Networker

Re: [Networker] MSCS cluster backups

2006-02-06 17:46:35
Subject: Re: [Networker] MSCS cluster backups
From: Darren Dunham <ddunham AT TAOS DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 6 Feb 2006 14:44:15 -0800
> I have a MSCS configuration that working with savesets of 'All' in both
> the physical node and virtual node Networker configurations.  The only
> significant configuration notes are:
> 
> * physical nodes have a typical PC Networker config; no mention of
> virtual nodes

Right.

> * virtual nodes have their name and aliases in the Aliases
> configuration, and *@<physical node> for each possible permutation of
> physical node name in the Remote access field.  In my case, that was
>  *@dcs-file1
>  *@dcs-file1.cs.uiuc.edu
>  *@dcs-file1.ad.uiuc.edu
>  *@dcs-file2
>  etc...

I think I've got that.

> Then on the physical nodes, you need to list all of the virtual nodes
> and physical nodes in the C:\WINDOWS\system32\drivers\etc\hosts file.
> For good measure, I have the backups server in there too.

This wasn't true for me, but simplistically adding virtual node entries
in there actually *broke* all the ones that were working.  At least that
proved that name resolution was at the heart of the issue.

I don't know exactly which names it's using for what, but I've been able
to fiddle around with some of the names (I ended up renaming one of my
client instances) and got all the stuff in my primary cluster working
fine with 'All'.  I still have a couple of issues on another cluster,
but I'm hopeful that poking around with the name service in mind will
work fine.

A little extra information in the debug output from 'savefs' would make
this a lot easier....

Thank you again.

> FWIW, I am running 7.1.2 and had to get a patched .DLL for the MSCS
> client to support virtual nodes having subdirectory mounts as disks.  (I
> had an R:\Reports "volume" that Networker kept associating with the
> physical node.)  I know the patch was for 7.1.1 and 7.1.2 only, but I
> don't have the patch number.  The original case number was 3140800.

Fortunately, I don't have that situation here.  My clusters appear to
only have top-level volume assignments.

-- 
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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