However, there are various site-specific DCL
procedures on the system disk which do NOT have logical names pointing
to them. If these are the same on all nodes, either one maintains 3 (or
96) copies, or one moves them off the system disk, which means that each
of these files has to be edited to execute the corresponding common file
then exit. A fresh upgrade to a new version of VMS might make changes
in these files, which means reconciliation.
> Perhaps not, but I'm thinking I could do the upgrade (new install) and
> re-configure the custom environment in several hours. And when I was
> done, it would be repeatable. YMMV ....
Several hours, yes. If it works, fine. If not, then you have a
non-working system disk. Rollback is quick with a backup disk. Depends
on whether investing several hours is worth the effort.
> That written, I'll be the first to confess that some progress is called
> for. The idea of compressed libraries is one which is way past it's
> "sell by" date. And a few other things.
Indeed.
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